3,055 Linux Administrator jobs in the United States
Linux Administrator
Posted today
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Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: Secret
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Continental US
Anticipated Posting End: There is not an anticipated end date for this posting since applications are needed on an ongoing basis.
**The Opportunity:**
CACI is looking for a Linux Administrator to support the Department of the Air Force (DAF) Enterprise IT as a Service (EITaaS) program? The ideal candidate will provide Linux OS expertise and be responsible for the implementation of all RMF controls to ensure DoD compliance. Additionally, candidate will perform troubleshooting support for application teams as required.
On the EITaaS program, CACI will deliver enhanced capabilities and services to implement and operate an enterprise ITSM solution, enterprise service desk, endpoint management and security solution, as well as CONUS/OCONUS field support and life cycle support for end user devices to enable the DAF to transition focus from IT operations to mission operations.
**Responsibilities:**
Serve as a LINUX Administrator to configure, manage, and troubleshoot OS related issues and be responsible for the implementation of all RMF controls? The ideal candidate will be a LINUX OS expert with documented experience implementing RMF compliance controls and hardening best practices within DoD. In this role, you will regularly collaborate with other teams and stakeholders to properly identify issues, document processes, and test resolutions.
+ Configure, manage, and maintain Linux OS systems in various environments (physical, virtual, cloud)
+ High level troubleshooting of common applications and their interactions with the underlying operating systems? ?
+ Act as an escalation point for advanced OS troubleshooting of supported servers
+ Familiarity with containerization (Docker, Kubernetes)
+ Understanding of storage systems and backup solutions
+ Collaborate with DAF enterprise and program security teams to ensure requirements are met
+ Communicate effectively and collaboratively with customers, stakeholders, and peers
+ Experience with configuration management tools (e.g., Ansible, Puppet)
+ Experience managing RHEL servers in a DoD environment.
+ Experience working in a secure location managing devices on a SIPR network
+ Experience with RMF and STIG requirements
+ Experience with ITILv4
+ Experience with Agile Scrum methodologies
+ Strong skills with MS Office tools (Excel, Word, Project, Visio) and SharePoint
+ Excellent verbal and written communication skills
**Qualifications:**
_Required:_
+ 10+ Years of relevant experience (Bachelor's Degree in applicable field may be substituted for 5 years of experience).
+ Must have DoD Secret clearance
+ DoD 8140 compliance; Security + certification at a minimum.
+ Experience testing, deploying, and troubleshooting the installation of RHEL and third-party software updates
+ Demonstrated experience with planning, configuring, deploying, and implementing automated software and firmware patching, such as WSUS, SCCM, YUM, SolarWinds, etc. for heterogeneous operating systems environments (e.g., Microsoft Windows and Linux)
+ Proficiency in RHEL installation, configuration, and maintenance
+ Strong command-line skills and scripting abilities (Bash, Python)
+ Knowledge of networking protocols and services (DNS, DHCP, HTTP/S, etc.)
_Desired:_
+ Experience with ServiceNow
+ Experience with cloud platforms (AWS, Azure, GCP)
+ Knowledge of DevOps practices and tools
+ Familiarity with database administration
+ Acts independently to expose and resolve problems
This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI.
**___**
**What You Can Expect:**
**A culture of integrity.**
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
**An environment of trust.**
CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
**A focus on continuous growth.**
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.
**Your potential is limitless.** So is ours.
Learn more about CACI here. ( Range** : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here ( .
The proposed salary range for this position is:
$75,200-$158,100
_CACI is_ _an Equal Opportunity Employer._ _All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any_ _other protected characteristic._
Linux administrator
Posted 10 days ago
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Job Description
We are looking for a skilled Linux Administrator to join our team in Albuquerque, New Mexico.
This is a Contract-to-Permanent position where you will play a key role in designing, implementing, and maintaining Linux-based systems to support research-specific computing needs.
The ideal candidate will have expertise in virtualization, storage solutions, and security, and will collaborate closely with various stakeholders to develop scalable, on-premises computing environments.
Must be local, this is an onsite role in Albuquerque.
Responsibilities:
- Assess the current computing environment to identify research-specific needs and design optimized system configurations.
- Implement and streamline software setups to migrate existing systems to upgraded environments.
- Evaluate and select virtualization technologies that align with research and security requirements.
- Collaborate with vendors and procurement teams to acquire necessary hardware and software.
- Architect and maintain virtualization and storage solutions that support virtual machines with high redundancy.
- Design and implement network and security solutions for physical and virtual servers across multiple locations.
- Build, manage, and troubleshoot Linux-based virtual machines designed to support research databases.
- Ensure systems meet project-specific requirements and adhere to best practices for performance and security.
- Provide ongoing maintenance and support for Linux systems, ensuring reliability and scalability.
- Perform additional duties as needed to support organizational goals.
Requirements
For immediate consideration please apply:
- Minimum of 2 years of experience in Linux system administration.
- Proficiency in Red Hat Linux (RHEL) and related technologies.
- Strong knowledge of server virtualization tools such as VMware, KVM, and Hypervisor.
- Experience with storage and virtualization architecture, including redundancy solutions.
- Familiarity with Oracle and research database environments.
- Solid understanding of network and security principles for server and storage setups.
- Ability to collaborate effectively with vendors and cross-functional teams.
- Background in computer programming is a plus.
Background required prior to employment.
Technology Doesn't Change the World, People Do.®
Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.
Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app ( and get 1-tap apply, notifications of AI-matched jobs, and much more.
All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.
© 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use ( .
Linux Administrator
Posted 10 days ago
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Job Description
**Type of Requisition:** Regular
**Clearance Level Must Be Able to Obtain:** Secret
**Public Trust/Other Required:** None
**Job Family:** Systems Administration
**Skills:**
DISA STIG,Network Architecture,Red Hat Ansible,Red Hat Enterprise Linux (RHEL),System Center Operations Manager (SCOM)
**Certifications:**
Red Hat Certified System Administrator (RHCSA) in Red Hat OpenStack - Redhat Certified Systems Administration RHEL 9, Comp TIA Security + Certified - CompTIA
**Experience:**
8 + years of related experience
**US Citizenship Required:**
Yes
**Job Description:**
**HOW A LINUX SYSTEM ADMINISTRATOR WILL MAKE AN IMPACT:**
+ Provide system administration support for Linux operating systems including installing software, applying patches, managing file systems, monitoring performance, and troubleshooting alerts from monitoring tools.
+ Analyzes and resolves problems associated with the operating system, servers, hardware, and applications software. Detects, diagnoses, and reports related problems on servers, including system failure analysis and recovery, insuring the consistency and integrity of file systems.
+ In-depth hardware configuration knowledge, shell programming expertise, and a solid understanding of standard concepts, practices, and procedures. Relies on experience and judgment to plan and accomplish goals, performs a variety of tasks, and works under general supervision.
+ Responsible for daily monitoring of interface programs between multiple enterprise systems; review daily logs and ensure successful completion.
+ Perform incremental and full cold backups/patching.
+ Responsible for DoD Linux Security Technical Implementation Guides (STIGs).
+ Provide performance metrics and usage charts, including CPU usage, disk usage and network uptime for the Linux Servers.
+ Provide general maintenance, upgrades, and new installation of servers and coordinate with data center personnel to execute. Document and generate business processes for day-to-day and emergency support procedures.
+ Install, test, and verify Linux Security patches; coordinating, documenting requirements and timelines, and working closely with service owners.
+ Perform systems security administration functions, including creation and maintenance of customer profiles and accounts.
+ Responsible for creating and/or maintaining standard operating procedures for the Linux documentation library.
+ Implement, configure, update, and maintain Ansible servers and scripts.
+ Implement, configure, update, and maintain STIG Manager servers and scripts.
+ Implement, configure, update, and maintain the Linux operating system firewall.
+ Experience in handling NFS, CIFS, and SMB permissions.
**WHAT YOU'LL NEED TO SUCCEED:**
**Education/Equivalent Training Required:**
+ High school diploma or AA. Preferred - Bachelor's degree in information technology, computer science or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
**Required Experience:**
+ 8+ years of overall demonstrated experience as a RHEL 7 and/or RHEL 8 Servers
**Required Technical Skills Requirements:**
+ Experience managing RHEL 7 and RHEL 8 Linux servers
+ Highly versed in Linux administration and best practices
+ Familiar with enterprise network architectures
+ Experience with automated configuration management (Ansible, Puppet, Chef, etc.)
+ Familiar in programming/scripting skills for automation (Bash, Ruby, Python, Perl, etc.)
+ General understanding of Linux internals (system calls, file systems, processes, etc.)
+ General understanding of TCP/IP and related protocols (HTTP, FTP, NFS, etc.)
+ Experience with PowerShell scripting engine to automate tasks.
+ Excellent problem solving, analytical, and decision-making capabilities, including understanding user requirements, troubleshooting technical issues, successfully resolving issues and challenges, and developing creative solutions for process improvement.
+ Dependability, in that the individual is consistently at work and on time, follows instructions, responds to management direction, and solicits feedback to improve.
+ Must have customer service experience as this position will require candidate to engage with senior military and government leadership.
+ Must be able to present your ideas clearly through briefings, meetings, and interaction with leadership of different skill sets.
+ Must be able to provide training sessions as required.
+ Must be able to engage with stakeholders to ensure tasks are progressing and meeting timelines.
+ Excellent communication, documentation, organizational and collaborative skills.
+ Strong teamwork and engagement as a project team member.
+ Ability to assimilate information rapidly, motivated to self-study new requirements.
+ Maintain current industry knowledge of relevant concepts, practices, and procedures.
+ Maintain and upgrade certifications.
+ Other duties may be assigned, directed, or requested.
**Certification Requirements:**
+ Must Possess the appropriate baseline certification(s) to achieve DoD 8570.01-M Information Assurance Technical (IAT) Level II (CompTIA Security+ ce) and additional Computing Environment (CE) certification (RHEL7 and/or RHEL 8) When 8140 requirements are implemented on program/contract, employee will need to conform to 8140 certification standards.
**Security Clearance Level Requirements:**
+ Must have a minimum of an active Secret clearance at time of interview and candidate must maintain active clearance.
**Location:**
+ Falls Church, Virginia
+ Hours and days TBD upon hire.
+ Three (3) days onsite with up to two (2) days telework. Onboarding/transition in period requires on-site support up to 60 days. GECOS work schedules are subject to change on direction by mission requirements from GDIT or USG leadership.
**Travel:**
+ Up to 10%. Travel may include attending conferences up to two times annually and site visits as needed.
#GDITPriority #GDIT #GECOS
The likely salary range for this position is $119,000 - $161,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.
We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.
Join our Talent Community to stay up to date on our career opportunities and events at Opportunity Employer / Individuals with Disabilities / Protected Veterans
Linux Administrator
Posted 8 days ago
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Job Description
Hiring: W2 Candidates Only
Linux Administrator
Posted 16 days ago
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Job Description
DESCRIPTION:
Responsible for implementing and maintaining all Linux Servers in virtual environment in a private cloud datacenter
Required Skills:
Red Hat Linux Administrator
Preferred Skills:
SQL Server Administrator, Zabbix, Patch Management Plus,
Linux Server Administrator
Posted 1 day ago
Job Viewed
Job Description
This is where you save and sustain lives
At Baxter, we are deeply connected by our mission. No matter your role at Baxter, your work makes a positive impact on people around the world. You'll feel a sense of purpose throughout the organization, as we know our work improves outcomes for millions of patients.
Baxter's products and therapies are found in almost every hospital worldwide, in clinics and in the home. For over 85 years, we have pioneered significant medical innovations that transform healthcare.
Together, we create a place where we are happy, successful and inspire each other. This is where you can do your best work.
Join us at the intersection of saving and sustaining lives- where your purpose accelerates our mission.
THIS IS WHERE you build trust to achieve results!
Provides technical expertise in deploying and supporting medical device and software integration in healthcare environments. Requires the ability to work effectively with cross-functional teams that include customer resources in collaboration with internal clinical and technical professionals. Responsible for installing, configuring, and maintaining hardware and software solutions including monitoring the performance of servers. Analyzes and resolves problems associated with the operating system's servers, hardware, applications, and software.
What You'll Be Doing:- Adheres to all environmental, health and safety SOP's, equipment, policies and procedures, including any department specific requirements.
- Working with customers to requisition servers and deploy the DoseIQ and DeviceBridge applications
- Installing, monitoring and patching Linux servers running applications in Docker and Kubernetes
- Provide L3 support for application, server and device hardware to support teams and device deployment teams
- Serve as a point of contact and collaborate with all levels of the customer's organization (IT, Biomedical Engineering, project management, executive, and clinical) on product, system, and device integration initiatives.
- Participation in daily team calls and customer calls
- Maintain system security and address vulnerabilities
- Participate in 24x7 support rotation
- Must be willing to travel up to 20%
- Master's degree in biomedical engineering, computer engineering, computer science, software engineering or IT-related field with 3+ years of related experience or Bachelor's in related field with 4+ years of relevant experience
- Experience in Linux system administration
- Familiarity with load balancing, firewalls, network configuration
- Networking experience; IP tables, Linux address routing, subnetting
- Kubernetes and Docker experience
- Experience with server virtualization
- Public Key Infrastructure (PKI) experience
- Experience in file sharing: NFS, OpenEBS, Block Storage
- Experience with configuration, maintaining and tuning high availability systems
- Familiarity with security and antivirus best practices
- Ability to work independently and with team members from diverse backgrounds
- Ability to work in evenings, including the weekends and holidays, as needed.
- Strong communication skills for coordinating across teams
- A drive to learn and master new technologies and techniques
- Excellent attention to detail
We understand compensation is an important factor as you consider the next step in your career. At Baxter, we are committed to equitable pay for all our employees, and we strive to be more transparent with our pay practices. To that end, this position has a base salary range of $88,000 to $121,000. The above range represents the expected base salary range for this position. The actual salary may vary based upon several factors including, but not limited to, relevant skills/experience, time in the role, business line, and geographic/office location.
US Benefits at Baxter (except for Puerto Rico)
This is where your well-being matters. Baxter offers comprehensive compensation and benefits packages for eligible roles. Our health and well-being benefits include medical and dental coverage that start on day one, as well as insurance coverage for basic life, accident, short-term and long-term disability, and business travel accident insurance. Financial and retirement benefits include the Employee Stock Purchase Plan (ESPP), with the ability to purchase company stock at a discount, and the 401(k) Retirement Savings Plan (RSP), with options for employee contributions and company matching. We also offer Flexible Spending Accounts, educational assistance programs, and time-off benefits such as paid holidays, paid time off ranging from 20 to 35 days based on length of service, family and medical leaves of absence, and paid parental leave. Additional benefits include commuting benefits, the Employee Discount Program, the Employee Assistance Program (EAP), and childcare benefits. Join us and enjoy the competitive compensation and benefits we offer to our employees.For additional information regarding Baxter US Benefits, please speak with your recruiter or visit our Benefits site: Benefits | Baxter
Equal Employment Opportunity
Baxter is an equal opportunity employer. Baxter evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status or any other legally protected characteristic.
Know Your Rights: Workplace Discrimination is Illegal
Reasonable Accommodations
Baxter is committed to working with and providing reasonable accommodations to individuals with disabilities globally. If, because of a medical condition or disability, you need a reasonable accommodation for any part of the application or interview process, please click on the link here and let us know the nature of your request along with your contact information.
Recruitment Fraud Notice
Baxter has discovered incidents of employment scams, where fraudulent parties pose as Baxter employees, recruiters, or other agents, and engage with online job seekers in an attempt to steal personal and/or financial information. To learn how you can protect yourself, review our Recruitment Fraud Notice.
Linux Server Administrator
Posted today
Job Viewed
Job Description
This is where you save and sustain lives At Baxter, we are deeply connected by our mission. No matter your role at Baxter, your work makes a positive impact on people around the world. You’ll feel a sense of purpose throughout the organization, as we know our work improves outcomes for millions of patients. Baxter’s products and therapies are found in almost every hospital worldwide, in clinics and in the home. For over 85 years, we have pioneered significant medical innovations that transform healthcare. Together, we create a place where we are happy, successful and inspire each other. This is where you can do your best work. Join us at the intersection of saving and sustaining lives— where your purpose accelerates our mission. THIS IS WHERE you build trust to achieve results! Provides technical expertise in deploying and supporting medical device and software integration in healthcare environments. Requires the ability to work effectively with cross-functional teams that include customer resources in collaboration with internal clinical and technical professionals. Responsible for installing, configuring, and maintaining hardware and software solutions including monitoring the performance of servers. Analyzes and resolves problems associated with the operating system’s servers, hardware, applications, and software. What You'll Be Doing: Adheres to all environmental, health and safety SOP’s, equipment, policies and procedures, including any department specific requirements. Working with customers to requisition servers and deploy the DoseIQ and DeviceBridge applications Installing, monitoring and patching Linux servers running applications in Docker and Kubernetes Provide L3 support for application, server and device hardware to support teams and device deployment teams Serve as a point of contact and collaborate with all levels of the customer’s organization (IT, Biomedical Engineering, project management, executive, and clinical) on product, system, and device integration initiatives. Participation in daily team calls and customer calls Maintain system security and address vulnerabilities Participate in 24x7 support rotation Must be willing to travel up to 20% What You'll Bring: Master’s degree in biomedical engineering, computer engineering, computer science, software engineering or IT-related field with 3+ years of related experience or Bachelor’s in related field with 4+ years of relevant experience Experience in Linux system administration Familiarity with load balancing, firewalls, network configuration Networking experience; IP tables, Linux address routing, subnetting Kubernetes and Docker experience Experience with server virtualization Public Key Infrastructure (PKI) experience Experience in file sharing: NFS, OpenEBS, Block Storage Experience with configuration, maintaining and tuning high availability systems Familiarity with security and antivirus best practices Ability to work independently and with team members from diverse backgrounds Ability to work in evenings, including the weekends and holidays, as needed. Strong communication skills for coordinating across teams A drive to learn and master new technologies and techniques Excellent attention to detail We understand compensation is an important factor as you consider the next step in your career. At Baxter, we are committed to equitable pay for all our employees, and we strive to be more transparent with our pay practices. To that end, this position has a base salary range of $88,000 to $121,000. The above range represents the expected base salary range for this position. The actual salary may vary based upon several factors including, but not limited to, relevant skills/experience, time in the role, business line, and geographic/office location. US Benefits at Baxter (except for Puerto Rico) This is where your well-being matters. Baxter offers comprehensive compensation and benefits packages for eligible roles. Our health and well-being benefits include medical and dental coverage that start on day one, as well as insurance coverage for basic life, accident, short-term and long-term disability, and business travel accident insurance. Financial and retirement benefits include the Employee Stock Purchase Plan (ESPP), with the ability to purchase company stock at a discount, and the 401(k) Retirement Savings Plan (RSP), with options for employee contributions and company matching. We also offer Flexible Spending Accounts, educational assistance programs, and time-off benefits such as paid holidays, paid time off ranging from 20 to 35 days based on length of service, family and medical leaves of absence, and paid parental leave. Additional benefits include commuting benefits, the Employee Discount Program, the Employee Assistance Program (EAP), and childcare benefits. Join us and enjoy the competitive compensation and benefits we offer to our employees.For additional information regarding Baxter US Benefits, please speak with your recruiter or visit our Benefits site: Benefits | Baxter Equal Employment Opportunity Baxter is an equal opportunity employer. Baxter evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status or any other legally protected characteristic. Know Your Rights: Workplace Discrimination is Illegal Reasonable Accommodations Baxter is committed to working with and providing reasonable accommodations to individuals with disabilities globally. If, because of a medical condition or disability, you need a reasonable accommodation for any part of the application or interview process, please click on the link here and let us know the nature of your request along with your contact information. Recruitment Fraud Notice Baxter has discovered incidents of employment scams, where fraudulent parties pose as Baxter employees, recruiters, or other agents, and engage with online job seekers in an attempt to steal personal and/or financial information. To learn how you can protect yourself, review our Recruitment Fraud Notice . 1 Baxter Parkway|Deerfield, IL 60015|United States of America #J-18808-Ljbffr
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Linux Administrator Associate
Posted today
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Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.
At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.
Join us in shaping a new era in space and find a career that's built for you.
Lockheed Martin is actively seeking an early career Linux administrator to support our Space business area unclassified & classified programs located in our Cape Canaveral, Florida, US offices. Primary job responsibilities include, but are not limited to installing, configuring, securing, hardening, remediating, troubleshooting, testing, upgrading, and decommissioning of data center equipment, network switches, virtual servers, physical servers, client workstations and network-attached storage equipment. Application support to program engineers is an essential part of the day-to-day responsibilities that ensures a successful synergy between program deliverables and the underlying IT infrastructure. The selected candidate will be responsible for the ongoing operations, maintenance and continuous improvement of multiple business applications that are hosted on the Linux systems.
If you are looking for a hands-on role with the flexibility to learn and apply a wide range of core technical capabilities, this position may be of interest to you. This is a non-telecommuting position that requires you to be on-site full time and includes some off shift work with occasional weekend activities. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information.
Basic Qualifications:
• This position requires the ability to obtain a DOD Secret clearance, and maintain it throughout the life span of the position
• This position requires the ability to obtain a current DoD 8570.01-M IAT Level II or III certification (i.e., Security+, CASP, CISSP), within the first three months of employment, and maintain it throughout the life span of the position
• US Citizenship required for access to the work facility
• Hand-on experience with at least one Linux distribution
• Ability to move, rack, stack and install physical equipment by lifting up to 40 lbs.
Desired Skills:
• Bachelor of Science degree from accredited University
• Active DOD Secret clearance (investigation within 5 years or CV enrolled)
• Fundamental understanding of the OSI model
• Current DoD 8570.01-M IAT Level II or III certification (i.e., Security+, CASP, CISSP)
• Ubuntu Linux Administration (system installation/configuration, Kickstart, KVM Virtualization, RHV/ovirt virtualization)
• Directory Services Administration (FreeIPA/RedHat IdM)
• Experience with Scripting and Automation (i.e., Ansible, Perl, Bash, Shell Scripting, etc.)
• Hands-On with Cloud Technologies (OpenStack, OpenShift, AWS, Azure)
• Knowledge of Directory Services (i.e., LDAP, Kerberos, TLS Certificates, DNS)
• Experience with vulnerability remediation and security management (i.e., system hardening, log management, configuration management (i.e., Nessus, McAfee, WSUS, SCCM, Ivanti, Shavlik, Blade Logic, Splunk, ACAS, SCAP, HBSS, etc.))
• Experience with Network Protocols (i.e., IPv4 / IPv6 Routing, DHCP, Syslog, Tunneling protocols, packet analysis, etc.)
• Ability to demonstrate effectiveness in communications
• Experience designing and presenting using Microsoft PowerPoint and Visio drawing tools
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Secret
Other Important Information You Should Know
Expression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.
Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
Schedule for this Position: 9x80 every other Friday off
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.
With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.
If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.
Experience Level: Experienced Professional
Business Unit: SPACE
Relocation Available: No
Career Area: Information Technology
Type: Full-Time
Shift: First
Principal Linux Administrator
Posted today
Job Viewed
Job Description
2025-07-14
**Country:**
United States of America
**Location:**
CA222: 2006 E El Segundo Blvd BldgE04 2006 East El Segundo Boulevard Building E04, El Segundo, CA, 90245 USA
**Position Role Type:**
Onsite
**U.S. Citizen, U.S. Person, or Immigration Status Requirements:**
Active and transferable U.S. government issued security clearance is required prior to start date?
U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance?
**Security Clearance:**
DoD Clearance: Secret
At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of tomorrow's threat. Our team solves tough, meaningful problems that create a safer, more secure world.
**What You Will Do:**
+ Provide IT systems administration in a heterogeneous RedHat Enterprise / Microsoft Windows and environment.
+ Experience troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
+ Work with Cybersecurity professionals to maintain security requirements and provide documentation on advanced IT processes and procedures and other tasks as assigned.
+ Lead and coordinate the Red Hat Installation and configuration.
+ Design, develop and deploy Red Hat Podman containers.
+ Experience with Server, Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, RAID, backup and server replication methods?
+ Install and configure software applications requested by end users.
+ Experience documenting and training on advanced IT processes and procedures and other tasks as assigned.
+ Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.
+ Systems are operational 24x7 and occasionally require work effort beyond standard work hours.
+ Full time 100% Onsite position.
**Qualifications You Must Have:**
+ Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience.
+ Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
+ Experience with some of, but not limited to, the following technologies: Red Hat Enterprise Server, Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration and networking administration experience, Windows or Linux administration, backup, and recovery enterprise suites.
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**Qualifications We Prefer:**
+ Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) and an Operating System Certification.
+ Experience with Server architecture and troubleshooting methods and be able to assist in developing solutions and documentation to a variety of technical problems.
+ Experience using VMWare vCenter, vSphere, Linux Desktops, Windows desktops (Windows 10, 11), Splunk and ESX and/or other virtual computing methods.
+ Direct working experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.
+ Experience with data storage, NAS, and SAN technologies and solutions.
+ Experience supporting engineers in software, simulations, and hardware development.
+ Experience with Microsoft WSUS, SCCM, and/or Exchange
+ High Performance Computing (HPC) experience in a Linux environment.
+ Scripting Experience.
**What We Offer:**
Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.
**Learn More & Apply Now!**
The salary range for this role is 90,000 USD - 182,000 USD. The salary range provided is a good faith estimate representative of all experience levels.
RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills.
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company's performance.
This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.
RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.
_RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans' Readjustment Assistance Act._
**Privacy Policy and Terms:**
Click on this link ( to read the Policy and Terms
Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.
Principal Linux Administrator
Posted today
Job Viewed
Job Description
2025-06-23
**Country:**
United States of America
**Location:**
CA222: 2006 E El Segundo Blvd BldgE04 2006 East El Segundo Boulevard Building E04, El Segundo, CA, 90245 USA
**Position Role Type:**
Onsite
**U.S. Citizen, U.S. Person, or Immigration Status Requirements:**
Active and transferable U.S. government issued security clearance is required prior to start date?
U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance?
**Security Clearance:**
DoD Clearance: Top Secret
At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of tomorrow's threat. Our team solves tough, meaningful problems that create a safer, more secure world.
**What You Will Do:**
+ Provide IT systems administration in a heterogeneous RedHat Enterprise / Microsoft Windows and environment.
+ Experience troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
+ Work with Cybersecurity professionals to maintain security requirements and provide documentation on advanced IT processes and procedures and other tasks as assigned.
+ Lead and coordinate the Red Hat Installation and configuration.
+ Design, develop and deploy Red Hat Podman containers.
+ Experience with Server, Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, RAID, backup and server replication methods?
+ Install and configure software applications requested by end users.
+ Experience documenting and training on advanced IT processes and procedures and other tasks as assigned.
+ Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.
+ Systems are operational 24x7 and occasionally require work effort beyond standard work hours.
+ Full time 100% Onsite position.
**Qualifications We Prefer:**
+ Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience.
+ Active and transferable U.S. government issued Top Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
+ Experience with some of, but not limited to, the following technologies: Red Hat Enterprise Server, Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration and networking administration experience, Windows or Linux administration, backup, and recovery enterprise suites.
+ Experience with Server architecture and troubleshooting methods and be able to assist in developing solutions and documentation to a variety of technical problems.
+ Experience using VMWare vCenter, vSphere, Linux Desktops, Windows desktops (Windows 10, 11), Splunk and ESX and/or other virtual computing methods.
**Preferred Qualifications:**
+ Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) and an Operating System Certification.
+ Direct working experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.
+ In-depth working experience in Linux Server
+ Experience with data storage, NAS, and SAN technologies and solutions.
+ Experience supporting engineers in software, simulations, and hardware development.
+ Experience with Microsoft WSUS, SCCM, and/or Exchange
+ High Performance Computing (HPC) experience in a Linux environment.
+ Scripting Experience.
**What We Offer:**
Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.
**Learn More & Apply Now!**
The salary range for this role is 90,000 USD - 182,000 USD. The salary range provided is a good faith estimate representative of all experience levels.
RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills.
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company's performance.
This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.
RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.
_RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans' Readjustment Assistance Act._
**Privacy Policy and Terms:**
Click on this link ( to read the Policy and Terms
Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.