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FitNext Co.

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Senior Software Engineer - Python / TypeScript

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Summary

3-month fully remote contract for a senior engineer on an AI/LLM project: designing evaluation rubrics, reviewing preference data quality, and building data pipelines in Python or TypeScript/JavaScript/Golang. Pays $100/hour for 20+ hours/week with at least 4 hours of PST overlap.

3-Month Contract | Senior Software Engineer - Python / TypeScript


Location: USA or Canada

Type: Temporary Contract — 3 months

Work Model: Fully Remote

Compensation: $100/hour

Availability: 20+ hours/week, with at least 4 hours of overlap with PST

Start Date: Immediate


About the Opportunity

We’re looking for a Senior Software Engineer to join a cutting-edge AI/LLM project, combining software engineering with data evaluation and quality processes for AI models.

We’re looking for someone with strong experience in Python or TypeScript/JavaScript/Golang, along with hands-on experience with preference data, rubric creation, or data/model evaluation.


What You’ll Do

  • Design, refine, and improve rubrics and evaluation criteria for preference data.
  • Review and evaluate data while maintaining a high quality bar.
  • Build and maintain pipelines and infrastructure supporting data generation, collection, and evaluation.
  • Identify subtle issues and ensure high-quality data.
  • Turn technical findings into clear documentation, recommendations, and updates.
  • Collaborate closely with engineers and researchers to turn qualitative judgment into scalable processes.


Requirements

  • 5+ years of experience with Python, particularly pipelines and infrastructure, or TypeScript / JavaScript / Golang.
  • Hands-on experience with preference data and/or rubric creation.
  • Experience working with large codebases is a plus.
  • Strong written and verbal communication skills.
  • Ability to communicate complex technical work clearly and concisely.
  • Strong attention to quality and detail.
  • Experience at Tier 1 technology companies and/or universities is preferred.
  • LinkedIn profile required and must be included on the resume.


Selection Process

  1. AI Interview
  2. Coding Challenge
  3. 30-minute interview focused on technical and cultural fit.



Contract Details

  • 3-month temporary contract
  • $100/hour
  • Fully remote
  • Minimum 20 hours/week
  • At least 4 hours of overlap with PST
  • Expected start: next week
  • Contractor position; no traditional employee benefits such as medical coverage or paid leave.


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