Test Engineer III
Mercury Systems • Torrance, CA • Posted June 29, 2026
About the Role
Req. Number
26-429
Job Description
Job Summary:
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.
Job Responsibilities:
+ 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), Qualifi...
26-429
Job Description
Job Summary:
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.
Job Responsibilities:
+ 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), Qualifi...