Description
Freelance North America is hiring a remote Senior Software Engineer - AI Evaluation / Coding Agents (full-time, senior). The role is open to people living in North and South America. The pay is $100 – $150 / hr (USD per hour). Working hours: 20-40 hours/week, with at least 6 hours of Pacific Time overlap/day. You apply directly on the employer's site.
About the role
We’re looking for experienced, hands-on software engineers to help evaluate and improve AI coding models.
Rather than primarily building production applications, you’ll work with coding agents across real-world repositories and assess the quality of their work. You’ll review generated code and agent behavior, determine whether solutions are technically correct, identify failure modes, and create the evaluation signals and feedback used to improve model performance.
Think of the coding agent as another engineer whose work you’re reviewing: Can it understand the task? Did it choose the right approach? Is the resulting code correct, robust, and maintainable? Can you explain precisely where it succeeded or failed?
What you'll do
- Design, refine, and iterate on rubrics and evaluation criteria for preference data
- Review and label data with a high quality bar, catching subtle issues others might overlook
- Build and maintain pipelines and infrastructure supporting data generation, collection, and evaluation workflows
- Synthesize findings from data work into clear write-ups, updates, and recommendations for the team
- Collaborate closely with researchers and engineers to translate qualitative judgment into scalable processes
Experience
5+ years of hands-on software engineering experience Strong proficiency in Python, TypeScript/JavaScript, Go, or another major production language Experience working in substantial real-world codebases Strong code-review skills and technical judgment Ability to clearly explain why an implementation is correct, incorrect, or could be improved Strong written communication Experience using modern LLMs or AI coding tools Experience with LLM evaluation, coding agents, RLHF, preference data, rubric design, or post-training is a plus, but not required.
Skills
- Python
- Typescript
- JavaScript
- Go
- Java
- GitHub
- CI/CD
- Open Source
- LLM
- Code Reviews
- Code Analysis
Who can apply
This job is open to people living in North and South America. Applicants elsewhere can't be hired for this role. Working hours: 20-40 hours/week, with at least 6 hours of Pacific Time overlap/day.
How to apply
- 1Check that you live where this job hires (americas only) and can work 20-40 hours/week, with at least 6 hours of pacific time overlap/day.
- 2Click “Apply Now” to open Freelance North America's application page.
- 3Apply soon: listings close when the role is filled.
Interested in this role?
Apply directly to Freelance North America. It's free, and HRjobs never charges candidates.