Field IT/Systems Engineer

Transformational Security | Maryland / DC Metro Area

Clearance: Active Top Secret, SCI-eligible

Type: Full-time

Transformational Security is seeking a highly capable Field Systems Engineer with expertise in IT systems administration, networking, and cybersecurity supporting RF security systems. You will ensure deployed systems remain secure, patched, accredited, and fully mission-ready while serving as a trusted technical representative at customer sites. This position blends hands-on field work with IT operations, RMF/ATO support, RF system integration, and system diagnostics.

• Administer Windows-based systems, enforce configuration baselines, apply STIGs, and maintain cybersecurity compliance.
• Perform patch management, vulnerability scanning, remediation, and continuous monitoring activities.
• Troubleshoot OS, application, networking, and performance issues using system logs and diagnostic tools.
• Support RMF/ATO documentation including SSP updates, POA&M entries, evidence gathering, and control validation.
• Conduct preventive and corrective maintenance, field diagnostics, and system performance verification.
• Serve as the on-site technical expert and primary interface with customer personnel.

• Configure and troubleshoot network devices, VLANs, routing, firewall settings, and IP schemas.
• Perform network health assessments and maintain accurate network diagrams.
• Support RF-related infrastructure including antenna connections, coax routing, and verifying RF signal paths.
• Perform signal integrity checks and basic RF analysis during installation and troubleshooting.

• Install, integrate, and commission complete systems including servers, sensors, antennas, RF components, structured cabling, and supporting hardware.
• Perform hands-on mounting, cable routing, equipment replacement, and system validation to ensure proper configuration and functionality.
• Conduct RF performance checks using spectrum analyzers or similar tools to confirm operational readiness.
• Perform site surveys to assess environmental, RF, infrastructure, and installation requirements.
• Assist with on-site system upgrades, configuration changes, and new capability deployments.

• Active Top Secret clearance with SCI eligibility.
• Bachelor’s degree in IT, CS, EE, or related field; or equivalent experience.
• Proficiency with Microsoft Office (Word, Excel, PowerPoint, Project, Visio).
• Strong Windows system administration experience including GPO management, patching, and system hardening.
• Understanding of networking concepts (switching, routing, VLANs, firewalls).
• Familiarity with RMF/ATO processes, cybersecurity controls, and accreditation documentation.
• Experience with vulnerability management tools (ACAS, Nessus), STIG Viewer, WSUS, or SCCM.
• Ability to perform hands-on installation of equipment, cabling, servers, and field components.
• Ability to interpret technical drawings, wiring diagrams, and RF signal flow documentation.
• Ability to lift up to 30 lbs and work independently at customer sites.

• CompTIA Security+, Network+, CISSP, CCNA, or DoD 8140-equivalent certifications.
• Experience with Linux, PowerShell scripting, or configuration automation tools.
• Experience with RF, SIGINT, or electronic surveillance systems in operational environments.
• Knowledge of RF fundamentals such as gain, attenuation, noise floor, SNR, and frequency planning.
• Experience with RF test equipment including spectrum analyzers, VNAs, signal generators, and power meters.
• Experience documenting complex systems including IT infrastructure, RF chains, and system topologies.
• Strong communication and client interaction skills with ability to produce clear technical documentation.