Senior Software Engineer – Open Source

Company: Mercor
Apply for the Senior Software Engineer – Open Source
Location: London
Job Description:

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 Type: Contract Compensation: $120/hour Location: Remote

Role Responsibilities

  • Apply open-source engineering experience to real software engineering work.
  • Contribute to AI model training, evaluation, and improvement.
  • Collaborate with AI research teams to enhance model outputs and training data quality.
  • Work independently and asynchronously to meet project deadlines.
  • Leverage technical skills and tools to drive impactful solutions.

Qualifications

Must-Have

  • Senior, Staff, or Principal Software Engineer experience.
  • Active contribution to open-source projects with recent commits.
  • Maintenance or contribution to projects with 100+ GitHub stars or clear package usage.

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: support@mercor.com

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

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Posted: October 25th, 2026