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# Mission Systems Test Engineer with Security Clearance

- **Company:** SAALEX Corp.
- **Location:** Lexington Park, MD, United States
- **Experience:** Experienced
- **Salary:** $78,000.0 - $127,000.0
- **Contract:** Permanent contract
- **Skills:** Testing (Software), Microprocessors, Hardware Design, Satcom, System Testing, Systems Integration, SC Clearance, Information Technology
- **Published:** November 2, 2026
- **Apply:** https://www.adzuna.com/details/5747233910

## About the Role

* Other duties as assigned or required. Requirements Required: * 2+ years of experience in hardware/software testing for military/commercial avionics equipment.
 * Experience creating and executing software test procedures.
 * Prior experience with avionics and mission systems testing.
 * Proficiency in developing and implementing test procedures for analog, digital, microprocessor, power, and RF electronics.
 * Strong analytical, troubleshooting, and documentation skills.
 * Excellent communication and customer support abilities. Desired: * Experience with MUOS and other tactical communication links.
 * Experience with H-1 and other NAVAIR platforms.
 * Experience with avionics navigation and communication systems, including narrow band communications.
 * Familiarity with Mil-Std 1553 Bus, SATCOM DAMA/DASA, HF ALE radio, and related avionics systems.
 * Prior experience supporting flight testing, NATOPS conferences.
 * Experience with tactical narrowband communications.
 * Knowledge of COMSEC protocols and secure communications equipment. Education/Years of Experience: Bachelor's degree in Electrical Engineering, Avionics Systems Technology, Computer Systems, IT, or related field and 2+ years of experience required. Masters degree preferred. Security Clearance: Active Secret clearance required. Requirements to obtain a clearance include US Citizenship, security investigation, etc. Benefits * Employer Paid Health Care Plans for Employees & Family

## Description

Description Greenfield Engineering, a Saalex Company, is seeking a Mission Systems Test Engineer in Lexington Park, MD to support the H-1 Helicopter Avionics Test Facility and related military aviation programs. This role is responsible for the testing, integration, and evaluation of avionics, communications, mission systems, and COMSEC-enabled technologies that support aircraft modernization and operational readiness across multiple NAVAIR platforms. Position Type: Full-Time Salary: $78k-$127k annually (depending on experience) Work Location: Onsite Essential Functions: * Develop and execute test procedure for avionics, radio, and weapon system and H1 software/hardware upgrades.

 * Develop detailed system and subsystem test requirements from high-level operational and system specifications for software/hardware implementation of avionics and communications systems.
 * Perform hands-on testing and integration of navigation and communication systems/subsystems.
 * Utilize specialized test equipment, Bus Collection Computer, Satellite Simulators for systems integration and compliance testing.
 * Analyze system performance data, including timing metrics and operational compliance, to validate system functionality and safety.
 * Investigate and resolve incident reports and defects, determining root causes and implementing corrective actions.
 * Provide customer support for aircrew procedures trainers, flight testing, and cockpit upgrade programs.
 * Participate in technical conferences and qualification testing activities.