Frontend Developer (Angular) – Security Platforms

Introduction37 hours per weekStart date: 03-08-2026End date: 06-07-2027Hybrid workingPrevious work experience in Telecommunication is a preRelocation is not possible.About KPN & the QCarbon / Kult TeamWithin KPN we are building and operating world‑class networks (No.1 globally in 5G) and continuously digitalising our processes. A key part of this is developing secure, reliable and scalable internal platforms that support critical business operations.The QCarbon / Kult team develops and maintains a suite of security applications that support Business Continuity Management and Penetration Test Management. These applications are business‑critical and used across the organisation.We are a DevOps product team consisting of:4 experienced, knowledge‑driven engineers1 product owner1 scrum masterThe team is international, based in Rotterdam (The Netherlands), and works in a hybrid setup. We collaborate closely with stakeholders from Security, Infrastructure, AWS and the business. Stakeholders actively join refinement sessions and sprint moments and visit the team weekly at the office.Currently, we are rebuilding the backend from Django / Django REST Framework / Redis to FastAPI and SQLAlchemy, running in Docker on AWS. This modernisation is expected to be finalised in summer ’26 and will enable new functional and technical features.The frontend plays a key role in effectively consuming these APIs and ensuring a consistent, secure and high‑quality user experience.Position overviewQCarbon is crucial to making Business Continuity Management a success within KPN.As a frontend developer, you contribute to a security-critical platform where correctness, consistency and maintainability are essential.You will work on complex security applications where correctness, consistency and clarity are essential. This role requires not only a strong technical foundation, but also an understanding of the functional and business context in which the application is used.You work closely with your teammates and stakeholders, contributing directly to design decisions, implementation and continuous improvement of the platform.Key responsibilities- Investigate, implement and test best‑in‑class and innovative frontend solutions to improve the platform as a whole- Maintain the existing application and actively propose functional and technical improvements- Deliver high‑quality, well‑structured and maintainable frontend code with a keen eye for detail- Solve complex problems while ensuring consistency, reliability and scalability- Actively participate in Agile / Scrum ceremonies as a team player- Take end‑to‑end ownership of features: you build it, you run it, you own itRequirementsSuccessful candidates typically demonstrate:- A strong analytical mindset, able to interpret data flows and performance and translate them into actionable improvements- Excellent written and verbal communication skills (including technical writing), with the ability to operate confidently in English- A proactive, self‑starting attitude combined with strong collaboration skills- Intrinsic motivation to learn new technologies and share knowledge with colleagues- A strong sense of ownership, prioritising outcomes over output- The ability to align and collaborate within the team rather than working in isolation- A solution‑oriented mindset, with continuous improvement as a natural habit- A keen eye for quality and detail within a complex, security‑sensitive domain- Experience working in Scrum / Agile product teams- A clear “you build it, you run it, you own it” mentalityTechnologiesCore skills (day‑1 credible)Angular Framework (latest versions): production-grade experience with component architecture, services, dependency injection, routing and lifecycle management, including architectural decisions in feature/module design and real-world application structure.TypeScript: advanced types, decorators, interfaces, generics, and modern ES6+ features for robust frontend applicationsNgRx State Management: Store, Effects, Selectors and Entity patterns for managing complex application state and data flow, including state modeling, store design decisions and separation of concerns in production applications.Component Design: Reusable component libraries, design systems, and maintainable UI architecture patternsFrontend Fundamentals: Advanced HTML markup and modern CSS (Grid, Flexbox, animations)UI Components: Angular Material or Material UI for consistent design system implementation and accessible user interfacesVersion Control: Advanced Git workflows, branching strategies, code review processes, and collaborative development practices.Strong plus (expected to grow into quickly)CI/CD Pipelines: Understanding of automated testing, build optimization, deployment strategies, and continuous integration workflowsContainerization: Practical experience with Docker for development environments and/or Kubernetes for scalable deployment orchestrationUnit Testing: Jasmine/Karma testing suite for component testing, service testing, and test-driven development practicesAPI Standards: JSON:API specification for standardized API communication and data normalization patternsAPI Documentation: OpenAPI/Swagger integration for API-driven development and automated documentation generationFramework Versatility: experience building production features in Vue or React (not experimental or tutorial-based use)Performance Optimization: Bundle optimization, lazy loading, code splitting, and runtime performance tuning