Senior Firmware Engineer I - Batteries

Join Axon and be a Force for Good.

At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each other.

Life at Axon is fast-paced, challenging and meaningful. Here, you’ll take ownership and drive real change. Constantly grow as you work hard for a mission that matters at a company where you matter.

Your Impact

Contribute to AIoT Device-level Firmware Infrastructure as part of the Platform & Firmware development team and advance Axon’s mission to Protect Life. The Platform Firmware supports all of Axon’s Camera-based products, Robotics, key ownership of the Cellular LTE Link, Automated Test Systems for organizational Engineering Excellence, and is always at the fore-front of Innovation with Hardware Engineering for new programs.

The first priority of your impact is to be a member of the Platform & Firmware Battery sub-team with a critical eye towards Battery Safety & Thermals, Battery Health, Battery Charging, Runtime Profiling, Fleet-wide Metrics and all advanced Battery Firmware logic across Axon’s products. Also, innovating and instrumenting Automated Testing fixtures to protect new releases from regressions across many permutations. With few exceptions, the majority of Axon’s products are Battery-powered and we put significant emphasis on Battery Traits.

Our team builds with AI in the loop. We use AI coding and data-analysis tools every day to compress routine work, and spend the time saved on what demands an expert: battery safety logic, bench validation and root-cause decisions. You own the correctness of everything you ship, however it was written.

The types of firmware development environments where our most challenging battery work lies is on complex System-on-Chips (SoC), Power Management Integrated Circuits (PMIC), USB-C intricacies, and working with the vendors who own the Battery Fuel Gauges. Our team prefers to work in C, C++, Rust, Python and Yocto. Golang experience is a bonus.

Where You’ll Work

Location: Preferred locale is Scottsdale, AZ or Seattle, WA.

[Candidates near Boston, MA; Brussels, Belgium; Tampere, Finland; or Greater Romania may also be considered upon request]

What You’ll Do

Implementation and verification of Firmware for Battery Safety logic

Implementation and verification of Firmware for Battery Fuel-Gauging logic, including when working with multiple batteries that work together to create a composite Fuel Gauge 0 - 100% value

Implementation and verification of Firmware for Accelerated Battery Charging with Thermal considerations

Implementation and verification of Firmware for De-rating Batteries to achieve State of Health RMA targets

Implementation and verification of Firmware for eLinux User-space daemons that override Power Management and leverage Qualcomm System-on-Chip PMICs

Implementation and verification of Firmware patches for USB-C sub-systems where power is routed through when customizations are required for battery charging and related topics (e.g., moisture detection)

Implement fleet-wide battery metrics across 500K+ devices with Splunk dashboards and alerting, using AI-assisted analysis to spot degradation trends and anomalies faster than manual review allows

Diagnose and debug products RMA'd by Axon's customers, using AI tools to triage logs and draft findings, and deliver accessible failure analysis reports with remediation steps to Leadership

Collaborate heavily with Battery Engineers in the Electrical Engineering on any/all Battery topics; including meetings with APAC Battery vendors

Support Battery Runtime Profiling with breakdowns of any/all products supported by Axon both via Joulescopes and Automated Test Systems (ATS)

Write concise Battery Test Plans for HW Verification and Validation Engineers

Build and advance Axon R&D's Automated Test Systems (ATS) with custom battery-focused hardware fixtures, using AI to widen coverage across charger, temperature and battery-pack permutations so releases from Axon or 3rd parties don't introduce regressions

Write and review Design Docs and Pull Requests, including AI-generated code, and hold it to the same bar as your own

Be a Team Player, Mentor, Strong Communicator and be ready and willing to support the Team when needed

What You Bring

B.S. in Computer Engineering, Electrical Engineering or equivalent

Experience with Battery and Power Management sub-systems, Safety and Thermal

Experience in programming with C, C++, Rust, Golang and/or Python

Real-world Industry Firmware or Embedded experience of 8+ years developing on Battery-powered IoT products

Experience with Boot-loaders

Experience with System-on-Chips (SoC)

Ability to read Datasheets and Schematics

Experience and ability to use electrical lab bench equipment to profile and diagnose firmware-hardware boundary issues

Experience with concise Technical Writing and Architecture Diagramming

Strong understanding of Computer Architecture and Peripherals

Strong understanding of Operating Systems, Concurrency and Networking concepts

Experience with both Kernel and User-space Embedded Linux with exposure to Yocto, OpenWRT or other Embedded Distros for Board Support Packaging (BSP)

A mindset for Data-driven Engineering Excellence

Daily, hands-on use of AI coding and analysis tools in your engineering work, with the judgment to know when their output can't be trusted

Benefits that Benefit You

Competitive salary and 401k with employer match

Discretionary paid time off

Paid parental leave for all

Medical, Dental, Vision plans

Fitness Programs

Emotional & Mental Wellness support

Learning & Development programs

And yes, we have snacks in our offices

Benefits listed herein may vary depending on the nature of your employment and the location where you work

This role is based out of our Seattle or Scottsdale offices, and follows a hybrid schedule. We rely on in-person collaboration and ask that team members work onsite Tuesdays through Fridays, with the flexibility to work remotely on Mondays, unless there is an approved workplace accommodation. We believe that connection fuels innovation, and our in-office culture is designed to foster meaningful teamwork, mentorship, and shared success.

Axon is a total compensation company, meaning compensation is made up of base pay, bonus, and stock awards. The actual base pay is dependent upon many factors, such as: level, function, training, transferable skills, work experience, business needs, geographic market, and often a combination of all these factors. Our benefits offer an array of options to help support you physically, financially and emotionally through the big milestones and in your everyday life. To see more details on our benefits offerings please visit https://www.axon.com/careers .

Base Pay Range

$141,000 — $225,600 USD

Don’t meet every single requirement? That's ok. At Axon, we Aim Far. We think big with a long-term view because we want to reinvent the world to be a safer, better place. We are also committed to building diverse teams that reflect the communities we serve.

Studies have shown that women and people of color are less likely to apply to jobs unless they check every box in the job description. If you’re excited about this role and our mission to Protect Life but your experience doesn’t align perfectly with every qualification listed here, we encourage you to apply anyways. You may be just the right candidate for this or other roles.

Important Notes

The above job description is not intended as, nor should it be construed as, exhaustive of all duties, responsibilities, skills, efforts, or working conditions associated with this job. The job de