Are these based on real engineering roles?
Yes. The catalog is built around real engineering role patterns so the practice round feels closer to a live interview.
Role practice
Pick a role, answer follow-up questions out loud, and get a scored verdict after the interview.
Palantir
Frontend
Build the rich, data-dense user interfaces that make Foundry and Gotham usable for analysts and operators, using TypeScript with React and Redux to render and manipulate large datasets interactively at scale. You'd own complex frontend architecture, performance, and component design for applications where responsiveness over huge data volumes is critical. A technical interview would probe JavaScript and TypeScript depth, React state-management and rendering-performance tradeoffs, and how you architect a maintainable, performant UI that stays responsive while handling large amounts of data.
Vercel
Frontend
Work on the Next.js open-source framework that powers a large share of the React ecosystem, building features across the App Router, React Server Components, and the Rust-based Turbopack bundler and compiler. You would balance developer ergonomics with build performance while shepherding changes through a heavily-used public repo and large community. A technical interview would probe deep understanding of React rendering and hydration internals, bundler/compiler design tradeoffs, and how to evolve a framework API without breaking millions of downstream apps.
Yes. The catalog is built around real engineering role patterns so the practice round feels closer to a live interview.
Yes. ExoForm runs a live voice interview, asks follow-ups, and produces structured feedback after the session.
Yes. You can start with the free interview allowance before upgrading for more practice.