Frontend Engineer (Performance & UI Rendering)
hace 1 día
Logroño
Mission Para una comprensión completa de esta oportunidad y de lo que se requerirá para ser un candidato exitoso, siga leyendo. Transform Nextcloud Office into a high-performance, modern web-based productivity suite, going beyond traditional DOM-driven applications. You will own the look and feel of the product, ensuring that even the most complex documents and spreadsheets remain fast, smooth, and responsive under heavy load. Responsibilities * • Build new frontend features such as advanced charts, conditional formatting, and interactive document elements, • Develop fast, responsive user interfaces using modern JavaScript, • Ensure a smooth 60fps experience across all user interactions (scrolling, typing, zooming), • Move performance-critical rendering logic from the DOM to Canvas or hardware-accelerated technologies, • Refactor legacy styles into a modern, performance-optimized CSS system based on variables (supporting dark mode and high-contrast themes), • Implement responsive UI patterns such as optimistic UI to improve perceived performance, • Collaborate with other teams to optimize latency and real-time user experience, • Leverage AI tools to accelerate development while focusing on performance, edge cases, and UI quality Requirements Technical * • Strong experience with modern JavaScript (ESNext), • Deep understanding of DOM behavior and performance trade-offs, • Experience with Canvas API or rendering libraries (e.g., PixiJS or Fabric.js), • Solid knowledge of frontend performance optimization techniques, • Experience using Web Workers to offload work from the main thread, • Experience with modern CSS and performance-oriented styling AI & Development * • Experience using AI-assisted development tools (e.g., Cursor or similar), • Ability to use AI as a productivity multiplier without compromising code quality Profile * • Strong focus on smooth UI and rendering performance (60fps mindset), • High level of English proficiency, with strong communication skills in an international team environment, • Attention to detail in user experience and visual quality, • Background in demanding frontend environments (e.g., interactive apps, data xcskxlj visualization, or graphics-heavy web applications), • Pragmatic, execution-focused mindset What We Offer * • Hybrid work model (with preference for our offices in Alcobendas, Valencia, Barcelona, Sevilla, or Logroño), • Flexible working hours, • Flexible compensation package, • Discounts on Arsys products, • Discounts on technology brands, • Personalized training and development plans, • Biannual team events, • Access to advanced AI tools with no usage restrictions, • Challenging frontend problems in high-performance environments, • Engineering culture focused on quality, performance, and continuous improvement #J-18808-Ljbffr