Prototype Engineer III

Job Title: Prototype Engineer

Contract Duration: 12 months

Location: Redmond, WA

Work Arrangement: Onsite

We are seeking a talented and motivated Prototype Engineer to join our dynamic team. The successful candidate will be responsible for designing, building, and validating mechanical/electrical systems for innovative physicochemical processes that are core to delivering transformative optical materials for AR/VR applications. The ideal candidate will be a hands‑on problem solver with a strong background in both mechanical and electrical engineering principles, who thrives in a collaborative, fast‑paced environment.

• Design, build, and validate mechanical and fluidic systems based on the research teams needs using a combination of off‑the‑shelf and custom components.
• Design, build, and fine‑tune electrical systems that provide accurate thermal control using off‑the‑shelf parts and PID controllers.
• Develop simple graphical user interfaces for our lab personnel to interact with the mechanical and electrical systems, allowing adjustments in fluidic control, mechanical movements, and temperature control.
• Collaborate closely with researchers and continuously iterate and refine the aforementioned designs based on the research teams feedback.
• Prepare and update detailed Bills of Materials (BOM) for each system and support budgeting and cost optimization. Maintain thorough documentation of all engineering designs and technical specifications that are ready for sharing with internal teams and external partners.
• Ensure compliance with laboratory safety and regulatory requirements.

• Bachelors degree in Mechanical Engineering, Electrical Engineering, Computer Engineering, Mechatronics, or a related field.
• 2+ years of experience in mechanical and/or electrical engineering roles.
• Proficiency with CAD software (e.g., Solid Works, AutoCAD, NX).
• Knowledge of prototyping techniques, including 3D printing, conventional machining (milling, turning, CNC), and other fabrication methods such as laser cutting and water jet cutting.
• Experience in heaters, thermometers, thermocouples, thermal-electric cooling, circulators, hot/cold plates, and thermal materials (insulators, thermal interface materials).
• Experience in developing simple graphical user interfaces using python, LabVIEW, or equivalent programming tools.
• Experience in prototyping, testing, and troubleshooting hardware systems.
• Excellent problem‑solving, communication, and teamwork skills.

• Experience in working with organic materials, solutions, and chemical reactors.
• Experience in developing fluidic systems that meets stirring, pumping, filtering, and chemical compatibility requirements.
• Strong understanding of heat transfer is preferred.

• Engineering Prototyping Expertise
  • Bachelor’s degree in Mechanical, Electrical, Computer Engineering, Mechatronics, or related field.
  • 2+ years of hands‑on experience in mechanical and/or electrical engineering roles.
• Mechanical Design & Fabrication Skills
  • Proficiency with CAD software (Solid Works, NX).
  • Knowledge of prototyping techniques: 3D printing, machining (milling, turning, CNC), laser cutting, water jet cutting.
  • Specifying and sourcing off the shelf electrical components such as heaters, switchers, PCBs.
• UI Prototyping
  • Experience with coding Python (or similar) to create a simple Gui for prototyping demos.

• Experience in working with organic materials, solutions, and chemical reactors.
• Experience in developing fluidic systems that meets stirring, pumping, filtering, and chemical compatibility requirements.
• Strong understanding of heat transfer is preferred.