Senior Software Engineer I
Core
Build full-stack applications and features for UNION, CoreWeave's internal data platform, enabling natural language queries, dashboards, and AI agents to operate on governed data.
Role type
Senior full-stack software engineer (data infrastructure & AI applications)
Builds
UNION data platform (lakehouse querying, dashboards, agents) and internal infrastructure decision tools
Domain
Cloud infrastructure, data engineering, AI/LLM applications
Deliverable
production ML models | product features
Required skills
Python, TypeScript, React, Next.js, HTTP API design, SQL, relational data modeling, container orchestration (Docker, Kubernetes), CI/CD, automated testing, observability
Preferred skills
LLM-backed feature development, agent frameworks (LangGraph), distributed systems design, open table formats (Iceberg, Delta, Hudi), internal platform building, capacity planning/finance domain experience
Technologies
TypeScript, React, Next.js, Python, Kubernetes, Postgres, Spark, Kafka, StarRocks, Snowflake, LangGraph
Responsibilities
Design and run HTTP APIs for dependent services, build AI-facing features with evaluation metrics, work with non-engineers to define unstructured problems, own production reliability and on-call duties, ship internal tools adopted by other teams
Seniority
Senior, hands-on IC