Level 3 Mechanical Engineer – UAS Launch System Design

Job Description 

Level 3 Mechanical Engineer – UAS Launch System Design

• Location: Fort Worth, Texas • Classification: Full-time, Exempt • Seniority: Level 3 Mechanical Engineer • Reports To: Chief Engineer 

Purple Rhombus | Fort Worth, TX

Build It. Refine It. Put It Into Production.

At Purple Rhombus, we're building unmanned aircraft systems designed for mass production and real-world missions. We're looking for a hands-on Mechanical Engineer to take our prototype UAS launch system from a working concept to a reliable, production-ready product.

This isn't a role spent exclusively behind a CAD workstation. You'll work directly with hardware, solve real engineering challenges, and help bring a new product into production.

What You'll Do

• Own the transition from prototype to production, improving reliability, manufacturability, and serviceability.

• Design and release mechanical components, CAD models, drawings, and BOMs.

• Simplify designs to reduce cost, part count, and assembly time.

• Develop production tooling, fixtures, and assembly processes.

• Integrate motors, drive systems, bearings, cooling systems, and other electromechanical components.

• Work directly with technicians, suppliers, and engineers to build, test, and troubleshoot hardware.

• Support testing, design improvements, and production readiness.

What We're Looking For

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related field.

• 3+ years of mechanical design, product development, or manufacturing experience.

• Strong 3D CAD, technical drawing, and GD&T skills.

• Practical knowledge of machining, welding, sheet metal, and mechanical assemblies.

• Experience building, testing, and troubleshooting physical hardware.

• An engineer who enjoys getting their hands dirty and solving problems.

Bonus Points

• Experience taking prototypes into production.

• Experience with powered machinery, electromechanical systems, or aerospace ground equipment.

• Familiarity with FEA, vibration, fatigue, or structural analysis.

• Experience working with machine shops, suppliers, and production teams.

Why Purple Rhombus?

You'll have a direct impact on hardware that matters, working with a small, fast-moving engineering team focused on delivering capable, affordable unmanned aircraft systems at scale.

If you enjoy designing things, building them, breaking them, and making them better, we want to hear from you.

Annual salary range: $115,000-$140,000 + equityTravel: 15% per year. 

• Benefits: • 401(k) • 401(k) matching • Dental insurance • Health insurance • Paid time off • Vision insurance 

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