Fullstack Engineer (Frontend focus)

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 Monolith AI Engineering Team at CoreWeave is responsible for building and scaling the core platform that powers the world’s most advanced engineering simulation and AI workflows. Our ambition is to become the super‑intelligent AI test lab for the engineering industry, helping customers “ship science, faster.”

The Fullstack Engineer (Frontend Focus) will own and evolve the Monolith platform’s product surface — the data‑heavy, workflow‑centric web experience where engineers design experiments, compare runs, interact with agents, and turn complex physical test data into decisions. You’ll partner closely with Design, Product, and Backend Engineering to ship UI and UX that feel fast, intuitive, and trustworthy for non‑ML expert engineers, while also contributing to our Python backend services when needed.

In This Role, You Will

• Frontend Ownership & Experience: Own significant areas of the Monolith frontend, from architecture and component design to implementation, refactors, and ongoing maintenance. Design and build modern, responsive UIs using React and TypeScript, focusing on complex, data‑heavy views that remain fast and understandable for users. Collaborate with Design to evolve our design system and component library, ensuring consistency, accessibility, and a high‑quality visual language across the product. Drive frontend performance improvements to keep the app responsive even under large datasets and long‑running workflows. Champion accessibility and usability.
• Fullstack Development & Platform Integration: Work closely with backend engineers on our Python services to design clean API contracts, shape data models for UI needs, and debug issues across the stack. Implement and integrate backend functionality when it materially improves UX or unlocks new workflows. Collaborate with our agent and platform teams to expose agentic capabilities safely and intuitively in the frontend experience. Contribute to fullstack observability.
• Collaboration, Quality & Developer Experience: Work hand‑in‑hand with Product and Design to scope projects, define success criteria, and break down ambiguous problems into iterative deliverables. Maintain a high bar for code quality through thoughtful design, code reviews, tests, and documentation. Help improve our frontend developer experience. Mentor other engineers on frontend best practices.

Who You Are

• Typically 7+ years of professional software engineering experience, including substantial time building and maintaining complex, user‑facing web applications as a fullstack or frontend‑leaning engineer.
• A track record of operating at Senior/Staff scope: owning significant product surface area, driving cross‑team projects, and making architectural decisions that last.
• Frontend Expertise: Advanced proficiency in React and TypeScript, with experience structuring large‑scale frontends. Strong command of web fundamentals. Experience building data‑heavy and visualization‑centric UIs.
• Backend & Platform Skills: Solid experience with Python in production environments, including building and integrating REST or GraphQL APIs. Comfortable working in service‑oriented or microservice architectures. Experience with SQL databases and practical data modelling for product features.
• Quality & Ways of Working: Strong habits around testing and CI/CD for frontend and backend changes. Effective collaborator with clear written and verbal communication.

Preferred

• Experience building UIs for technical or data‑savvy users, especially in B2B SaaS products.
• Familiarity with GraphQL and typed API clients in React.
• Experience with SSR/SSG frameworks, particularly for performance‑sensitive dashboards.
• Prior work with time‑series and experiment tracking tooling, ML platforms, or analytics products.
• Exposure to ML/AI workflows and interest in “tools for AI engineers” as a product domain.

Why CoreWeave?

At CoreWeave, we work hard, have fun, and move fast! We’re in an exciting stage of hyper‑growth. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:

• Be Curious at Your Core
• Act Like an Owner
• Empower Employees
• Deliver Best‑in‑Class Client Experiences
• Achieve More Together

We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems.

What We Offer

In addition to a competitive salary, we offer a variety of benefits to support your needs, including family‑level medical and dental insurance, generous pension contribution, life assurance, critical illness cover, employee assistance programme, and tuition reimbursement.

Our Workplace

While we prioritize a hybrid work environment, remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets.

CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants 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.