Senior Network Administrator & Security Architect

S2i2, Inc; Fort Meade (MD); On-site; USD 120,000 - 170,000; Full time

Job summary

S2i2, Inc is seeking a seasoned Network Engineer at Fort Meade, MD. The role focuses on configuring and optimizing Cisco, Juniper, and Dell network assets, enforcing cybersecurity controls, and maintaining thorough system documentation.

The ideal candidate will hold an active DoD Top Secret clearance ( SCI preferred), CCNA/CCNP, and DoD 8140 certs, with 8+ years of related experience and strong Linux/Windows skills for cross-platform management.

Qualifications

• Bachelor's degree in a technical discipline; 8+ years of related experience (degree may be substituted)
• Active DoD Top Secret clearance with ability to obtain DoD Top Secret/SCI
• At least 3 years of Linux and/or Windows familiarity
• Current CCNA/CCNP or equivalent
• Current DoD 8140 certification (CEH, Security+, SecX, CCNA/CCNP Security or other 8140 certs)

Responsibilities

• Independently configures and optimizes network assets (switches, load balancers, routers, firewalls) for reliability and security
• Performs proactive maintenance, advanced troubleshooting, and updates with robust security across Cisco, Juniper, and Dell devices
• Maintains comprehensive system documentation and ensures change management is executed efficiently
• Completes detailed checklists and manages devices to meet cybersecurity controls
• Contributes to global network architecture upgrade projects with timelines, resource estimates, and action plans
• Implements recurring security requirements on all network devices for ongoing protection
• Collaborates with external partners to coordinate troubleshooting and expedite resolutions
• Applies Linux and Windows system administration skills to optimize assets
• Provides architectural and topology recommendations to improve network performance

Skills

Network configuration

Security hardening

Troubleshooting

Documentation

Linux

Windows

System architecture

Education

Bachelor's degree in a technical discipline

Tools

Cisco

Juniper

Dell

Job description

S2i2, Inc is seeking a seasoned Network Engineer at Fort Meade, MD. The role focuses on configuring and optimizing Cisco, Juniper, and Dell network assets, enforcing cybersecurity controls, and maintaining thorough system documentation.

The ideal candidate will hold an active DoD Top Secret clearance ( SCI preferred), CCNA/CCNP, and DoD 8140 certs, with 8+ years of related experience and strong Linux/Windows skills for cross-platform management.