Join DoOperator

Build the infrastructure
for evidence-based thinking.

We are a small, technical team with a clear mission: make rigorous experimentation the default — not the exception — for how people and organizations make decisions.

How we work

Intellectual rigor

We build on solid foundations — not heuristics, not vibes. If a claim can be tested, we test it. If an assumption is hidden, we surface it. The platform is a reflection of how we think.

Small team, high leverage

We stay small deliberately. Every person on the team owns significant surface area. We move fast by staying focused — one platform, built right, rather than ten features built carelessly.

Research to production

The distance from a paper to a shipped feature should be short. We hire people who can read the literature and implement from it — and who want to see their work running in production.

Current opportunities

All roles are remote. We work across time zones asynchronously.

Research Scientist — Causal Inference

Full-time · Remote
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Lead the statistical engine behind Reinforce OS. Design and implement estimators for average treatment effects, heterogeneous effects, and mediation. Expected to publish.

  • PhD or equivalent in statistics, econometrics, or ML
  • Deep familiarity with structural causal models and do-calculus
  • Experience with Bayesian computation (Stan, PyMC, or similar)
  • Strong Python, ideally with JAX or PyTorch

ML Engineer — Reinforcement Learning

Full-time · Remote
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Build the adaptive layer of Reinforce OS. Implement bandit algorithms, contextual policies, and online learning loops that turn experiment results into updated interventions in real time.

  • Strong background in RL: bandits, policy gradient, model-based methods
  • Production experience shipping ML systems
  • Comfort with experiment infrastructure (logging, evaluation, rollback)
  • Python; PyTorch or JAX preferred

Full-Stack Engineer

Full-time · Remote
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Own the product surface of Reinforce OS. Work across the Python/FastAPI backend and Next.js frontend to build the interfaces that make causal experimentation accessible to practitioners.

  • Strong TypeScript and React (Next.js App Router)
  • Solid Python and API design
  • Product sense — you care about making hard things feel simple
  • Experience with data-heavy UIs a plus

Research Intern — Causal AI

Internship · Remote · 3–6 months
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Work directly on the intersection of causal inference and foundation models. Help design experiments, implement estimators, and contribute to research that will ship in the platform.

  • Graduate student in ML, statistics, or related field
  • Familiarity with causal graphs and at least one inference framework
  • Strong written communication — you can explain methods clearly

Reach out anyway.

If you care deeply about causal inference, reinforcement learning, or making rigorous science accessible — we want to hear from you, regardless of whether a specific role is listed.

careers@dooperator.ai →