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Salary
≈ $190k – $328k per year (Estimated)
Location
Remote (likely United States)
Seniority
Senior · 5+ years exp
Employment
Full-Time

First seen by Alion on Oct 29, 2026. Mercor scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Mercor is an American company founded in 2023 by three Thiel Fellows that recruits and pays domain experts to produce the training and evaluation data frontier artificial intelligence labs need. Its business shifted quickly from general talent matching to expert data work: as models became competent at ordinary tasks, the scarce input became judgement from practising doctors, lawyers, bankers and engineers, and Mercor sources, vets and pays those people at very large scale. Headquartered in San Francisco and valued in the billions within two years of founding, it pays out enormous sums annually to a contributor network rather than employing them.

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: Senior Software Engineer, Backend (Node.js, TypeScript, Rust)

Type:

Contract

Compensation:

$50-$80/hour

Location:

Remote

Commitment:

40 hours/week

Role Responsibilities

  • Lead delivery of scoped features through collaborative engineering teams, aligning work with platform and system objectives.
  • Design, develop, test, and maintain high-quality services in Node.js, TypeScript, and Rust across the full software lifecycle and CI/CD.
  • Build and optimize server-to-server integrations and API layers (REST and GraphQL) for high-traffic, customer-facing applications.
  • Integrate AI/ML capabilities into product services and use generative AI tools to enhance engineering productivity.
  • Contribute to solution design, conduct code reviews, and apply best practices for scalable, secure, and maintainable systems.
  • Monitor application performance, support defect resolution, and drive continuous improvement.

Qualifications

Must-Have

  • 5+ years of professional software engineering experience or a Bachelor's degree in Computer Science and 3+ years of experience.

  • Hands-on production coding experience in Node.js and TypeScript on the backend.
  • Experience with Rust in production services or performance-critical modules.
  • Strong web fundamentals: HTTP semantics, cookies, headers, caching, sessions, and server-to-server communication patterns.
  • Experience building or operating high-traffic, consumer-facing web platforms.
  • Ability to engage reliably for at least 40 hours/week during weekdays.
  • Excellent written and verbal communication skills.

Preferred

  • Experience with GraphQL on Node.js (schema design, resolvers, federation).
  • Familiarity with web accessibility standards.

Application Process (Takes 20-30 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

Resources & Support

  • For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
  • For any help or support, reach out to: [email protected]

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

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