211 Network Administrators jobs in Dallas

A North American third-party logistics (3PL) firm is seeking to hire a Network Security Engineer to join their team in the Dallas area. With an expansive fleet of trucking, marine, and rail transportation assets, they provide comprehensive logistics solutions to a variety of industries across the United States, Mexico, and Canada. This contract-to-hire role will be directly responsible for administering systems to ensure network security, as well as developing response tactics to mitigate incoming threats.

In their over five decades of business, the company has built an intricate network of transportation solutions that span the continent, providing a one-stop-shop for its clients who seek reliable and timely delivery of their product. With ongoing growth, the company continues to be a leader in the 3PL space, pioneering sustainability and efficiency in its transportation solutions. The industries that they serve span from construction to food-and-beverage to health care and beyond, so you will be directly contributing to protecting the assets of these vital enterprises. You will be using your expertise in network security to administer Palo Alto Firewalls, FortiGate Firewalls, and F5 Load Balancers. This role will also provide exciting opportunities for collaboration and leadership, as you mentor junior security engineers. Required Skills & Experience

• Bachelor's degree in Computer Science, Information Systems, or other related field
• 7+ years of experience in administering corporate firewalls and working with Panorama Experience and Global Protect VPN systems
• Knowledge of maintaining load balancers, as well as using OSI models in the context of enterprise networks
• Proficiency in Windows, Red Hat Linux, and Oracle Linux operating systems
• Detail-oriented and able to manage multiple tasks at once, willing to work collaboratively in a team setting

• Direct experience working with Palo Alto Firewalls and F5 load balancers

• 40% Palo Alto Firewalls
• 30% FortiGate Firewalls/FortiManager/FortiAnalyzer
• 30% F5 Load Balancers

• 70% Hands On
• 15% Management Duties
• 15% Team Collaboration

• Medical Insurance - Four medical plans to choose from for you and your family
• Dental & Orthodontia Benefits
• Vision Benefits
• Health Savings

Network Security Engineer

Dallas, Texas

Hybrid

Contract

$60/hr - $75/hr

A North American third-party logistics (3PL) firm is seeking to hire a Network Security Engineer to join their team in the Dallas area. With an expansive fleet of trucking, marine, and rail transportation assets, they provide comprehensive logistics solutions to a variety of industries across the United States, Mexico, and Canada. This contract-to-hire role will be directly responsible for administering systems to ensure network security, as well as developing response tactics to mitigate incoming threats.

In their over five decades of business, the company has built an intricate network of transportation solutions that span the continent, providing a one-stop-shop for its clients who seek reliable and timely delivery of their product. With ongoing growth, the company continues to be a leader in the 3PL space, pioneering sustainability and efficiency in its transportation solutions. The industries that they serve span from construction to food-and-beverage to health care and beyond, so you will be directly contributing to protecting the assets of these vital enterprises. You will be using your expertise in network security to administer Palo Alto Firewalls, FortiGate Firewalls, and F5 Load Balancers. This role will also provide exciting opportunities for collaboration and leadership, as you mentor junior security engineers. Required Skills & Experience

• Bachelor's degree in Computer Science, Information Systems, or other related field

• 7+ years of experience in administering corporate firewalls and working with Panorama Experience and Global Protect VPN systems

• Knowledge of maintaining load balancers, as well as using OSI models in the context of enterprise networks

• Proficiency in Windows, Red Hat Linux, and Oracle Linux operating systems

• Detail-oriented and able to manage multiple tasks at once, willing to work collaboratively in a team setting

Desired Skills & Experience

• Direct experience working with Palo Alto Firewalls and F5 load balancers

What You Will Be Doing

Tech Breakdown

• 40% Palo Alto Firewalls

• 30% FortiGate Firewalls/FortiManager/FortiAnalyzer

• 30% F5 Load Balancers

Daily Responsibilities

• 70% Hands On

• 15% Management Duties

• 15% Team Collaboration

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

Network Security Engineer needs 7+ years Network Security (F5 BigIP Load Balancer) & 7+ years Network Engineering with expertise in NetScaler ADCs (load balancing, application delivery, security solutions)

Network Security Engineer requires:

o 7+ years Network Security (F5 BigIP Load Balancer)

o 7+ years Network Security (Fortinet, Juniper Routing & Switching)

o 7+ years Network Engineering with expertise in NetScaler ADCs (load balancing, application delivery, security solutions)

o Hands-on with NetScaler App Firewall (preferred)

o Integration experience with Cisco ASA, Palo Alto, Checkpoint Firewalls

o Experience analyzing NetScaler logs and generating traffic, events, server health, and compliance reports (HIPAA)

o CCA-N, CCP-N, CCE-N

o Familiarity with MPLS WAN, Internet VPN, SSL VPN

Do you want to tackle the biggest questions in finance with near infinite compute power at your fingertips?

G-Research is a leading quantitative research and technology firm, with offices in London and Dallas.

We are proud to employ some of the best people in their field and to nurture their talent in a dynamic, flexible and highly stimulating culture where world-beating ideas are cultivated and rewarded.

This is a hybrid role based in our new Dallas infrastructure hub where we work on the latest technologies in a cutting-edge environment.

The role

As G-Research's Lead Network Security Engineer, you will play a critical role in managing, implementing and optimising a hyperscale network security infrastructure.

As a technical leader, you will oversee complex security architecture initiatives, mentor peer engineers, handle escalated incident response efforts and ensure compliance with the latest security standards. Our company roadmap is centred on automation, therefore a background in automation and interest in leveraging automation is key to this role.

Key responsibilities of the role include:

• Mentoring junior and mid-level engineers, overseeing team activities and providing guidance in complex troubleshooting and architecture decisions
• Implementing and managing advanced security solutions using firewalls, proxy, system hardening, treat profile and segmentation strategies to secure the intellectual data
• Acting as a lead escalation for critical security incidents
• Developing automation playbooks, network security policies framework and consolidation, treat model and drive root cause analysis with corrective actions
• Overseeing network vulnerability assessments, penetration testing coordination and remediation planning
• Championing the integration of automated tools for infrastructure build, day two support and lifecycle management of all security infrastructure using platforms like Python, Terraform, and vendor APIs, leveraging tools such as Algosec, Tufin, Jenkins and Git
• Working closely with infrastructure, DevOps and application teams to embed security best practices throughout the technology stack

• Extensive experience in network engineering and security engineering, along with proven architectural experience in trusted, untrusted and DMZ environments
• Proven leadership experience in a senior or lead engineering role, with the ability to drive the team and work individually
• Strong understanding of network protocols and the OSI model, with hands-on experience in TCP/UDP-based applications, routing, switching and load balancing
• Extensive knowledge of network security technologies, including firewalls, VPNs, proxies, MACsec, IPsec, HTTPS, certificate chains, DNS, NTP, AAA, and domain-based authentication and authorisation
• Expertise with multiple security vendors, such as, Palo Alto, Fortinet, Check Point and F5
• Strong understanding of Zero Trust principles, segmentation, and secure cloud networking in AWS or Azure
• Familiarity with scripting and automation using Python, Ansible, or Terraform for example
• Certifications such as CISSP, CCIE Security, GIAC (GSEC/GCIH/GXPN), Palo Alto, Fortinet or equivalent highly preferred

• Core network with VxLAN EVPN DC architecture experience
• Experience with hybrid or multi-cloud environments
• Prior involvement in M&A technical integrations
• Background in building SOC capabilities or working with MSSPs
• Excellent written and verbal communication skills
• Firewall automation experience is beneficial

• Market-leading compensation plus annual discretionary bonus
• Lunch provided in the office (via GrubHub)
• Informal dress code and excellent work/life balance
• Excellent paid time off allowance of 25 days
• Sick days, military leave, and family and medical leave
• Generous 401(k) plan
• 16-weeks' fully paid parental leave
• Medical and Prescription, Dental, and Vision insurance
• Life and Accidental Death & Dismemberment (AD&D) insurance
• Employee Assistance and Wellness programs
• Generous relocation allowance and support
• Great selection of office snacks, and hot and cold drinks
• On-site gym and car parking

• Configure, manage, and troubleshoot Cisco ASA and Juniper SRX firewalls
• Develop and implement firewall policies and rule sets to ensure network security
• Perform regular security assessments and vulnerability scans to identify and mitigate risks

• Implement and manage network security measures, including IPS/IDS, VPNs, and NAC
• Monitor network traffic for suspicious activity and respond to security incidents
• Ensure compliance with industry standards and regulations

• Respond to security incidents and provide on-call support as needed 1 2.
• Troubleshoot complex security issues and provide timely resolutions 1 2.

• Create and maintain comprehensive documentation for all implemented security configurations and associated troubleshooting steps
• Maintain accurate network inventory and documentation.

• Implement and maintain security best practices.
• Ensure compliance with industry standards and regulations.
• Conduct security assessments and vulnerability scans.
• Implement and manage access control policies.
• Collaboration and Communication:
• Collaborate with cross-functional teams, including system administrators, security engineers, and application developers.
• Communicate effectively with stakeholders to provide updates and resolve issues.
• Provide technical support and training to end-users.
• Work with vendors to resolve hardware and software issues.

• Strong understanding of network security principles and technologies (firewalls, VPNs, IPS/IDS, NAC).
• Proficiency in configuring and managing Cisco ASA and Juniper SRX firewalls
• Knowledge of network protocols and technologies (TCP/IP, OSPF, BGP, VLANs, etc.)
• Experience with network monitoring and management tools
• Familiarity with cloud security concepts and technologies (AWS, Azure, GCP).
• Knowledge of scripting languages like Python or Perl is a plus

• Firewall : Juniper and Cisco

• Strong analytical and problem-solving skills.
• Excellent communication and interpersonal skills.
• Ability to work independently and as part of a team.
• Strong Operation management skills.
• Ability to adapt to rapidly changing technologies.

• Bachelor's degree in computer science, Information Technology, or a related field.
• 7-10 Years of Domain Experience.
• Equivalent firewall certification would be preferred.

• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or a related field.
• Minimum of 7 years of experience in network security engineering.
• Extensive experience with network security technologies such as firewalls, IDS/IPS, VPNs, SIEM solutions, and endpoint security.
• Strong understanding of TCP/IP, routing protocols, and network architecture.
• Proficiency in scripting languages (e.g., Python, Bash) for automation.
• Experience with cloud security (AWS, Azure, GCP) is a plus.
• Relevant certifications such as CISSP, CCIE Security, or GIAC are highly desirable.
• Excellent problem-solving, analytical, and communication skills.
• Ability to work effectively in a team environment and manage multiple projects.

• Act as a technical lead in delivery of projects acting as a network security SME, ensuring that solutions remain in scope and are aligned to agreed business requirements, appropriate delivery methodologies are followed and that effective governance is applied;
• Delivery of smaller stand-alone projects as required;
• Provide support and guidance to consultants working on other Network Security projects;
• Provide peer reviews of HLD, LLD and other project documentation as required;
• Work with internal and external stakeholders to understand business requirements and prepare appropriate technical solution designs at both high and low levels.

• Maintain day to day records of project work to allow accurate billing and reporting of consultancy time;
• Maintain effective network of business contacts within Telecommunication and their partner community;
• Maintain and grow their own knowledge to ensure this maintains fully relevant to the network security services practice and its clients;
• Have strong presentation and written/verbal communications skills at multiple levels of an organization;
• Have a minimum of 5+ years of network security consulting, design and delivery experience.

• Firewalls: Checkpoint, Juniper, Palo Alto, Cisco ASA/FTD, Fortinet;
• Proxy Services: Bluecoat (forward/reverse proxy), Zscaler;
• Load Balancers: F5 (LTM/GTM);
• IDP/IPS: FirePower/Sourcefire IPS/IDS, McAfee
• Identity & Access Management: Cisco Client, Aruba Clearpass policy manager;
• Routing & Switching: (CCNP/CCNA level), and good knowledge of SD-WAN deployments;
• Good understanding of key technologies such as: VRF, dynamic routing (EIGRP/BGP/OSPF), MPLS, DMVPN, GRE, IPSec VPN
• Remote Access VPN: GlobalProtect, Pulse Secure, Cisco AnyConnect;
• Knowledge of Cloud deployments (Azure/AWS/GCP);
• Experience with building, maintaining, reviewing all configurations/settings/policies on chosen technologies;
• Experience of multi-vendor, managed outsourcing environments;
• Experience working with operational environments following ITIL frameworks;
• Excellent documentation and presentation skills;
• Excellent troubleshooting skills (technical and non-technical);
• Ability to review processes and procedures - and improve them;
• Experience participating in network & system security projects to provide:
• Business requirements analysis and support for Solutions Architects;
• Production of detailed infrastructure designs including physical and virtual aspects of security components;
• Migration of complex legacy infrastructures to new managed security services platforms;
• Understanding and demonstrable experience working in an Agile environment and actively participating in a Scrum team;
• Experience using Jira to help define user stories, tasks and associated estimates.

• CCNA/CCNP (Enterprise/Security/Data Center); CISSP or equivalent;
• Palo Alto (PCNSA/PCNSE);
• Checkpoint (CCSA/CCSE);
• Fortinet (NSE)