> Markdown version of [/jobs/ext/4395895-senior-or-principal-firmware-engineer-optical-transceivers](https://www.wearedevelopers.com/jobs/ext/4395895-senior-or-principal-firmware-engineer-optical-transceivers). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior or Principal Firmware Engineer - Optical Transceivers

- **Company:** Lumafield, Inc.
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Salary:** $160,000.0 - $220,000.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, C++ (Programming Language), Computer Programming, Computer Engineering, Software Debugging, Embedded Software, Firmware, Hardware Interface Design, System Testing, Reliability of Systems
- **Published:** October 11, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=428c82183c124d33

## About the Role

* Bachelor's or master's degree in Electrical Engineering, Computer Engineering, or a related field
 * Significant experience in embedded firmware development
 * Strong programming skills in C or C++
 * Knowledge of hardware interfaces, debugging tools, and system testing
 * Experience with optical communication systems preferred
 * Strong technical leadership and problem-solving skills

## Description

* Design, develop, and maintain embedded firmware for optical transceiver systems
 * Collaborate with hardware and systems engineers on product integration
 * Debug firmware issues and improve system reliability
 * Develop testing procedures and validate firmware performance
 * Review technical designs and support engineering documentation
 * Mentor team members and contribute to firmware development standards