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Senior Full-Stack Developer: React / TypeScript / .NET

Full-time

yourMAIL GmbH

Role Description

Softwarelösung im Microsoft-/Cloud-Umfeld. Unsere Zusammenarbeit findet vollständig im Home Office statt, mit kurzen Abstimmungswegen, hoher Eigenverantwortung und einer stark KI-gestützten Arbeitsweise. Für unser Entwicklungsteam suchen wir eine erfahrene Full-Stack-Entwicklerin oder einen erfahrenen Full-Stack-Entwickler mit Schwerpunkt auf React, TypeScript, .NET und Cloud-nativer Entwicklung. Die Rolle eignet sich besonders für Menschen, die Features ganzheitlich denken und gerne von der Datenbankschicht über Backend-APIs bis zur Benutzeroberfläche Verantwortung übernehmen.

Wir nutzen KI-Tools konsequent im Entwicklungsalltag – von der Planung über Implementierung, Debugging und Code Reviews bis hin zu Dokumentation und Prozessoptimierung.

Responsibilities

  • End-to-End-Feature-Entwicklung von der Datenbankschicht über REST APIs bis zur React-UI
  • Design und Implementierung responsiver React-Komponenten für Desktop und Mobile
  • Entwicklung skalierbarer Backend-APIs mit .NET 9, C#, FastEndpoints und Entity Framework Core
  • Arbeit mit React 19, TypeScript 5.9, Tailwind CSS, Radix UI, TanStack Router und TanStack Query
  • Integration mit Office.js, Microsoft Graph API und Azure Services
  • Umsetzung und Weiterentwicklung von Authentifizierungs- und Integrationsprozessen mit Azure MSAL
  • Mitarbeit an Datenbankdesign, SQL-Strukturen und Performance-Fragen
  • Cloud-native Entwicklung und Deployment auf Azure, unter anderem mit Azure Container Apps
  • Arbeit mit Docker, GitHub Actions, Elasticsearch, Redis, Azure OpenAI und Azure Service Bus
  • Aktive Mitwirkung an Code Reviews über den gesamten Stack
  • Mitgestaltung technischer Architekturentscheidungen
  • Aktive Nutzung von KI-Tools zur Steigerung von Qualität, Geschwindigkeit und Transparenz im Entwicklungsprozess

Qualifications

  • Mindestens 5 Jahre Full-Stack-Erfahrung mit modernen Frameworks
  • Gute React- und TypeScript-Kenntnisse, inklusive React Hooks, State Management, REST APIs und responsiver Oberflächen
  • Sichere Kenntnisse in .NET, C#, REST APIs, Entity Framework Core und SQL
  • Gutes Verständnis für Datenbankdesign und SQL-Strukturen
  • Erfahrung mit Git, modernen Build-Tools wie Vite oder Webpack sowie DevOps-Grundlagen
  • Cloud-First-Mindset, idealerweise mit Azure oder alternativ AWS
  • Interesse an Microsoft-Technologien wie Office.js, Microsoft Graph API und Azure MSAL
  • Offenheit für KI-gestützte Entwicklungsprozesse und idealerweise praktische Erfahrung mit entsprechenden Tools
  • Sehr gute Selbstorganisation im Home Office
  • Proaktive und klare Kommunikation im Remote-Team
  • Strukturierte, pragmatische und lösungsorientierte Arbeitsweise
  • Gutes Gespür für die Balance zwischen schneller Lösung und langfristiger Wartbarkeit
  • Produktorientiertes Denken und Freude an der langfristigen Weiterentwicklung eines Softwareprodukts
  • Fließende Deutschkenntnisse

Additional Qualifications

  • Erfahrung mit TanStack Router, TanStack Query oder Zustand
  • Office.js oder Office-/Outlook-Add-in-Entwicklung
  • Azure AD / Microsoft Entra ID oder Microsoft Graph API
  • FastEndpoints oder Minimal APIs
  • MediatR oder CQRS-Pattern
  • SignalR / WebSockets
  • Azure Container Apps, Azure OpenAI oder Azure Service Bus
  • Elasticsearch oder Redis
  • Docker und GitHub Actions
  • PostgreSQL und Performance-Optimierung
  • KI-Tools wie GitHub Copilot, ChatGPT, Claude, Cursor, Windsurf oder vergleichbare Werkzeuge
  • Gute Englischkenntnisse für technische Dokumentation und den Umgang mit Entwicklungsressourcen

Benefits

  • 100 % remote aus dem Home Office
  • Flexible Arbeitszeiten mit gemeinsamer Erreichbarkeit ungefähr zwischen 10:00 und 16:00 Uhr
  • Teilzeit ab 20 Stunden pro Woche ist möglich, Vollzeit ist ebenfalls willkommen
  • Eine KI-First-Arbeitsweise mit konsequenter Nutzung moderner KI-Tools
  • Ein moderner Tech Stack mit React 19, TypeScript 5.9, .NET 9, PostgreSQL und Azure
  • Spannende Integrationen mit Office.js, Microsoft Graph und Azure OpenAI
  • Technologische Vielfalt durch tägliche Arbeit mit Frontend, Backend und Cloud-Services
  • End-to-End-Verantwortung von der Datenbank bis zur Benutzeroberfläche
  • Hohe Eigenverantwortung bei der Umsetzung neuer Features
  • Kurze Entscheidungswege und direkte technische Abstimmung
  • Die Möglichkeit, Architekturentscheidungen aktiv mitzugestalten
  • Ein pragmatisches, produktorientiertes Arbeitsumfeld ohne Konzernmentalität
  • Raum für eigene Ideen, Automatisierung und moderne Entwicklungsprozesse
  • Festanstellung mit Start zum nächstmöglichen Zeitpunkt
  • Standort Deutschland bevorzugt, EU nach Absprache möglich
Vacancy posted 1 day ago
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