Software Engineer - Data Infrastructure

About Mercor

Mercor’s mission is to organize human intelligence for the AI economy. We build the infrastructure that enables frontier AI labs and enterprises to train, evaluate, and improve AI on real-world professional work. More than five million experts have joined our network, and we pay out over $5 million daily for their knowledge and expertise.

We built our training and evaluation infrastructure alongside the world’s leading AI labs. Now, we’re bringing those capabilities to enterprises across industries, enabling them to train, evaluate, and improve AI using their own expertise and standards. Our APEX benchmarks measure how AI performs on economically valuable work, while our enterprise evaluations and post-training capabilities turn those insights into measurable improvements across real-world workflows.

Our work sits at the intersection of frontier AI, human expertise, and real-world application. We’re solving problems few companies have encountered, with the opportunity to influence what the world’s most advanced AI systems become capable of doing. We’re looking for people who bring different perspectives, take ownership, exercise sound judgment, and hold themselves to an exceptionally high standard. You’ll have the opportunity to do consequential work alongside talented colleagues who challenge one another, collaborate openly, and share a commitment to excellence.

Mercor is profitable and recently raised a $750 million Series D at a $20 billion valuation. We work in person five days a week in San Francisco, New York, and London.

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 Infrastructure 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:

• Generous equity grant vested over 4 years

• Health, dental, and vision insurance

• 401(k) with company match

• Unlimited paid vacation and sick days

• Parental leave for birthing and non-birthing parents

• Free mental health services

• $200 monthly wellness reimbursement

• $1.5K monthly meal stipend

• $200 monthly laundry reimbursement

• Free Equinox membership

• Up to $15K relocation bonus

Mercor is an Equal Opportunity Employer and is committed to providing equal opportunity to all employees and applicants. Mercor does not discriminate based on actual or perceived race, color, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, related medical conditions and lactation), gender identity or gender expression, sexual orientation, marital status, military service and veteran status, disability, protected medical condition as defined by California or local law, genetic information, or any other characteristic protected by applicable federal, California, or local laws and ordinances. Further, Mercor prohibits discrimination, harassment, and retaliation based on any combination of protected characteristics. This Policy applies to all areas of employment, including recruitment, hiring, training, promotion, compensation, benefits, discipline, termination, and all other privileges, terms, and conditions of employment. This Policy and the law prohibit employment discrimination against any employee or applicant based on any legally protected status.