1,922 Linux Engineer jobs in the United States

**MANTECH** seeks a motivated, career and customer-oriented **Linux Engineer** to support our current NCIS contract out of **Quantico, VA.**
**Responsibilities include but are not limited to:**
+ The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and unclassified networks in support of Cyber investigations and operations.
+ Candidates will be responsible for optimizing, maintaining, and securing Linux systems to ensure optimum performance with minimal downtime.
+ Candidates may also be asked for creative contributions to improve existing processes and for surge support for various initiatives in areas related to their area of expertise
+ Travel may be required to support operations.
**Minimum Qualifications:**
+ Bachelor's degree and minimum of 4 years of experience working with Red Hat Enterprise Linux 7.X, 8.X, 9.X with a strong command-line interface (CLI) skillset (additional 2 years of experience may be substituted in lieu of degree).
+ Experience securing Linux systems with DISA STIG requirements.
+ Experience with Red Hat based tools such as Ansible and Red Hat Satellite.
+ Familiarity with at least one common scripting language such as Python, Perl, bash, etc
+ Experience with virtualization tools (Vmware, KVM, Proxmox)
**Preferred Requirements:**
+ Experience with monitoring solutions such as Icinga2 or Nagios Experience and / or willingness to learn DevOps and Automation.
+ Familiarity with the DIACAP and/or RMF accreditation processes, specifically with configuring Linux systems in compliance with the Security Technical Implementation Guides (STIGs).
+ Experience with maintaining a secure, standard OS build process.
+ Experience installing and managing PostgreSQL.
**Security Clearance Required** :
+ Must have an active Top Secret with the ability to obtain SCI.
**Physical Requirements:**
+ Sedentary Work
ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at and provide your name and contact information.

**Description**
SAIC is recruiting a Linux Engineer for one of our programs supporting the FDA. This role will be responsible for system administration of various Linux operating system facets within a VMware and AWS (Amazon Web Services) environment. Responsible for system maintenance, as well as application installation and configuration within a Linux Operating System. The engineer will be supporting a data center migration task to both a cloud environment and another data center. The engineer will have the ability to utilize several migration techniques to support this migration.
**Key technologies required for this role are:**
+ RHEL/CentOS/Rocky 7+, Amazon Linux, Ubuntu 18+ VMware vCenter / vSphere / Horizon View
+ Amazon Web Services (EC2, EBS, RDS, IAM, VPCs, SecurityGroups, NACLS, etc.)
+ Apache / NGINX Web Services
+ Networking and related protocols (DNS, SMB, NFS, HTTP, SSH, etc.)
+ SSO and MFA (AD, LDAP, SAML, OID)
+ High Performance Computing / Cluster Computing
+ Other desired technologies:
+ Scripting (Shell and Python)
+ Automated configuration management (Ansible, Puppet, etc.)
+ SLURM HPC Scheduler
**Responsibilities:**
+ Resolve issues and assess escalation to vendor support
+ Have the willingness to accept challenges outside of your expertise and comfort zone
+ Provide exemplary client communication skills
+ Ability to organize and work on multiple projects or tasks while maintaining schedules, deliverables, and industry leading SLA and uptime
**Qualifications**
**Skills:**
+ Advanced knowledge of clustering services, load balancing and replication services
+ Demonstrated experience in creating documentation of designs and solutions
+ Exposure to application, database, storage and network configuration within a Linux operating system administration
+ Ability to effectively communicate complex enterprise solutions to internal staff and customer
+ Excellent written and verbal communication skills
+ Experience with containerization and orchestration (Docker, Singularity, Podman, Kubernetes, ECS, EKS, Fargate)
**Education and Clearance:**
+ BS or MS in Computer Science/Computer Information Systems/Engineering
+ 5-7+ years of relevant work experience in Linux Administration
+ 1+ years of experience working in an AWS cloud environment
+ Desired - One Linux related certification, AWS Solutions Architect, or SysAdmin associate certification
+ Must be able to obtain a Public Trust
Target salary range: $120,001 - $60,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.
REQNUMBER:
SAIC is a premier technology integrator, solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT, including cloud services; cyber; software; advanced analytics and simulation; and training. We are a team of 23,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately 6.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see Working at SAIC. EOE AA M/F/Vet/Disability

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a **Linux Engineer** to join our team of passionate individuals in **Chantilly, VA** . In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission.
**Your Impact:**
Our Linux Engineer will join a team of highly skilled technical professionals supporting the design, implementation, deployment, and ongoing maintenance of mission-critical systems and networks. The ideal candidate will bring strong expertise in Linux-based environments, system hardening, automation, and troubleshooting. We value individuals who are both detail-oriented and quick-thinking - able to respond to complex and evolving challenges with agility. This role requires the ability to rapidly adapt to shifting operational requirements, implement necessary system or configuration changes, and ensure the reliability, security, and performance of Linux systems across the enterprise.
**Responsibilities:**
Design, implement, maintain, and troubleshoot Linux-based systems and infrastructure for a number of networks. The Linux Engineer should identify areas to and implement where possible efforts to optimize system performance, security, and reliability, often handling tasks like server configuration, scripting, and system optimization.
**Requirements:**
Candidate should have experience in several of the following areas:
+ Experience building and deploying Linux based networks, integrating COTS solutions and connecting to networks using current technologies and a minimum of 8 years of experience in the following areas:
+ Automation (Ansible to scale of 20+ devices)
+ Advanced bash scripting
+ Advanced Logging/SEIM experience
+ Linux Kernel knowledge / debugging
+ Docker
+ Hypervisor
+ various Linux flavors
+ Nginx
+ Certificate Management
**Clearance Required:**
+ TS/SCI with poly
**Minimum Education:**
+ Bachelors
**Minimum Years of Experience:**
+ 8
**Preferred:**
+ Experience configuring:
+ Atlassian Products
+ Git products
+ AI/LLM
+ Splunk
+ Python Scripting
+ System Hardening
+ MySQL/PostgresSQL
+ Basic Networking
+ Windows Administration
#javelin

Linux Engineer
Dallas, Texas
**Onsite**
Contract
$65/hr - $75/hr
A Multinational Aerospace company is looking for a **Linux Engineer** in Dallas Texas. The company is well known in the aerospace society and specializes in manufacturing and deploying aircrafts, jet propulsions, and landing gears in both the military and commercial aspects.
The company is currently in the process of expanding their IT presence in the Dallas Metroplex area. They are looking for individuals who are particularly skilled in Squid Proxy and RADIUS Servers.
**Contract Duration** : 6 Months - On Site
**Required Skills & Experience**
+ 5+ or more years experience using Linux
+ Intensive knowledge of Squid Proxy and RADIUS Servers
+ Basic understanding of authentication and network protocols
+ Experience with LDAP and Active Directory
+ Fluent in shell scripting (Bash, Python, Perl)
+ Strong analytical and troubleshooting skills
**What You Will Be Doing**
Tech Breakdown
+ Squid Proxy
+ RADIUS
+ Linux
+ Shell
+ AD
**Daily Responsibilities**
+ Build and manage Squid Proxy servers on Linux Platforms
+ Run RADIUS servers (FreeRADIUS)
+ Combine Squid and RADIUS servers with AD, Active Directory, or other identity management systems
+ Troubleshoot both Squid and RADIUS servers to optimize performance
+ Maintain systems security systems
+ Fixing or patching up Security Vulnerabilities in Linux Servers
+ Develop scripts to smoothly run administration and reporting
+ Examine both Squid and RADIUS servers logs and metrics to report and fix issues
**You will receive the following benefits:**
+ Medical Insurance - Four medical plans to choose from for you and your family
+ Dental & Orthodontia Benefits
+ Vision Benefits
+ Health Savings Account (HSA)
+ Health and Dependent Care Flexible Spending Accounts
+ Voluntary Life Insurance, Long-Term & Short-Term Disability Insurance
+ Hospital Indemnity Insurance
+ 401(k) including match with pre and post-tax options
+ Paid Sick Time Leave
+ Legal and Identity Protection Plans
+ Pre-tax Commuter Benefit
+ 529 College Saver Plan
Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP's Employment Accommodation policy. Applicants need to make their needs known in advance.
**Posted by:** Carter Smith
**Specialization:**
+ System Administration

We are seeking a skilled and proactive Linux Engineer to join our infrastructure team, supporting over 1,500 Linux devices across hospitals and data centers. This role is critical to maintaining system stability, supporting break/fix operations, and driving modernization initiatives across the enterprise. The ideal candidate will bring deep technical expertise, a structured approach to troubleshooting, and a passion for building resilient, audit-ready systems.
**Key Responsibilities**
+ Manage, monitor, and maintain Linux servers across physical and virtual environments.
+ Perform root cause analysis and resolution for system outages and performance issues.
+ Support patching, upgrades, and configuration changes in alignment with change control policies.
+ Collaborate with cross-functional teams to support infrastructure projects and migrations.
+ Develop and maintain scripts for automation, compliance, and asset visibility.
+ Ensure systems meet security and audit requirements, including vulnerability remediation.
+ Maintain documentation including SOPs, runbooks, and inventory trackers.
+ Participate in on-call rotation and respond to incidents with urgency and precision.
**Required Qualifications**
+ Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).
+ 5+ years of hands-on experience managing Linux systems (RHEL, CentOS, Ubuntu).
+ Experience with virtualization platforms (VMware, Nutanix) and enterprise monitoring tools.
+ Strong understanding of networking fundamentals and storage integration.
+ Familiarity with configuration management tools (e.g., Ansible, Puppet).
+ Ability to create audit-ready documentation and support compliance workflows.
**Preferred Skills**
+ Experience in healthcare or regulated environments.
+ Exposure to containerization (Docker, Kubernetes).
+ Familiarity with ITIL practices and change management protocols.
Equal Employment Opportunity
This organization does not discriminate in any way to deprive any person of employment opportunities or otherwise adversely affect the status of any employee because of race, color, religion, sex, sexual orientation, genetic information, gender identity, national origin, age, disability, citizenship, veteran status, or military or uniformed services, in accordance with all applicable governmental laws and regulations. In addition, the facility complies with all applicable federal, state and local laws governing nondiscrimination in employment. This applies to all terms and conditions of employment including, but not limited to: hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. If you are an applicant with a mental or physical disability who needs a reasonable accommodation for any part of the application or hiring process, contact the director of Human Resources at the facility to which you are seeking employment; Simply go to to obtain the main telephone number of the facility and ask for Human Resources.

Cincinnati, OH is preferred then next is Charlotte, NC - I only have 2 sub spots and they will need to take an assessment before getting an interview.
Job Title - Infrastructure Engineer - Linux
Job Summary - We are looking for a highly skilled Infrastructure Engineer with a strong focus on Linux systems to join our team. The Infrastructure Engineer will be responsible for managing and maintaining our Linux-based infrastructure, ensuring its reliability, performance, and security. This role requires collaboration with various teams, including IT, development, and operations, to support and enhance our infrastructure.
Abilities/Skill and Other Requirements - Exceptional Technical Skills are assumed
+ TOP: Self-starter with a 'learn and apply' attitude in an intense, fast-paced environment.
+ TOP: Experience working with leading stakeholder groups, including technical, product, business, and vendor teams.
+ TOP: Experience with Linux system administration and engineering.
+ Highly Desired: Experience with Linux tools such as Ansible
+ Highly Desired: AIX and GPFS/Storage Scale Experience
+ Excellent communication, collaboration, and documentation skills.
+ Proven track record of managing and maintaining Linux-based systems.
+ Ability to anticipate and manage infrastructure risks and issues with full transparency.
+ Confident, solution-oriented independent worker.
+ Must work independently while managing different sets of business, technology, and vendor stakeholders.
+ Proven problem-solving and organizational skills.
+ Experience with cloud platforms such as Azure or Google Cloud.
+ Experience with VMWare
+ Demonstrated ability in team motivation and delegation.
+ Local to Cincinnati region will be given preference.
+ Some travel to the Blue Ash Technical center may be required during critical deployments.
Key Responsibilities
+ Manage and maintain Linux-based systems ensuring their reliability, performance, and security.
+ Manage and maintain set of tools such as Ansible and Shell Scripting
+ Monitor system performance and troubleshoot issues to ensure high availability and performance.
+ Collaborate with development and operations teams to support and enhance the infrastructure.
+ Implement and maintain security best practices for Linux systems.
+ Develop and maintain documentation for system configurations, procedures, and processes.
+ Apply conflict resolution skills to resolve infrastructure issues daily.
+ Manage infrastructure risk, develop mitigation plans, and escalate decisions and unresolved issues daily.
+ Work with peers to develop and drive goals, define technical specifications, and detailed implementation plans for infrastructure projects.
+ Effectively apply skills to impact infrastructure decisions.
+ Focus on the benefits to be realized and the outcomes to be achieved.
ManpowerGroup is committed to providing equal employment opportunities in a professional, high quality work environment. It is the policy of ManpowerGroup and all of its subsidiaries to recruit, train, promote, transfer, pay and take all employment actions without regard to an employee's race, color, national origin, ancestry, sex, sexual orientation, gender identity, genetic information, religion, age, disability, protected veteran status, or any other basis protected by applicable law.

Job Description
· Perform operational tasks such as server provisioning, upgrades, patching, changes, and testing.
 · Participate in IT system implementations from requirements gathering through implementation and support transition.
 · Document newly implemented or existing systems in Linux and processes according to quality, compliance, and regulatory requirements.
 · Install and configure
 · Automate Infrastructure tasks in Ansible
 · Build virtual machines in Azure or AWS
 · Identify and address technical or operational risks and inefficiencies with IT systems.
 · Develop and maintain documentation and utilize change management processes for operational best practices and systems maintenance.
 · Collaborate with project managers in the development of detailed project plans.
 · Develop and execute a support transition plan for system implementations.
Provide assistance for issues escalated from downstream support teams.
We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: and Requirements
- Bachelor's degree
- 3-5 years of experience focusing mainly on delivery processes in Linux, with operations, building virtual machines, and designing and implementing solutions
- Virtualization and networking experience in VMware, Nutanix, or similar platforms
- Scripting and automation experience in Ansible
- Experience with deployment in hyperscalers such as Azure and AWS
- Familiarity with ITIL, change management, and documentation processes
- good communication skills Scripting experience in Git

Hiring:  W2 Candidates Only

Linux System Engineer
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI with Polygraph
Employee Type: Regular
Percentage of Travel Required: None
Type of Travel: None
* * *
**The Opportunity:**
We are seeking a skilled Linux System Engineer to join our dynamic team in Laurel, Maryland. The ideal candidate will be responsible for managing and optimizing our IT infrastructure, including servers, networks, and security systems. This role involves leading critical projects, implementing cutting-edge technologies, and ensuring the security and integrity of our technical environment.
**Responsibilities:**
+ **System Administration:**
+ Provide system administration for the assigned infrastructure.
+ Establish and maintain security protocols related to users.
+ Apply security patches and operating system upgrades to ensure the security and integrity of the technical environment.
+ **Project Support:**
+ Support new infrastructure projects.
+ Maintain all configuration documentation for the assigned infrastructure.
+ **Kubernetes and Containerization:**
+ Exposure to managing and maintaining Kubernetes clusters.
+ Exposure to Set up, maintain, and improve clusters for various projects.
+ Exposure to Work with tools such as Docker, Rancher, Slurm, and Puppet.
+ **Security and Compliance:**
+ Secure systems to meet hardening and compliance requirements.
+ Optimize networking for clusters.
**Qualifications:**
_Required:_
+ 14+ years of experience as an Infrastructure Engineer and System Administrator in Linux environments.
+ Bachelor's degree in Computer Science or related field.
+ Experience in cloud infrastructure and containerization technologies.
+ Experience in system hardening.
+ Ability to communicate with customers and set expectations.
+ Experience in improving processes and systems using conceptualizing, reasoning, and interpretation.
+ Skill in conducting extensive investigations to understand the root causes of problems.
+ Ability to solve a wide range of difficult and unique issues across functions and/or businesses
_Desired:_
+ RHCSA certification.
+ Security+ certification.
+ Demonstrated technical innovation in supporting business objectives and mission.
+ Ability to influence others to accept new concepts, practices, and approaches.
-
**___**
**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:
$103,800 - $218,100
_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._