Manufacturing Engineer

At Fourier, we’re making on-site hydrogen universally accessible. Our breakthrough architecture enables highly modular and fully automated electrolyzer systems that scale efficiently across a wide range of operating conditions. Backed by leading venture investors, we’re building real hardware to accelerate the transition to a clean energy future.

We’re looking for a Manufacturing Engineer to help take our electrolyzer systems from prototype to scalable production. This role sits at the intersection of design, supply chain, and the factory floor. You’ll own manufacturing processes end-to-end—driving build quality, repeatability, cost reduction, and throughput as we scale. You will have the chance to bring up an electrolyzer system assembly line from scratch and shape how manufacturing at Fourier will transform.

This is a hands-on role working directly with hardware, technicians, and cross-functional engineering teams.

• Develop, document, and optimize manufacturing and assembly processes for electro/mechanical/fluidic systems

• Own manufacturing process flows, work instructions, tool selection, BOMs, and build documentation

• Support prototype builds, pilot production, and transition to low- and mid-volume manufacturing

• Identify and resolve manufacturing issues related to yield, quality, cost, and reliability

• Collaborate with design engineers to influence DFM/DFA early in the design cycle

• Work closely with supply chain and vendors to qualify parts, tools, inventory, and processes

• Design or specify fixtures, tooling, and test setups to support production and validation

• Support root cause analysis and corrective actions for build or field issues

• Help define manufacturing KPIs and continuous improvement initiatives

• BS in Mechanical, Manufacturing, Industrial Engineering, or equivalent practical experience

• 3+ years of experience in a manufacturing, production, or process engineering role

• Strong understanding of mechanical assemblies, tolerance stack-ups, and production workflows

• Experience supporting hardware builds from prototype through production

• Comfortable working hands-on in a lab or factory environment

• Ability to troubleshoot and solve problems at the system and component level

• Clear communicator who works well across engineering, operations, and supply chain

• Experience with complex electro-mechanical or fluid systems

• Background in clean tech, energy, aerospace, automotive, or industrial equipment

• Familiarity with Lean manufacturing, PFMEA, 5S, or continuous improvement methodologies

• Experience scaling manufacturing in an early-stage or fast-growing companyWhy Join Fourier

• Mission-driven clean energy work with real-world impact
  

• High ownership and visibility — your work directly shapes the product
  

• Opportunity to grow into technical leadership or operations roles
  

• Collaborative, hands-on engineering culture
  

• Competitive salary and equity commensurate with experience
  

• Fully paid Medical, Dental, and Vision coverage
  

• 401(k)
  

• Paid vacation and sick leave
  

• Free lunches on-site