Senior Machine Learning Expert

Senior Machine Learning Expert (AI Training)
About The Role
What if your deep expertise in machine learning could directly shape how the next generation of AI reasons through complex problems? We're looking for Senior Machine Learning Experts to author high-fidelity reasoning traces that teach large language models how to plan, think, and make decisions — step by step.
This is a fully remote, flexible contract role built for experienced ML practitioners who want meaningful, intellectually engaging work at 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 tasks
Design structured traces that document each step of the problem-solving process — from initial planning through execution and self-correction
Develop data strategies that help LLMs navigate intricate, real-world decision-making scenarios with greater reliability
Review and mentor reasoning trace quality to ensure planning, tool use, and logic are clearly and accurately documented
Collaborate with leading AI research teams to align your outputs with training methodologies that push the boundaries of model performance
Who You Are
Deeply experienced in machine learning, AI research, or a closely related technical field
Skilled at decomposing complex problems into clear, logical, well-documented reasoning steps
Familiar with how large language models work — including their strengths, failure modes, and training dynamics
Rigorous and detail-oriented, with a strong instinct for what makes AI reasoning reliable versus brittle
Comfortable working independently and producing structured written outputs at a high standard
Experience with advanced LLM evaluation or training methodologies is a strong asset
Nice to Have
Prior experience with data annotation, data quality assurance, or model evaluation systems
Top-tier Kaggle competition results (Grandmaster or Master level) demonstrating elite-level understanding of model performance and feature engineering
Background in applied ML research, AI safety, or RLHF-adjacent workflows
Familiarity with agent-based reasoning frameworks or tool-augmented LLM architectures
Why Join Us
Work at the cutting edge of AI — your contributions directly influence how frontier models learn to reason
Collaborate with world-class AI research labs and teams building the most advanced models in existence
Fully remote and async — work when and where it suits you, with no fixed schedule
Freelance autonomy with the substance of genuinely impactful, intellectually challenging work
Exposure to advanced LLM training pipelines and the inner workings of state-of-the-art AI systems
Potential for ongoing work and contract extension as new projects launch

Work arrangement
Yes