MTS - Lead Mobile 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 Mobile Lead to own one of the most mission-critical systems at Ironsite: the thousands of devices we provision and deploy as Ironsite body cameras in the field. This is our BOA program which we are scaling to 1,000+ devices by the end of the year across multiple different jobsites. It is just the beginning.

Every piece of data Ironsite produces starts with one of these devices working correctly in a worker’s hands on a jobsite. That makes this role the backbone of the company. You'll ship the app, but more importantly you'll keep it working: supporting it in the field, debugging issues you can't reproduce at your desk, and making it measurably more reliable ever
[…]
ons, and real-time data and analytics surfaces, where correctness, performance, and clarity for downstream teams all matter at once.

• A collaborative instinct as this role sits at the intersection of every other technical team, and you’re the kind of engineer other teams want to work with because their work lands better through you.
• Systems thinking across end-to-end product architecture; you care as much about the seams between systems as the systems themselves.
• Typically 5+ years of mobile-focused product experience, the majority on native Android, with a track record of shipping things you’re proud of.

Preferred Qualifications

• Experience building Android for real-world conditions such as offline-first data, sync conflicts, unreliable networks, and non-technical users.
• Experience building and managing fleets of Android devices at scale (MDM, kiosk/lock-task mode, OTA updates, device provisioning), directly relevant as we scale BOA past 1,200 devices.
• Consumer-grade polish, where user experience and engagement matter as much as engineering rigor.
• Experience in construction, manufacturing, or similar operational industries where your users are in the field, not behind a desk.
• Genuine excitement for industries underserved by software, and interest in becoming one of the engineers who builds the mobile experience the physical world runs on.
• Familiarity with construction management software (Procore, Autodesk, Trimble), HR tech, or similar enterprise workflow tools.

Location, Compensation, & Perks

• San Francisco Bay Area (on-site)
• Base salary: $150k-$250k 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 $150,000 – $250,000 per year.