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 world's most advanced AI systems reason, plan, and make decisions? We're looking for Senior Machine Learning Experts to author high-fidelity reasoning traces — the structured, step-by-step records of how an AI thinks through complex real-world tasks.
This isn't annotation work. This is architecture-level thinking applied to one of the hardest problems in AI: teaching models to reason reliably. If you understand how LLMs work under the hood and can decompose sophisticated problems into clear, logical steps, this role was built for you.
This is a fully remote, flexible contract role. Work on your schedule, from anywhere.
Organization: Alignerr
Type: Hourly Contract
Location: Remote
Commitment: 10–40 hours/week
What You'll Do
Author complex, high-fidelity reasoning traces that capture step-by-step planning, tool use, and decision-making for sophisticated technical tasks
Design data strategies that help LLMs navigate intricate real-world scenarios with greater reliability
Review and mentor structured traces to ensure optimal documentation of planning and tool-use sequences
Apply senior-level architectural insight to ensure traces reflect sound, verifiable model decision-making
Collaborate asynchronously with a global team working at the frontier of AI development
Who You Are
Deeply experienced in machine learning, AI systems, or a closely related technical field
Able to decompose complex, multi-step problems into clear, logical, and well-documented processes
Familiar with LLM evaluation methodologies, training pipelines, or model behavior analysis
Naturally rigorous — you think in systems, catch edge cases, and document your reasoning precisely
Comfortable working independently and asynchronously without hand-holding
Nice to Have
Prior experience with data annotation, data quality pipelines, or AI evaluation systems
Top-tier Kaggle results (Grandmaster or Master level) demonstrating elite model performance and feature engineering skills
Experience with RLHF, chain-of-thought prompting, or agent-based LLM frameworks
Background in AI safety, interpretability, or alignment research
Why Join Us
Work directly with leading AI research labs on some of the most consequential problems in the field
Fully remote and flexible — structure your work around your life, not the other way around
Freelance autonomy with the substance of meaningful, high-impact technical work
Contribute to training data that shapes how the next generation of AI models think and reason
Potential for contract extension as new projects launch

Work arrangement
Yes