Firmware Engineer

Proficiency in one or more systems programming languages, such as C, C++, or Rust

Experience with a higher-level language used for services, automation, or data processing, such as Python or Go

Experience writing firmware, drivers, or hardware-facing software for embedded targets

Comfort working close to hardware, including reading schematics, debugging over serial or JTAG, and reasoning about timing and electrical behavior

Experience building backend services and APIs, ideally for real-time, distributed, or telemetry-driven systems

Ability to take ownership of ambiguous problems and operate with minimal oversight in a fast-moving startup environment

Preferred Requirements:

Familiarity with industrial protocols such as Modbus, DNP3, or CAN bus

Experience with SCADA systems, distributed energy resources, or industrial controls

Experience with battery energy storage systems, inverters, power conversion equipment, or other grid-edge hardware

Background in aerospace, defense, robotics, automotive, or other safety-critical embedded domains

Exposure to machine learning, signal processing, controls, or data analysis in a hardware context

A degree in physics, computer engineering, electrical engineering, or a related technical discipline

At Critical Loop, we're committed to rewarding and supporting our team. Our benefits package includes equity ownership through stock options, giving you a stake in our success, along with comprehensive health coverage (medical, dental, and vision) through an HRA with a generous allowance. We also provide a retirement savings plan and unlimited paid time off so you can recharge and maintain work-life balance.

Critical Loop is an equal opportunity employer. We're committed to building a diverse team and creating an inclusive workplace where everyone can thrive. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other protected characteristic under applicable law.