Senior / Staff Mechanical Engineer - R&D

Fulfil Solutions; Mountain View (CA); On-site; USD 135,000 - 175,000; Full time

Benefits offered by this job

Equity

Occasional work from home

Medical, dental, and vision coverage

401K, life and disability coverage

Generous paid time off

Job summary

Fulfil Solutions in Mountain View, CA is seeking a Senior/Staff Mechanical Engineer to productize our proprietary automation robotics system and develop new features for a multi-robot platform. You will own the design with a cross-functional team spanning R&D Hardware, Systems, and Operations, targeting robust performance, cost-down, and scalable manufacturing.

The role offers growth, equity, and collaboration with a world-class team.

Qualifications

• 4–8 years designing and building complex mechanical systems.
• Bachelor’s or master’s degree in mechanical engineering or equivalent.
• Experience with DFM, DFMEA, 8D, six sigma, relevant engineering tools.
• Experience with CAD, ideally SolidWorks.
• Ability to travel when we deploy new sites - up to 30% of the time.
• Hands on aptitude — able to troubleshoot issues.
• Ability to generate ideas and execute on solutions.
• Desire to work in a startup environment and make an impact.

Responsibilities

• Develop and implement new equipment or functionality to improve the Fulfil technical ecosystem.
• Own proprietary automation system design with a focus on deployment, large-scale manufacturing and reliability.
• Identify mechanical design improvements and verify effectiveness with data-driven approach.
• Lead cost reduction and reliability improvement efforts for mature products.
• Align work to the company roadmap; evaluate value of work considering opex, capex, throughput.
• Lead 3D CAD and BOM generation; detailed design on large complex systems.
• Create detailed component and assembly drawings using GD&T.
• Work with Manufacturing to create processes, tests, and procedures to improve machine reliability and manufacturing efficiency.
• Work with NPI and Operations to drive hardware deployment in new facilities.

Skills

Mechanical design

DFM/DFMEA

SolidWorks

Data-driven analysis

Cross-functional collaboration

Troubleshooting

Startup experience

Travel up to 30%

Education

Bachelor’s or Master’s in mechanical engineering

Tools

GD&T

Job description

Senior / Staff Mechanical Engineer - R&D

Mountain View, CA

Fulfil is a well-funded, rapidly growing, and inclusive company that has developed a custom automation robotics system to pick and pack online orders of groceries and other consumables, bringing delight and a value proposition to consumers that doesn’t exist today. Additionally, its unique design and technology is purpose-built to solve today’s environmental problems in the world’s food supply chain. Founded by a team with previous startup success and backed by top-tier VCs, we are committed to reducing waste, improving environmental impact, and reducing emissions with truly new technology. Our first commercial product launch went live in 2024, we deployed more in 2025 and are in line for even more in 2026.

We can’t do it alone -- we’re seeking curious, capable, passionate team members motivated by the opportunity to create lasting impact on the world through their work. This role offers ample growth opportunities while working side-by-side with an impassioned, multi-disciplinary team spanning mechanical design, software, computer vision, systems integration, and ops to design and operationalize world-changing technology.

Fulfil is committed to creating an inclusive culture, and we celebrate diversity of all kinds. If this sounds like the kind of environment that you find intriguing, then please apply even if you don’t feel you meet all the requirements listed below. We’d love to hear from you.

Your Responsibilities

As a Senior/Staff Mechanical Engineer, you will productize Fulfil’s proprietary technology while conceptualizing and developing new features and equipment to take it to the next level. This role offers the opportunity to work closely on a complex multi-robot system with a cross-functional engineering team ranging from R&D Hardware Design, Systems, Process and Operations. You will have ownership of our automation equipment with a focus on upgrading the current design for robust performance, cost down, mass deployment and manufacturing, and certification while ensuring that design intentions are achieved and maintained through generational changes.

In this role you will:

• Develop and implement new equipment or functionality to improve the Fulfil technical ecosystem
• Own proprietary automation system design with a focus on functional and efficient deployment, large-scale manufacturing and lifetime productivity and reliability
• Identify and implement mechanical design improvements and product changes to solve issues. Verify your improvements effectiveness with a data driven approach
• Lead cost reduction and reliability improvement efforts for mature products
• Align work to the company business roadmap. Evaluate value of work by trading reliability, opex, capex, throughput, and opportunities to increase performance
• Lead 3D CAD and BOM generation, perform detailed design work on large complex systems
• Create detailed component and assembly drawings using GD&T
• Work with the Manufacturing teams to create processes, tests, and procedures to improve machine reliability and manufacturing and assembly efficiency.
• Work with NPI and Operations teams to drive hardware deployment in new facilities

What We’re Looking For

• 4-8 years of experience designing and building complex mechanical systems
• Bachelor’s or master’s degree in mechanical engineering or equivalent
• Experience with DFM, DFMEA, 8D, six sigma, relevant engineering tools
• Experience with CAD, ideally Solidworks
• Ability to travel when we deploy new sites - could be up to 30% of the time for a few months of the year
• Hands on aptitude — able to dive in and troubleshoot issues
• Ability to generate ideas in response to complex issues and execute on solutions
• Desire to work in a startup environment
• Cares about the world and wants to have an impact on it

What we’d love to see

• Expert in Solidworks PDM, Arena Solutions PLM
• Proven record of bringing concepts to production in low turnaround
• Experience in motor system sizing
• Experience in overseeing engineering products made in large quantities
• Experience in food tech and/or automation
• Not afraid of robots

What You Get

• A chance to be a member of a startup with equity
• Ability to solve complex problems with a world-class team
• Flexibility to occasionally work from home when collaboration isn’t needed
• A low-ego company culture that is obsessed with feedback and helping each other grow
• Medical, dental, and vision coverage, with 401K, life and disability coverage as well
• Generous paid time off
• The salary range for this position is $135,000- $175,000 depending on experience

At Fulfil we value diversity and always treat all employees and job applicants based on merit, qualifications, capabilities, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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