Head of Machine Learning Engineering at Ironsite AI | CA, US | Rezi

Head of Machine Learning Engineering at Ironsite AI

Head of Machine Learning Engineering

Ironsite AI · CA, US

4 days ago

Head of Machine Learning Engineering

Ironsite AI · CA, US

4 days ago
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About the Role

We're hiring a Head of ML Engineering to own how our research team's models get tested, labeled, shipped, and run in production. You'll build everything around the models: the systems research uses to A/B test models on live jobsites, the tools our labelers use every night, the data tooling research trains from, and the orchestrator and inference stack that deliver reports by 5 AM. You'll start as a hands-on tech lead and grow the team from there.

Responsibilities

  • Own experimentation for research, including building systems to A/B test models in production.
  • Own the Tagging Interfaces tool for the labeling team, including pre-labeling footage and tracking throughput.
  • Own data tooling for research, including dataset versioning, search, and training set assembly.
  • Ship ML-backed features in the superintendent report and troubleshoot issues.
  • Own MLOps, orchestration, and inference, including model deployment, versioning, and rollback.
  • Manage GPU and cloud spend, and adapt to hardware changes.

Requirements

  • 7+ years of software engineering experience.
  • At least 3 years building production ML systems.
  • Experience leading a small team as a tech lead or manager while still shipping code.
  • Experience building experimentation or A/B testing systems in production.
  • Experience building internal tools for non-engineers.
  • Hands-on experience with MLOps and GPU inference.
  • Ability to debug across the full stack.
  • Clear, concise communication skills.

Skills

  • MLOps
  • GPU inference
  • A/B testing
  • Internal tool development
  • Debugging
  • Communication

Location

  • San Francisco Bay Area

Work Type

  • On-site

Experience Level

  • 7+ years of software engineering
  • 3+ years building production ML systems

Salary/Compensations

  • $200k-$330k per year

Benefits

  • Meaningful founding-team equity
  • Full benefits including health, dental, vision
  • 401(k) with 6% match
  • Daily catered lunch

About the Company

  • Ironsite is building the intelligence layer for the physical world, designing wearable hardware and transforming shift footage into next-morning reports with AI models.
  • We accelerate construction speed, efficiency, and predictability for complex projects.
  • Our philosophy is pro-worker, believing technology should empower, not replace, the workforce.
  • Ironsite is deployed on major construction projects, capturing extensive footage while prioritizing worker privacy.
  • We are backed by leading investors and prominent figures in technology and construction.
  • We envision a future where craft workers are more valued and the construction industry has an intelligence layer for autonomous construction.