Senior Mechanical Design Engineer

About Mashgin

Mashgin powers the world's best checkout experience for over 40 million users. Customers just place their items on our kiosks and our AI rings up their entire order in less than a second. With Mashgin, lines are now optional. Mashgin's technology powers over 1 billion transactions at your favorite locations, including over half of all US professional sports teams, 4,000 convenience stores, major airports, universities, and more.

We’re not just building cutting-edge AI—we’re creating real-world impact and unforgettable experiences. Backed by a well‑funded Series B, we’re also one of the rare AI startups that’s already profitable. Our secret? A culture of extreme ownership, autonomy, and customer obsession. At Mashgin, we are building something extraordinary by challenging conventional wisdom. We’ve thrown out the old rules to focus on what truly matters: creating a kickass product that makes people say, Wow.

We don’t care about short‑term wins; we build systems that stand the test of time. If you thrive in a culture of excellence without compromise and want to see your work have an immediate, remarkable impact, you’re in the right place.

Mashgin is seeking a Senior Mechanical Product Design Engineer to join our hardware engineering team. You’ll play a key role in developing the next generation of Mashgin kiosks, working from concept to mass production in a fast‑paced, cross‑functional environment. This is a hybrid role that requires you to be onsite at least 2 days a week in San Jose, CA.

• Impact:
  You will own significant responsibility and have total ownership over your work. We stay lean and efficient, so your work directly impacts the product we ship every day.
• Simplicity:
  Complexity is a waste of time here—we take pride in building things that just work.
• Hard Work:
  Forget the glamorous research papers. We prioritize the hard work it takes to achieve real‑world clarity and accuracy. You will innovate relentlessly to push the boundaries of what’s possible in visual automation.
• Humility:
  No task is beneath you. Whether it's high‑level architecture or grunt work to fix a bug, we check our egos at the door and get real work done.
• Ruthless Prioritization:
  If everything is on fire, nothing is. You will be expected to prioritize ruthlessly, cutting through distractions to focus on the most impactful product improvements.
• Customer Innovation:
  We are customer‑centric, not customer‑pleasing. You won’t bend to every client demand; you will let innovation drive the product forward to solve the real problems our users face.
• Efficiency:
  Meetings suck. We keep them short and only use them for alignment, giving you your time back to focus on real work.

• Owning the mechanical design of major kiosk subsystems and components from concept to production.
• Developing innovative, manufacturable designs for sheet metal, injection‑molded plastics, CNC‑machined parts, and electromechanical assemblies.
• Creating and managing BOMs (Bill of Materials), engineering documentation, and 2D manufacturing drawings with proper GD&T and revision control.
• Collaborating closely with electrical, thermal, and software engineering teams to integrate multi‑disciplinary requirements.
• Building and iterating on 3D CAD models, tolerance analyses, and detailed drawings using Solid Works.
• Driving prototype builds, DFM/DFX reviews, and design validation testing with internal teams and external suppliers.
• Working directly with domestic and international manufacturing partners to resolve production issues and improve yields.
• Contributing to reliability, thermal, EMI/ESD compliance, and safety testing for high‑volume deployments.
• Supporting product lifecycle activities, including cost reduction, design revisions, and next‑gen architecture exploration.
• Traveling internationally on occasion (~10%) to support suppliers, manufacturing builds, and validation testing.

• BS or MS in Mechanical Engineering or related field.
• 5+ years of relevant mechanical design experience, preferably in consumer electronics, kiosks, medical devices, or other high‑volume hardware products.
• Proficiency in Solid…