Staff Platform 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 an exceptional Staff Platform Engineer to help build the Ironsite platform, the product surface that turns our video data into something construction teams act on every day.

You'll own the technical foundation for the dashboards project leaders open at 5 AM, the labor-management tools superintendents run their entire jobsite on, the mobile experience craft workers carry in their pocket, and the integration layer that connects Ironsite to the software the industry already lives in. This is the work that decides whether Ironsite becomes the operating system for the field or another tool competing for attention.

You'll operate with real ownership over critical initi
[…]
as much about the seams between systems as the systems themselves.

• Typically 8+ years of engineering experience, with meaningful time spent operating at a Staff/Principal level at a company you're proud of.

Preferred Qualifications

• 8+ years of engineering experience, with at least 3 spent operating at Staff/Principal level at a company you're proud of.
• Deep experience owning and evolving core platform infrastructure including data pipelines, backend services, developer tooling, or the systems everything else at the company runs on.
• A track record of shipping systems that scaled by orders of magnitude in throughput, users, or data volume, and doing so without over-engineering early or accumulating dead architectural weight late.
• Strong opinions about system design tradeoffs, and the judgment to know when to invest in abstraction vs. when to ship the boring solution that works today.
• A history of raising the bar around you, including mentoring senior engineers, driving technical decisions through influence rather than authority, and making the teams you're on materially better.
• Comfort operating in environments where the right answer isn't obvious yet.
• Genuine excitement about industries that have been underserved by software, and interest in becoming the person who builds the infrastructure the physical world runs on.
• A background in Computer Science, Software Engineering, Mathematics, Physics, or a related technical field, or the equivalent hands-on experience.

Location, Compensation, & Perks

• San Francisco Bay Area (on-site)
• Base salary: $275k-$325k per year, commensurate with experience
• Meaningful founding-team 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.

Compensation
The base pay range for this role is $275,000 – $325,000 per year.