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# Firmware Engineer

- **Company:** Critical Loop, Inc.
- **Location:** United States
- **Salary:** $160,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** Board Bringup, Application Programming Interfaces (APIs), Data Analysis, C++ (Programming Language), CAN Bus, Computer Engineering, Software Debugging, Firmware, Supervisory Control and Data Acquisition (SCADA), Joint Test Action (IEEE Standards), Python (Programming Language), Machine Learning, Modbus, Network Service, Signal Processing, System Programming, Data Processing, Backend, Build Management, Process Control Systems, Data Pipelines
- **Published:** August 12, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=eca588fe4e0faaa1

## About the Role

* 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

Work Authorization We are not able to offer visa sponsorship for this role. Candidates must be authorized to work in the United States without sponsorship now or in the future.

## Description

* Design and build software spanning embedded drivers, device communications, backend services, data pipelines, and operator-facing interfaces
 * Develop the network communication and driver layers that power our site controllers and distributed energy resources
 * Build and maintain automated data pipelines for utility interval data analysis and real-time energy monitoring
 * Collaborate with hardware engineers to develop and iterate on embedded system designs
 * Help architect systems that are reliable, observable, maintainable, and deployable across physically distributed sites
 * Participate in hardware bring-up, field testing, commissioning, and debugging of deployed systems
 * Own features from initial design through deployment and field validation


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