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Position Details

Senior Mechanical Engineer – Construct

at Alloy Enterprises ( View all jobs )
Burlington, MA

Senior Mechanical Engineer – Construct

This Senior Mechanical Engineer will work within the Machines team by designing, commissioning, and improving Alloy’s roll-fed inkjet printing and laser-cutting machine. The role will report to the Director of Engineering.

If you’re right for this role, you are comfortable with all elements of machine design; have expertise in one or more mechanical engineering disciplines; and have been through the design process for a reasonably complex machine. You know what it takes to make a reliable & safe machine and are comfortable with taking a tough engineering challenge and making it work.


  • Prototype and test subsystems for a roll-fed machine to automatically print on, laser cut, inspect, and assemble Alloy’s novel feedstock
  • Run design processes with requirements, specifications, concept generation, concept down-selection, design reviews, etc.
  • Proof-of-concept calculations and benchtop testing to inform design decisions
  • Drive improvement of overall equipment effectiveness, manufacturing tolerance, process stability, process monitoring, machine reliability, and automation
  • Refine and revisit machine requirements with the process team
  • System and sub-system level design and analysis; utilizing parametric modeling to evaluate trade-offs
  • Own & update subsystem designs, BOM, specifications, CAD models, and drawings
  • Develop a full understanding of Alloy’s manufacturing process, and use that to drive DFM, cost-down, and performance optimization efforts
  • Select and manage external vendors for components and subsystems
  • Statistical analysis for assembly tolerance stack up and perform root-cause analyses
  • Mentor early-in-career engineers


  • Background in electro-mechanical systems and/or precision machine design
  • Comfortable in a fast-paced startup environment with a bias towards action
  • Sound fundamentals and industrial best practices for robust equipment design
  • Familiarity with design for manufacturing, including sheet metal, machined and welded parts.
  • Exposure to a variety of automation systems, control cabinets, industrial sensors, PLCs, data acquisition and I/O devices. Production machinery is a plus
  • GD&T, SolidWorks, and FMEAs
  • 5+ years industry experience and a 4-year degree in Engineering
  • Familiar with metal additive manufacturing, robotics, or industrial automation
  • Experience with rapid prototyping: 3D printing, mill, lathe, laser cutting, CNC, hand tools
  • Basic SW experience is always helpful: Python, linux, motion control, or PLC programming



  • Flexible paid time off, nine company holidays, and a shutdown around the holidays
  • Medical, dental, and vision, including dependency coverage
  • 401k with 3% employer contribution, options for pre or post-tax
  • Stock options
  • All employees are eligible for paid parental leave regardless of gender identity or expression
  • Career advancement opportunities in a high-growth environment
  • Good coffee, regular happy hours, and weekly team lunches


Apply Online

Position: Senior Mechanical Engineer – Construct

Equal Employment Opportunity

We are committed to creating an equitable and inclusive environment for all our employees and are seeking to build a team that reflects the diversity of the people we hope to serve with our products. We are proud to be an equal opportunity employer.

About Us

Alloy Enterprises is transforming how aluminum parts are made. Aluminum will be part of the electrification journey of everything that moves, and flexible, on-demand, and cost-competitive fabrication will be essential to this transition. Automotive, aerospace, and industrial equipment need to be lighter, and fabrication methods need to keep pace with the speed of innovative new designs. Our novel, scalable, full-stack additive manufacturing process disrupts the multi-year lead time, process limitations, and high up-front cost of aluminum casting.“Alloy Enterprises is fundamentally transforming aluminum manufacturing for transportation, much like Carnegie Steel did for railroad, 100 years ago. Now is the time for us to bring scalable additive aluminum manufacturing to mass production and accelerate our society’s ability to electrify everything that moves.” – Alison Forsyth, CEO

Founded in early 2020, the company has raised $38M to date and is generating revenue with our pilot manufacturing facility. For the first time, on-demand fabrication meets the cost and scale of casting in an exploding $102B market – largely driven by electrification. We are now building out our team and our production fab facilities to meet customer demand. If you are a sleeve-rolling builder who sets their bar high and enjoys thinking out loud in a collaborative and inclusive working environment, we’d love to hear from you.