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OpenTrain

SWE Bench Engineer (C#) Code Evaluation

You will evaluate open-source software repositories to help measure how well large language models handle real bug-fixing tasks. The work combines software engineering, test review, environment setup, and hands-on code evaluation.

Field
Software & coding
Where
Argentina, Belize, Bolivia, Brazil, Chile, Colombia +17 more
Commitment
part time
Hours
up to 20/week
Posted
today

Pay data for your profession: Software engineer AI trainer jobs

How this pay compares

The title points to rating and reviewing ai output: judging a model's answers or code against guidelines, such as which of two is better or whether one is correct and safe. What each kind of AI training work pays

Among platforms with 10 or more priced software & coding roles, Mercor has the highest median ($88/hr across 18 roles) and OpenTrain AI the lowest ($65/hr across 107).

OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one today.

Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.

Open software & coding roles on each platform

The same kind of work, priced on every platform we track, with the best-paid open role on each.

“Up to” rows list only ceilings, so their median is a maximum, not comparable with the range midpoints above them.

All 251 open software & coding roles →

The full listing

As posted on OpenTrain AI. See the original

The work

You will evaluate open-source software repositories to help measure how well large language models handle real bug-fixing tasks. The work combines software engineering, test review, environment setup, and hands-on code evaluation.

  • Analyze and triage issues across open-source libraries.
  • Configure repositories and development environments, including Docker-based setups.
  • Review unit-test coverage and assess overall test quality.
  • Run and modify real C# or other codebases locally.
  • Evaluate how well large language models solve software bugs.
  • Work with researchers to identify repositories and issues that are difficult for AI models.

What it pays and takes

This is a remote contractor assignment for professionals located in Latin America. The contract lasts four weeks and requires at least 20 hours per week, including four hours of overlap with Pacific Time.

  • Pay: $25 per label.
  • Location: Open to candidates in listed Latin American countries.
  • Schedule: At least 20 hours per week.
  • Contract length: Four weeks.
  • Time overlap: Four hours with Pacific Time.
  • Experience: At least three years of software engineering experience.
  • Technical skills: Strong C# or C++ experience, plus Git, Docker, and basic software pipeline setup.
  • Codebase skills: Ability to navigate, run, modify, and test complex real-world projects locally.
  • Language: Professional fluency in English.
  • Helpful background: Open-source contribution or evaluation experience.
  • Additional advantages: LLM research or evaluation experience, or experience with developer tools and automation agents.

How it works

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI training work

AI training work uses human judgment to improve how artificial intelligence systems perform. In this role, your software engineering experience helps assess whether AI models can understand, modify, and test real code.

From applying to your first payment on OpenTrain AI

  1. 1

    Create a profile

    Create a free OpenTrain profile with your domains, languages and hourly rate.

  2. 2

    Apply

    Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.

  3. 3

    Funded milestones

    The client funds each milestone before work starts.

  4. 4

    First payment

    OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.

Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts

Full OpenTrain AI profile: watch-outs and the public record →

Pay history

OpenTrain AI has listed this role at $25 per task since Nov 11, 2026 with no change.

Across OpenTrain AI's software & coding roles, the median listed pay was $65/hr on Nov 1, 2026 (72 roles) and is $65/hr as of Nov 11, 2026 (107 roles).

What workers report about OpenTrain AI

Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.

Other software & coding roles

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