Senior Machine Learning Expert
Posted Today by Alignerr
Negotiable
Undetermined
Remote
United Kingdom
Summary: The Senior Machine Learning Expert role focuses on authoring high-fidelity reasoning traces to enhance the decision-making capabilities of large language models. This fully remote position is designed for senior-level professionals who excel in complex problem-solving and wish to contribute significantly to the development of advanced AI systems. The role involves mentoring, designing workflows, and developing data strategies to improve model performance. Candidates should possess deep expertise in machine learning and a strong ability to communicate technical reasoning clearly.
Key Responsibilities:
- Author complex, high-fidelity reasoning traces that capture how an LLM should plan, reason, and take action step by step across sophisticated technical tasks
- Design and document decision-making workflows that reflect real-world problem-solving — including tool use, multi-step planning, and error recovery
- Review and mentor reasoning trace quality to ensure logical consistency, clarity, and optimal structure
- Develop data strategies that help LLMs navigate intricate, ambiguous, and high-stakes scenarios reliably
- Apply your architectural knowledge of ML systems to produce training data that meaningfully improves model performance
Key Skills:
- Deeply experienced in machine learning, AI research, or a closely related technical field
- Able to decompose complex, multi-step problems into clear, structured, and logical reasoning chains
- Familiar with how large language models are trained, evaluated, and improved
- Sharp, methodical, and precise — you think carefully about edge cases and failure modes
- A strong written communicator who can document technical reasoning in a clear, structured format
- Self-directed and comfortable working independently without close supervision
- Prior experience with data annotation, data quality assurance, or model evaluation pipelines (nice to have)
- Top-tier Kaggle competition results (Grandmaster or Master level) demonstrating advanced understanding of model performance and feature engineering (nice to have)
- Hands-on experience designing or evaluating LLM benchmarks, RLHF datasets, or reasoning datasets (nice to have)
- Background in AI safety, interpretability, or alignment research (nice to have)
Salary (Rate): £60.00/hr
City: undetermined
Country: United Kingdom
Working Arrangements: remote
IR35 Status: undetermined
Seniority Level: Senior
Industry: IT
Senior Machine Learning Expert (AI Training)
About The Role
What if your deep expertise in machine learning could directly determine 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 thought processes that teach large language models how to plan, use tools, and make reliable decisions in the real world. This is a fully remote, flexible contract role built for senior-level ML professionals who thrive on intellectually demanding work and want their expertise to leave a lasting mark on frontier AI.
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, reason, and take action step by step across sophisticated technical tasks
- Design and document decision-making workflows that reflect real-world problem-solving — including tool use, multi-step planning, and error recovery
- Review and mentor reasoning trace quality to ensure logical consistency, clarity, and optimal structure
- Develop data strategies that help LLMs navigate intricate, ambiguous, and high-stakes scenarios reliably
- Apply your architectural knowledge of ML systems to produce training data that meaningfully improves model performance
Who You Are
- Deeply experienced in machine learning, AI research, or a closely related technical field
- Able to decompose complex, multi-step problems into clear, structured, and logical reasoning chains
- Familiar with how large language models are trained, evaluated, and improved
- Sharp, methodical, and precise — you think carefully about edge cases and failure modes
- A strong written communicator who can document technical reasoning in a clear, structured format
- Self-directed and comfortable working independently without close supervision
Nice to Have
- Prior experience with data annotation, data quality assurance, or model evaluation pipelines
- Top-tier Kaggle competition results (Grandmaster or Master level) demonstrating advanced understanding of model performance and feature engineering
- Hands-on experience designing or evaluating LLM benchmarks, RLHF datasets, or reasoning datasets
- Background in AI safety, interpretability, or alignment research
Why Join Us
- Work directly with leading AI research labs on frontier model development
- Fully remote and flexible — work on your own schedule, from anywhere in the world
- Freelance autonomy with access to some of the most consequential AI work happening today
- Gain rare, hands-on exposure to how cutting-edge LLMs are trained and improved at the reasoning level
- Potential for ongoing work and contract extension as new projects launch