Manufacturing / Mechanical Engineering

Atoms is building the machines that power the next era of progress.
Over the last decade, software has transformed the digital world. But the physical world, where food is made, minerals are mined, goods are moved, and industries are run, remains far less intelligent, far less efficient, and far more constrained. Atoms builds Physical AI- real-world robots for the industries that move civilization forward, starting with food, mining, and transport. Our systems are designed to understand, predict, and control the real world with precision, turning complex physical operations into something more reliable, more scalable, and more productive.
This work requires more than robotics. It requires deep integration across hardware, software, AI, operations, manufacturing, and real estate. We don't just build machines in a lab. We believe the next great technology companies will not only transform information, but the physical systems that shape everyday life.
We are seeking a Senior Mechanical Engineer to help design the physical architecture of our next-generation autonomous transport platforms. In this role, you will bridge the gap between industrial design and vehicle production, transforming complex prototypes into scalable realities. You will own the mechanical packaging of safety-critical systems, including structural sensor mounts, ruggedized compute housings, and drive-by-wire integrations. By developing robust engineering documentation and validation procedures, you will ensure our fleet operates safely and reliably in urban environments.

Design, package, and integrate advanced autonomous vehicle sensor suites and ruggedized compute housings onto on-road passenger vehicle platforms.
Design the electromechanical packaging of drive-by-wire (DBW) actuation systems, custom PCB enclosures, and low-voltage routing.
Ensure all PCB enclosures meet thermal performance requirements.
Prototype to Production Scaling: Transform early-stage prototype hardware components into refined, scalable designs optimized for high-volume manufacturing assembly.
Partner directly with industrial designers, in-house manufacturing technicians, external vendors, and manufacturing engineering to execute rapid prototype part runs.
Engineering Documentation: Create and maintain highly disciplined engineering documentation, including complex CAD models, production-ready drawings, Bills of Materials (BOMs), and clear installation manuals.
Fabricate and iterate physical mockups using a diverse suite of rapid prototyping methods, ensuring designs are optimized for CNC machining, sheet metal fabrication, and 3D printing.
Establish and run rigorous physical testing and validation protocols for electromechanical systems to guarantee environmental durability, shock absorption, and long-term reliability.
Bachelor's degree in Mechanical Engineering, Mechatronics, or a closely related field is required.
Minimum 2+ years of non-internship professional Mechanical Design Engineering experience.
Proficient hands-on design experience utilizing 3D CAD modeling software such as SolidWorks, Catia or NX.
Proven background building, assembling, and troubleshooting complex mechanical, electrical, or structural assemblies.
Strong knowledge of manufacturing processes, with direct experience designing for CNC machining, sheet metal stamping, and injection molding.
Prior experience or deep familiarity with the structural integration of hardware onto automotive platforms, mobile robotics, or heavy mechatronic equipment.
Demonstrated ability to create accurate, production-level engineering drawings and meticulous component documentation using GD&T where applicable
We exist to uncover valuable unknown truths and turn them into progress, which means constantly pushing beyond what's known and building what doesn't yet exist. This role is based in our San Francisco office. Atoms is a company driven by invention and continuous change - we are constantly reimagining our industries, building new products, and refining how we operate. That's why all of our office-based teams work onsite, five days a week.
You may also be eligible for equity awards.
Benefits Summary (USA Full-Time Exempt Employees):

• Medical, Dental, Vision, Disability, and Life Insurance
• Flexible Spending Account / Health Savings Account Options
• Equity
• Sick Time, Unlimited Flexible Time Off, and Paid Holidays
• Pre-Tax Commuter Benefit Plan
• Team lunch in our SoMa office every Tuesday and Thursday

Atoms accepts applications on an ongoing basis.