Senior Mechanical Design Engineer

Senior Mechanical Aerospace Test Equipment Systems Engineer

Established in 1969, Testek is the leader in Aerospace and Aircraft Component Test Equipment. Testek is a small company with approximately 160 team members, with the headquarters located in Wixom, Michigan. We pride ourselves in a family-like work environment that includes a diverse team of talented and enthusiastic people. Testek designs, manufactures, supports and services diversified products including custom test equipment/products and standard test equipment/products. Our wide-ranging capability includes simple manual to complex automatic machinery. Testek offers innovative and competitive solutions to various sectors including aerospace, aircraft, and industrial.

Testek Solutions is currently seeking a Senior Mechanical Aerospace Test Equipment Systems Engineer.

About the Role

We are seeking a Senior Mechanical Systems Engineer to lead the design and development of multi-functional F.H.L.A.P. (Fuel, Hydraulic, Lubrication, Actuation, and Pneumatic) test equipment. This role is ideal for a seasoned engineer who enjoys guiding projects from concept through production and who thrives in a hands-on, cross-functional environment. This position is an onsite position, with some opportunity for a hybrid schedule.

You'll play a key role in supporting assembly, start-up, and commissioning efforts while contributing to the advancement of aviation testing technology.

What You'll Work On

Our FLAP group delivers test solutions for a wide array of aircraft components, including:

• Fuel systems: pumps, boost pumps, hydromechanical units (HMU), fuel metering units (FMU), valves, nozzles, servos
• Lubrication systems: valves, heat exchangers, oil pumps, hydraulic clutches, coolers, tanks
• Actuation systems: electro-mechanical linear and rotary actuators, power drive units (PDU), cargo winches
• Pneumatic systems: valves, air turbine starters, heat exchangers, air cycle machines, environmental control systems

Key Responsibilities

• Interpret customer specifications and maintenance manuals to define equipment requirements
• Create 3D CAD models and layout drawings using SolidWorks
• Design mechanical components, including enclosures, fixtures, manifolds, and piping systems
• Perform engineering calculations to ensure safety and functionality
• Select and source components, collaborating with suppliers for customization
• Optimize packaging of hydraulic and electrical modules
• Generate detailed fabrication and assembly drawings with GD&T
• Manage BOMs and release documentation
• Support assembly and troubleshooting during build phases
• Lead customer design reviews and provide mechanical expertise
• Collaborate with electrical, hydraulic/pneumatic, and software engineers
• Assist in technical manual development
• Plan and prioritize tasks to meet project goals
• Participate in equipment startup and checkout at factory and customer sites
• Travel up to 10% (domestic and international)

Preferred Qualifications

• Bachelor's degree in Mechanical Engineering or related field
• 8+ years of relevant experience in custom equipment or systems design
• Experience in mid-sized companies (150–300 employees)
• SolidWorks Professional certification (preferred)
• Background in fixture, tooling, and automation design
• Strong understanding of hydraulic/pneumatic systems and schematics
• Basic knowledge of electrical engineering and PLC programming
• Must be a U.S. citizen or U.S. green card holder

Are you ready to engineer the future of aerospace testing? If you're a forward-thinking mechanical engineer looking for a dynamic and rewarding challenge, we encourage you to apply and become part of our mission to shape the future of aviation technology.

Learn more about us at

EOE – Equal Opportunity Employer. People of color, women, veterans, and individuals with disabilities are encouraged to apply. (Compliant with the new VEVRAA and Section 503 rules)