Mechanical Engineer

sunday· Hardware
Apply Now ↗
📍 Redwood City, CAFullTime

About this role

Join Us in Building the Future of Home Robotics

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.

What to Expect

We are looking for a Mechanical Engineer to help design, build, and scale the mechanical systems that power our robots and data collection devices. You will play a key role in turning prototypes into reliable, manufacturable products, working hands-on with early designs and suppliers to ensure quality and scalability.

This role is ideal for an engineer excited about working across the full product lifecycle — from whiteboard sketches and 3D CAD to testing, validation, and manufacturing handoff.

What You’ll Do

  • Support the design and development of mechanical components and assemblies for wearable and robotic devices

  • Rapidly prototype, test, and iterate on designs to improve performance and reliability

  • Contribute to DFM/DFA efforts to ensure designs can scale from low-volume prototypes to high-volume production

  • Work with vendors and suppliers on prototyping, tooling, and production readiness

  • Perform basic analyses (tolerance, structural, thermal) to validate design decisions

  • Assist in documentation for design reviews, testing, and production release

  • Collaborate with cross-functional teams (electrical, software, industrial design) to integrate mechanical systems

What You’ll Bring

  • 2+ years of mechanical engineering experience (this post includes all levels)

  • Strong skills in CAD (OnShape or SolidWorks preferred) and a familiarity with rapid prototyping techniques (3D printing, machining, etc.)

  • Understanding of DFM/DFA principles and interest in scaling prototypes to production

  • Experience working on consumer hardware, robotics, or compact devices is a plus

  • Hands-on problem-solving approach with ability to iterate quickly

  • Strong collaboration skills and comfort working in fast-paced startup environments

  • Bachelor’s degree in Mechanical Engineering or related field (Master’s a plus, but not required)

At Sunday Robotics, we’re building technology shaped by real people — curious, creative, and diverse. We’re proud to be an equal opportunity employer and consider all qualified applicants regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Even if you don’t meet every single requirement, we encourage you to apply. Studies show that women and underrepresented groups often hold back unless they meet 100% of the criteria — we don’t want that to be the reason we miss out on great talent.

Frequently Asked Questions

Is the salary disclosed for the Mechanical Engineer position at sunday?
The salary for this Mechanical Engineer role at sunday is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Mechanical Engineer position at sunday located?
This Mechanical Engineer role at sunday is based in Redwood City, CA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Mechanical Engineer role at sunday full-time or part-time?
This is listed as a FullTime position. It is posted as a Mechanical Engineer role in the Hardware department at sunday.
Which team or department does the Mechanical Engineer at sunday belong to?
This Mechanical Engineer position is part of the Hardware department at sunday. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Mechanical Engineer position at sunday?
Click the "Apply Now" button on this page. You will be redirected to sunday's official application portal hosted on ashby where you can submit your application directly.
When was the Mechanical Engineer job at sunday posted?
This Mechanical Engineer position at sunday was posted on Nov 13, 2025. Apply as soon as possible — early applications are often reviewed first.
Mechanical Engineer
sunday
Apply for this role ↗

You'll be redirected to sunday's official application page on Ashby ATS.