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Open nowPosted 15 days ago

Machine Learning Engineer (Reinforcement Learning Systems)

Deccan AI Automation16 open roles

Where
Bengaluru
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Your applicationOpen nowMachine Learning Engineer (Reinforcement Learning Systems)Deccan AI Automation · Bengaluru

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Share of postings closed within
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  5. 34.2%30 days
  6. 43.5%60 days
This job: posted 15 days ago

The posting

Machine Learning Engineer (Reinforcement Learning Systems)

Overview

We are looking for a Platform Engineer to build the infrastructure, tooling, and systems that power large-scale Reinforcement Learning (RL) workflows. This role focuses on enabling researchers to train, evaluate, and deploy RL models efficiently by providing a scalable and reliable experimentation platform.

You will work at the intersection of distributed systems engineering and ML research, building platforms that abstract away infrastructure complexity and enable “self-serve” experimentation for research teams.

About Deccan AI

Deccan AI is a fast-growing, venture-backed AI infrastructure company focused on training, evaluating, and improving next-generation AI systems. Headquartered in the Bay Area, with a growing India hub in Hyderabad, the company was founded by alumni of IIT Bombay, IIM Ahmedabad, and former Google leaders.

We work with some of the world’s leading AI frontier labs and research organizations, including Google DeepMind, Snowflake, and other cutting-edge AI teams. Backed by Prosus Ventures, Deccan AI recently raised $25M in Series A funding and is entering a significant growth phase.

With a global network of over 1 million experts, advanced automation systems, and vertically integrated platforms, we deliver the high-quality data and evaluation infrastructure that state-of-the-art AI models depend on. As the AI infrastructure market rapidly expands, Deccan AI is building the systems powering the future of AI.

About the Role

We're hiring an ML Engineer to work on Reinforcement Learning, partnering directly with a frontier AI lab. You'll design and train agents that learn, adapt, and improve working on RL and RLHF systems that sit at the core of how modern AI systems are trained and aligned.

What You'll Do

  • Design, implement, and train RL agents using policy-gradient and value-based methods (PPO, DQN, SAC, etc.)
  • Build and tune reward models and simulation environments for agent training
  • Work on multi-agent RL systems and RLHF pipelines for model alignment
  • Run large-scale training experiments and analyze agent behavior/failure modes
  • Collaborate with research teams to translate RL research into production-ready systems

What We're Looking For

  • 2–4 years of hands-on experience in reinforcement learning or related ML research
  • Strong Python skills and experience with PyTorch, TensorFlow, or JAX
  • Familiarity with Ray RLlib, Stable Baselines3, CleanRL, Gymnasium, or MuJoCo
  • Solid understanding of core RL algorithms: PPO, DQN, SAC, actor-critic methods, reward shaping
  • Bonus: published RL research, RLHF pipeline experience, or multi-agent systems work

Why Join

  • Direct exposure to frontier-lab-scale RL and alignment problems
  • Work alongside top ML research and engineering talent
  • High-ownership role with real technical depth

RoundInterview FocusKey Areas to Evaluate

1st Round

Introduction & Experience

Candidate background, current work, domain expertise, key projects, technical contributions, and understanding of the company/role

2nd Round

Hands-on Coding – Agentic AI

Live/on-call coding, problem-solving ability, coding fundamentals, agentic AI use cases, system implementation, and practical engineering skills

3rd Round

RL & Model Training – Deep Dive

Reinforcement Learning concepts, model training, LLM fine-tuning, post-training techniques, RL fine-tuning, and depth of hands-on experience

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