Backend Software Engineer, Part-Time AI Coding Tasks - Remote (Worldwide)

• $50–$100 per hour equivalent, paid per accepted task

• 100% remote

• Part-time

• About 15 hours a week, you choose when

OpenTrain AI is hiring for this role.

Bring practical backend engineering experience to paid AI evaluation work. You will inspect code-focused tasks in reproducible environments and turn technical reasoning into clear review notes.

AI training uses human review to judge model examples and explain what strong code behavior looks like. Your notes help improve software-focused AI systems.

The work

- Examine model-produced code against task-specific engineering criteria.

- Reproduce important behavior, check edge cases, document the evidence, and maintain consistent review quality across evaluations.

- Explain why an implementation works or where it needs improvement.

- Debug difficult behavior and suggest useful fixes.

Why this is worth your time

- Earn $50–$100 per hour equivalent for accepted task work.

- Apply backend engineering judgment to varied coding evaluations and real repository contexts.

- Paid, part-time work lets you contribute careful debugging, evidence, and clear technical explanations.

- Fully remote and flexible, no fixed shifts, no commute.

Who this is for

- Professional fluency in English with strong written and technical communication.

- Comfortable building production software in Python, Java, Rust, Go, C++, or TypeScript.

- Strong command of engineering fundamentals, algorithms, and data structures.

- Can diagnose complex systems, fix bugs, and deliver effective optimizations; has refactored and modernized large legacy codebases.

- Has taken substantial features from concept to production.

- Communicates technical reasoning clearly in writing and discussion.

- Prior AI training experience is not required.

- No AI experience needed.

Pay and details

- $50–$100 per hour equivalent, paid per accepted task.

- Part-time, flexible schedule; fully remote, worldwide.

- About 15 hours a week, you choose when.

- Independent-contractor work.

Eligible countries: Algeria, Argentina, Austria, Bahrain, Bangladesh, Belgium, Brazil, Canada, Chile, Colombia, Denmark, Egypt, France, Germany, Ghana, Greece, India, Indonesia, Italy, Japan, Jordan, Kazakhstan, Kenya, Kyrgyzstan, Kuwait, Lebanon, Malaysia, Mexico, Morocco, the Netherlands, Nigeria, Oman, Pakistan, Palestinian Territories, Peru, the Philippines, Portugal, Qatar, Saudi Arabia, Singapore, South Africa, Spain, Sri Lanka, Switzerland, Taiwan, Thailand, Tunisia, the United Arab Emirates, the United Kingdom, the United States, Uzbekistan, and Vietnam.

How to apply

1. Apply on OpenTrain (about two minutes): https://app.opentrain.ai/api/out/cmwc5d1a9007507l5hwmzcmkw?ch=itrecruitment&sub=p_65b8e27ca6a2

2. Complete the application on the hiring platform.

3. If shortlisted, take a conversational AI interview with technical questions and a coding challenge soon after you are invited.

Bring your backend engineering judgment to paid AI evaluation work that helps improve software-focused AI systems.

About OpenTrain AI

OpenTrain AI connects experienced professionals with paid, part-time AI evaluation work. Reviewers assess examples and explain what strong performance looks like, helping improve software-focused AI outputs.

Human reviewers improve software AI by assessing examples and explaining what reliable code behavior looks like. Your careful review can make those systems more useful and reliable.