Software Engineer - Multilingual Bug-Fix

Mercor is seeking talented Software Engineers with experience working across multiple programming languages and a strong command of real-world debugging workflows. In this role, you will analyze actual GitHub issues and pull requests to author high-quality bug-fix tasks that reflect the complexity and realism of modern software development.

Each task will be drawn from authentic development activity and will require a clear demonstration of a semantic bug, its minimal reproducible context, and a valid test-backed resolution. These tasks will support both evaluation and training of AI systems, particularly those designed to reason about and fix code across diverse language ecosystems.

You are a good fit if you:

• Have proficiency in at least 1 of the following languages: C, C++, Go, Java, JavaScript, TypeScript, PHP, Ruby, Rust

• Experience contributing to or maintaining open-source projects involving real-world bug fixes

• Have experience with large-scale codebases and collaborative development via Git/GitHub

• Have demonstrated expertise in debugging, testing, and patch-based software fixes

• Have familiarity with CI/CD pipelines, unit and integration testing practices

• Have ability to read, interpret, and triage real-world issue reports and pull requests

• Are based out of the US, Canada, UK, Australia, NZ

Role Highlights

• Flexible workload: 10–20 hours per week, with potential to increase to 40 hours.

Role Start Date

• This role will begin in mid to late-August with applications reviewed on a rolling basis.

Apply today and redefine digital creativity alongside groundbreaking AI technologies!

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.