Computer Network Architect in Springfield

Job Description

Seeking an experienced Senior Network Engineer specializing in network systems to support mission‑critical projects in a secure environment. The ideal candidate will have extensive experience in designing, implementing, and maintaining complex network infrastructures, and must hold an active TS/SCI clearance with Polygraph.

• Design, deploy, and optimize secure network architectures for enterprise and classified environments.
• Lead system performance tuning, troubleshooting, and disaster recovery planning.
• Ensure compliance with security standards and protocols (DISA STIGs, RMF).
• Collaborate with cross‑functional teams to deliver high‑availability solutions.
• Automate system administration tasks using scripting (Power Shell, Bash).
• Manage Active Directory, virtualization platforms (VMware, Hyper‑V), and network monitoring tools.

• Active TS/SCI clearance with Polygraph.
• Bachelor’s degree in information technology, Computer Science, or related field, or equivalent experience or specialist certifications considered in lieu of degree.
• 8+ years of experience in systems engineering with a focus on network systems.
• Expertise in Windows/Linux server administration, virtualization, and network security.
• Certifications such as CompTIA Security+, VMware, or equivalent.

• Experience supporting DoD or Intelligence Community environments.
• Strong background in system hardening, vulnerability remediation, and compliance.
• Excellent communication and technical documentation skills.

Original Posting:
April 20, 2026

Pay Range: $ - $

All qualified applicants will receive consideration for employment without regard to ethnic background, marital status, family structure, ancestry, gender identity, gender expression, sexual orientation, religious belief, citizenship, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.