Senior / Staff Mechanical Engineer - R&D

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 RD 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 GDT 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 ... (truncated, view full listing at source)