Aimed at principal embedded firmware engineers who architect large systems in power electronics, with a remote work arrangement and deep technical leadership needs.
Derived from job-description analysis by Serendipath's career intelligence engine.
As a Principal Firmware Architect at Heron Power, you will lead the technical vision and architecture for embedded firmware, working closely with cross-functional teams to ensure robust and scalable solutions for power conversion products, ideal for someone who thrives in a fast-paced, deeply technical environment.
Original posting from Heron Power via Ashby
WHAT TO EXPECT
Heron Power is a startup building cutting-edge power electronics for the 21st-century grid. We aim to debottleneck the growth of electricity generation and consumption with scalable, innovative, and cost-effective hardware solutions, accelerating the electrification of everything.
Our first goal is to build better converters (inverters & rectifiers) to connect large-scale renewables, storage, and loads to the grid. Heron’s leadership team is made up of seasoned veterans who have designed and shipped gigawatts of power conversion products.
We believe no one person knows everything. We learn together, build together, and solve hard problems from first principles. You’ll work in a fast-moving, deeply technical environment where ownership and impact are real.
JOB OVERVIEW
As a Principal Embedded Software Engineer / Firmware Architect, you will own the technical vision and architecture for Heron’s embedded firmware platform.
You will define how our converters are operated and monitored at the device level — from microcontroller selection and RTOS architecture to resource management, safety infrastructure, and production firmware processes. This role blends deep hands-on engineering with system architecture and technical leadership.
WHY THIS ROLE IS DIFFERENT
This role owns the device brain. You’ll architect the firmware platform that every Heron product is built on — shaping performance, reliability, maintainability and scaleability at the foundation — while partnering closely with controls and cloud engineers to deliver a complete solution.
If you enjoy building robust embedded systems from the metal up and setting technical direction for an entire product line, you’ll thrive here.
HOW YOU WILL CONTRIBUTE
Architecture & Technical Leadership
- Define and own the long-term architecture for embedded firmware across Heron products
- Establish reusable platform software, hardware abstraction layers, and shared infrastructure
- Set coding standards, architectural ethos, and development practices, while leading design reviews and mentoring embedded engineers
- Drive system-level technical decisions across firmware and hardware boundaries
Real-Time & Control Firmware
- Architect and implement RTOS-based firmware for high-performance power conversion
- Design low-latency control infrastructure, fault management, telemetry, real-time scheduling, and key drivers and peripherals (PWM, ADC, communications, etc.)
- Evaluate and select microcontrollers/SoCs for new platforms
- Build safety-critical and high-reliability firmware systems
Device Infrastructure
- Design bootloaders, secure firmware architecture, and update mechanisms
- Implement logging, diagnostics, tracing, and observability tools on-device
- Define device-side communication interfaces and data models
- Partner with the connected systems team members to enable telemetry, OTA, and fleet management
- Support manufacturing test, provisioning, and production workflows
Quality & Tooling
- Architect build system, CI/CD, and automated testing infrastructure for firmware
- Define unit, integration, and hardware-in-the-loop testing strategies
- Improve developer tooling and validation pipelines
WHAT YOU WILL BRING
MUST-HAVE
- 8+ years of embedded firmware development with multiple shipped products
- Expert-level embedded C/C++
- Deep experience with RTOS, bootloaders, and low-level hardware drivers
- Proven experience architecting large embedded systems (not just implementing features)
- Experience building firmware CI/CD and automated testing frameworks
- Strong hardware debugging skills (oscilloscope, logic analyzer, etc.)
- Demonstrated technical leadership and mentorship
NICE-TO-HAVE
- Real-time control systems or power electronics experience
- Safety-critical or high-reliability firmware (IEC 61508, UL1998, etc.)
- Secure boot and device security experience
- Experience integrating embedded systems with cloud/IoT platforms
- FPGA or ASIC familiarity
- Production manufacturing and field support experience
If you are passionate about technology and enjoy working in a fast-paced environment, we would love to hear from you. Join us in accelerating the electrification of everything at Heron Power.
Heron Power provides competitive compensation (salary and equity) and benefits. The salary for this role ranges from $170,000 to $260,000 per year.
Source: Heron Power careers (Ashby)