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SWE Bench Engineer (Java LLM Code Evaluation)

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Job details

Pay

$25 USD/label

Engagement

Contract, part-time

Location

Remote

23 countries

Posted

Nov 10, 2026

OpenTrain on Trustpilot

The work

You will assess Java software projects and help measure how well language models handle real bug-fixing tasks. The work involves running, changing, testing, and reviewing open-source code locally.

  • Analyze and triage issues in open-source Java libraries.
  • Set up repositories, Docker-based development environments, and basic software pipelines.
  • Review unit-test coverage and overall code quality.
  • Modify and run projects locally to evaluate LLM performance on bug-fixing tasks.
  • Find repositories and issues that create meaningful evaluation challenges for language models.
  • Work with researchers and, when needed, guide junior engineers on related projects.

Requirements

This is a remote contractor assignment for freelancers in Latin America. It is a one-month contract, and the structured time commitment is 20 or more hours per week.

  • Schedule: 20 or more hours per week, including four hours of overlap with PST.
  • Experience: At least three years of overall software engineering experience.
  • Technical skills: Strong hands-on Java experience, plus proficiency with Git, Docker, and basic software pipeline setup.
  • You must be comfortable navigating complex codebases and running, modifying, and testing real-world projects locally.
  • Language: Professional fluency in English.
  • Skills: Java

Open to applicants in

  • Argentina
  • Belize
  • Bolivia
  • Brazil
  • Chile
  • Colombia
  • Costa Rica
  • Dominican Republic
  • Ecuador
  • El Salvador
  • Guatemala
  • Guyana
  • Haiti
  • Honduras
  • Mexico
  • Nicaragua
  • Panama
  • Paraguay
  • Peru
  • Puerto Rico
  • Suriname
  • Uruguay
  • Venezuela

Preferred

  • Helpful experience includes contributing to or evaluating open-source projects, participating in LLM research or evaluation, and building or testing developer tools or automation agents.

How to apply

  1. Press Apply now. You create a free OpenTrain account and add your resume.
  2. Finish your application on the hiring company's site. The company decides who it hires, so it runs its own form.

Job ID: cmwb4s6qu00q507jpni7pl58u

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