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Senior Full-Stack UI Engineer (remote/onsite) at BeamNG GmbH. Role description. We are focused on creating a state-of-the-art, real-time, soft-body physics engine and making it widely available for entertainment and simulation purposes. Our most widely known product is our game . BeamNG.drive. , which is now available on Steam in Early Access.. In order to support our ongoing and future development plans, we are seeking an experienced Senior Full-Stack UI Engineer with a focus on Vue3 and Lua for our development team, who will support us in finishing the game. . Why this role exists. We are in the process of enhancing and modernizing our in-game user interface. This interface utilizes web technologies within the game, all while adhering to "game-like" limitations, including real-time data handling, stringent responsiveness standards, enduring session durations, and diverse input/navigation methods beyond just mouse and keyboard.. We seek a senior engineer with a strong foundation in web fundamentals (such as browser and renderer behavior, JavaScript runtime, and performance) who can communicate effectively and dependably within a small team.. Technologies and tools you will engage with (overview). Frontend:. Vue 3 SFCs using Composition API, JavaScript, SCSS.. UI “backend”:. Lua extensions are the source of truth. UI should mostly render and forward user intent.. Realtime data:. discrete events + high-frequency data streams (telemetry) for frequent/authoritative updates.. Input & navigation: . scoped navigation and gamepad/keyboard-first UI, backed by engine input bindings (ActionMaps).. Bridge layer:. a JS↔engine bridge used for calling Lua, receiving hooks/events, and managing stream subscriptions.. Responsibilities. Build UI features end-to-end: . implement Vue UI, define clean UI↔Lua contracts, and collaborate with Lua specialists (you can handle basic Lua glue when needed).. Make UI fast and stable: . profile and optimize rendering/layout/update frequency to reach a 60 FPS feel where it matters, and keep long-running sessions leak-free.. Keep business logic in Lua: . keep Vue focused on presentation and simple UI state; avoid moving backend logic/data conversions into JS.. Work with real-time data: . design UI that stays responsive while receiving frequent updates from the game/simulation.. Own navigation/input correctness:. integrate scoped navigation and UI event handling so screens behave correctly with gamepad/keyboard and don’t leak inputs to parent scopes.. Improve developer experience:. small, practical improvements to tooling/pipelines, debugging helpers, and performance instrumentation.. Support the team: . review code, help juniors grow, and keep quality high without over-engineering.. What to anticipate (in the initial stages). You’ll pick up a meaningful migration area and ship improvements incrementally (not a big-bang rewrite).. You’ll spend time profiling and fixing real UI performance/stability problems (we care about 60 FPS feel and long-session reliability).. You’ll learn the bridge, data flow, and navigation/input patterns, and start owning a feature area while still helping across the UI when needed.. About you. Deep web fundamentals:. strong understanding of browser rendering (layout/paint/compositing), the JS runtime (event loop, GC), and how to diagnose performance issues with real tools (performance + memory profiling).. Proven performance experience: . you’ve shipped UI where performance mattered (large UI surface, frequent updates, long-running sessions) and can explain the trade-offs you made.. Strong JavaScript: . pragmatic, readable code; understands costs of allocations, reactive churn, and excessive DOM work.. Vue 3 expertise:. Composition API, component architecture, reactive patterns, and debugging reactivity/performance issues.. Lua (basics): . you’re not scared of Lua and can collaborate effectively with Lua specialists; you’re willing to learn the basics and follow Lua-first architecture.. Small-team mindset:. reliable follow-through, comfortable with both “interesting problems” and routine work.. Platform awareness: . you can think about performance and reliability across targets from high-end PCs down to Steam Deck.. Excellent communication skills in English, able to convey complex information in a clear and suitable manner to a diverse audience. Nice to have. Experience with embedded browser UIs / game UIs / realtime dashboards / telemetry-heavy UIs.. Knowledge of input systems.. Familiarity with C/C++ or engine integration concepts (even if you don’t write engine code daily).. Experience migrating legacy UI systems incrementally (keeping features shipping while modernizing).. Experience setting up practical UI testing/automation (wishlist for us; currently mostly manual).. Company Location: Germany.