Whitehall Resources are currently looking for a Angular Developer.

We are looking for a Senior Frontend Developer to further develop a web-based simulation platform for railway operations, using Angular, data-driven analytical views, interactive editors, and modern visualization components.

Further development and maintenance of an Angular 21 web application using Standalone Components and signal-based state management.
Implementation of data-driven analytical views such as time series, maps, tables, and graphical timetables, based on a generic KPI framework with GraphQL integration.
Further development of WebGL-based map visualization (Deck.gl) for railway infrastructure and train movements.
Development of editor interfaces for various data objects such as timetables, infrastructure, master data, and model parameters.
Development and maintenance of reusable UI components (internal project component library) based on a company-wide design system.
Integration of REST and GraphQL APIs, as well as Protobuf-based data communication.
Reduction of technical debt, including resolving architectural violations, migrating from Leaflet to Deck.gl, and increasing test coverage.
Design and execution of automated quality assurance measures, including unit tests and E2E tests.

Proven senior-level Angular development experience, with more than five years of professional frontend development experience, predominantly with Angular. This should include a key role in module and component design as well as developing a state-management strategy.
Practical experience with modern Angular from version 16 onwards, including Standalone Components, Angular Signals, and signal-based state management such as NgRx SignalStore or comparable solutions.
Practical experience with agentic, AI-assisted software development in Agent Mode, not merely code autocompletion, using tools such as Kiro, Claude Code, Cursor, or comparable tools.
Experience integrating REST and GraphQL APIs into an Angular frontend.
Experience independently designing user interfaces, including the conception of complete views and interaction flows in Figma or a comparable tool, based on an existing design system, followed by implementation in Angular.

Nice-to-Have Skills:

Experience with WebGL-based map and geospatial visualization of large dynamic datasets, including interactive editing of map objects through selection, moving, and editing geometries and attributes, using Deck.gl, MapLibre, Three.js, or comparable technologies.
Experience with high-performance visualization of large datasets using charting libraries such as Plotly.js, D3, ECharts, or comparable libraries, particularly for time series and interactive charts.
Experience developing complex interactive editor and form interfaces for structured data objects, including dynamic forms, validation, dirty/undo handling, and conflict handling during concurrent editing.
Experience with complex, high-performance table displays for large datasets using AG Grid Community, AG Grid Enterprise, or comparable solutions, including virtualization, server-side data models, and custom cell renderers.
Experience with test-driven frontend development and automated testing as an established part of the working methodology, including unit testing with Vitest or Jest and E2E testing with Playwright or comparable tools.
Experience implementing UIs based on a design system with Figma, including working with design tokens and variables and connecting design with code, for example using Figma Code Connect.

Angular Developer

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