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Software Engineer, Applied AI - Systems

Mercor · San Francisco

Applied AIonsitemid-level$220k–$500k
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At a glance

Highlights

  • Build backend systems that turn human expertise into frontier model training data.
  • Own services end-to-end from design through production operation and on-call.
  • Scale high-throughput pipelines and job systems as platform volume grows monthly.

What they offer

  • Bi-annual performance bonus structure
  • Generous equity grant vested over 4 years
  • Up to $15k relocation bonus
  • $10K housing bonus if living within 0.5 miles of office
  • $1.5K monthly stipend for meals
  • Free Equinox membership
  • $200 monthly laundry reimbursement
  • $200 monthly personal wellness reimbursement
  • Health, Dental, Vision insurance

Ideal candidate

Backend builder with 2-5 years operating production systems who thrives on ownership, ambiguity, and shipping fast. You care about correctness, reliability, and working in a talent-dense in-person team pushing AI forward.

Requirements

  • 2-5 years of professional backend engineering experience building and operating production systems
  • Strong fundamentals in data structures, algorithms, concurrency, and clear maintainable code
  • Hands-on API design experience with REST, gRPC, or GraphQL including versioning and backward compatibility
  • Solid relational data modeling, indexing, query performance, transactions and safe migrations
  • Familiarity with NoSQL or key-value stores and when to use them
  • Practical distributed systems basics: queues, caching, idempotency, rate limiting and partial failure design
  • Experience with data orchestration and workflow systems like Airflow, Temporal, Dagster
  • Experience running services in production with containers, CI/CD, monitoring and debugging under traffic
  • Comfort with ambiguity and turning loosely defined problems into plans
  • Fluency with modern AI dev tools and excitement for agentic development
  • Clear written and verbal communication with high ownership and bias to shipping
remote policy
In-person 5 days a week

Lab profile

About Mercor

AI data company organizing human expertise to train frontier models for the AI economy.

What they build

  • APEX benchmark family
  • Mercor Enterprise
  • Human expertise training data platform

Known for

  • Massive domain-expert network
  • Frontier model training infrastructure
  • Real-world professional work evaluation

Key facts

  • Millions of domain experts on platform
  • Pays over $4M per day to experts
More about Mercor →
Apply on the lab’s site ↗

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