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Lumafield

Senior Embedded Software Engineer

2 weeks ago• San Francisco, CA
About Lumafield: 

Founded in 2019, Lumafield has developed the world's first accessible X-Ray CT scanner for engineers. Our easy-to-use scanner and cloud-based software give engineers the ability to see their work clearly, inside and out, at an extremely affordable price.  

Engineers make million-dollar decisions every day, and they need tools that give them the greatest possible insight into their products. By offering unprecedented visibility into products, as well as AI-driven tools that highlight problems and generate quantitative data, Lumafield promises to revolutionize the way complex products are created, manufactured, and used across industries. 

We are an impact driven company obsessed with providing the best value to our customers keeping their needs at the center of our evolution. Our team today includes world-class researchers and industrial designers, PhDs, creators, founders of successful startups, and zero egos. We are backed by top venture capital funds like Kleiner Perkins, Lux Capital, DCVC, Spark Capital, and others.

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The company is headquartered in Cambridge, MA and has an office in San Francisco, CA.

About the role: 
 
As a Senior Embedded Systems Engineer at Lumafield, you will work on the software that powers our next-generation, manufacturing in-line CT scanning products. You’ll work on the bleeding edge of X-ray physics, high-speed detectors, image processing, and embedded systems. On a small team working on our newest hardware, you’ll bring the skill to extract the maximum performance out of the system and achieve great outcomes for our customers.
 
This role is ideal for candidates who are looking for an opportunity to own the embedded system, firmware and software design on an early-stage new product.
 
This role is located in Lumafield’s San Francisco, CA office.  You may be required to travel occasionally to Lumafield’s Cambridge, MA office.

What You'll Do:



  • Write performance edge application software to acquire, process, and stream radiograph data




  • Write appliance firmware to maintain tight control loops for scanner peripherals




  • Participate in code reviews, build up testing infrastructure, and help set a high standard for how the team can move fast and maintain high levels of quality.




  • Ship production critical Linux-based applications




  • Architect data acquisition solutions that balance configurability and customizability




  • Collaborate closely with our product, research, hardware, and software development teams to understand requirements and architect solutions


    •  

About You:

  • 3+ years of experience writing low-level, high-performance software in Python and C; you not only write code, but also understand the performance impact on a specific system

  • 3+ years of experience shipping applications with embedded Linux, including configuring core services such as udev, systemd, and kernel schedulers

  • 3+ years of startup experience – you know the trade-offs between shipping fast and perfecting a design

  • Experience writing firmware with STM32 microcontrollers or equivalent

  • Experience with managing the software release lifecycle for a fleet of edge/IoT devices using industry-standard OTA update mechanisms, including fleet status and monitoring

  • Mastery of software engineering fundamentals including debuggers, profilers, and evaluating trade-offs between different technology choices, and proficiency with Python’s built-in concurrency models (asyncio, threading, and multiprocessing)

  • Basic familiarity with electrical engineering concepts including schematic layout, PCBA
    design, bring-up, and testing

  • Able to design, integrate, and test systems by interpreting component and product datasheets

  • Bachelor's degree in Engineering or related field

Bonus Points For:



  • Experience building & shipping high performance hardware-accelerated image processing edge solutions using NVIDIA CUDA and/or Jetson platform




  • Experience with classical computer vision techniques and machine learning CV algorithms




  • Experience with microcontroller-based motor control




  • Experience with shipping user-facing UIs written in React.js



We are unable to sponsor or take over sponsorship of employment visas at this time. All applicants must be legally authorized to work in the United States without current or future sponsorship.

Lumafield offers both competitive cash and equity compensation, as well as a health & wellness stipend, 401k, parental leave, flexible PTO, commuter benefits, company wide events and more!  

Lumafield is committed to building a team that represents a variety of backgrounds, perspectives, and skills, because the more inclusive we are, the better our work will be. Do you feel like your skills don’t meet every single requirement listed? We encourage you to apply anyway – If you’re excited about our technology, the opportunity, and are eager to learn more we’d love to hear from you!  

In keeping with our beliefs and goals, no employee or applicant will face discrimination or harassment based on: race, color, ancestry, national origin, religion, age, gender, marital domestic partner status, sexual orientation, gender identity, disability, genetic information or veteran status. 

Reach out if you want to be a part of what we are building.

San Francisco Applicants: Review the San Francisco Fair Chance Ordinance guidelines applicable in your area.

Client-provided location(s): San Francisco, CA
Job ID: d6e737f8-78d3-4ab8-9fc9-fb39b7a96875
Employment Type: OTHER
Posted: 2026-03-18T17:15:09

Perks and Benefits

  • Health and Wellness

    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • Life Insurance
    • Short-Term Disability
    • Long-Term Disability
    • FSA
    • Mental Health Benefits
    • HSA
    • Fitness Subsidies

  • Parental Benefits

    • Family Support Resources
    • Adoption Assistance Program

  • Work Flexibility

    • Flexible Work Hours
    • Hybrid Work Opportunities

  • Office Life and Perks

    • Commuter Benefits Program
    • Casual Dress
    • Happy Hours
    • Snacks
    • Some Meals Provided
    • Company Outings
    • Holiday Events

  • Vacation and Time Off

    • Paid Vacation
    • Unlimited Paid Time Off
    • Paid Holidays
    • Personal/Sick Days

  • Financial and Retirement

    • 401(K)
    • Company Equity
    • Relocation Assistance
    • Financial Counseling

  • Professional Development

    • Promote From Within
    • Mentor Program
    • Lunch and Learns
    • Shadowing Opportunities

  • Diversity and Inclusion

    • Diversity, Equity, and Inclusion Program
    • Employee Resource Groups (ERG)
    • Founder led
    • Latinx founded/led