Full Time: Systems Engineering Senior

Senior Systems Engineer, Test Frameworks & Validation Platform

Livingston, NJ / New York, NY / Sunnyvale, CA / Bellevue, WA CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. The Systems Engineering team owns the host software stack that turns a freshly provisioned bare-metal machine into a healthy Kubernetes worker — the OS image, kernel and drivers, and the hardware and firmware beneath them. We build and operate the test framework that qualifies every server image on real physical hardware before it reaches one of the largest GPU fleets in the world, and we're extending that framework into HPC verification, Slurm-on-Kubernetes, and further down the stack.

As a Senior Software Engineer on the Systems Engineering team, you will own and evolve our test framework — in-house, Kubernetes-native system that qualifies host images and infrastructure on real hardware. You'll harden the framework's core, broaden what it can validate, and keep CI fast and trustworthy at fleet scale, where a 0.1% failure rate is thousands of GPUs. 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.

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.

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.
• HPC or large-cluster experience — InfiniBand/RoCE, GPU/accelerator validation, or performance-regression frameworks.

Contributions to open-source test frameworks, Rust crates, or systems projects.

We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).

These include qualifications, experience, interview performance, and location.

The benefits below reflect our US-based offerings for full-time employees; Medical, dental, and vision insurance - 100% paid for by CoreWeave

• Company-paid Life Insurance
• Voluntary supplemental life insurance
• Short and long-term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement
• Ability to Participate in Employee Stock Purchase Program (ESPP)
• Flexible, full-service childcare support with Kinside
• Flexible PTO
• Catered lunch each day in our office and data center locations
• A casual work environment
• All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.

As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. This position requires access to export controlled information. S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.