Project Overview
This project was carried out for a regional grid operator in the German energy sector, responsible for critical infrastructure and operating within a highly regulated environment.
I worked as a Full-Stack Developer on a long-running enterprise project focused on the development and operation of a business-critical web platform used for ordering, approval, and internal coordination processes.
I was responsible for the development of a comprehensive enterprise web portal that enables the ordering of photovoltaic (PV) systems and residential grid connections.
The portal was implemented using C# and ASP.NET MVC and was tightly integrated with Microsoft Dynamics 365, which served as the central backend system for business data and process orchestration.
The overall solution had to meet high requirements for reliability, data integrity, and long-term maintainability, as it supported daily operational processes within the energy infrastructure domain.
Responsibilities & Contributions
- Development and maintenance of a business-critical enterprise web portal
- Backend development using C# and ASP.NET MVC
- Design and implementation of ordering and approval workflows for photovoltaic systems and residential grid connections
- Integration of the web portal with Microsoft Dynamics 365, including data synchronization and process alignment
- Customization and configuration of Dynamics 365 to support evolving business requirements
- Implementation of business logic spanning portal and Dynamics 365 backend components
- Gradual introduction of Microsoft Azure services into an existing enterprise system landscape
- Setup and continuous improvement of CI/CD pipelines to enable controlled and predictable releases
- Close collaboration with domain experts to translate regulatory and business requirements into stable technical solutions
- Active participation in code reviews and continuous improvement of code quality
- Contribution to architectural discussions with a focus on scalability, maintainability, and long-term operation
Technical Focus
The project required working within a mature, long-lived system landscape consisting of a custom web portal and a Dynamics 365 backend, while continuously evolving the solution without disrupting ongoing operations.
Key technical challenges included:
- Ensuring consistent data and process synchronization between the portal and Dynamics 365
- Balancing new feature development with the stability of existing business workflows
- Introducing modern development and deployment practices into an established enterprise environment
- Maintaining a clean separation of concerns between portal logic, integration layers, and Dynamics 365 customizations
- Supporting evolving regulatory and business requirements without unnecessary technical complexity
Built With
Outcome & Impact
- Reliable operation of a mission-critical enterprise solution combining a custom web portal and Dynamics 365 backend
- Improved maintainability and code quality through structured refactoring and systematic code reviews
- More predictable and stable releases enabled by CI/CD practices
- Successful support of evolving regulatory and business requirements over multiple years
- A solid technical foundation for further modernization and cloud integration
Notes
Due to contractual and confidentiality obligations, specific internal details, data models, and screenshots cannot be disclosed.
The description focuses on technical responsibilities, architectural relevance, and enterprise context rather than proprietary implementation details.