Principal Enterprise Network Engineer Security Clearance

Position: Principal Enterprise Network Engineer with Security Clearance
Are you a seasoned network and communications expert with a passion for secure, high-stakes systems? We are seeking a Principal-level Network Engineer to lead the design, installation, integration, maintenance, and hardening of mission-critical cyberspace and communications infrastructure — spanning enterprise networks, fiber/copper backbones, secure telephony, ground RF and satellite communications, cryptographic/COMSEC systems, and voice/data/video platforms. If you bring deep experience in network architecture, RF/telephony systems, secure communications, cabling/transmission, and field installation — and thrive on hands-on technical work with blueprints, schematics, and field deployment — this role puts you at the heart of communications infrastructure that really matters.

Why Work with us? Applied Research Solutions (ARS) is respected as a world-class provider of technically integrated solutions as we deliver premier talent and technology across our focused markets for unparalleled, continuous mission support.

Awarded a Best Places to Work nominee since 2020, ARS recognizes that without our career- driven, loyal professionals, we would not be able to deliver state-of-the-art results for our mission partners. We firmly believe that prioritizing our employees is of the upmost importance. We provide a culture where our employees are challenged to meet their career goals and aspirations, while still obtaining a work/life balance.

ARS employees are motivated through our industry competitive benefits package, our awards and recognition program, and personalized attention from ARS Senior Managers.

Key Responsibilities
* Plan, design, implement, and maintain secure enterprise- and mission-level network infrastructures (voice, data, video) across multiple platforms and communication media (copper, fiber, RF, satellite, microwave, telemetry, space systems).
* Oversee installation, modification, repair, and overhaul of communication systems and equipment: from end-user client devices to core infrastructure, RF ground stations, cryptographic devices, secure telephony, intrusion detection systems, radio, satellite links, and network backbone.
* Apply communications-security (COMSEC) program expertise, ensuring physical, cryptographic, transmission, and emission security standards are enforced.
* Interpret and enforce technical orders, blueprints, wiring diagrams, schematics, circuit diagrams and project documentation to ensure correct installation, integration, and interoperability.
* Conduct site/equipment surveys, validate equipment interfaces, and assess facility design for communications/IT infrastructure integration.
* Review, evaluate, and approve project packages and amendments related to communications and network systems implementation.
* Provide technical guidance and advisory support to project leads, facility planners, and stakeholders regarding communications-system design, IT-program installation, minor construction planning, and coordination with base communications systems (or equivalent).
* Oversee testing and validation efforts, use test equipment and special tools to verify system performance, troubleshoot issues, and ensure reliable operation of voice/data/video/radio/cryptographic systems.
* Collaborate with cross-functional teams — including systems engineers, IT, RF, security/compliance — to ensure configuration, architecture, and integration conformity across all communications and network systems.
* Will perform other duties as assigned.

Minimum Qualifications / Required Skills
* U.S. Citizenship required.
* Active Top-Secret (TS) security clearance.
* Bachelor’s degree (BA/BS) in relevant field (Electrical Engineering, Computer/Network Engineering, Telecommunications, Computer Science or equivalent) plus ~10 years’ relevant experience.
* Strong background in network infrastructure: LAN/WAN, enterprise-level routing/switching, fiber/copper transmission, telephony, data/voice/video networks.
* Solid understanding of RF / radio / satellite / ground-radio communications, radio theory (including transistors, solid-state electronics, digital techniques), microwave, telemetry,…