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OpenTrain

SWE-Bench C++ Evaluation Engineer

You will evaluate C++ code produced or reviewed by language models using public GitHub repositories, issue reports, and unit-test codebases. You will apply project guidelines, document evidence for your decisions, and provide clear feedback that can improve model behavior.

Field
Software & coding
Where
Argentina, Bangladesh, Belize, Bolivia, Brazil, Chile +24 more
Commitment
part time
Hours
up to 20/week
Posted
7 days ago

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 7 days ago.

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.

PlatformOpenMedianBest-paid open role
Mercor20$88/hrLegacy Codebase Migration Expert$200/hr
micro125$75/hrStrategic Project Lead, Coding/SWE$300k-500k/yr
Alignerr73$70/hrDevOps / IaC Engineer$90-120/hr
OpenTrain AIthis role123$65/hrSoftware Engineer, AI Code Evaluation$200/hr
Handshake AI10up to $90/hrSenior Software Engineer - AI Data (US)Up to $150/hr

“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 C++ code produced or reviewed by language models using public GitHub repositories, issue reports, and unit-test codebases. You will apply project guidelines, document evidence for your decisions, and provide clear feedback that can improve model behavior.

The work also involves navigating complex codebases, running projects locally, modifying code, and testing real-world software projects.

  • Evaluate model outputs and apply project rubrics.
  • Review source materials, GitHub issues, code, and model outputs against project guidelines.
  • Explain judgments clearly with evidence from the code or tests.
  • Maintain consistent quality across repeated evaluation tasks.
  • Run, modify, and test C++ projects locally.

What it pays and takes

The project requires at least two years of overall experience and strong practical C++ skills.

  • Pay: $25 per label.
  • Time: 20+ hours per week.
  • Schedule: Four hours of overlap with PST is required.
  • Language: Fluent English.
  • Location: Open to candidates in Argentina, Bangladesh, Belize, Bolivia, Brazil, Chile, Colombia, Costa Rica, the Dominican Republic, Ecuador, Egypt, El Salvador, Ghana, Guatemala, Guyana, Haiti, Honduras, India, Mexico, Nicaragua, Nigeria, Pakistan, Panama, Paraguay, Peru, Puerto Rico, Suriname, Turkey, Uruguay, and Venezuela.
  • Required: Strong C++ experience, plus proficiency with Git, Docker, and basic software pipeline setup.
  • Required: Ability to understand and navigate complex codebases.
  • Helpful: Experience with open-source projects, LLM research or evaluation, developer tools, or 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 is the human work behind systems that learn from examples, including code reviews, model evaluations, and written feedback. People with strong software knowledge help make these systems more accurate and useful by applying careful judgment to real-world technical tasks.

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 4, 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

All 251 software & coding roles →