Senior Software Engineer, Mobile Apps

WHO WE ARE

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. 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 Engineer, Mobile Apps at Biofire, you will own implementation of end-to-end features and user flows across iOS and Android, connecting the app experience to hardware behavior with reliability and data integrity. You’ll design and document a plan for a reusable UI/design library that enables consistent, accessible, polished experiences and reusable components across Biofire mobile apps. You will partner closely with a Senior Software Engineer to maintain feature parity between the mobile app and custom AOSP hardware, using evidence-based decision-making and tight stakeholder partnership to deliver cohesive user outcomes.

You’ll also be an active contributor to the team’s test culture, ensuring the application is built for testability and supports automated, full end-to-end integration testing from app to hardware.

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

• Own implementation of end-to-end app-to-hardware features and user flows across iOS and Android, using platform conventions and ensuring a cohesive, reliable experience;
• Design and document a plan to build and maintain a reusable UI/design library for Biofire mobile apps, with attention to accessibility, reusable components, polished edge states, and visual consistency;
• Partner with a Senior Software Engineer to maintain feature parity between the mobile app and custom AOSP hardware, aligning on behavior, data flows, and integration expectations;
• Actively participate in and strengthen the team’s test culture by building for testability and enabling integrations that support automated, full end-to-end testing from app to hardware;
• Collaborate with software team members to develop and execute a plan that ensures application testability and supports scalable end-to-end automation.

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.

• Strong track record delivering cross-platform mobile apps on iOS and Android, including support for the full product lifecycle and parity discipline;
• Experience integrating mobile applications with hardware; mobile device hardware experience is a plus;
• Platform-native mobile experience (Swift/Kotlin); experience with React Native is a plus;
• Demonstrated ability to build with design and user experience in mind, including accessibility, reusable…