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# Senior Embedded Firmware Engineer

- **Company:** Optivolt Labs, Inc.
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Salary:** $160,000.0 - $220,000.0
- **Contract:** Permanent contract
- **Skills:** Unit Testing, Bluetooth, C++ (Programming Language), Communications Protocols, Computer Engineering, Embedded C, Linux on Embedded Systems, Embedded Software, Github, Hardware-In-The-Loop Simulation, Python (Programming Language), Mesh Networking, MISRA C (C Programming Language), Real-Time Operating Systems, Systems Architecture, Universal Asynchronous Receiver/Transmitter, Wireless Networks, Wi-Fi Technology, Scripting, Serial Peripheral Interface, Integration Tests, Information Technology, Bare Metal
- **Published:** October 2, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=609ec2bad8ff76dc

## About the Role

We are looking for an experienced Embedded Firmware Engineer ready to take on a wide range of projects. Candidates should be ready to contribute to all parts of the firmware development process and provide input on hardware development. Candidates should be comfortable working hands-on with hardware, excited to work in a fast-paced and fluid start-up environment, and experienced with relevant connected, distributed systems., * Bachelor's degree or higher in Computer Engineering, Computer Science, or related field

 * Proficiency in writing reliable, maintainable embedded C/C++ applications with an RTOS
 * Proficiency with Python and/or other scripting languages for desktop tooling
 * Demonstrated ability to own features from conception to implementation, including design, architecture, integration with external systems and stakeholders, development, testing, and maintenance
 * Experience with communication protocols, including I2C, SPI, UART, RS-485, etc.
 * Experience with wireless networking: Wi-Fi, Bluetooth (LE), and/or similar
 * Ability to develop tests and test setups for unit testing and hardware-in-the-loop (HIL) integration testing
 * Experience using and implementing CI/CD systems (such as GitHub Actions) for embedded applications
 * Hands-on experience working with and troubleshooting embedded hardware
 * Proficiency with basic lab and test equipment, including power supplies, multi-meters, oscilloscopes, logic analyzers, etc.
 * Experience with multi-processor or coprocessor system architectures, particularly involving embedded Linux running alongside an RTOS

Preferred skills

 * Experience with Zephyr / nRF Connect SDK and embedded Linux coprocessor environments
 * Experience with BLE Mesh or other Mesh Networking protocols
 * Familiarity with Functional Safety code, including UL/IEC 61730, MISRA, or equivalents
 * Familiarity with UL 1741 for solar hardware, specifically regarding Rapid Shutdown
 * Experience writing bare-metal C/C++
 * Experience working with solar

Additional requirements

 * Willingness to work extended hours as needed to support critical milestones
 * Everyone at Optivolt is required to participate in on call support for customers
 * Must be based in San Francisco, CA

## Description

* Develop embedded firmware for the Optivolt Hub and Optivolt Balancer, including current and next-generation products, with a focus on the Optivolt Hub
 * Own the full lifecycle of new features to maximize device performance, improve system reliability, and elevate the user experience
 * Implement systems to provide better insights and tools for support engineers to remotely assist customers
 * Expand integration and unit test coverage, including new hardware-in-the-loop setups
 * Develop ancillary desktop or embedded software to support development, testing, and production
 * Work closely with hardware engineers and designers in the creation and bring-up of next-generation hardware
 * Provide support to customers when issues get escalated to engineering; a small amount of travel may be required