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Christian GappelCG

Christian Gappel

Fullstack Developer & DevOps Engineer/Consultant

960 €/jour
Landquart GR, CH
3-7 ans

Délai de réponse moyen : 1h

À propos de Christian

Ich bin ein erfahrener Softwareentwickler mit Schwerpunkt auf modernen End-to-End-Technologien im Web- und Cloud-Umfeld. Mein Fokus liegt auf der Entwicklung und Architektur anspruchsvoller Angular-Frontends sowie performanter .NET- und Java-Spring-Backends.

Ich begleite Projekte ganzheitlich – von der technischen Beratung und Architekturplanung über Implementierung, Testautomation und Deployment bis hin zu Betrieb und kontinuierlicher Weiterentwicklung.

Technische Schwerpunkte:

Frontend (Angular-first):
  • Angular (14–20), RxJS, NgRx, Signals
  • Architektur von wiederverwendbaren UI-Komponenten und Libraries
  • Reactive State Management und Performance-Tuning
  • Moderne UI/UX-Patterns, Accessibility, Responsive Design
  • Testautomation mit Jest, Jasmine und Cypress
Backend (.NET & Java):
  • .NET / ASP.NET Core: REST-APIs, GraphQL, Authentifizierung (JWT, Azure AD)
  • Java / Spring Boot: Microservices, API-Design, Security & Config Management
  • Domain-getriebene Architektur, modulare Services, Messaging (RabbitMQ, Kafka)
  • Clean Code, SOLID, CQRS, DDD
Cloud & DevOps:
  • Microsoft Azure: App Services, Key Vault, Cosmos DB, Service Bus, Functions
  • CI/CD mit Azure DevOps und GitHub Actions
  • Infrastructure as Code (Bicep, Terraform)
  • Container-Orchestrierung mit Docker und Kubernetes
  • Monitoring & Observability (Application Insights, Grafana, Prometheus)
Testing & Qualität:
  • Unit-, Integration- und E2E-Tests
  • Testautomation innerhalb der Build-Pipeline
  • Linter, Code Style Enforcement, Statische Analyse
Architektur & Consulting:* Technische Leitung und Architekturentscheidungen für komplexe Systeme
  • Einführung moderner Frontend-/Backend-Patterns
  • Refactoring und Modernisierung bestehender Monolithen zu Microservices
  • Coaching und Mentoring von Teams
  • Allemand

    Bilingue ou natif

  • Anglais

    Bilingue ou natif

  • Ukrainien

    Notions

  • Français

    Notions

Accepte de travailler sur site
Landquart GR (jusqu’à 50 km)

Expériences

  • Evulution AG
    Lead Full-Stack & DevOps Engineer (.NET, Angular)
    ENERGIE
    septembre 2024 - Aujourd'hui (1 an et 9 mois)
    Landquart GR, Suisse
    • Led the refactoring of a 5+ year-old Angular codebase to align with modern standards (Angular 20)
    • Designed and implemented a modern, responsive redesign of the Angular frontend
    • Migrated native mobile applications to hybrid solutions using Capacitor
    • Transitioned on-premise customers to in-house SaaS model
    • Containerized and migrated the full application into a Kubernetes cluster
    • Implemented CI/CD pipelines for automated build, test, and deployment workflows
    • Configured centralized logging and monitoring using Seq for real-time observability
    • Managed container orchestration and cluster operations via Rancher
    • Integrated Keycloak for identity management and SSO across services
    • Automated background job processing and scheduling with Hangfire
    • Established and enforced software quality measures across all product layer
    • Directed the migration of a legacy product from Django to .NET/Angular
    • Technologies: .NET, Angular, TypeScript, Kubernetes, Docker, Seq, Rancher, Hangfire, Keycloak, Azure DevOps, Helm, Git
    .NET Angular Kubernetes DevOps
  • Festo Didactic SE & Co. KG
    Fullstack Developer (.NET & React)
    EDUCATION & E-LEARNING
    octobre 2023 - août 2024 (10 mois)
    Esslingen am Neckar, Allemagne
    • Backend migration from PHP to .NET
    • Revision of Point & Click to Drag & Drop interaction design
    • Frontend migration of Vanilla JS App to React
    • Established CI/CD pipelines for automated testing and deployment
    • Implemented API documentation and versioning with Swagger/OpenAPI
    • Set up containerized development and production environments with Docker
    • Configured environment-based build configurations and release management
    • Technologies: .NET, Swagger, React, TypeScript, SCSS, Docker, Git, Azure DevOps
    .NET React.js DevOps
  • Festo SE & Co. KG
    QA Automation & DevOps Engineer (.NET, Terraform, xUnit)
    INGÉNIERIE MÉCANIQUE
    octobre 2022 - septembre 2023 (11 mois)
    Esslingen am Neckar, Allemagne
    • Project to improve software quality of mechanical system
    • Blackbox, component and functional testing of Windows applications
    • Provisioned test infrastructure using Terraform
    • Integrated automated test execution into CI/CD pipelines
    • Established quality gates and code coverage metrics
    • Built test reporting dashboards and quality KPIs with PowerBI
    • Configured test case management and traceability in Codebeamer
    • Implemented automated UI/E2E testing workflows with Leapwork
    • Technologies: .NET, xUnit, Codebeamer, Swagger, PowerBI, Leapwork, MS SQL Server, Azure DevOps, Git
    .NET xUnit DevOps Terraform

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Formations

  • ABITUR
    Wernerheisenberg-Gymnasium
    ABITUR
  • BACHELOR OF SCIENCE
    Cooperative University Baden-Wuerttemberg
    BACHELOR OF SCIENCE

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