Senior Full-Stack Developer: React / TypeScript / .NET
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
$117k - $150k
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- ...Description Karbon is seeking a Senior FullStack Software Engineer. This... ...technical specifications and developing and deploying software. ~Build... ...maintaining web applications using C#, .NET (MVC, Web API, .NET Core) and JavaScript or TypeScript. Experience with Ember.js is an...Senior.netTypeScriptFull timeFlexible hours
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