Senior Machine Learning Engineer (AI Data Trainer)
About The Role
What if your deep knowledge of machine learning could directly shape how the world's most advanced AI systems reason, plan, and make decisions? We're looking for Senior Machine Learning Engineers to author high-fidelity reasoning traces — the structured, step-by-step records of how an AI thinks through complex real-world problems.
This is frontier work. The data you create will be used to train next-generation LLMs to reason more reliably, use tools more effectively, and make better decisions at scale. If you've spent years thinking deeply about model behavior, problem decomposition, and intelligent system design — this is where that expertise makes a direct, lasting impact.
This is a fully remote, flexible contract role. You set your schedule and work at your own pace.
Author complex, high-fidelity reasoning traces that capture how an LLM should plan, reason, and act across sophisticated technical tasks
Design structured step-by-step decision paths that reflect expert-level thinking — including tool use, branching logic, and error recovery
Review and mentor other contributors' traces to ensure quality, consistency, and alignment with training goals
Develop data strategies that help LLMs navigate intricate, real-world scenarios with greater reliability
Apply senior-level ML insights to ensure traces accurately reflect how strong reasoning systems operate
Who You Are
Experienced in machine learning, AI systems, or a closely related technical field — with a genuine focus on model reasoning and decision-making
Skilled at decomposing complex, ambiguous problems into clear, logical, well-documented steps
Deeply familiar with LLM evaluation and training methodologies — you understand what valuable reasoning looks like and why it matters
A precise, structured thinker who can translate expert intuiti
📌 Senior Machine Learning Engineer (India)
🏢 Alignerr
📍 India
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