Senior Systems Engineer, AI Infra & Test Framework

CoreWeave; Sunnyvale (CA); On-site; USD 153,000 - 204,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Company-paid Life Insurance

Tuition Reimbursement

401(k) with a generous employer match

Flexible PTO

Catered lunch in our office

Job summary

CoreWeave is seeking a Senior Software Engineer on the Systems Engineering team to own and evolve our testing framework. You will harden the Rust core, extend coverage into HPC and Slurm-on-Kubernetes, and ensure fast, hermetic CI at fleet scale.

You will build test harnesses, extend coverage, and shape abstractions for other engineers to add tests without reinventing the framework. You will collaborate with firmware, kernel, imaging, and HPC teams to embed testing into release processes, owning

Qualifications

• 3+ years of experience building test infrastructure, systems software, or platform tooling at scale, with real ownership of frameworks or automation for low-level software.
• Fluent in Python, with either proven Rust experience or a strong systems background (Go, C, C++) and a genuine appetite to build in Rust — the framework's core is Rust, and you'll live in it.
• Comfortable operating in a Kubernetes environment and reasoning about how software is built, containerized, deployed, and tested.
• Solid Linux systems background — the boot chain, kernel and drivers, low-level debugging — and comfort working close to the hardware.
• Real testing discipline: you've built automation that proves systems work, and you have strong opinions about flakiness, hermeticity, and signal.
• Clear communicator who treats the test framework as a product other engineers want to use, not a chore they route around.

Responsibilities

• Own and extend the test framework — that pins to a real host, boots the configuration under test, runs a containerized check, validates it, and records a structured result.
• Broaden what the framework qualifies: HPC and fabric verification, Slurm-on-Kubernetes (SUNK), and further down the stack into firmware and hardware, building the abstractions that make new coverage easy to add.
• Keep the pipeline fast, hermetic, and trustworthy — boot consistency, per-host resource locking, and ruthless flaky-test elimination — so engineers trust the signal.
• Own the results and reporting path end to end: structured test results, storage, dashboards, and the triage surfaces engineers use to turn a red run into a root cause quickly.
• Explore AI-native testing — LLM-driven log triage, failure classification, and regression detection — as the fleet and test surface grow.
• Collaborate with firmware, kernel, imaging, and HPC teams to embed testing into their release process.

Skills

Python

Rust

C/C++

Kubernetes

Linux

Tools

Go

Job description

CoreWeave is seeking a Senior Software Engineer on the Systems Engineering team to own and evolve our testing framework. You will harden the Rust core, extend coverage into HPC and Slurm-on-Kubernetes, and ensure fast, hermetic CI at fleet scale.

You will build test harnesses, extend coverage, and shape abstractions for other engineers to add tests without reinventing the framework. You will collaborate with firmware, kernel, imaging, and HPC teams to embed testing into release processes, owning