Mechanical Design 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. We invite you to explore our website at for more information about our company and our products.Testek Solutions is currently seeking a Mechanical Design Engineer.About the Role

We are seeking a Mechanical Design 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 an 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.

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)