Network Engineer/Architect

Who we are.

Platinum Technologies is a Northern Virginia based integrated solutions firm that specializes in Cybersecurity, Cloud and Digital Services to the Public Sector. Our team solves hard problems and helps our Mission Partners achieve their goals. If you are self-motivated, possess demonstrated learning agility, and are passionate about delivering high-quality work products – we want to hear from you.

We lead with technical expertise, but that is just the tip of the iceberg – the ‘Why’ matters. At Platinum, we don’t hire people to do a job. We provide professional and leadership development to complement our self-motivated domain experts. Our teammates are dot-connecting leaders that operate in a mutually accountable environment to deliver thought leadership, expert technical analysis, and quality execution for our clients.

Platinum Technologies is seeking a Sr. Network Engineer/Architect with subject matter expertise to support medium to large scale operations supporting the Department of War.

The Network Engineer/Architect SME supports operation and maintenance of current and modernized capabilities for the customer. This role will be responsible for technical requirement definition, implementations plans, as well as diagnosing and troubleshooting outages, monitoring networks, infrastructure and systems, and proving proactive mitigation strategies.

This position is on-site at Fort Belvoir, VA with the possibility of limited remote work.

*An active TS/SCI and DoD IAT Level II (Security+) is required.

What you get to do.

•Execute Tier 2 & 3 network operations ensuring stability and DoD security compliance.

•Monitor enterprise networks (SolarWinds, Cisco ISE, vendor GUIs).

•Develop and enforce operational procedures and escalation workflows.

•Serve as senior technical lead during outages, network events, and cyber incidents.

•Design and implement secure, consolidated network solutions.

•Identify and migrate legacy network paths; plan and document enterprise service transitions.

•Support DoD Configuration Management, CAB procedures, and STIG compliance.

•Develop network optimization and capacity strategies.

•Provide leadership and mentoring for junior engineers.

What you’ll bring.

•Active TS/SCI and DoD IAT Level II (Security+)

•Active CCNA certification

•Bachelor’s in STEM + 10–12 years’ experience (or equivalent experience)

•Strong background in LAN/WAN, IPv4/IPv6, VPN, IPSec, Firewalls, SD-WAN (Dell Versa preferred)

•Experience with Cisco, Juniper, F5, Aruba, Palo Alto, Dell, Brocade

•Proficient with Cisco ISE, AAA, and endpoint posturing

•Skilled in BGP, OSPF, EVPN, and enterprise network design

•Hands-on experience with SolarWinds, Cisco Catalyst Center, Ansible

•Excellent communication and documentation skills

•Experience in system hardening and DoD STIG implementation

Preferred Qualifications.

•STEM Bachelor’s degree with minimum 10-12 years of applicable Network Engineer experience. (Additional years of experience accepted in lieu of degree)

•CCIE-level knowledge base.

•Experience with DataCenter Cisco Nexus VXLAN.

•Experience working with automation tools, such as Ansible and Python scripting to build an Infrastructure as Code framework.

The Company is an Equal Opportunity/Affirmative Action employer. All qualified candidates will receive consideration for employment without regard to disability, protected veteran status, race, color, religious creed, national origin, citizenship, marital status, sex, sexual orientation/gender identity, age, or genetic information.

$145,000 - $155,000 a year

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.