26.10.2026 aktualisiert
100 % verfügbar
Senior Backend & Integration Engineer | APIs & ERP Systems Automation
Merching, Deutschland
Merching +50 km
Msc. Information TechnologyÜber mich
I solve complex backend integration problems. As a Senior Backend & Integration Engineer, I design and build the unseen pipeline infrastructure that allows enterprise software, ERP databases, and third-party APIs to communicate seamlessly.
Skills
Asp.NetJavaScriptApplication IntegrationPythonMySQLNode.jsTypeScript.NET CoreReact.jsRestful ApisMicroservices
Frontend Development
HTML5, CSS3(SASS), JavaScript(ES6+), TypeScript, React, Next.js, Vue.js expertise for building scalable web applications
Backend & Database
Node.js (Express), Python(Danjo/Fast API), Rest API Microservices, C# (.NET), MySQL, MongoDB development and integration
AI-Assisted Development
AI-enhanced coding/debugging, prompt engineering, automated test generation, AI-driven code reviews, AI accelerated research/documentation, AI API integration
Styling & Responsive Design
Tailwind CSS, Bootstrap, Material UI, Figma, Storybook for modern UI/UX development
Testing & CI/CD
Jest, Mocha, Vitest, Playwright, Jenkins, GitHub Actions, Docker, Git for automated testing and deployment
Data Visualisation
Chart.js, Recharts.js, D3.js, DevExpress, GIS with Openlayers for complex data representation
Project Management
Agile methodology (Scrum/Kanban), Jira, Confluence, Team player for efficient project delivery
Erfahrung
Berufserfahrungmehr als 10 Jahre
Freelancer seit2025
Sprachen
EnglischMuttersprache
Projekthistorie
Project: Telemedicine Platform | KOADEL Group
Built a production-grade telemedicine platform with scalable full-stack architecture supporting patient & provider management, appointment bookings, authentication, and administrative workflows.
Key Contributions
● Designed a clean, layered Node.js + MongoDB backend (Controllers, Services, Repositories) ensuring maintainability and testability.
● Developed a React frontend integrated with TanStack Query for efficient API integration, caching and server-state management.
● Built a back-office admin dashboard using React and Ant Design for managing patients,providers, bookings, and administrative operations.
● Implemented secure authentication with JWT and Multi-Factor Authentication (MFA).
● Integrated Cloudflare R2 for scalable file storage and document handling.
● Applied SEO best practices for improved discoverability and performance of public-facing pages.
● Established automated unit testing to ensure business logic reliability and reduce regression risks.
Full-Stack Developer (Contract)
Project: GIS Web Application
Delivered full-stack MVP GIS mapping platform focused on spatial data processing and GIS visualization.
Key Contributions:
● Developed backend services using Node.js and TypeScript for geospatial data processing and API delivery.
● Built an interactive map-based JavaScript API using OpenLayers for mobile and browser-based clients.
● Introduced automated testing using Playwright (E2E) and Vitest (unit testing) to improve reliability and coverage.
● Implemented CI/CD pipelines with Jenkins to support automated builds, testing, and deployment.
● Worked in an Agile team, contributing to sprint planning, reviews, and cross-functional coordination.
Led modernization of a multi-page application (MPA) for multiple business units, improving UI consistency and maintainability with modern web technologies