Senior Embedded Firmware Engineer
About the role
About Brelle
Energy for what moves us.
The next generation of vehicles and aircraft won't be built with yesterday's manufacturing playbook.
Brelle is building a new approach to manufacturing for an increasingly electrified world, bringing together advanced engineering, software, testing, and automated production to develop and build high-performance energy and powertrain systems.
We're a California based, venture backed team working with some of the most demanding names in high performance mobility, including supercars and superbikes. Our work spans novel battery pack architecture, full-stack software, and automated manufacturing, with the goal of making machines lighter, safer, and more capable.
We're building something ambitious, and we're still early. That means real ownership, difficult technical problems, and the opportunity to see your work move from an idea to something real. We value people who think beyond their job description, challenge conventional approaches, and follow through on what they take on.
Build something exceptional. Own your work. See it move.
About the Role
As a Senior Embedded Firmware Engineer, you'll be a core technical owner of Brelle's embedded platform—the software foundation powering our vehicle architecture and ECUs.
You'll work across the embedded stack, from RTOS and low-level drivers through diagnostics, communication protocols, and platform architecture. You'll work closely with electrical, battery, systems, and vehicle teams to bring ECUs from first power-on through validation and into real superbike and supercar programs.
This is a hands-on, high-ownership role. You'll be expected to make architectural decisions, get into the hardware when things don't work, and drive problems through to production.
What You'll Do
Develop and release production-grade firmware in C/C++ for MCU peripherals and external components including SPI, I2C, UART, CAN/CAN-FD, ADC, DMA, and timers
Architect clean abstractions across RTOS, drivers, middleware, and application layers
Lead ECU bring-up from first power-on through validation
Develop production-grade diagnostics and vehicle communication including UDS, CAN, CAN-FD, Ethernet, and LIN
Shape the structure and evolution of Brelle's embedded codebase, build systems, CI/CD, and development tooling
Work hands-on with hardware in the lab and with vehicle teams during integration and validation
Help establish engineering practices that allow us to move quickly without compromising reliability or safety
Mentor other engineers and raise the technical bar through design reviews, code reviews, and collaboration
What We're Looking For
5+ years developing production firmware in C/C++ for resource-constrained embedded systems
BS/MS in Electrical Engineering, Computer Science, or a related field
Deep understanding of RTOS concepts, concurrency, memory management, and real-time constraints
Strong experience with MCU peripherals, device drivers, and hardware/firmware debugging
Expert with Git, build systems, and CI/CD
Experience taking embedded software from development through validation and production
A track record of owning technically complex problems and driving them through to completion
Preferred Qualifications
Automotive, motorsport, powersports, aerospace, robotics, or other safety-critical experience
AUTOSAR, ISO 26262, or ASPICE
FreeRTOS, SafeRTOS, or other RTOS experience
NXP MCUs, toolchains, and SDKs
ECU development from bring-up through production
How We Work
Understand the Problem
We take the time to understand what we're actually solving before jumping to the obvious answer.
Own What Needs to Happen
We take responsibility for outcomes, not just our individual tasks. If something needs to happen, we figure out how to make it happen.
Optimize for the Team
We make decisions with the broader team and company in mind, sharing information and helping each other move faster.
Refuse the Obvious Answer
We challenge assumptions, explore better approaches, and don't accept "that's how it's always been done."
Keep Your Word
We do what we say we'll do. We communicate early when something changes and hold ourselves accountable to our commitments.
Compensation & Benefits
Base Salary: $165,000–$225,000
Meaningful equity participation through Brelle's Employee Incentive Plan.
Medical, dental, and vision (HMO/PPO)
401(k)
Flexible PTO
Team meals twice a week
Monthly team events
Build something exceptional. Own your work. See it move.
Brelle is an equal opportunity employer.