Angular Developer / AI, Python etc. / 1.1.2027 / Remote / Frankfurt / Onshore

Project overview

The use of the masculine form of the word "Consultant / Developer etc." refers to all genders: female/male/diverse.

The services must be provided onshore - meaning from Germany!

Important: Must-have and should-have requirements must be met and evident from the profile.

With this request, we are looking for an Angular developer with experience in AI, Python etc.

OFFER DEADLINE: * o'clock

3.1 Description of Scope

Further development and maintenance of an Angular 22 web application with Standalone Components and signal-based state management

Implementation of data-driven analysis views (time series, maps, tables, image schedules) based on a generic KPI framework with GraphQL connection

Further development of the WebGL-based map visualization (Deck.gl) for railway infrastructures and train movements

Development of editor interfaces for various data objects (schedules, infrastructure, master data, model parameters)

Development and maintenance of reusable UI components (project-internal component library) based on a company-wide design system

Connection of REST and GraphQL interfaces as well as Protobuf-based data communication

Reduction of technical debt: Resolution of architectural violations, migration from Leaflet to Deck.gl, increase in test coverage

Conception and execution of automated quality assurance measures (unit tests, E2E tests)

Development and maintenance of REST endpoints of the Python backend (FastAPI, Pydantic, SQLAlchemy) including database schema migrations (Alembic, PostgreSQL)

Extension of a GraphQL API (Ariadne) for the evaluation of large result data sets via a column-oriented analysis database (Athena/Parquet)

Further development of serverless data pipelines (AWS Lambda, AWS Batch, S3, Glue) for import, ETL, and simulation runs

End-to-end implementation of features across frontend, API, and pipeline (one merge request per E2E feature)

Proven senior experience in Angular development: professional frontend development, primarily with Angular, including a leading role in module and component interfaces and state management strategy

Senior, more than 5 years

Experience in the architectural further development of grown applications across frontend and backend: module and component interfaces, dependency directions, layer boundaries, and resolution of existing architectural violations

Practical experience with agent-based, AI-supported software development (agent mode, not just code auto-completion) with tools like Kiro, Claude Code, Cursor, or OpenCode

2 references

Python web APIs: FastAPI with Pydantic and relational data storage via SQLAlchemy including schema migrations

Experience in the development and implementation of algorithms for railway freight transport planning

1 reference

Requirement

Experience with WebGL-based map and geodata visualization of large, dynamic datasets and interactive editing of map objects (selection, moving, editing of geometries and attributes) with Deck.gl, MapLibre, or Three.js

Experience with complex, performant table representations of large datasets using AG Grid

Experience in developing complex, interactive editor and form interfaces for structured data objects (dynamic forms, validation, dirty/undo handling, conflict resolution during simultaneous editing)

Experience with the performant representation of large datasets using Plotly.js, especially time series and interactive diagrams

Proven depth in the development of productive Python web services with FastAPI or comparable: authentication and role/permission-based authorization (OIDC/JWT, API keys), versioned schema migrations on a live relational database

Experience in implementing UI based on a design system with Figma, including design tokens/variables and the integration of design and code (e.g., Figma Code Connect)

Project language: German

Utilization: 171 days remote and 45 days on-site in Frankfurt

Fee: €580.00 per day for remote and Frankfurt

Payment term:

30 days

• Must-have Requirements
• Should-have Requirements

Project details

01.01.2027

Duration / End

30.12.2027

remote, Frankfurt

If you can support us in this matter, please send us suitable profiles.

Please remember when submitting your offer that we require the CV as a Word file.

Furthermore, please be so kind as to state your fee or confirm the fee requirement.

• Start: 2027-01
• Duration: 12 Monate
• Remote: hybrid
• Location: Frankfurt, Deutschland, DE
• Languages: German