Embedded Software Engineer

About Ecotricity We're Ecotricity, the world's first green energy supply company! Our electricity is 100% green – made from the sun and the wind. In just over 30 years we’ve built 24 wind parks and 3 sun parks all over the country. Ecotricity is the only energy company in the world certified as vegan by both The Vegan Society and Viva!, the vegan charity. As you’d expect, vegan energy is produced without involving animals. We’re proud that we’re a Which? Eco Provider for energy. The Which? Eco Provider endorsement is given to energy suppliers who make the greatest positive impact in generating renewable electricity, building new sources of green energy and helping the transition away from fossil fuels. What makes Ecotricity different from other energy companies is that we take the money we make from our customers’ bills and use it to build new forms of green energy. We call it Bills into Mills and it means that by paying your bill every month you’re helping fight climate change. Every new windmill or sun park we build reduces Britain’s reliance on fossil fuels to generate electricity.

Ecotricity

We’re Ecotricity - Founders of the Global Green Energy Supply Movement

Green electricityGreen gasWind parksGreen energyRenewablesSun parksWind parksWindmillsand Vegan energy

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E

linktr.ee/ecotricity

501-1,000 employees

Utilities

Stroud, Glos

1995

Privately Held

55k LinkedIn followers

Raised $131.3M

• Own the architecture, implementation, and maintenance of all embedded firmware across the vehicle, including flight-controller firmware, power distribution, sensors, and seeding payloads.
• Set firmware priorities, identify reliability risks and technical gaps, and drive projects from an ambiguous problem to a validated release.
• Bring up new boards with electrical engineers: read schematics, validate interfaces, write drivers, and debug failures at the boundary between hardware and software.
• Develop dependable device communication and command handling over CAN, UART, SPI, and I2C, with clear contracts for telemetry, timing, and fault behavior.
• Integrate firmware with our vehicle software so commands, device state, and telemetry behave consistently from the microcontroller to the operator.
• Design and validate safe startup states, watchdogs, interlocks, and recovery behavior for resets, communication loss, sensor faults, and interrupted updates.
• Own firmware builds, versioning, flashing, over-the-air updates, and recovery workflows so deployed vehicles run known, traceable software.
• Build automated tests, simulation, and hardware-in-the-loop coverage that catch regressions and exercise failure modes before releases reach the fleet.
• Partner with manufacturing and flight operations to make provisioning, calibration, diagnostics, and servicing repeatable and practical.
• Investigate bench and field failures using logs, telemetry, and lab instruments; resolve root causes and turn what you learn into better software and tests.
• You have mapped the vehicle’s firmware, hardware interfaces, build and update paths, and most consequential reliability risks, and the team has a clear plan for what to address first. You can independently build, flash, instrument, and debug the key embedded systems and trace their behavior through our vehicle software. You have delivered a meaningful firmware improvement through bench and integration testing into an operational release, working with flight operations to verify its behavior in the field. You have improved at least one recurring source of friction in testing, provisioning, updates, or diagnostics, and established a practical ownership and release cadence for the firmware stack.
• Supporting the Rainmakers behind the mission
• Making earth more habitable is ambitious work and we want the people doing it to feel supported
• A stake in what we build: Meaningful stock options and the opportunity to help shape Rainmaker as an early member of the team.
• Support for your health: Comprehensive medical, dental, and vision insurance for you and your family.
• An investment in your future: A 401(k) with employer matching to help you build long-term savings.
• Time to recharge: Unlimited PTO for rest, exploration, and the people and pursuits that matter to you plus a generous paid holiday schedule.
• Time for a growing family: Paid parental leave for both parents to welcome a child and spend time together.
• Lunch together: Daily lunch provided at our El Segundo headquarters, giving Rainmakers a chance to share a meal and connect with teammates.
• Help making the move: Relocation assistance for eligible roles to support your transition to Rainmaker.

• 3+ years of hands-on experience developing embedded software or firmware for microcontroller-based systems, including board bring-up, hardware integration, and deployment into production or field use.
• Demonstrated ownership of an embedded subsystem from design through release and ongoing support, including making technical decisions independently, validating behavior on hardware, and resolving failures in real operating conditions.
• Strong systems programming skills in Rust and/or C/C++, with the ability and willingness to work across both Rust and C/C++ codebases.
• Practical experience with peripheral drivers and communication buses such as CAN, UART, SPI, and I2C.
• Comfort reading schematics and using oscilloscopes, logic analyzers, and hardware debuggers to isolate problems across electrical and software boundaries.
• The ability to reason about system failures and implement robust state machines, fault detection, safe outputs, and recovery paths.
• Experience building maintainable firmware with version control, reproducible builds, automated testing, and disciplined release practices.
• Evidence of high agency: you surface problems without waiting to be assigned, make sound decisions with incomplete information, ask for help when it matters, and close the loop on results.
• Clear communication and the ability to work closely with hardware engineers and operators, explain tradeoffs, and document decisions so others can build and service what you ship.
• Experience with drones, robotics, aerospace, or other systems where software controls physical equipment in demanding conditions.
• Familiarity with PX4, MAVLink, flight-controller development, or flight-critical software.

• Stock options
• Medical insurance
• Dental insurance
• Vision insurance
• 401(k) with employer matching
• Unlimited PTO
• Paid parental leave
• Daily lunch
• Relocation assistance