Mercor
Software Engineer, Frontier Data Products
New York City
Sponsorship not specifiedDetected 50 days ago
PythonDistributed SystemsPostgreSQLAWSTemporalMachine Learning
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About the role
- Frontier AI companies are increasingly bottlenecked on expert judgment and high-quality data workflows.
- These are long-running, stateful systems.
- A single job can stay live for days, interleaving automated steps, model inference, and expert review.
Responsibilities
- Design services and state models for multi-stage workflows that fan out across automated processing and expert reviewers, then reconcile results into a coherent whole
- Build orchestration primitives - retries, failure recovery, idempotency, auditable state transitions - for jobs that run far longer than a request and can be partially redone after the fact
- Build the APIs and tooling that let product, operations, and ML teams operate, debug, and trust these systems at scale
- Own reliability and observability for workflows where a silent failure means a corrupted result, not just a 500
- Working closely with product, operations, and ML teams to translate a tangle of constraints into clean system design
- Owning your systems end-to-end: design, ship, operate, improve
- We partner with leading AI labs and enterprises to provide the human intelligence essential to AI development.
Requirements
- Production backend experience with strong opinions about what ages well and why
- Ability to take ambiguous product, operational, and ML constraints and turn them into a system that is clean and debuggable
Nice to have
- Comfort working in Python on AWS with Postgres
- experience with Temporal or similar workflow engines is a plus
Compensation
- Bi-annual performance bonus structure
Benefits
- Bi-annual performance bonus structure
- Generous equity grant vested over 4 years
- Up to $15k Relocation bonus
- $10K housing bonus (if you live within 0.5 miles of our office)
- $1.5K monthly stipend for meals
- $200 monthly laundry reimbursement
- $200 monthly personal wellness reimbursement
- Health, Dental, Vision insurance
Company info
- Mercor's mission is to organize human intelligence to power the AI economy.
- We're a 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 same infrastructure to Fortune 500 companies:
- helping companies capture how their best people actually work, translating that expertise directly back into agents.
- Mercor is creating a new category of work where expertise powers AI advancement.
- Achieving this requires an ambitious, fast-paced and deeply committed team.
- You'll work alongside researchers, operators, and AI companies at the forefront of shaping the systems that are redefining society.
- Mercor is a profitable Series C company valued at $10 billion.
- We work in-person five days a week in our San Francisco, NYC, or London offices.
This listing is sourced directly from Mercor's careers page and normalized into a canonical job model.