(Senior) Full-stack Developer (Next.js / Node.js)

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. This position is employed through OKAPI:Orbits’ Spanish legal entity.

You design and implement elegant user interfaces and robust service integrations that connect complex space-data pipelines with an accessible, reliable user experience.
You work on the systems that enable satellite operators and space agencies to visualize, plan, and manage their missions efficiently in an increasingly dynamic orbital environment.
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
• 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 and TypeScript
• 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

• 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
• Onboarding in Braunschweig, afterwards remote from Spain
• Early ownership, influence technical direction
• Training budget for continuous development
• German classes via Lingoda
• Join space events and conferences, advocate for sustainable space