Senior Mechanical Engineer

Lumafield•San Francisco, CA

1d•Onsite

About The Position

Lumafield is seeking a Senior Mechanical Engineer to help design, prototype, and refine the next generation of its industrial CT scanning systems. The role spans motion systems, structures, system integration, and user-facing features, with a focus on developing reliable, manufacturable, and innovative solutions. The product is a complex hardware-software system, so success requires systems thinking, hands-on prototyping, and the ability to bring structure to ambiguous design problems. The engineer will collaborate with electrical, firmware, systems, and software engineers to build hardware that is both functional and delightful to use. This is a hands-on, in-person position based in Lumafield’s San Francisco, California office. The role includes technical leadership of mechanical design, delivery against quarter-scale goals, and involvement throughout the product lifecycle—from concept and design through engineering builds and transfer to mass manufacturing. The engineer will decompose business goals into actionable technical solutions, make informed tradeoffs to accelerate project timelines, coordinate cross-functional engineering goals, and mentor junior colleagues. Lumafield develops industrial CT scanning systems and AI-driven tools that provide visibility into products and quantitative insights for manufacturing. The company is headquartered in San Francisco and also has an office in Cambridge, Massachusetts.

Requirements

Typically have a bachelor's or master's degree and multiple years of relevant experience executing a broad range of activities directly applicable to the role.
Thrive in fast, high-stakes startup environments.
Identify appropriate solutions to ambiguous, under-defined, and open-ended problems.
Navigate ambiguity and remain resilient through the ups and downs of a project.
Communicate and coordinate requirements effectively with other teams, tailoring messages to the audience.
Consider the short- and long-term impacts of significant technology choices.
Serve as a role model for other engineers and model a standard of excellence.
Have enthusiasm for using AI tools to improve quality and increase speed.

Nice To Haves

Experience leading projects through a complete product lifecycle, including early manufacturing and mass production.
Experience designing motion systems, precision mechanisms, or mounting for imaging systems.
Background in industrial automation, inspection, or scientific instrumentation.
A portfolio of mechanical designs, prototypes, or shipped products that can be shared.

Responsibilities

Lead the technical aspects of mechanical design for complex assemblies and subsystems, developing well-scoped milestones to deliver quarter-scale goals.
Follow inventions through the full product lifecycle, from concept and design to first engineering builds and transfer to mass manufacturing.
Use technical expertise to make informed tradeoffs in scope and execution and accelerate project timelines.
Decompose business goals into technical solutions that can be executed by multiple team members.
Drive cross-functional collaboration with stakeholders to identify technical needs and develop effective engineering goals.
Work with and mentor junior colleagues to help them refine their craft.