Ironsite attacks the single biggest cost lever in construction — labor — by revolutionizing how productivity is tracked and optimized. Backed by South Park Commons.
About the role
We're hiring a Research Scientist to help build the vision-language models that turn Ironsite's data into the intelligence layer we're building. You'll work alongside our Chief Science Officer and the rest of the research team on the training, benchmarking, and deployment of state-of-the-art VLMs that can interpret the complexity of a real construction site. Your models will run on data no other lab has, and they'll ship to jobsites where they actually change how things get built.
What they're looking for
- 2-4 years of hands-on research experience designing and training deep learning models, particularly transformer-based architectures. Industry experience, top-tier PhD program, or equivalent
- Deep expertise with modern deep learning frameworks (PyTorch, JAX, or similar) and strong proficiency in Python with solid software engineering fundamentals
- Experience working with large-scale vision or language datasets
- A track record of shipping meaningful research results, whether at a company, in a lab, or in publications
- A background in Computer Science, Machine Learning, AI, Robotics, or a related field
- Experience with vision-language models, video understanding, or multimodal architectures
More about this role
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 is 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...
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