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Mercor

Software Engineer, Backend

San Francisco$200k–$500kfulltimemidAdded today

About this role

Join Mercor as a backend technical leader to architect and own the shared systems powering a network of 30,000+ AI experts. This hands-on role involves defining long-term backend strategy, driving high-stakes design decisions, and mentoring senior engineers while maintaining deep coding involvement across core services, data models, and cross-product infrastructure.

What you'll do

  • Own architecture of shared backend systems, core services, data models, and cross-product infrastructure
  • Define and drive long-term technical strategy for backend architecture across the organization
  • Design systems for scale and reliability while leading high-stakes technical design reviews
  • Identify and eliminate architectural debt through complex cross-team migrations
  • Establish backend engineering standards and best practices adopted organization-wide
  • Mentor senior engineers and mentor while staying hands-on with production code

What they're looking for

  • Backend systems architecture and distributed systems design
  • Service architecture, data modeling, and API design at scale
  • Technical leadership and cross-team alignment without direct authority
  • Production migration and architectural refactoring experience
  • Modern AI development tools (Cursor, Claude, GitHub Copilot)
  • Technical communication and tradeoff analysis for mixed audiences
  • Team mentorship and engineering culture building
  • High ownership and pragmatic shipping mindset
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Mercor

Mercor builds a marketplace platform connecting expert talent to AI opportunities, supported by identity infrastructure, matching algorithms, and internal tools for data management. The company is hiring Software Engineers, Machine Learning Engineers, Fullstack Engineers, and Security Engineers to develop backend systems, ML models, cloud infrastructure, and distributed platforms.

Website
mercor.io
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Likely interview questions

  • Walk us through a major architectural decision you made that still holds up well years later. What would you do differently knowing what you know now?
  • Tell us about a complex production migration you led. How did you manage risk while keeping the business moving?
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