Senior Mechanical Engineer

Sunday • Mountain View, CA

1d

About The Position

At Sunday, we're developing personal robots to reclaim the hours lost to repetitive tasks. We're focused on an ambitious goal to make generalized robots broadly accessible, enabling households to take back quality time. We have spent the last 18 months building a talented team, securing capital, and validating our technology. We are now seeking passionate individuals to join us in the next phase of our growth. If you are ready to apply your skills to the forefront of robotics innovation, we’d love to hear from you. We are looking for a Senior Mechanical Engineer to lead the design, development, and manufacturing of core mechanical systems for our next-generation robots and data collection systems. In this role, you will design reliable, manufacturable, and scalable hardware. You’ll collaborate closely with electrical, software, and industrial design teams to ensure seamless integration of mechanical systems into our overall product. This role provides the opportunity to shape the hardware foundation of our products while working in a fast-paced, hands-on environment.

Requirements

• 5+ years of experience in mechanical engineering with a track record of shipping consumer products at scale
• Expertise in CAD (OnShape or Solidworks preferred), DFM/DFA practices, and mechanical simulation tools (e.g., ANSYS)
• Proven ability to take designs from prototype through mass production
• Hands-on problem-solving and rapid prototyping skills
• Strong collaboration skills and experience working with electrical, software, and industrial design teams
• Degree in Mechanical Engineering or related field

Nice To Haves

• Experience with wearable devices, robotics, or compact consumer hardware (e.g., watches, AR/VR devices, smart glasses)
• Familiarity with advanced materials, precision mechanisms, or miniaturized assemblies
• Master’s or PhD preferred

Responsibilities

• Lead mechanical design for wearable and robotic devices from concept through production
• Develop designs with a strong focus on DFM/DFA to ensure high-volume manufacturability
• Work closely with suppliers on prototyping, tooling, and mass production processes
• Conduct simulations and analysis (e.g., structural, thermal, tolerance stack-ups) to validate designs
• Rapidly iterate based on test results and hands-on validation
• Collaborate with cross-functional teams to integrate mechanical systems with electronics, software, and industrial design
• Own documentation for design reviews, testing, and production release
• Drive reliability improvements through material selection, precision mechanics, and robust testing protocols

What This Job Offers

• Job Type: Full-time
• Career Level: Senior