Mechanical Test Engineer

Stress Engineering Services • Mason, OH

15h

About The Position

Stress Engineering Services, Inc. (SES) is hiring a Mechanical Test Engineer to plan and execute custom tests in a dynamic, industrial laboratory environment. The role combines mechanical engineering fundamentals with hands-on testing and system operation. The engineer will develop test plans, fixtures, and methods; instrument hardware; collect and analyze data; and turn results into clear, actionable insights. Projects may involve medical devices, consumer products, primary and tertiary packaging, mechanical and electrical systems, industrial processes, and engineering materials.

The successful candidate is an adaptable, hands-on problem solver who can work independently and collaboratively, operate electro-mechanical systems and instrumentation, navigate a heavy industrial lab setting safely, and manage competing priorities. The role requires clear communication with colleagues and clients, including writing test methods and reports and explaining technical information. Depending on experience, the engineer may manage projects, interface directly with clients, and guide other engineers and technicians. SES is an employee-owned firm that describes its culture as supportive, entrepreneurial, collaborative, inclusive, and technically challenging.

Requirements

• Bachelor of Science in Mechanical Engineering.
• 3–5 years of experience in testing or manufacturing/industrial equipment operations.
• Experience with mechanical testing methods and instrumentation.
• Hands-on aptitude and comfort working with physical systems.
• Experience with data acquisition and test control systems.
• Ability to conceptualize and develop test methods, fixtures, and equipment with attention to accuracy and repeatability.
• Strong technical writing and communication skills in English.
• Motivation, self-direction, critical thinking, and problem-solving ability.
• Ability to work safely in a heavy industrial laboratory setting and manage competing priorities.
• Legal authorization to work in the United States and ability to provide documentation for I-9 employment eligibility verification.
• For work involving export-controlled information, eligibility to access it under U.S. Government regulations, including qualifying status or ability to obtain required authorization.

Nice To Haves

• Familiarity with statistical techniques for reliability, capability analysis, regression, ANOVA, and sample size justification.
• Experience with CAD software such as SolidWorks or similar.
• Professional Engineer license or willingness to obtain one.
• Master of Science in Engineering or more than five years of relevant experience.
• Knowledge of material properties and failure mechanisms for metals and polymers under mechanical, thermal, and environmental loading.
• Experience developing test plans and reports suitable for verification and regulatory submissions.
• Experience validating test methods for repeatability and reproducibility.
• Familiarity with hazard and risk assessment tools such as FMEA or fault tree analysis.
• Experience with U.S. and EU medical device regulations.
• Experience or familiarity with finite element analysis.
• Experience in regulated industries such as medical device, pharmaceutical, or aerospace.

Responsibilities

• Develop custom and specialized test plans, fixtures, and test methods.
• Execute tests safely and efficiently while monitoring live data.
• Collect, analyze, and document high-quality test data.
• Interpret results and produce clear, concise technical reports.
• Instrument hardware and coordinate with technicians during testing.
• Manage safety, schedule, performance, and risk while tests are underway.
• Depending on experience, manage projects, interface directly with clients, and guide the work of other engineers and technicians.

Benefits

• Medical, dental, and vision coverage.
• Paid time off and paid holidays.
• Competitive compensation aligned with experience and market benchmarks.
• Employee ownership.
• Autonomy and high-impact technical work.
• Collaboration with recognized subject matter experts.
• Supportive, entrepreneurial, inclusive, and technically challenging work environment.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level