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React Frontend Developer
Location
Germany
Posted
4 days ago
Salary
0
Seniority
Mid Level
Job Description
React Frontend Developer
LUMASERV
Role Description Als React Frontend Developer bei LUMASERV entwickelst du moderne, skalierbare Webanwendungen für Kundenprojekte mit Millionen von Nutzern. Gemeinsam mit Product Managern, Architekten und Entwicklern gestaltest du performante Frontends mit React, TypeScript und modernen Webtechnologien. Du übernimmst Verantwortung für technische Entscheidungen, etablierst Best Practices im Team und sorgst für eine hervorragende User Experience. - Du entwickelst moderne Frontend-Anwendungen mit React, TypeScript und modernem State-Management. - Du entwirfst skalierbare Frontend-Architekturen mit Fokus auf Performance, Wartbarkeit und Wiederverwendbarkeit. - Du setzt barrierefreie Webanwendungen nach aktuellen WCAG-Standards um. - Du integrierst und gestaltest API-Schnittstellen (REST / RPC) in enger Zusammenarbeit mit Backend-Teams. - Du entwickelst und pflegst Designsysteme sowie wiederverwendbare UI-Komponenten. - Du setzt moderne React Patterns wie Hooks, Context, Custom Hooks und Suspense ein. - Du optimierst die Performance großer Webanwendungen durch Code Splitting, Memoization und Rendering-Strategien. - Du arbeitest an technischen Konzepten und Architekturentscheidungen mit und nimmst an Kundenterminen teil. - Du führst Code Reviews durch und entwickelst gemeinsam mit dem Team Engineering Standards weiter. - Du setzt KI-gestützte Tools ein, um Entwicklungsprozesse und Codequalität zu verbessern. Qualifications - Mehrjährige Erfahrung in der Frontend-Entwicklung mit React und TypeScript - Sehr gute Kenntnisse im React-Ökosystem (z. B. React Router, React Query, Zustand oder Redux Toolkit) - Erfahrung mit Next.js (SSR, SSG, App Router) oder vergleichbaren Frameworks - Tiefes Verständnis moderner Frontend-Architekturen (SPA, SSR, Hybrid Rendering) - Erfahrung mit Testing (Jest, Vitest, Testing Library, Playwright/Cypress) - Sicherer Umgang mit REST APIs und OpenAPI/Swagger - Erfahrung mit Performance-Optimierung großer Webanwendungen - Kenntnisse in modernen Styling-Ansätzen (Tailwind, CSS-in-JS oder ähnliche) - Erfahrung mit agilen Methoden (SCRUM, Kanban) und Tools wie JIRA Company Description Bei LUMASERV arbeiten wir an Cloud- und Infrastrukturprojekten mit großer Wirkung – von hochverfügbaren Plattformen für Verwaltungen bis zu skalierbaren Lösungen für Bildung und Forschung. Wir entwickeln und betreiben Systeme, auf die sich täglich Millionen Nutzer verlassen – sicher, datenschutzkonform und mit europäischem Anspruch. Wenn du gerne Verantwortung übernimmst, Dinge pragmatisch umsetzt und im Team Lösungen schaffst, die wirklich funktionieren, bist du bei uns richtig. Dich erwartet ein Umfeld mit kurzen Entscheidungswegen, moderner technischer Ausstattung und der Freiheit, eigene Ideen einzubringen und umzusetzen.
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