Senior ML Engineer: LLM Reasoning & AI Training (Remote)

Alignerr Corp.; United States; Remote; AUD 138,000 - 193,000; Full time

Job summary

Alignerr is seeking a Senior Machine Learning Engineer (AI Training) to author complex reasoning traces that guide how large language models think, plan, and decide. This fully remote hourly contract role offers 10–40 hours per week and the freedom to work on your own schedule while contributing to frontier model development.

You will document high-fidelity planning, tool use, and decision-making, and collaborate with AI research teams to maintain quality standards for reasoning data.

Qualifications

• Significant hands-on ML/AI research experience.
• Deep understanding of LLM reasoning, planning, and decision-making.
• Ability to decompose complex problems into clear, logical steps.
• Strong written communication to document thinking clearly.

Responsibilities

• Author complex, high-fidelity reasoning traces for real-world tasks.
• Document step-by-step planning, tool use, and decision-making clearly.
• Design data strategies that help LLMs navigate multi-step problems.
• Review and mentor trace quality to ensure good planning and tool-use docs.
• Collaborate with AI research teams to set quality standards for reasoning data.
• Work independently and asynchronously on your own schedule.

Job description

Alignerr is seeking a Senior Machine Learning Engineer (AI Training) to author complex reasoning traces that guide how large language models think, plan, and decide. This fully remote hourly contract role offers 10–40 hours per week and the freedom to work on your own schedule while contributing to frontier model development.

You will document high-fidelity planning, tool use, and decision-making, and collaborate with AI research teams to maintain quality standards for reasoning data.