Senior Angular Engineer

New sales portal for field service

To modernize the existing field service platform, I was tasked with the (further) development of a new sales portal based on Angular. The new web application gradually replaces the previous .NET portal and runs in parallel until all features are migrated.

The focus was on building a scalable, modular architecture and a clean separation of business logic and technology. I was responsible for the technical design, implementation of central components, and the introduction of best practices. Additionally, I actively contributed to improving code quality, test coverage, and developer processes.

The application is optimized for use on tablets and desktops and is used by over 4,000 field service employees.

• Programming languages: TypeScript, JavaScript, Java, HTML, SCSS, JSON, REST

• Frameworks and tools: Angular, Nx, NgRx, RxJs, Git, Spring, TFS, Jenkins

• Testing: Jest, Cypress

• Design: UI/UX design, Figma, Storybook

• Architecture: Domain-Driven Design (DDD), micro frontend, Clean Code, Arc42

• Project management: Agile, Scrum, Jira, Confluence

• Technical design and further development of a modern Angular web application as part of the portal migration

• Building a modular frontend architecture with Nx and consistent separation of business logic and technology (Clean Architecture)

• Introducing and implementing Domain-Driven Design in a frontend context—including layered model and linting rules for code organization

• Developing reusable UI components and features using Angular, NgRx, and RxJS

• Integrating the application with backend services via REST APIs

• Ensuring high code quality through structured code reviews, testing with Jest and Cypress, and introducing corresponding guidelines

• Conducting regular upgrades to new Angular versions to ensure long-term maintainability

• Close collaboration with internal developers, product owners, and stakeholders for requirement analysis and solution finding

• Supporting the team through active knowledge transfer, review coaching, and technical decision making

• Established a modular architecture with Nx & DDD as a technical foundation for future development.

• Significantly improved test coverage through systematic introduction of Cypress tests and Jest—basis for long-term code quality.

• Knowledge transfer and integration: intensive collaboration with internal developers in building DDD structures and testing strategies

• Greatly modernized UI with a focus on clarity, user-friendliness, and modern web technology—high acceptance among field service

• Parallel operation of the new Angular portal with the existing .NET system enabled gradual migration of the sales process

Migration & redevelopment of the ordering process for private customers

As part of the realignment of the ordering process for private customers, I was hired as a fullstack developer focused on frontend modernization. The goal was to gradually replace the existing monolithic JavaScript frontend with a modern Angular application. After developing a functional prototype in Angular, I was heavily involved in the technical implementation of the new ordering process.

I planned and implemented central components and worked closely with product owners and business units to ensure a clean business-technical representation of the ordering logic. In close coordination with the development team, I ensured long-term maintainability through consistent code reviews and clean structuring.

• Programming languages: TypeScript, JavaScript, Java, HTML, SCSS, JSON, REST

• Frameworks and tools: Angular, Nx, NgRx, RxJs, Git, Spring, TFS, Jenkins, Angular Material, Maven, TeamCity

• Testing: Jest, Cypress

• Design: UI/UX design, Figma, Storybook

• Architecture: Domain-Driven Design (DDD), micro frontend, Clean Code

• Project management: Agile, Scrum, Jira, Confluence

• Developed an Angular prototype to replace an existing JavaScript frontend—later taken into production

• Technical implementation of central components of the new ordering process for private customers based on Angular 10

• Maintenance and further development of existing systems in the frontend (JavaScript) and backend (Java/Spring)

• Close coordination with product owners and business units to map complex business requirements

• Conducting code reviews focusing on Clean Code and modular structuring

• Participating in the gradual migration of legacy components to a modern Angular codebase

• Utilizing current tools and frameworks such as NgRx, RxJS, and Angular Material to implement scalable UI functionalities

• Using Jira, Confluence, and agile methods for coordinated collaboration in the cross-functional team

• Successfully transitioned the Angular prototype into production and established it as the technical foundation for the new ordering process

• Laid the groundwork for modern frontend development: modular, maintainable structure in the Angular ecosystem replaced the monolithic JavaScript frontend

• Improved code quality through targeted reviews: introducing Clean Code principles and best practices in team collaboration

• Close coordination with product owners and business units enabled precise implementation of ordering logic

• Initiated the gradual migration of legacy components—sustainable reduction of technical debt in the frontend