Teams at JT4

Administers enterprise Windows and Red Hat Linux systems across centralized and distributed environments. Manages VMware VxRail, ESXi, vCenter, vSAN, NAS/SAN storage, networking, backups, system upgrades, logs, and SQL-backed applications. Implements hardening, access control, patching, vulnerability management, and compliance procedures. Provides technical guidance, coordinates upgrades, supports mission-specific systems, and recommends infrastructure improvements. Requires U.S. citizenship and the ability to obtain and maintain a government security clearance.

The Network Engineer implements, maintains, troubleshoots, and optimizes enterprise network infrastructure supporting government test ranges. Responsibilities include configuring routing, switching, wireless, data center, firewall, VPN, VoIP, and network security technologies; investigating outages; monitoring performance; documenting designs; supporting testing, disaster recovery, and high availability; participating in change management and on-call rotations; and providing technical guidance to junior staff.

Entry-level programmer converts project specifications into code, prepares flowcharts, designs and writes basic-to-moderately complex programs, tests and debugs systems, documents development and user manuals, monitors program performance, and provides basic user support under supervision. Works on government test-range systems and must be eligible for security clearance.