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This listing was closed on Jul 18, 2026.
Browse Open JobsSenior Software Engineer - LLM Post-Training Platform
BELLEVUE · US
—
Full-time
SENIOR
About the Role
Snowflake is seeking a Senior Software Engineer to build the LLM post-training platform, Cortex Training, which turns GPU capacity into a composable service for customers to adapt open-weight models. The role involves designing and scaling distributed systems for GPU compute, productionizing research building blocks, and driving end-to-end performance.
Responsibilities
- Design and build across the full stack from public training APIs and SDK through control plane to GPU data plane.
- Scale distributed systems for multi-tenant scheduling, placement, and capacity-aware routing across regional GPU pools.
- Drive end-to-end performance to keep training, inference, and RL loops fast and GPUs saturated.
- Productionize research building blocks in partnership with Snowflake Research.
Requirements
- 5+ years building and shipping production ML systems.
- Strong distributed systems and infrastructure foundation (Kubernetes).
- Familiarity with GPU and LLM infrastructure (PyTorch, DeepSpeed/FSDP, Ray, CUDA/NCCL, vLLM).
- Ability to harden complex systems for reliability, throughput, and cost efficiency.
- BS in Computer Science or related field.
Nice to Have
- MS/PhD in Computer Science or related field.
Snowflake, Inc
Bellevue · US · 7800+ employees
Snowflake mobilizes enterprise data and is positioned as an AI Data Cloud. It enables customers to share data, build applications, and power business with AI.
