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Mercor · Software & coding

Software Engineer (AI-Native Platform & Integrations)

Listed on Mercor as “Software Engineer (AI-Native Platform & Integrations)”

$70-$110/hrRemoteContractPaid in USD
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How this rate compares

This listing

$70–$110 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 (Software Engineer (AI-Native Platform & Integrations)) 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

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.

Role Overview

We’re building an AI-native platform that replaces spreadsheet-driven operations with real-time dashboards and agentic workflows. This engineer will own core product delivery end-to-end: platform foundations, integrations, analytics surfaces, and the pilot launch.

What you’ll build

  • AI-native platform (core entities, workflows, permissions, multi-tenant foundations)
  • Omni-tool integration layer (connectors to common tools; event ingestion; sync; actions)
  • Real-time analytics dashboard (live metrics, drill-downs, exports)
  • MCP-compatible agentic integration architecture (tool registry, permissions, runtime, observability)
  • Pilot launch support with hands-on technical execution (shipping, debugging, iteration with real users)

**Responsibilities**

  • Ship production features across backend + frontend.
  • Design and implement a scalable integrations framework
  • Build real-time analytics experiences
  • Architect an agentic tool-use layer compatible with MCP-style patterns
  • Set up strong engineering hygiene: testing, observability, on-call readiness for the pilot.
  • Iterate quickly and pragmatically.

**What we’re looking for**

  • Strong, practical software engineering skills; you can ship end-to-end and unblock yourself.
  • Experience building SaaS products with APIs, data models, and production constraints.
  • Deep comfort with integrations (OAuth2, webhooks, API pagination, rate limiting, sync semantics).
  • “Vibe coding” mindset: you use AI tools effectively (Copilot/ChatGPT/etc.) to move fast without sacrificing correctness-good taste around tests, interfaces, and guardrails.
  • Familiarity with MCP-style tool interfaces and/or building tool servers.
  • Clear communicator who can explain tradeoffs and keep stakeholders aligned.

About Cincinnatus

Cincinnatus is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for full-time and long-term contingent roles. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

Roles hired through Cincinnatus are not project-based or freelance engagements. They are structured, role-based positions that typically involve full-time or fixed-term commitments, close collaboration with a client's internal teams, and integration into standard enterprise workflows.

Cincinnatus is a legal entity separate from Mercor. While opportunities may be discovered through Mercor's platform, employment, onboarding, payroll, and benefits for these roles are administered by Cincinnatus.

Equal Employment Opportunity

Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Cincinnatus is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans throughout the job application process.

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.