Mechanical Engineer II​/III

Join the Future of Robotic Biomanufacturing!

Multiply Labs is a robotics company on a mission to solve a significant bottleneck in modern medicine:
the manufacturing of life‑saving advanced biologics, from gene and cell therapies to antibodies and more.

Today, these therapies are produced through manual, labor‑intensive processes. Costs are extremely high—often $500K–$2M per patient—limiting access to only a small fraction of those who need them.

As product complexity increases and the cost of failure and scientific labor rises, the industry is shifting toward automation. Robotics and AI are making automated biologics manufacturing feasible, reliable, and economically scalable.

We believe the future of biomanufacturing is robotic—closed, automated, and scalable—ensuring critical therapeutics are accessible to every patient who needs them.

Why This Matters

We don’t just build robots; we build the infrastructure for the next generation of biologics manufacturing. Our technology allows biopharma companies to scale production without redesigning their science, drastically lowering regulatory hurdles and bringing costs down to a level where these treatments can actually reach patients.

The Stack & The Scale

The Mission: Build the world’s best robots to make life‑saving therapies accessible to all.

The Technology: Advanced robotic orchestration, high‑precision automation, cloud‑integrated hardware‑software systems, dextrous manipulation, and imitation learning.

The

Location:

Headquartered in San Francisco, CA.

The Backing: Supported by premier investors, including Casdin Capital, Lux Capital, and Y Combinator.

As a Mechanical Engineer in the Multiply Labs team, you will apply your engineering expertise to design complex automated machinery involved in the manufacturing of novel pharmaceutical products.

You’ll be working directly with a cross functional hardware and software team on designing and building the current and next generations of Multiply Labs’ robotic systems. This ranges across designing and selecting robotic equipment, determining high level design goals and objectives, building prototypes and taking them to production. You’ll succeed in the role if you can optimize design using first principle engineering approaches.

We have a mix of projects running simultaneously. You will need great documentation skills and ability to organize thoughts and ideas into actions in order to drive decision making conversations on major projects while coordinating with colleagues.

• Strong fundamental engineering concept understanding
• Investigation of applicable technologies and components
• Prototyping, testing, and iterating designs
• Generation of supporting design documentation
• Responsibilities may also include controls and actuator sizing, interfacing, integration, and testing
• Proficiency with 3D CAD software, including modeling and creation of detailed drawings
• Proven ability to solve complex technical problems by breaking them down into simpler pieces and executable tasks
• Extensive knowledge of mechanical components, common engineering metals, plastics, joining methods, part fabrication methods, and finishing operations
• Understanding of manufacturability for assemblies using DFM/DFA principles
• Experience transferring designs to external suppliers and contract manufacturers for production

• Bachelors of Science in Mechanical Engineering or related field
• Experience designing and building automated production machinery
• Industrial experience developing robot EOATs, work cell fixtures, or material handling systems
• Working knowledge of GD&T standards
• 2+ years experience mechanical design engineering

• Experience with FDA and/or EMA regulated industries
• Proficiency with Onshape CAD
• Hands on experience with machine shop and prototyping tools

• Competitive Compensation: Salary range of $120,000 - $160,000 a year plus meaningful early‑stage equity
  . We want our team to have a real stake in the future we’re building.
• Premium Health: Premium Medical, Dental, and Vision plans with subsidies for child dependents.
• Wealth…