Senior Machine Learning Expert (AI Training)
What if your deep understanding of machine learning could directly shape how the next generation of AI systems reason through complex problems? We're looking for Senior Machine Learning Experts to author high-fidelity reasoning traces — the structured, step-by-step decision pathways that teach large language models how to think, plan, and act reliably in the real world.
This is a fully remote, flexible contract role built for senior ML practitioners who want meaningful, intellectually stimulating work on the frontier of AI development.
Organization: Alignerr
Type: Hourly Contract
Location: Remote
Commitment: 10–40 hours/week
What You’ll Do
Author complex, high-fidelity reasoning traces that capture how an LLM should plan, use tools, and make decisions across sophisticated technical scenarios
Design and document structured decision pathways — showing each reasoning step clearly and logically from problem to solution
Review and mentor reasoning trace work to ensure planning quality, tool-use documentation, and decision logic meet high standards
Develop data strategies that help LLMs navigate intricate, real-world reasoning challenges
Contribute directly to training data that improves model reliability and decision-making at scale
Who You Are
Experienced in Machine Learning, AI research, or a closely related technical field — you've worked at a senior level and it shows
A natural problem decomposer — you can break complex, ambiguous challenges into clear, logical, well-documented steps
Deeply familiar with LLM evaluation and training methodologies
A precise, structured thinker who takes quality seriously and documents decisions with clarity
Self-directed and comfortable working autonomously in a remote environment
Nice to Have
Prior experience with data annotation, data quality pipelines, or AI evaluation systems
Top-tier Kaggle competition results (Grandmaster or Master level) — demonstrating expert-level model understanding and feature engineering
Experience working alongside AI research teams or contributing to foundation model development
Background in reinforcement learning, chain-of-thought prompting, or agent-based AI systems
Why Join Us
Work at the cutting edge of AI — your contributions directly influence how frontier LLMs learn to reason
Collaborate with a global team partnered with the world's leading AI research labs
Fully remote and async — work when and where you do your best thinking
Freelance autonomy with the substance of genuinely impactful, technically demanding work
Potential for ongoing work and contract extension as new projects launch
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