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Mercor · Software & coding

Frontend Engineer Talent Network - review AI outputs in your specialty

Listed on Mercor as “Frontend Engineer Talent Network”

$70-$150/hrRemoteContractPaid in USD
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How this rate compares

This listing

$70–$150 per hour

Typical in Software & coding

$70–$120 per hour

Within the typical range

Typical: the middle of the lowest and highest rates posted by 38 listings in this category on Seoulstart, in US dollars.

What this actually is

You review AI-generated code, rank model outputs against each other, write prompts that test edge cases, and provide expert feedback that gets used to train coding models. Not shipping production software. The platform title (Frontend Engineer Talent Network) reflects the rate band and the expertise required, not the day-to-day work.

How Mercor picks people

  1. Upload your CV and answer the role's written questions.
  2. Do a video interview with Mercor's AI interviewer. Most take about 20 minutes, in English unless the role says otherwise.
  3. Some roles add a skills test. A test you pass once counts for similar roles.
  4. The project team reviews your results and sends offers to the people it picks.

Before you start

  • Take Mercor's free practice interview first. It does not count toward any application.
  • Use Chrome on a computer with a camera and microphone, in a quiet room.
  • You can retake an official interview up to 3 times, but hiring teams see how many times you retook it.

Not every applicant gets an offer. Prepare well for the interview.

How to prepare for the Mercor interview

Source: Mercor's help pages. talent.docs.mercor.com

Can you do this on your visa?

F-2 / F-4 / F-5 / F-6: open. E-1 to E-7: needs concurrent-employment permit. D-2 / D-4 students: S-3 permit, 20 hr/week cap. D-10 / D-8: case by case.

Korean tax on USD income

First 5 years in Korea: foreign-source income only taxed if remitted into Korea. After year 5: worldwide income. Full tax guide.

Original posting from Mercor

About Mercor’s talent network

Join our Frontend Engineer Expert Network to connect with leading AI labs and companies seeking your expertise. This is an open application for future contract opportunities that match your background and interests.

Once you complete your profile and pass our AI interview, you'll be eligible for relevant projects as they become available. We match experts to opportunities on a rolling basis.

About Mercor projects

Experts in our network contribute to:

  • Training and evaluating AI models in Frontend Engineering
  • Creating tasks and deliverables based on real-world scenarios
  • Providing domain-specific feedback to advance frontier AI research

Projects vary in scope and duration, with typical commitments ranging from 15-30 hours per week.

What we're looking for:

  • Professional experience in modern JavaScript frameworks (React/Vue/Angular), responsive UI development (HTML/CSS), state management & performance optimization
  • Strong communication skills
  • Ability to work independently in a remote environment

How it works:

This is not a specific job posting. By applying, you're joining our Frontend Engineer talent network.

  • Apply once: Complete your profile by uploading your resume and confirming your work location.
  • Get verified: We review your credentials and approve qualified experts.
  • Stay connected: When projects need Frontend Engineering expertise, we match you to opportunities based on your expertise and project needs.
  • Start working: Be invited to interview for opportunities that align with your schedule and interests. You will earn competitive rates while working remotely on your own schedule.

Quoted from Mercor's public listing on 2026-11-13. We don't edit platform copy; honest framing is in the title and the “what this actually is” block above.

Mercor pays MantaWork a fee if it hires you through this link. Your pay is the same.