Mirrai Careers

Data Platform Engineer

Mercor

San Francisco Full-time$160k–$500k / year Posted 8d ago
Above market. This role pays above the $200k median for similar USD roles (273 comparable postings in our corpus).
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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

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