Test Engineer – Mixed-Signal – Huntsville, AL

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Mercury Systems is seeking the best and brightest talent to help us bring cutting-edge technology to mission-critical aerospace and defense applications, advancing innovation where it matters most. Join our team as a Test Engineer II in our Mixed Signal business unit, where you’ll support comprehensive test strategies for sophisticated mission-critical embedded technology designed to withstand the most rugged environments. This role provides hands-on experience in digital hardware testing, ASIC/FPGA verification support, and environmental qualification testing for aerospace and defense applications. You will work under the guidance of senior engineers to execute test plans, develop test automation software, assist with test fixture design, and contribute to formal qualification documentation.

This is an excellent opportunity for an engineer early in their career who wants to develop deep expertise in both hardware testing and test software development while working on cutting-edge defense and aerospace systems.

Also see our job id #26-116 for a Principal Test Engineer for Huntsville for details.

Job Responsibilities:

• Execute Design Verification Test (DVT) procedures for complex digital circuits, modules, and systems including ASIC integration and FPGA verification under senior engineer supervision
• Assist in the design and assembly of test fixtures, cable harnesses, and test interface boards for digital subsystems
• Develop and maintain automated test scripts using Python and/or LabVIEW for instrument control, data acquisition, and automated reporting
• Support test firmware development for embedded targets including SPI/I2C/UART communication protocols
• Execute environmental and qualification testing per MIL-STD-810H (thermal, vibration, shock) and MIL-STD-461G (EMI/EMC) standards following established procedures
• Perform functional testing of digital interfaces including PCIe, Ethernet, DDR SDRAM, and power sequencing circuits
• Support burn-in testing, reliability testing campaigns, and data collection activities
• Document test results and assist with root cause analysis on test failures under senior engineer guidance
• Develop test procedures and contribute to formal test reports with requirements traceability
• Maintain test equipment calibration records and support configuration management of test assets
• Support production test handoff activities including documentation and knowledge transfer
• Interface with design engineering, program management, and manufacturing to support technical test activities

Required Qualifications:

• Bachelor’s degree in Electrical Engineering, Computer Engineering, or related field, or equivalent relevant experience
• Typically requires 2-4 years of related experience in electronics test engineering
• Hands-on experience testing digital electronics or embedded systems
• Programming experience in Python and/or LabVIEW for test automation and data analysis
• Familiarity with RF and digital test equipment: oscilloscopes, logic analyzers, spectrum analyzers, network analyzers, signal generators, power supplies, and environmental chambers
• Basic understanding of digital communication protocols (SPI, I2C, UART, Ethernet)
• Ability to follow detailed test procedures and document results accurately
• Strong problem-solving skills and attention to detail
• Good written and verbal communication skills
• Ability to obtain a DoD Secret clearance. US Citizenship is required.
• Travel approximately 10-15% to external test facilities

Preferred Qualifications:

• Master’s degree in Electrical Engineering
• Experience with AI-assisted development tools (Claude Code, Cursor, GitHub Copilot, or similar) for test automation development
• Experience testing FPGA-based systems or mixed-signal electronics
• Exposure to MIL-STD test standards (810, 461, or similar)
• Experience with test fixture design or PCB layout tools
• Familiarity with C/C++, MATLAB, or scripting languages
• Knowledge of high-speed digital interfaces (PCIe, DDR, high-speed serial)
• Experience with requirements management tools (JAMA, DOORS)
• Understanding of Design for Test (DFT) principles
• Previous experience in aerospace, defense, or ruggedized electronics industries
• Existing Secret clearance or higher

Location:

This position is on-site at Mercury Systems, Huntsville, AL

Enjoy every other Friday off with our 9/80 work schedule!

We are also hiring a Principal Test Engineer in Huntsville, AL. See job id # 26-116

Mercury Systems is a technology company that makes the world a safer, more secure place. We push processing power to the tactical edge, making the latest commercial technologies profoundly more accessible for today’s most challenging aerospace and defense missions. From silicon to system scale, Mercury enables customers to accelerate innovation and turn data into decision superiority. Headquartered in Andover, Massachusetts, Mercury employs more than 2,300 people in 24 locations worldwide. To learn more, visit mrcy.com

Our Culture

We are committed to making Mercury a great place to work, no matter where our employees are located. We offer a casual and enjoyable atmosphere that allows employees to learn and grow. We help and care for one another and work as one to achieve results for us and for our customers. We value communication and transparency, and strive to foster two-way dialogue at all levels of the organization. We are committed to lifelong learning, offering comprehensive skills training and tuition reimbursement. Whether you’re just starting out on your career journey or you are an experienced professional, it’s important to us that you feel recognized and rewarded for your contributions.

To find out more about Why Mercury?, or visit the Mercury Community or find answers to general questions at Mercury FAQs

Mercury Systems is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex (including pregnancy), sexual orientation, gender identity, national origin, genetic information, creed, citizenship, disability, protected veteran or marital status.

As an equal opportunity employer, Mercury Systems is committed to a diverse workforce. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Veterans’ Readjustment Act of 1974, and Title I of the Americans with Disabilities Act of 1990, applicants that require accommodation in the job Application process may contact the number below for assistance.

(978) 256-1300

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