Manufacturing Test Engineer III

Mercury Systems•Oxnard, CA

About The Position

Mercury Systems is seeking a Manufacturing Test Engineer III to design and develop test procedures for manufacturing-floor test technicians. The role supports production through process improvements, debugging unhealthy Work-In-Progress (WIP), and Root Cause and Corrective Action (RCCA) initiatives. The engineer contributes to the efficiency, quality, and reliability of advanced electronics and RF products used in defense applications. The position develops test procedures for RF and electronic assemblies, supports manufacturing teams in improving processes and reducing cycle times, and leads troubleshooting of WIP issues. It also conducts RCCA investigations, assists with automated product testing, maintains technical documentation, and collaborates with engineering, operations, program management, and technical project teams. The role ensures compliance with applicable aerospace, defense, and high-reliability manufacturing standards.

Requirements

Bachelor’s degree in electrical engineering, manufacturing engineering, or a related technical field; equivalent years of hands-on experience may be considered in lieu of a degree.
Typically 3 or more years of experience in manufacturing test engineering, RF module testing, or related roles in high-reliability, aerospace, or defense electronics manufacturing.
Proficiency in RF/microwave, analog, digital, and mixed-signal circuit testing at the module and component level.
Experience with RF test equipment such as signal generators, network analyzers, and spectrum analyzers.
Demonstrated ability to design and implement test procedures for production environments.
Familiarity with process improvement methodologies and RCCA investigations, such as 5 Whys and 8D.
Experience with data analysis tools such as MATLAB and statistical process control (SPC).
Ability to obtain a DoD Secret Clearance.
Must be a U.S. citizen to obtain a government security clearance.

Nice To Haves

Master’s degree in Electrical Engineering or a related field.
Experience with automated test development and programming production processes, including ATP and ESS.
Familiarity with failure analysis methods such as X-ray, CSAM, SEM/EDS, and visual inspection.
Knowledge of high-reliability manufacturing standards, including MIL-PRF-38535, NASA workmanship standards, J-STD-001, IPC-A-610, or similar.
Proficiency in Product Lifecycle Management (PLM), Manufacturing Execution Systems (MES), and Quality Management Systems (QMS).

Responsibilities

Create and refine test procedures and methodologies for RF and electronic assemblies in alignment with production requirements and quality standards.
Collaborate with manufacturing teams to identify and implement process improvements, reduce cycle times, and enhance production efficiency.
Troubleshoot and resolve issues in unhealthy Work-In-Progress (WIP) to support on-time delivery and product quality.
Conduct Root Cause and Corrective Action (RCCA) investigations to address manufacturing defects and improve processes.
Assist in developing and implementing automated product testing solutions with cross-functional teams.
Create and maintain test documentation, including specifications, processes, and reports.
Collaborate with engineering, operations, program management, and technical project teams to integrate test solutions into production workflows.
Ensure adherence to aerospace, defense, and high-reliability manufacturing standards, including MIL-PRF-38534, MIL-STD-883, and other applicable requirements.