Motion Systems Engineer - Advanced Materials

Stealth Startup; Austin (TX); On-site; USD 120,000 - 160,000; Full time

Job summary

Stealth Startup, based in Austin, seeks a Product Development Engineer to turn partially defined concepts into real, working systems. You will design mechanisms around novel material behavior, prototype, test, and integrate them into existing products.

Your work spans CAD, prototyping, testing, and complete assemblies while collaborating with leadership and technical partners. You will build polished demonstrators and establish lab workflows, BOMs, and repeatable test methods, enabling rapid

Qualifications

• Degree in Mechanical Engineering or related field.
• Approximately 5 years of hands‑on experience in mechanical design, prototyping, and integration.
• Strong fundamentals in mechanisms, tolerances, and materials behavior.
• Experience moving from concept to working assemblies with complete documentation.
• Solid CAD ability; SolidWorks preferred and familiarity with embedded components is a plus.
• Ability to work in a fast‑moving, early‑stage environment and document work clearly.

Responsibilities

• Design mechanisms that translate active-material behavior into controlled movement.
• Develop strain paths, load‑transfer structures, and compliant mechanisms.
• Convert concepts into CAD models, prototypes, and complete assemblies.
• Integrate motion systems into existing products to demonstrate real‑world applications.
• Combine mechanical systems with electronics, sensing, power, and basic embedded control.
• Build test rigs to characterize performance and reliability.
• Prototype, test, debug, and refine systems in short cycles.
• Identify and mitigate mechanical, thermal, optical, electrical, and material failure modes.

Skills

Mechanical engineering

Mechatronics

Robotics

CAD

Prototyping

Electronics integration

Education

Bachelor's degree in Mechanical Engineering

Tools

SolidWorks

3D printing

Embedded systems

Job description

Stealth Startup, based in Austin, seeks a Product Development Engineer to turn partially defined concepts into real, working systems. You will design mechanisms around novel material behavior, prototype, test, and integrate them into existing products.

Your work spans CAD, prototyping, testing, and complete assemblies while collaborating with leadership and technical partners. You will build polished demonstrators and establish lab workflows, BOMs, and repeatable test methods, enabling rapid