Test Engineer III

United StatesUnited States·Torrance Ca Usa- - TorranceNormalmid
EngineeringQa Engineer
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Quick Summary

Key Responsibilities

Ensuring test systems comply with quality

Technical Tools
EngineeringQa Engineer

 

Mercury Systems is seeking a Test Engineer III to lead test efforts in our data processing and avionics systems for mission critical aerospace and defense applications. This role plays a pivotal part in ensuring product reliability, performance, and security across the full engineering lifecycle from concept to sustainment. 

 

Responsibilities

~2 min read
  • →Ensuring test systems comply with quality requirements, reliability, and regulatory compliance
  • →Work with cross-functional development teams to ensure that products are designed to facilitate testability including qualification, verification and validation requirements
  • →Develop, specify and/or procure test equipment that meets quality objectives, design margins and the needs of manufacturing
  • →Develop and write test documentation such as compliance matrices; Acceptance Test Procedures (ATP), Qualification Test Procedures (QTP), and Functional Test Procedures (FTP) using test standards such as MIL-STD-810G & H, MIL-STD-704A, and MIL-STD-461F & G
  • →Oversee and conduct functional, environmental, stress, and security testing of hardware and software systems, ensuring performance in extreme conditions and mission-critical environments.
  • →Work independently under minimal supervision and guidance to perform tasks of substantial complexity and conduct testing activities on site and at testing contract facilities
  • →Produce test reports, presentation, and CDRL’s for contractual deliverables
  • →Train/cross-train test and troubleshooting techniques with Production test team
  • →Troubleshoot systems and circuit card assemblies using relevant electrical, mechanical, and analytical tools to identify root cause and resolve technical issues.
  • →Lead the troubleshooting activities, Investigate the cause of the failures and fix the defect at top level assembly, sub-level assembly, PCBA board level, components, and or test equipment
  • →Collaborate with Mission Assurance teams to conduct root cause analyses for issues identified during testing and sustainment.

Requirements

~2 min read
  • Typically requires a bachelor’s degree in electrical engineering, computer science, manufacturing engineering or equivalent experience
  • Typically requires 4+ years of experience testing electrical hardware or other military based systems
  • Experience with mixed-signal Printed Circuit Board Assembly (PCBA) and system validation test development 
  • Experience in developing and executing verification and validation test procedures.
  • Experience testing ruggedized servers for harsh environments (e.g., extreme temperatures, shock, vibration).
  • Ability to read and understand circuit and wiring diagrams, technical specifications and electronics test procedures
  • Good understanding of manufacturing processes with the ability to work on multiple projects in a highly demanding environment
  • Experience understanding system and subsystem requirements & specification generation processes
  • Knowledge of a wide variety of electronics test and analyzing equipment including oscilloscopes, analyzers, power supplies, meters and any other special electronics test equipment necessary for testing, analyzing and/or troubleshooting/repairing
  • Experience understanding engineering principles and demonstrated application of those concepts with a focus on safety and regulatory compliance.
  • Experience in LabVIEW, Python, Bash, C#,C++, MATLAB, or other programming languages used for data collection and analysis.
  • This role is 100% on-site and based in Torrance, CA.

 

  • Active U.S. Secret Clearance.
  • Experience with military standards such as MIL-STD-810, MIL-STD-461, and MIL-STD-1275.
  • Experience with Aerospace, Defense, Government, or Military sectors.
  • Skilled in documentation and collaboration platforms, including Confluence and SharePoint.
  • Experience with engineering lifecycle tools such as Jama, Jira, BitBucket.
  • Demonstrated leadership experience with the ability to guide Integrated Product Teams (IPTs) through ambiguity and tight deadlines.
  • Experience supporting both military and commercial programs.
  • Working knowledge of military and aerospace standards including MIL-STD-810, MIL-STD-461, DO-178C, and DO-254.
  • Hands on experience with environmental test equipment, including chambers used for hardware validation.

#LI-RL1

 

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

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.

Click here read about our recent press release.

Location & Eligibility

Where is the job
Torrance Ca Usa- - Torrance, United States
On-site at the office
Who can apply
Open to applicants worldwide

Listing Details

Posted
June 22, 2026
First seen
September 25, 2026
Last seen
September 25, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
14%
Scored at
September 25, 2026

Signal breakdown

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mercurysystemscareersTest Engineer III