SeniorFull-StackWebAppEngineer

SUMMARY Level is a learning technology company dedicated to helping students build real academic and life skills with confidence and joy. We combine proven curriculum principles with world class interactive design to make meaningful practice something students want to come back to, not something they struggle through. We support what teachers, schools, and parents are already doing by increasing student engagement with high quality, standards-aligned practice that reinforces classroom learning. As a Senior Full-Stack WebApp Engineer on the Platform team, you will own end-to-end slices of Level's web experience — from the browser through the API layer and into the services that power identity, accounts, onboarding, and the authoring/admin surfaces our internal teams rely on. You will architect and ship features that span TypeScript front-ends (React-family) and Kotlin/Java (JVM) backend services, partner with engineers across web, mobile, and native clients, and help raise the engineering bar on a small, senior-leaning team. Your work will directly impact the experiences students, educators, and internal users have every day, and the velocity at which the rest of the engineering organization can build on top of the platform. This is an onsite role (5 days per week) WHAT YOU WILL DO Feature Development - Own full-stack feature delivery across the web client and its supporting backend services — from UX and component work down through API design, data modeling, and persistence. - Design and evolve platform-facing web surfaces — authentication, account capture, invitation and onboarding flows, embedded authoring, and admin tooling consumed by web, mobile, and native clients. - Implement clean, readable, testable code on both client and server; take responsibility for features from initial design through release and ongoing maintenance. Architecture & Backend Services - Architect and implement backend services and APIs (REST and gRPC) that back the web experience and are