# MTS - Post-Training Lead at Ironsite AI

- Company: Ironsite AI
- What the company does: Ironsite attacks the single biggest cost lever in construction — labor — by revolutionizing how productivity is tracked and optimized. Backed by South Park Commons.
- Company website: https://ironsite.ai
- Type: Startups (AI role)
- Level: Senior
- Location: San Francisco, United States
- Work setup: On-site
- Pay: $250K to $400K base salary per year (USD)
- Posted: 2026-08-21
- Apply by: 2026-10-08
- Apply: https://jobs.gem.com/ironsite-ai/am9icG9zdDr8lZ5-E7mXDWTpkRbTCYOP
- Page: https://www.1752.vc/careers/jobs/ironsite-ai-mts-post-training-lead/

## About the role

As Post-Training Lead , you will report directly to the Chief Science Officer and own our post-training effort end to end: training, benchmarking, and deploying state-of-the-art VLMs that can interpret the complexity of a real-world construction site, built on data no other lab has. This is a hands-on technical lead role: train models, lead the researchers already working on SFT and RL, and help grow the team around this effort.

## What they're looking for

- Build on the Construction Intelligence Benchmark: Expand our existing benchmark suite: video question answering, temporal reasoning, activity recognition, and site-level analytical reasoning
- Build Scalable Pipelines: Develop and own the model training and evaluation pipelines, ensuring we can rapidly experiment, measure performance, and deploy models into production