> Markdown version of [/jobs/ext/2016128-network-security-engineer](https://www.wearedevelopers.com/jobs/ext/2016128-network-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Network Security Engineer

- **Company:** C C MARTIN, INC.
- **Location:** Colorado Springs, CO, United States (Remote available)
- **Experience:** Expert
- **Salary:** $85,500.0 - $150,765.0
- **Contract:** Permanent contract
- **Skills:** Algorithm Design, Application Firewall, Automation of Tests, CompTIA Security+, Cyber Security, Information Systems, Computer Networks, System Configuration, VMware ESX Servers, Design of User Interfaces, Human-Computer Interaction, Internet Protocol, Internet Security, OSI Models, Information Systems Security Architecture Professional, Junos, Python (Programming Language), Network Security, Microsoft Security Essentials, Microsoft Visio, Multicasting, Network Configuration and Change Management, Networking Basics, Open Systems Interconnection (OSI), Windows PowerShell, Ansible, TCP/IP, Transmission Control Protocol (TCP), Strategies of Testing, User Datagram Protocols, Virtual Local Area Networks, Virtualization Technology, Network Switches, Network Routers, Scripting, Computer Networking Systems, Firewalls (Computer Science), Juniper, Integration Tests, Palo Alto Networks, Cisco, Vmware
- **Published:** August 10, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-network-security-engineer-top-secret-clearance-colorado-springs-co--123029c1-fecf-40f2-9ce0-47bede237fb9

## About the Role

You are a technically proficient network security professional with at least three years of relevant experience (preferably more) and a post-secondary degree or equivalent training. You combine deep knowledge of networking, OSI/TCP-IP fundamentals, and DoW security standards to solve complex problems, communicate clearly with diverse audiences, and mentor junior engineers. You thrive in a fast-paced environment, are willing to support night/weekend events, and can travel to alternate sites such as Schriever Space Force Base., * Network-security experience.

 * An Active Final Top-Secret U.S. security clearance, with a valid passport, and ability to travel to remote sites.
 * Department of War (DoW) Risk Management Framework (RMF) / Cybersecurity Risk Management Construct (CSRMC) and Security Technical Implementation Guides (STIG) Experience
 * IAT Level II 8140-compliant certification (e.g., Security+, GSEC, SCNP, SSCP, CISSP, CISA, GSE, SCNA, etc.). If you don't possess the certification, you must be able to obtain the certification within 60 days of starting.
 * Network Fundamentals: Strong grasp of the OSI model, TCP/IP, VLANs, UDP multicast, and ACL design/function.
 * Multi-Vendor Device Expertise: Hands-on configuration of firewalls (Juniper, Cisco, Palo Alto), routers, and switches (Juniper & Cisco), plus experience with virtualization (VMware/ESXi).

Desired Skills:

 * Proven experience developing cyber-secure network device configurations and applying DoW STIG compliance and system accreditation processes.
 * Ability to design security configurations, testing procedures, and documentation in accordance with NIST CVE and other security-design methodologies.
 * Intermediate to advanced knowledge of security design, development, and testing methodologies; capable of summarizing issues and recommending solutions to leadership.
 * Proficient in scripting/automation (Python, Ansible, PowerShell) and familiar with JUNOS routing OS.
 * Strong written and oral communication; adept at creating technical presentations and Visio drawings; effective collaborator within high-performing engineering teams.
 * Familiarity with virtualization hardening (VMware/ESXi STIG) and general security-hardening concepts for a wide range of niche products, software, and applications.

Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.

Clearance Level: Top Secret, Algorithms, Ansible, CISA - Certified Information Systems Auditor, CISSP - Certified Information Systems Security Professional, Cisco Network Systems, Communication Skills, Communication Systems, CompTIA Security+, Computer Networks, Corporate Social Responsibility, Documentation, Enterprise Protection, Firewall Administration, Firewalls, Forecasting, GSEC - GIAC Security Essentials Certification, IAT - Information Assurance Technical, IP (Internet Protocol), Incentive Programs, Integration Testing, Internet Security, Juniper Networks Product Family, Leadership, Leading Edge Technology, Mentoring, Microsoft Visio, Multicast, Network Configuration Management, Network Routers, Network Security, Network Switching, Network Systems, Open Systems Interconnection (OSI), Operating Systems, Presentation/Verbal Skills, Problem Solving Skills, Python Programming/Scripting Language, Quality Assurance Methodology, Risk Management, Risk Management Framework (RMF), SCNA - Security Certified
Network Architect, SCNP - Security Certified Network Professional, SSCP - Systems Security Certified Practitioner, Schematics, Scripting (Scripting Languages), Security Clearance, Security Design, TCP (Transmission Control Protocol), TCP/IP (Transmission Control Protocol/Internet Protocol), Team Player, Technical Presentation, Test Automation, Test Plan/Schedule, Testing, Top Secret Clearance, U.S. National Institute of Standards and Technology (NIST), UDP (User Datagram Protocol), United States Citizen, User Interface/Experience (UI/UX), VLAN (Virtual Local Area Network), VMWare, VMWare ESX/ESXi, Virtualization, Willing to Travel, Windows PowerShell, Work From Home, Writing Skills

## Description

At Lockheed Martin, our Command and Control, Battle Management and Communications (C2BMC) National Team (C2NT) is pioneering the development and integration of cutting-edge technologies to advance the Missile Defense System, safeguarding the United States and its allies. Our collaborative and agile organization operates in a fast-paced environment, driving innovation through tasks such as sensor/weapon integration, algorithm development, user interface development, automated testing, cyber security, enterprise/infrastructure services, and enhancing leading-edge missile defense technologies.

The Work

Designs, plans, and validates secure network communications systems for the C2BMC program. You develop detailed specifications, schematics, and capacity forecasts; select hardware/software; implement firewalls, switches, routers, and security relevant devices; and conduct rigorous testing. You apply DoW RMF/CSRMC/STIG compliance, produce required IA documentation, and harden all devices. Work is performed independently under general direction, with critical reviews at key milestones, and you influence long-range organizational goals by collaborating with senior leadership.

Please Note:

 * This position requires a government security clearance; you must be a US Citizen for consideration.
 * This position is based at a Lockheed Martin facility in Colorado Springs, CO. The role requires flexibility to travel to alternate work locations as needed.


## Related Videos

- [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team)
- [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers)
- [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing)
- [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics)
- [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy)
- [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure)

## Related Articles

- [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)
- [Events like RSAC Get You CISOs. Developers Decide What Actually Gets Deployed.](https://www.wearedevelopers.com/magazine/693-events-like-rsac-get-you-cisos-developers-decide-what-actually-gets-deployed)
- [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)
- [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities)
- [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks)
- [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)