Senior Angular Engineer

New sales portal for field service

To modernize the existing field service platform, I was tasked with (further) developing a new sales portal using Angular. The new web app gradually replaces the old .NET portal and runs in parallel until all features are migrated.

The focus was on building a scalable, modular architecture and clearly separating domain logic from technical concerns. I was responsible for technical design, implementing core components, and introducing best practices. I also actively contributed to improving code quality, test coverage, and developer processes.

The app is optimized for tablets and desktops and is used by over 4,000 field agents.

• Languages: TypeScript, JavaScript, Java, HTML, SCSS, JSON, REST

• Frameworks & Tools: Angular, Nx, NgRx, RxJS, Git, Spring, TFS, Jenkins

• Testing: Jest, Cypress

• Design: UI/UX design, Figma, Storybook

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

• Project Management: Agile, Scrum, Jira, Confluence

• Technical design and development of a modern Angular web app for portal migration

• Built a modular frontend architecture with Nx and strict separation of domain and tech (Clean Architecture)

• Introduced and applied Domain-Driven Design in the frontend context, including layered models and linting rules for code organization

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

• Integrated the app with backend services via REST APIs

• Ensured high code quality through structured code reviews, testing with Jest and Cypress, and establishing guidelines

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

• Worked closely with in-house developers, product owners, and stakeholders for requirement analysis and solution design

• Supported the team with active knowledge sharing, review coaching, and technical decision-making

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

• Significantly improved test coverage with systematic introduction of Cypress tests and Jest, ensuring long-term code quality

• Facilitated knowledge transfer: intensive collaboration with in-house developers on DDD structures and testing strategies

• Modernized UI with a focus on clarity, usability, and modern web technology, achieving high adoption among field agents

• Parallel operation of the new Angular portal with the existing .NET system enabled a step-by-step migration of sales processes

Migration & redevelopment of the private customer order flow

As part of reworking the private customer order flow, I was brought in as a fullstack developer focused on frontend modernization. The goal was to gradually replace the existing monolithic JavaScript frontend with a modern Angular app. After building a working Angular prototype, I played a key role in the technical implementation of the new order flow.

I planned and implemented core components and worked closely with product owners and business units to ensure a clear mapping of order logic. Through consistent code reviews and clean structuring, I ensured the solution’s long-term maintainability.

• Languages: TypeScript, JavaScript, Java, HTML, SCSS, JSON, REST

• Frameworks & 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), microfrontend, Clean Code

• Project Management: Agile, Scrum, Jira, Confluence

• Developed an Angular prototype to replace an existing JavaScript frontend, later deployed to production

• Implemented key components of the new private customer order flow using Angular 10

• Maintained and enhanced existing frontend (JavaScript) and backend (Java/Spring) systems

• Collaborated closely with product owners and business units to capture complex business requirements

• Conducted code reviews with a focus on Clean Code and modular structuring

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

• Used modern tools and frameworks like NgRx, RxJS, and Angular Material to build scalable UI features

• Coordinated in a cross-functional team using Jira, Confluence, and agile methods

• Successfully launched the Angular prototype into production as the technical foundation for the new order flow

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

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

• Close coordination with product owners and business units ensured precise implementation of order logic

• Started incremental migration of legacy components, sustainably reducing frontend technical debt