CareerPlan

Senior System Engineer

TST Main Office (13865 Sunrise Valley Dr) - Herndon, VAFull-time$140k–$208k2026-10-27 → 2026-11-10
On-siteSecurity clearance required

Core

Engineering, administering, and maintaining classified and unclassified networks, servers, and workstations for a corporate security team.

Role type

Senior System Engineer (Classified Networks)

Builds

Classified and unclassified network infrastructure, server environments, and security access controls.

Domain

Defense/Security, Network Engineering, System Administration

Required skills

Classified network engineering, Windows server administration, Linux administration, Active Directory/Group Policy, User access control, Network troubleshooting, System backups, Firewall configuration, NAS setup, Government compliance (DCSA, NIST)

Preferred skills

Experience with JWICS, ServiceNow, Talon

Technologies

Windows 11, Active Directory, Group Policy, Red Hat Enterprise Linux (RHEL), VMWare vSphere, ESXi, Routers, Switches, Firewalls, NAS, ServiceNow, Talon

Responsibilities

Engineering and maintaining classified/unclassified networks, Installing and configuring Windows/Linux servers, Administering user accounts and access control, Troubleshooting technical issues, Performing system backups and data recovery, On-call support for outages

Seniority

Senior, hands-on IC