Mechanical Engineer

Fabri is seeking a Mechanical Engineer to design and build the equipment that powers every step of our casting process. You will own mechanical systems from concept to commissioned hardware, working closely with process engineers and senior engineering staff to turn process requirements into machines that perform on the production floor. This role suits a mid-level engineer with hands-on equipment design experience who is ready to take on broader technical ownership. Your work will directly shape Fabri's throughput and scalability as we grow. The Company We are an early-stage investment casting startup building a fully integrated digital foundry. Our mission is to deliver precision metal castings with unparalleled speed and cost-effectiveness. By leveraging our exclusive high-throughput additive manufacturing process and AI-driven design software, we deliver castings in days, saving our customers critical time and money. We are well capitalized and backed by top-tier investors and major customers, with significant funding raised in the past year. We have shipped our first customer parts and generated significant commercial interest in both the aerospace and industrial sectors. Fabri is located in the greater Boston area. During this startup phase and for the foreseeable future, all employees work on-site and take an active part in building and operating the end-to-end process. Responsibilities Support build vs. buy decisions with performance analysis and cost estimatesDevelop custom manufacturing equipment and subsystems, from requirements definition through detailed designTranslate process requirements into mechanical designs, and use equipment capabilities to open new process regimesFabricate and assemble equipment hands-on, from machined components to fully integrated systemsCommission new equipment on the shop floor and bring it into productionWrite test plans and run acceptance testing before equipment enters productionTroubleshoot equipment failures to root cause and implement fixesDesign guarding and interlocks into equipment, informed by hazard analysisDesign fixtures and material handling systems that move parts between process stepsProduce detailed drawings with GD&T and tolerance stack-ups for machined and fabricated componentsTrack requirements and interfaces across tightly coupled subsystems, and assess the downstream impact of design changesIntegrate sensors and actuators into equipment designs to support automationDesign equipment for manufacturability and maintainability as Fabri scales throughputPresent designs at stage-gated technical reviews and document design rationale Qualifications Even if you don't meet every qualification, we encourage you to apply. We value curiosity, problem-solving skills, and strong fundamentals. Bachelor's degree in Mechanical or Aerospace Engineering (or a closely related field)2 to 5 years designing and building equipment or vehicle systemsProficiency in Autodesk Inventor or a similar CAD platform, with strong GD&T and DFM skillsA track record of taking equipment from CAD to functioning hardwareHands-on experience machining and fabricating components, and assembling equipment on the shop floorExperience sourcing components and working with machine shops and fabrication vendorsSolid fundamentals in heat transfer and machine designA habit of questioning requirements and assumptionsClear written and verbal communication of technical decisionsComfort with high ownership and ambiguity in fast-moving startup environments Preferred Skills Experience designing equipment for high temperatures, pressures, or vacuum, or for molten and corrosive materialsBackground in manufacturing equipment or industrial automationAerospace hardware experience, such as propulsion systems or turbomachineryExperience scaling hardware systems for throughput and reliabilityExperience with pneumatic and hydraulic systemsFamiliarity with control systems and basic programmingFamiliarity with machine safety standards and risk assessment Why Join? Design and build first-of-its-kind equipment for a new manufacturing process. Work directly with process engineers and operators on the production floor. Own high-impact mechanical systems at an early-stage company. See the equipment you design running in production. Help reshore critical U.S. manufacturing capability. Competitive salary and meaningful equity, with strong growth potential. Fabri is not able to provide visa sponsorship for this position. To comply with ITAR regulations, candidates for this role must be U.S. persons (U.S. citizens or lawful permanent residents). Fabri is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Safety and commitment to quality are central to everything we do.