Sr Principal Network Engineer
Listed on 2026-06-18
-
Engineering
Systems Engineer, Cybersecurity
Job#: 3034514
Job Description:
Sr Principal Network Engineer
Location: Aurora, Colorado (Onsite)
Employment Type: Contract
Candidates must have an active Department of Defense TS/SCI with an adjudicated full-scope polygraph clearance as a condition and continuation of employment.
Role OverviewSeeking a Senior Principal Network Engineer in Aurora, CO. In this role, the successful candidate will design and plan network communication systems and provide specifications and detailed schematics for network architecture. The candidate must be able to troubleshoot and isolate network faults and failures in a LAN/WAN environment and provide specific detailed information for hardware and software selections, implementation techniques, and tools for the most efficient solution to meet business needs, including present and future capacity requirements.
Key Responsibilities- Design and plan network communication systems.
- Provide specifications and detailed schematics for network architecture.
- Troubleshoot and isolate network faults and failures in a LAN/WAN environment.
- Provide detailed information for hardware and software selections.
- Maintain technical expertise in all areas of network and software interconnections and interfacing, such as routers, switches, firewalls, and load balancers.
- Evaluate and report on new communication technologies to enhance network capabilities.
- Work within a group or independently where collaboration and attention to detail is critical.
- Bachelor's degree in a STEM field with 8+ years of relevant experience, a Master's degree with 6+ years, or a PhD with 4+ years. 12+ years of experience may be considered in lieu of a degree.
- Security+ certification is required.
- Ability to travel a minimum of 20%.
- Subject Matter Expert in Wide Area Networks.
- Experience with designing additions to a large network.
- Firewall hardware and software knowledge, including administration, management, and modifications.
- CISCO Router and Switches hardware and software knowledge.
- COMSEC equipment knowledge.
- Linux and Windows knowledge.
The pay range for this position is $75.00/hr - $140.00/hr apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an employee stock purchase program (ESPP) and a 401(k) program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure.
Apex also offers a health savings account (HSA) and a Support Linc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program, and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars after 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA.
Apex has a dedicated customer service team for our consultants that can address questions around benefits and other resources, as well as a certified career coach.
Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law.
Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).