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Fullstack Software Engineer, Agent Platform

Mercor· Engineering
Apply on company site
San Francisco$160k - $500kFull-timePosted 2mo ago

About the role

Full Stack Engineer for Mercor's Agent Platform, responsible for both frontend (React/Next.js) and backend services that orchestrate agents, data, and integrations, used by internal users and enterprise clients.

Responsibilities

  • Own the agent platform across the full stack — from the internal- and client-facing React interfaces to the backend APIs and services orchestrating agents, workflows, and integrations.
  • Enable hundreds of internal users and dozens of enterprise clients — ship the features, reliability, and polish that make the platform their daily driver and a confident live demo.
  • Build the foundational layer other teams depend on to stand up new agent use cases, task formats, and client configurations quickly and without rework.
  • Ship high-leverage product features that raise both internal productivity and the customer-facing quality of the platform.
  • Translate ambiguous requirements into well-scoped technical solutions through close collaboration with Applied AI researchers, product, design, and operations.

Qualifications

  • 2+ years of fullstack engineering experience building and shipping production software.
  • Deep proficiency in JavaScript/TypeScript (React + Next.js) and a strong grasp of frontend architecture, state management, and design patterns.
  • Solid backend experience in Python and/or Node.js — designing and building relational databases, REST APIs, and async task infrastructure.
  • Strong design sense and empathy for end-users; you hold a high bar for usability.
  • Experience with complex, high-throughput systems — pipelines, large data volumes, or multi-tenant architectures.
  • High ownership mindset; able to navigate ambiguity and drive projects from design through delivery.
  • Strong communication skills and ability to articulate technical and product tradeoffs clearly.

Skills

Required:JavaScript/TypeScriptReactNext.jsPython
Nice to have:Node.js

Benefits

  • Bi-annual performance bonus structure
  • Generous equity grant vested over 4 years
  • Up to $15k Relocation bonus
  • $10K proximity bonus (if you live within 0.5 miles of our office)
  • $1.5K monthly stipend for meals
  • Free Equinox membership
  • $200 monthly laundry reimbursement
  • $200 monthly personal wellness reimbursement
  • Health, Dental, Vision insurance
Last updated Sep 16, 2026. Interested? Apply on the company site.

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