(Senior) Web Developer (Angular/Java) – Fixed-Term Contract

Your mission

Your mission is to develop and maintain intuitive, high-performance web applications and APIs that provide seamless access to OKAPI:Orbits’ end-to-end solutions across Mission Design, Space Situational Awareness (SSA), Space Traffic Management (STM), Flight Dynamics (FD), and Space Traffic Coordination (STC), supporting the entire lifecycle of satellite operators within an initially fixed-term contract until the end of 2026, with a high likelihood of a subsequent extension of up to two additional years, and a planned start date of April 1, 2026. Research shows that women are less likely than men to apply for a position unless they meet 100% of the listed requirements. Please know that if it’s your case — but you are passionate about space technology, building reliable software, and contributing to a more sustainable space environment — we strongly encourage you to apply.

OKAPI:Orbits already brings together a highly diverse team, and we actively continue to strengthen this diversity, as research consistently shows that heterogeneous teams achieve higher performance and drive innovation. Your tasks and responsibilities

Design, develop, and maintain scalable web frontends using Angular and TypeScript as well as backends with Java

Implement and optimize user-friendly, high-performance, and secure web applications for satellite operators and space agencies

Build data-heavy UI components and dashboards using PrimeNG and interactive visualizations with Plotly.js

Integrate and maintain 3D visualization features using CesiumJS where applicable

Design and maintain interfaces between frontend and backend services, including authentication, authorization, and data flow management

Collaborate closely with scientists and engineers to translate complex domain requirements into user-centric software solutions

Take ownership of frontend architecture, performance, usability, and maintainability

Plan and document implementation steps, from technical design to production deployment

Ensure code quality and automated testing with Playwright (E2E) and Karma/Jasmine (unit/integration), and adherence to security and development standards

Contribute to the improvement of CI/CD pipelines, monitoring, and automation to support reliable and continuous delivery

Analyze and resolve complex issues across frontend and data layers with a focus on reliability and user experience

Work in small, interdisciplinary teams, bringing your expertise into cross-functional projects Your profile

Must-haves

Degree in Computer Science, Software Engineering, or a related field, or formal IT specialist training

Several years of hands-on experience building production-grade applications with Angular, TypeScript and Java

Strong understanding of modern web fundamentals, asynchronous programming, and building maintainable frontend architectures

Experience designing and consuming RESTful APIs, including authentication, authorization, and versioning

Solid experience building complex UI components (e.g., PrimeNG) and styling with modern utility approaches (e.g., Tailwind CSS)

Familiarity with Git-based workflows, pull requests, and collaborative code reviews

Proven ability to debug complex issues across frontend and data/integration layers

Focus on clean, maintainable code, testing, and long-term software reliability

Proactive communication and team-oriented mindset, comfortable working in distributed setups

Good English, written and spoken

Nice-to-haves

Experience with Playwright and advanced testing strategies;

experience maintaining Karma/Jasmine test suites

Hands-on experience with CesiumJS or other 3D/WebGL visualization technologies

Familiarity with backend technologies such as Spring Boot / Java and event-driven systems (e.g., Kafka)

Experience with Docker and Kubernetes for local development, deployment, and scaling of services

Knowledge of CI/CD tools and modern observability/monitoring practices

Interest or experience in the space or aerospace domain

Experience in mentoring or technical leadership within agile teams Why us?

Flat hierarchy, small teams, flexible hours

Early ownership, influence technical direction

Training budget for continuous development

German classes via Lingoda

Join space events and conferences, advocate for sustainable space