Senior Software Development Engineer in Test, Embedded Systems

Biofire Technologies is on a mission to give gun owners better tools for reducing preventable gun injuries and deaths, especially among children. We believe our technology, combined with a best-in-class customer experience, will define the future of firearms safety for the next generation. Our mission-driven approach has earned support from the firearm community, the tech world, and the media.

Biofire employees encompass a diverse range of talents, including world-class engineers who have designed and tested firearms, medical devices, robots, cars, satellites, rockets, and supersonic jets; expert technicians from aerospace, defense tech, special forces, and gunsmithing; and elite operators from high-tech, advanced manufacturing, and regulated industries. Whether building the product or powering the company behind it, every Biofire team member is united by an obsession with safety, reliability, and operational excellence.

Reducing accidental firearm injuries and deaths requires original thinking and authentic collaboration, so we’re deeply invested in building a team and culture that can achieve our mission together. Team members enjoy autonomy and flexibility from day one, so expect to be immediately tasked with solving challenging problems and building new systems that work. We’ll hold you accountable for executing audacious goals, giving and receiving honest feedback, and helping your teammates succeed. You’ll receive respect, kindness, and support from every direction while you figure out how to get it all done.

As a Senior Software Development Engineer in Test (SDET), Embedded at Biofire, you will play a pivotal role in owning quality outcomes end-to-end across software, firmware, and hardware. We are looking for someone who combines system-level thinking with hands-on technical execution to build scalable test infrastructure, accelerate feedback loops, and increase confidence in every release.

To succeed, you will need to be able to define and drive alignment on a complete test strategy, establish reliable test execution with clear throughput and time-to-test baselines, and deliver measurable improvements in automation and release velocity. You will need to be an autonomous owner who is eager to build the testing systems, practices, and release mechanisms that prevent defects and improve safety-critical reliability at scale. If you’re excited about helping to solve mission-critical challenges, we encourage you to apply.

Day-to-day responsibilities of the role will include:

• Own test strategy and execution across software/firmware/hardware boundaries, including stakeholder alignment, sustained throughput, time-to-test baselining, and high-quality reporting/feedback mechanisms;

• Enable and scale HIL testing, identifying gaps, delivering a scalable plan, and significantly increasing automated coverage of HIL test cases;

• Own CI/CD and quality gates, identifying gaps, scaling pipelines, and enabling fast, reliable feedback loops to developers and cross-functional teams;

• Establish release process and release cycle, including baseline SLO/SLA, release readiness criteria, and initiatives that improve release velocity without sacrificing quality;

• Build a culture of quality and testing, partnering with developers to make testing a first-class experience through dashboards, alerting, reviews, and continuously improving best practices and standards.

We understand that not all applicants will possess skills that perfectly align with our job qualifications. At Biofire, we appreciate diverse experiences from various industries, and we encourage all individuals who meet the necessary qualifications to submit their applications. While having the "desired" qualifications may strengthen a candidate's profile, we also welcome applicants with alternative experiences to apply.

• Demonstrated ownership of end-to-end quality outcomes for embedded or integrated systems, with a prevention-first mindset and a track record of raising quality standards;

• Strong system-level testing expertise across software, firmware, and hardware—selecting appropriate methodologies (unit, integration, end-to-end, reliability/stress, HIL/SIL) and designing test frameworks for scale;

• Proven ability to integrate automated testing into CI/CD, building fast, reliable feedback loops and operational signals (monitoring/alerting, dashboards, trend reporting);

• Technical fluency across the embedded stack, including automation/tooling in C/C++, Python, or similar, familiarity with I²C/SPI/UART, and strong Linux scripting/debugging skills;

• Track record building maintainable automation stacks, including designing and maintaining stable, readable automated test suites, and connecting automation strategy to CI/CD practices, smoke/regression coverage, and test signal quality;

• Analytical thinking, strong communication, and quality leadership, including mentoring engineers, leading by example, and driving data-informed decisions through clear, structured communication for the audience.
  

In addition to competitive pay, as a full-time employee at Biofire you are eligible for:

• Stock Options in Biofire, 401(k), HSA - and other financial benefits

• Medical Insurance - including plan options with $0 payroll deduction

• Dental, Vision and Life Insurance Plans - with $0 payroll deduction

• 3 Weeks Vacation and Sick time (Flex Time for salary positions), and 13 Paid Holidays

• Parental Leave - and other family-building, adoption and surrogacy benefits

The compensation range for this role is $165,000 - $190,00/annual salary + stock options + benefits.

Pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. The total compensation package for this position may also include other elements dependent on the position offered. Details of participation in these benefit plans will be provided if an employee receives an offer of employment.

This is a full-time, salaried role. Our dog-friendly, state-of-the-art headquarters is located in beautiful Broomfield, Colorado, between Boulder and Denver. The team regularly engages in collaborative in-person sessions at our vibrant office space, but you will be offered the flexibility to work from home as needed.
We expect you to bring your very best, and in return, we will provide the support necessary for you to excel. You'll collaborate with colleagues you appreciate, respect, and find inspiration from, and have access to all the technical resources needed.

We’re bringing innovation to a technological problem that has persisted for decades, so we depend on diverse, inclusive, and collaborative teams to break new ground and do great work. We welcome people from all qualified backgrounds, and we don’t discriminate based on race, religion, color, political affiliation, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

This role handles information subject to US Export Control Regulations. Applicants must be (a) a citizen of the United States; (b) a lawful permanent resident of the United States (“Green Card” holder); or (c) a person admitted into the United States as an asylee or refugee to be considered for the position.