Software Engineer, ML Infrastructure
ML Infrastructure Engineer
The ML Infrastructure team builds large-scale compute, storage, and software infrastructure to support Cursor’s work building the world’s best agentic coding model. We’re looking for strong engineers who are interested in building high-performance infrastructure and the software to support it. This role works closely with ML researchers and engineers to enable their work through improvements to our training framework, systems reliability/performance, and developer experience.
What you might do
Collaborate with ML researchers to improve the throughput and reliability of training
Work with OEMs, cloud service providers, and others to plan and build cutting-edge GPU infrastructure
Improve the density and scalability of compute environments to enable increasingly large RL workloads
Create software and systems to automate building, monitoring, and running GPU clusters
Build workload scheduling and data movement systems to support Cursor’s growing training footprint
What we’re looking for
A strong background in systems and infrastructure-focused software engineering, particularly in Python, Typescript, Rust, and Golang
Experience with distributed storage and networking infrastructure, particularly on Linux systems across cloud and bare metal environments
Exposure to large-scale systems and their unique challenges, ideally across thousands of nodes with significant resource footprints.
Production use of infrastructure-as-code and configuration management, across hosts and Kubernetes
Nice to have
Operational exposure to Nvidia GPUs with Infiniband or RoCE, particularly with Blackwell and Hopper-class hardware
Exposure to Ray, Slurm, or other common compute and runtime schedulers