# Principal Firmware Engineer Jobs in San Francisco, CA 200 principal firmware engineer jobs in San Francisco, CA. Top employers: OpenAI, Astranis, Anthropic, and 5 more. Salaries from $30K–$500K. 200 open roles · page 1 of 14 **Electrical Engineer** at Nori San Francisco, CA, US | FULL_TIME | USD 110K–120K/yr [Apply](https://zerogtalent.com/robotics-jobs/noril1/electrical-engineer-117568) | [JD](https://zerogtalent.com/api/agent/job/electrical-engineer-117568) **Hardware Security Engineer, New Grad (2027)** at Together AI San Francisco | INTERN | USD 140K–150K/yr [Apply](https://zerogtalent.com/ai-jobs/together-ai/hardware-security-engineer-new-grad-2027-5238471007) | [JD](https://zerogtalent.com/api/agent/job/hardware-security-engineer-new-grad-2027-5238471007) **Electrical Engineer, PCBA Test Infrastructure, Robotics** at OpenAI San Francisco | FULL_TIME | USD 318K–485K/yr [Apply](https://zerogtalent.com/ai-jobs/openai/electrical-engineer-pcba-test-infrastructure-robotics-83939922-2a95-4cc0-b8ff-e1b15ed5254b) | [JD](https://zerogtalent.com/api/agent/job/electrical-engineer-pcba-test-infrastructure-robotics-83939922-2a95-4cc0-b8ff-e1b15ed5254b) **Hardware Security Engineer Intern (Summer 2027)** at Together AI San Francisco | INTERN [Apply](https://zerogtalent.com/ai-jobs/together-ai/hardware-security-engineer-intern-summer-2027-5238469007) | [JD](https://zerogtalent.com/api/agent/job/hardware-security-engineer-intern-summer-2027-5238469007) **FPGA Engineer** at Astranis San Francisco | FULL_TIME | USD 140K–205K/yr [Apply](https://zerogtalent.com/space-jobs/astranis/fpga-engineer-4325685006) | [JD](https://zerogtalent.com/api/agent/job/fpga-engineer-4325685006) **Senior Firmware Engineer** at Fellow.app San Francisco, CA | FULL_TIME | USD 195K–215K/yr [Apply](https://zerogtalent.com/ai-jobs/fellowapp/senior-firmware-engineer-5259528007) | [JD](https://zerogtalent.com/api/agent/job/senior-firmware-engineer-5259528007) **Product Reliability Engineer** at OpenAI San Francisco | FULL_TIME | USD 207K–365K/yr [Apply](https://zerogtalent.com/ai-jobs/openai/product-reliability-engineer-30a1d941-f12c-4589-a7a0-dad116b9aa33) | [JD](https://zerogtalent.com/api/agent/job/product-reliability-engineer-30a1d941-f12c-4589-a7a0-dad116b9aa33) **Senior FPGA Engineer** at Astranis San Francisco | FULL_TIME | USD 175K–240K/yr [Apply](https://zerogtalent.com/space-jobs/astranis/senior-fpga-engineer-4017405006) | [JD](https://zerogtalent.com/api/agent/job/senior-fpga-engineer-4017405006) **Principal Mechanical Design Engineer** at Astro Mechanica San Francisco | FULL_TIME | USD 220K–270K/yr [Apply](https://zerogtalent.com/space-jobs/astro-mechanica/principal-mechanical-design-engineer-96349dee-a130-4a74-b602-8977c5b87f4e) | [JD](https://zerogtalent.com/api/agent/job/principal-mechanical-design-engineer-96349dee-a130-4a74-b602-8977c5b87f4e) **Principal Software Engineer, Full Stack — Codex** at OpenAI San Francisco | FULL_TIME | USD 459K–536K/yr [Apply](https://zerogtalent.com/ai-jobs/openai/principal-software-engineer-full-stack-codex-74842880-e750-4664-9e2e-83b4c96c5a03) | [JD](https://zerogtalent.com/api/agent/job/principal-software-engineer-full-stack-codex-74842880-e750-4664-9e2e-83b4c96c5a03) **SoC Engineer** at OpenAI San Francisco | FULL_TIME | USD 287K–485K/yr [Apply](https://zerogtalent.com/ai-jobs/openai/soc-engineer-e8e7fd72-bc4e-4717-8a67-81e4798372c7) | [JD](https://zerogtalent.com/api/agent/job/soc-engineer-e8e7fd72-bc4e-4717-8a67-81e4798372c7) **Principal Electrical Engineer, Power Systems** at Astro Mechanica San Francisco | FULL_TIME | USD 250K–290K/yr [Apply](https://zerogtalent.com/space-jobs/astro-mechanica/principal-electrical-engineer-power-systems-8cf17035-cdc7-4b35-8a23-873a2ea67d7d) | [JD](https://zerogtalent.com/api/agent/job/principal-electrical-engineer-power-systems-8cf17035-cdc7-4b35-8a23-873a2ea67d7d) **Software Engineer, CI/CD & ML Infrastructure** at OpenAI San Francisco | FULL_TIME | USD 318K–485K/yr [Apply](https://zerogtalent.com/ai-jobs/openai/software-engineer-devops-a5dd77a2-9ab1-4165-98aa-c7bb0260985b) | [JD](https://zerogtalent.com/api/agent/job/software-engineer-devops-a5dd77a2-9ab1-4165-98aa-c7bb0260985b) **Recruiter, Hardware** at Physical Intelligence San Francisco | FULL_TIME [Apply](https://zerogtalent.com/robotics-jobs/physical-intelligence/recruiter-hardware-b8bc4a93-08c7-46ca-98b0-020a8ebb9594) | [JD](https://zerogtalent.com/api/agent/job/recruiter-hardware-b8bc4a93-08c7-46ca-98b0-020a8ebb9594) **3P Revenue Accounting & Reporting** at Anthropic San Francisco, CA | Seattle, WA | FULL_TIME | USD 190K–230K/yr [Apply](https://zerogtalent.com/ai-jobs/anthropic/3p-revenue-accounting-reporting-5456619008) | [JD](https://zerogtalent.com/api/agent/job/3p-revenue-accounting-reporting-5456619008) [Next page](https://zerogtalent.com/principal-firmware-engineer-jobs-in-san-francisco-ca.md?page=2) --- *Source: [Zero G Talent](https://zerogtalent.com), the job board for space, defense, AI, robotics and frontier-tech companies.*