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Alignerr
Senior Machine Learning Expert

Senior Machine Learning Expert

Remote

Cambridge, United kingdom

$ 80 /hour

Senior

Freelance

26-01-2026

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Skills

Decision-making Research Training Machine Learning Autonomy Organization

Job Specifications

Senior Machine Learning Engineer - AI Data Trainer

Location: Remote

About The Job

At Alignerr, we partner with the world’s leading AI research teams and labs to build and train cutting-edge AI models.

This project is about capturing how an LLM reasons and takes actions step by step to solve real tasks. Annotators write clear, structured traces that show planning, tool use, and decision making, creating data that trains models to reason more reliably in real world scenarios.

Organization: Alignerr Position: Senior Machine Learning Engineer - AI Data Trainer Type: Hourly Contract Compensation: $60–$80 /hour Location: Remote Commitment: 10–40 hours/week

What You’ll Do

Lead the authorship of complex, high-fidelity reasoning traces for sophisticated technical tasks.
Mentor and review structured traces to ensure optimal planning and tool-use documentation.
Design data strategies that help LLMs navigate intricate real-world decision-making scenarios.

Requirements

Significant experience in Machine Learning or related technical fields, with a focus on model reasoning.
Proven ability to decompose complex problems into clear, logical, and documented steps.
Experience with advanced LLM evaluation and training methodologies.

Preferred

Prior experience with data annotation, data quality, or evaluation systems.
Top-tier Kaggle competition results (e.g., Grandmaster/Master level), demonstrating a deep understanding of model performance and feature engineering.

Why Join Us

Competitive pay and flexible remote work.
Collaborate with a team working on cutting-edge AI projects.
Exposure to advanced LLMs and how they’re trained.
Freelance perks: autonomy, flexibility, and global collaboration.
Potential for contract extension.

Application Process (Takes 15-20 min)

Submit your resume
Complete a short screening
Project matching and onboarding

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

About the Company

We're looking for experts to help train better AI. At Alignerr, we offer paid, flexible projects for writers, coders, and subject matter experts to refine and align advanced artificial intelligence. Work when you want, where you want. Apply today at Alignerr.com or through our open Job Postings. Know more