Firmware Engineer II

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Irvine, CA
In-Office
Biotech
The Role
About Us   

Fluxergy is a rapidly growing in vitro diagnostics company innovating on the cutting-edge of laboratory testing. We’re developing the first and only multi-modal point-of-care platform that enables molecular, clinical chemistry, immunoassay, and hematology testing on the same system.  

Our platform spans many markets including the clinical, veterinary, and food safety industries. We are seeking self-motivated problem solvers who are excited to help decentralize traditional laboratory infrastructure.  

At the core of our company’s identity is a strong foundation in engineering. We take great pride in our commitment to critical thinking and pragmatic problem-solving through a modular and systemic perspective. We hold the conviction that transparent communication, coupled with the flexibility to adjust to evolving scenarios and the willingness to venture beyond familiar territories, is crucial to both our success and yours.  

Our product: https://vimeo.com/176673475 


About the Role

At Fluxergy, things move fast—and that’s part of the fun. One week you might be deep in firmware for STM32s, the next you're teaming up with hardware or assay folks to bring up a new board or test out fresh ideas. We’ve got a lot of exciting product work ahead, and we’re looking for someone who’s curious, collaborative, and loves figuring things out.
 
If you’re the kind of person who likes to learn new stuff, solve tough problems, and work with a bunch of smart, motivated people—we’d really like to meet you.

Team culture: 
- Positive 
- Proactive 
- Accountable  
- Team oriented 
- Continuous learner
- Great communicator  
- Build strong working relationships 
- Contribute to a productive team culture

What You Will Do

  • Design, develop, and test bare-metal and RTOS-based firmware (FreeRTOS preferred) for STM32 microcontrollers, ensuring robust and high-performance operation across embedded systems.
  • Lead board bring-up and hardware integration for new Fluxergy Analyzer platforms, using standard tools.
  • Collaborate with cross-functional teams—including molecular assay, automation, and hardware teams—to align firmware functionality with overall product requirements.
  • Develop and maintain embedded Linux (Yocto-based) applications as part of the full software stack, contributing to both user-facing and internal system-level features.
  • Ensure firmware adheres to quality standards and regulatory requirements and FDA design controls when applicable.
  • Create and maintain internal documentation and tools to support development, testing, and compliance efforts.
  • Contribute to the continuous improvement of firmware architecture and design through experimentation, quantitative analysis, and system profiling.
  • Debug complex firmware and hardware issues in a collaborative, fast-paced development environment.
  • Read and interpret hardware schematics to assist with troubleshooting, validation, and development planning.
  • Actively contribute to a positive, growth-oriented team culture.

What You'll Need to Have

  • 5+ years developing firmware 
  • Bare metal firmware development experience  
  • Working knowledge of the STM32 family of microcontrollers 
  • RTOS experience (FreeRTOS preferred) 
  • Linux / Yocto experience on embedded systems 
  • Familiarity with the STM32Cube IDE and toolchain 
  • Board bring-up and test experience 
  • Experience with standard tools such as JTAG, oscilloscopes, multimeters, etc.  
  • Working knowledge of Git version control  
  • BS in Computer Science, Computer Engineering, or equivalent technical degree / experience. 
  • Strong plus if you: 
  • Have worked on an FDA regulated project 
  • Are familiar with safety critical design processes and controls 
  • Ability to read schematics 

Interview Process  
Our interview processes my differ slightly from role-to-role; however, most of our interviews will follow a similar pattern: 

- Recruiter Interview  
- Hiring Manager interview  
- Technical Interview
- On-site Interview
- Decision    

We are an early-stage company and may change our interview process from time-to-time, but our hope is everyone who interviews with us has a positive experience, even if an offer isn’t presented.  
 
Benefits 
Excellent Medical/Dental Benefits 
- 99% medical benefit premiums paid by Fluxergy and covers employee, partner, and dependents 
- 100% dental and vision premiums paid for employee, partner, and dependents 
- 100% Life Insurance premiums paid for the employee  

Work - Life Balance Minded Time Off  
- 15 paid vacation days  
- 2-week paid winter break  
- 7 company paid holidays  
- 5 paid sick days 

A Work Culture Which Believes in Promoting from Within
- Wear lots of hats / accelerate your career growth! 
- We are a flat organization by design – lots of visibility!   
- Many of our current leaders started their career with Fluxergy!    

Salary Range: $105,000 - $115,000/yr

Additional Information
Fluxergy is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, marital status, age, disability, national or ethnic origin, military service status, citizenship, or other protected characteristic.

Fluxergy participates in the E-Verify program. Please click herehere, here for more information.

Fluxergy is committed to protecting your personal data. Please review our Privacy Policy.

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The Company
HQ: Irvine, California
96 Employees
Year Founded: 2011

What We Do

Fluxergy was founded 10 years ago with a vision to democratize the world of laboratory testing, by making testing more accessible and affordable. Fluxergy’s platform technology enables us to understand our world and our health in ways that were never possible before.

Fluxergy is developing a platform with multi-modal detection technologies which bring the variety of tests found in the central lab to the palm of your hand – This includes molecular testing like PCR, Immunochemistry and chemistry testing, and microscopy testing such as cytometry. Fluxergy’s platform vision is the detection of genes, proteins, small molecules, and cells with the same analyzer. The automated, sample-to-answer workflows can be customized for specific sample and testing methods.

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