Data Platform Engineer at Mercor (San Francisco, CA)
Mercor· San Francisco, CA· $130k–$500k·
Role details
Job description
About Mercor
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. What This Person Owns The infrastructure every data-driven team at Mercor runs on: Snowflake, Fivetran, Airflow, and Hex. You own how data is organized, who can access what, what it costs to run, and how reliably it operates. This is a foundational hire on a new Data Platform team, you'll help set the standards other engineers build against. What They Do Day-to-Day
- Bring structure and clear ownership to how data is organized in Snowflake across projects and teams
- Design narrow, role-based access controls, and partner with automation so access is granted and revoked as people join, change teams, or leave
- Extend row access policies and PII masking across all sensitive datasets
- Migrate data from a variety of vendor and internal sources into properly owned, governed homes
- Own Fivetran connector health and cost, Airflow/Astronomer pipeline reliability and on-call, and Hex governance across company-wide dashboards
- Monitor and right-size Snowflake warehouse spend
- Help build CDC/streaming ingestion and other internal data platform tooling
What We're Looking For
- Hands-on experience with Snowflake administration: roles, grants, warehouses, cost/performance tuning
- Experience designing data access and governance models (RBAC, row-level security, PII) at scale
- Comfort owning vendor tooling end to end (Fivetran, Airflow/Astronomer, or similar), including on-call
- Track record migrating or re-architecting live production data systems without breaking dependent teams
- Strong SQL and Python, with infrastructure fluency to make judgment calls, not just execute a spec
- Experience owning CDC/streaming pipelines in production (Debezium, Kafka, Snowpipe Streaming or similar), including reasoning about delivery semantics, partitioning, and safe cutovers between systems.
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
- Free Equinox membership
- $200 monthly laundry reimbursement
- $200 monthly personal wellness reimbursement
- Health, Dental, Vision insurance
Why work at Mercor
- Culture: "Built for people who thrive in high-velocity environments." Values include Intensity, Simplicity, User Obsession, High Standards, Can-Do Attitude, and Time Travelers (thinking ahead).
- Work model: In-person collaboration from offices in San Francisco, New York City, and London. No remote option — the company believes in-person collaboration helps move faster and solve harder problems.
- Engineering culture: Direct exposure to frontier AI research, labs, and startups. Every team works with frontier models daily. Described as "the fastest-growing company in the world."
- Compensation: Generous equity grants, competitive salaries (ranges from $100K–$500K depending on role), and a "proximity bonus" (generous annual housing support).
- Benefits:
- Unlimited paid vacation and sick days
- Free Equinox membership (premium fitness access)
- Monthly wellness stipend and free mental health services
- Monthly food stipend
- 401k with employer match
- Parental leave for both birthing and non-birthing parents
- Team: "A team of ambitious, diverse people who want to work on what matters most." Open roles across Engineering (31 roles), Operations (15 roles), Enterprise (5 roles), Finance (4 roles), and more.