Test Technician III

Req. Number

26-545

Job Description

The Senior Test Technician (ESS) is responsible for performing environmental stress screening and testing to validate product performance under various conditions, ensuring compliance with MIL-STD-810 and customer specifications. This role involves operating environmental test equipment, maintaining detailed documentation, and supporting engineering teams to deliver reliable, high-quality products.

Job Responsibilities:

• Operate and maintain environmental test equipment, including thermal chambers, vibration tables, and centrifuges, ensuring proper calibration and reliability.

• Conduct environmental tests such as temperature cycling, thermal shock, burn-in, random/sine vibration (powered and unpowered), and constant acceleration according to MIL-STD-810 and customer specifications.

• Set up test fixtures and instrumentation per test procedures, monitor test progress, and intervene when anomalies are detected to ensure test integrity.

• Troubleshoot and resolve equipment or test setup issues, identifying and recommending equipment upgrades or replacements as needed.

• Record, analyze, and report test results with accuracy and completeness, maintaining detailed test logs and chain of custody documentation.

• Generate comprehensive test reports and present findings to engineering teams to support product validation and design improvements.

• Coordinate preventative maintenance and service calls, documenting equipment maintenance history and calibration records.

• Work from schematics, work instructions, drawings, and operating procedures while ensuring adherence to safety protocols and compliance with relevant standards.

• Collaborate with engineering teams to refine test procedures and participate in continuous improvement initiatives for test processes.

• Cross-train and mentor new employees and junior technicians, while communicating goals and priorities with management to maintain project deadlines.

Required Qualifications:

• Associate degree in electronics, engineering technology, or a related field; relevant technical certifications may substitute for degree with equivalent experience.

• Typically 2-5 years in environmental or laboratory testing with demonstrated knowledge of MIL-STD-810 and experience with data acquisition systems and test instrumentation.

• Proficiency in operating environmental test systems (thermal chambers, shakers, etc.), understanding of basic electronics, and ability to read technical drawings/schematics.

• Strong analytical abilities with attention to detail and competency with Microsoft Office Suite (Excel, Word, PowerPoint) for data analysis and reporting.

• Effective written and verbal communication skills with team-oriented approach and ability to collaborate across departments.

• Strong organizational and time management abilities with problem-solving mindset and ability to work under pressure to meet deadlines.

Preferred Qualifications:

• Bachelor's in electronics, engineering technology, or a related field.

• Previous experience in aerospace or defense industries.

• Experience with environmental chamber programming and automation.

Physical Demands:

• Ability to lift and carry up to 50 pounds regularly.

  This position requires you to access information that is subject to U.S. export regulations. You may only access such information if you are a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. government.

Why Mercury?

Why should you join Mercury Systems?

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.

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