Sr. Embedded Firmware Engineer

The posting, as Ironsite Ai wrote it

About Ironsite

Ironsite is building the intelligence layer for the physical world. We design our own wearable hardware, deploy it alongside craft workers, and transform a shift's footage into a next-morning report. Our internal team and purpose-built models label the data overnight and deliver actionable insights to superintendents by 5 AM.

We are accelerating the speed, efficiency, and predictability of construction, especially for complex, mission-critical infrastructure projects, including data centers, LNG facilities, sports stadiums, hospitals, and other large-scale developments, by training AI models on egocentric construction footage and labor productivity data. We are built with a pro-worker philosophy at our core: we believe technology should empower the workforce, not replace it. We're working to give craft workers and project leaders better visibility into what's happening on-site, while creating a system where the reality of construction and the chaos of each day are finally available to the people running the project.

Ironsite is deployed across several of the largest active construction projects in the country. To date, we've captured more than 100,000 hours of construction footage across seven states, now process thousands of hours of site activity every day, and maintain a worker opt-out rate below two percent. This is enabled by a workforce-first architecture that anonymizes devices, captures no audio, and never releases raw video.

Ironsite is backed by leading investors (8VC, South Park Commons, Saga Ventures) and prominent operators across technology and construction, including Eric Schmidt, Jeff Dean, Jeff Rothschild, Mark Leslie, Scott Wu, Eric Glyman, Karim Atiyeh, Russell Kaplan, and others, alongside over a dozen construction industry operators who have joined us as partners in building this.

Longer term, we believe Ironsite is the foundation for what construction becomes in the next decade. The systems we're building will be the operating system for how the physical world gets built. We see a future where craft workers are more valued, more visible, and better paid for the skill they bring, and where the industry finally has the intelligence layer that makes autonomous construction possible. Both start with the same foundation.

The Role

We're hiring a Senior Embedded Firmware Engineer to help own the firmware that runs Ironsite's wearable hardware.

This is a foundational role on the hardware team. The firmware you build has to reliably capture, compress, and upload full days of high-quality first-person video from active jobsites, on ruggedized wearable devices operating in the harshest environments in American industry. Battery life, image quality, thermal performance, and upload reliability are all firmware problems in this role. If the firmware breaks, the whole product breaks.

You'll work directly with our hardware, manufacturing, and cloud infrastructure teams to bring devices from initial silicon bring
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est infrastructure. You've shipped your first meaningful firmware improvement to production devices.

• First 6 months. You've owned a major firmware initiative end to end, whether it's a next-generation camera bring-up, a fleet-wide OTA architecture improvement, or a battery life optimization that materially extends shift capacity. Your work is running on every deployed device.
• First 12 months. You're the internal authority on firmware at Ironsite. Our devices are more reliable, more efficient, and easier to update because of you. When we scale from thousands of devices to hundreds of thousands, we do it because the firmware you built holds up.

Location, Compensation, & Perks

• San Francisco Bay Area (on-site)
• Base salary: $200k-$300k per year, commensurate with experience
• Significant early-stage equity
• Full benefits including health, dental, vision, and 401(k) with 6% match
• Daily catered lunch
• Office in San Francisco, next to Oracle Park and the Caltrain

Final compensation is determined by experience, location, and level.

Why This Role

Every category-defining hardware company has a firmware engineer who was the reason the product actually worked in the real world. Not because they wrote the fanciest code, but because they cared obsessively about the last 5% of image quality, the last 30 minutes of battery life, and the one edge case that would have caused a fleet-wide failure at scale.

Ironsite is at that moment. We have the product, the customers, the funding, the manufacturing partnerships, and a hardware roadmap that scales into hundreds of thousands of units. What we need is the firmware engineer who is going to make sure the devices actually deliver on what our data, AI, and customer promises require.

If you've spent your career shipping camera firmware on wearables, and you're ready to do it again on a product that matters more than most, we want to talk.

Compensation
The base pay range for this role is $200,000 – $300,000 per year.