Senior Firmware Engineer - Communications at Lunar Energy
Mountain View, CA
$120,000–$175,000from the description
Jul 27, 2026
Mountain View, CA
Jul 29, 2026
What this job asks for AI summary
A Senior Firmware Engineer role at a clean-energy hardware company, focused on developing embedded firmware for home energy products. Day-to-day work spans power electronics controls, wireless and powerline communication protocols, system diagnostics, control algorithms, and manufacturing automation support. The role suits an experienced embedded engineer comfortable owning firmware from concept through high-volume production.
Senior level · 5+ years · San Jose-Sunnyvale-Santa Clara, CA · Full-time
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Roughly 730 people in the San Jose-Sunnyvale-Santa Clara, CA area plausibly meet what this posting asks for (software developers). range 150–1,100
Applicant volume Moderate — A normal amount of company. The rare requirements below are what will separate a shortlisted application from the rest.
Rare in this occupation — lead with these, and say what you built with them.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $217,796 (middle half $177,469–$231,052). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 29, 2026. It is a model, not a headcount.
Why we read it this way (5)
The posting uses a single 'Desired Skills' heading for all technical requirements — there is no separate 'Required' vs. 'Nice to Have' split. All skills under that heading have been treated as hard gates given the firm language ('5+ years experience delivering firmware', 'Proficiency in C', 'Working knowledge of…') and the overall framing of the section.
esp-wifi-mesh is called out separately under 'Ideal Candidate Skills' as an ideal-but-not-required differentiator, so it is marked preferred.
The degree requirement is stated as 'Degree in a computer-engineering related or adjacent field, OR demonstrated commensurate ability' — equivalent experience is explicitly accepted, so no minimum degree is flagged.
The salary range ($120,000–$175,000) is disclosed as a California Pay Transparency estimate; actual offer may vary by level and location.
No specific work location is stated beyond the California pay-transparency disclosure; the CBSA is inferred as San Jose (Lunar Energy's known headquarters area) but is not confirmed in the posting text.
Read the full posting
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