Jr Software Test Engineer Jobs in Kiln, MS (NOW HIRING)

Leidos is seeking Computer Engineers and Electrical Engineers for cutting‑edge engineering efforts within the Maritime System Solutions (MSS) Portfolio of our Undersea Systems Division (USD). This role is an opportunity to contribute to innovation in underwater vehicle systems, maritime sensors, subsea telemetry, and ISR solutions that support critical defense and national security missions.

You will work with a multidisciplinary team developing advanced maritime technologies, from prototype design to full‑scale system deployment for ongoing Navy missions.

• Contribute to technical innovation and product improvements aligned with customer needs and mission goals.
• Firmware & software development for microcontrollers and FPGAs.
• Circuit board level design of high reliability, high voltage (1kV or greater) DC/DC power systems.
• Circuit board level design of simultaneously sampled remote analog data acquisition equipment.
• Design of long‑distance fiber optic telemetry systems.
• Support system architecture, subsystem trade studies, and design decisions across hardware, firmware, software, mechanical, manufacturing, and test disciplines.
• Plan, execute, and document verification and validation activities, including engineering tests, qualification tests, acceptance tests, troubleshooting, and anomaly resolution.
• Create and maintain engineering documentation including specifications, interface control documents, schematics, test procedures, test reports, design analyses, build documentation, and lifecycle support artifacts.
• Support design reviews, production readiness reviews, failure investigations, corrective actions, and technical risk reduction activities.
• Work with manufacturing, quality, supply chain, and program teams to transition designs from prototype through production and field support.
• Contribute to configuration management, change control, design release, and product baseline maintenance for hardware, firmware, and documentation.

• Bachelor’s degree or Master’s degree in Electrical or Computer Engineering.
• At least 5 years of experience with subsea maritime systems or other integrated electro‑mechanical systems.
• Experience with requirements traceability, verification planning, and objective quality evidence (OQE) generation.
• Experience with design, prototype, production, and test of multi‑layer printed circuit board assemblies (PCBAs).
• Experience with FPGAs, MCUs, and Hardware Description Languages (VHDL, Verilog).
• Experience with Python, Bash, MATLAB, SPICE, C/C++.
• Functional literacy of Linux operating systems and ability to use basic command‑line tools.
• Ability to apply basic software engineering practices to firmware & software development.
• Ability to troubleshoot complex integrated systems across electronics, firmware, software, sensors, telemetry, power, and mechanical interfaces.
• Experience producing complete and accurate engineering documentation, including designs, procedures, analyses, and test results, suitable for design reviews, manufacturing, quality, program execution, and long‑term sustainment.
• Experience working independently and collaboratively towards defined objectives within a multidisciplinary geographically diverse team.
• U.S. Citizenship with the ability to obtain a SECRET clearance.

• Experience with Altium Designer.
• Experience with Xilinx Zynq FPGAs and Vivado IDE.
• Experience with cross‑platform compiling C/C++ for ARM systems.
• Experience with Microchip PIC32 & PIC24, STMicroelectronics STM32.
• Experience with UUVs, deployed subsea systems, and underwater payloads.
• Familiarity with ISO 9001:2015 and quality‑focused engineering processes.
• Exposure to DoD technical program execution.
• Familiarity with IPC‑A‑610 and J‑STD‑001.
• Willingness to travel up to 10 %.

Pay and benefits are fundamental to any career decision. Competitive compensation, health and wellness programs, income protection, paid leave, and retirement plans are among the benefits provided. For more details, please visit the company’s benefits portal.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.