Software Engineer, Frontier Data Products at Mercor | NY, US | Rezi

Software Engineer, Frontier Data Products at Mercor

Software Engineer, Frontier Data Products

Mercor · NY, US

3 weeks ago

Software Engineer, Frontier Data Products

Mercor · NY, US

a month ago
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About the Role

This team builds the production systems that capture, coordinate, and validate expert judgment and high-quality data workflows at scale, directly connecting customer requests to shipped outputs. These are long-running, stateful systems where state must tolerate late mutation and correctness must survive disagreements between humans and models. This is a backend systems and orchestration problem where early engineers will shape the architecture.

Responsibilities

  • Design services and state models for multi-stage workflows involving automated processing and expert reviewers.
  • Build orchestration primitives like retries, failure recovery, idempotency, and auditable state transitions for long-running jobs.
  • Integrate model inference into production workflows while maintaining debuggability and human oversight.
  • Build APIs and tooling for product, operations, and ML teams to operate, debug, and trust these systems.
  • Own reliability and observability for workflows where silent failures can corrupt results.

Requirements

  • Production backend experience with strong opinions on system longevity.
  • Sharp instincts for system design, service boundaries, and complexity management.
  • Fluency with distributed systems toolkit: async workflows, queues, idempotency, retries, and long-running jobs.
  • Ability to translate ambiguous product, operational, and ML constraints into clean, debuggable systems.
  • Comfort working in Python on AWS with Postgres.
  • Experience with Temporal or similar workflow engines is a plus.
  • Takes debugging frustration personally and is motivated to fix it.
  • Has strong, defensible opinions on state management.
  • Moves fast but prioritizes reliability.
  • Wants work to have a short, visible line to customer outcomes.

Skills

  • Python
  • AWS
  • Postgres
  • Distributed systems
  • Async workflows
  • Queues
  • Idempotency
  • Retries
  • Long-running jobs
  • Workflow engines (e.g., Temporal)

Location

  • San Francisco
  • NYC
  • London

Work Type

  • In-person
  • Full-time

Experience Level

  • Backend experience

Benefits

  • Bi-annual performance bonus structure
  • Generous equity grant vested over 4 years
  • $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

About the Company

  • Mercor's mission is to organize human intelligence to power the AI economy.
  • Leading AI data company building the layer between human expertise and frontier models.
  • Millions of domain experts on the platform are paid over $4 million per day to train frontier AI models.
  • Mercor's APEX benchmark family measures AI's real-world impact on professional work.
  • Mercor Enterprise brings this infrastructure to Fortune 500 companies to capture how their best people work and translate that expertise into agents.
  • Creating a new category of work where expertise powers AI advancement.
  • Requires an ambitious, fast-paced, and deeply committed team.
  • Work alongside researchers, operators, and AI companies at the forefront of shaping systems redefining society.
  • Profitable Series C company valued at $10 billion.
  • Defining the future of work.
  • Partners with leading AI labs and enterprises to provide human intelligence for AI development.
  • Vast talent network trains frontier AI models.
  • More than 30,000 experts in the network collectively earn over $2 million a day.
  • Work in-person five days a week in San Francisco, NYC, or London offices.
  • Work in-person five days a week in new San Francisco headquarters.