Senior Full Stack .NET / Vue.js Developer

Designed and developed a custom web application for the full process from order entry through site feedback to completion. Authentication via Microsoft Entra ID, scalable architecture for 100+ users, import via Excel files, operation & further development included.

• Conceptualized the overall architecture and planned the project flow including mockups and technical implementation

• Full stack development of the web application and REST API interfaces

• Built and maintained the database structure to map the complete order process

• Integrated Microsoft Entra ID for secure user authentication

• Developed an import for structured order entry via Excel files

• Coordinated testing, deployment, and go-live phases including infrastructure

• Supported production operations and continuous application development

• Successfully implemented an end-to-end digitization project in the construction sector, from order entry to project completion

• Delivered a stable, scalable solution for over 100 users in production

• Significantly improved process reliability and site feedback rates through targeted digital workflows

• High user acceptance and positive feedback thanks to an intuitive UI and stable performance

• Created a foundation for future extensions and new modules through modular architecture

• Tools and Technologies: C#, .NET 8, ASP.NET Core, REST, REST API, Microservices, Entity Framework Core, PostgreSQL, Nuxt.js, Vue.js, HTML5, CSS3, Tailwindcss, JWT, OAuth, Microsoft Entra ID, TypeScript, JavaScript, Node.js, Primevue, xUnit.net, jest, nginx, Docker, Clean Architecture, DDD, Domain-driven Design, SCRUM, Agile, GitHub, Frontend, User Experience (UX), Backend, Full Stack, Consulting, Figma

Design, architecture, and full development of an internal CRM system with authentication and authorization via Microsoft Entra ID. Integrated a granular role system, event-driven communication via RabbitMQ, and central user management. Focused on clean architecture, testability, and scalability.

• Designed and implemented a modular Clean Architecture with Domain-Driven Design

• Set up authentication and authorization with Microsoft Entra ID

• Developed a role-based access concept for users and teams

• Built a high-performance relational data model in PostgreSQL

• Implemented event-driven communication with RabbitMQ

• Containerized with Docker for easy deployment environments

• Implemented automated tests with xUnit.net

• Fully independent delivery from concept to production MVP rollout

• Secure and centrally managed user and rights management via Microsoft Entra ID

• High code quality and maintainability through clean architecture and automated tests

• Reduced complexity and integration effort through clear interface definitions

• Created a scalable foundation for future extensions and multi-tenancy

• Tools and Technologies: C#, .NET 9, ASP.NET Core, Entity Framework Core, REST, REST API, Microservices, PostgreSQL, xUnit.net, TypeScript, JavaScript, HTML5, CSS3, Tailwindcss, JWT, OAuth, Microsoft Entra ID, Node.js, RabbitMQ, MassTransit, Message Queuing, OpenTelemetry, Docker, Clean Architecture, DDD, Domain-driven Design, SCRUM, Agile, Jira, Bitbucket, CI/CD-Pipelines, Frontend, User Experience (UX), Backend, Full Stack, Consulting, Figma

Further development of a web-based software solution for managing and booking business trips. Implementation of modern user interfaces according to UI/UX guidelines and integration of backend services via a middleware. Quality assurance through comprehensive unit tests and end-to-end tests.

• Implemented responsive frontends with Vue.js, TypeScript and Nuxt.js according to UI/UX designs

• Integrated the middleware with various backend services (REST API)

• Created extensive unit tests with Jest for core logic

• Developed automated end-to-end tests with Playwright

• Actively contributed in the agile Scrum team (refinement, reviews, sprints)

• Used modern dev tools and CI/CD pipelines via GitLab

• Delivered a user-friendly and high-performance UI considering modern UX principles

• Ensured reliable service integration through clean interface connections

• Achieved high code quality and low error rate through multi-layer test coverage

• Provided new features on schedule despite technical and business complexity

• Tools and technologies: REST, REST API, Microservices, PostgreSQL, Vue.js, TypeScript, JavaScript, Nuxt.js, HTML5, CSS3, jest, Node.js, Nest.js, Playwright, Scrum, Agile, Jira, GitLab, CI/CD pipelines, frontend, user experience (UX), backend, fullstack, consulting

Further development and rebuilding of complex web applications in the energy sector: quotation platform, CRM system and services for online offers.

• Tools and technologies: REST, REST API, Microservices, PostgreSQL, Vue.js, TypeScript, JavaScript, Express.js, PWA, Ionic, GraphQL, Serverless, AWS Lambda, MongoDB, HTML5, CSS3, jest, Node.js, Cypress, E2E, Jest, SCRUM, Agile, Jira, Bitbucket, CI/CD-Pipelines, Frontend, User Experience (UX), Backend, Fullstack

Technical consulting and implementation of various web projects. Support with frontend and backend questions.

• Tools and technologies: Angular 9, TypeScript, JavaScript, HTML5, CSS3, Node.js, Apache Cordova, Microsoft SQL Server, frontend, user experience (UX)

Further development of a platform for modeling internal business processes.

• Tools and technologies: Angular 6, TypeScript, JavaScript, Node.js, HTML5, CSS3, Frontend, User Experience (UX)

Development of applications to control IoT devices via web and mobile.

• Tools and technologies: C#, ASP.NET Core, Entity Framework Core, REST, REST API, Microservices, Angular 6, TypeScript, JavaScript, HTML5, CSS3, Tailwindcss, xUnit.net, jest, Node.js, SCRUM, Agile, Jira, Git, Microsoft SQL Server, Frontend, User Experience (UX), Backend, Fullstack

New development of a course management system for swimming pools.

• Tools and technologies: C#, ASP.NET Core, Entity Framework Core, REST, REST API, Microservices, PostgreSQL, Node.js, SCRUM, Agile, CSS3– HTML5– Microsoft SQL Server, Frontend, User Experience (UX), Backend, Fullstack