Senior Fullstack Engineer - Fleet UI

Senior Fullstack Engineer - Fleet UI ROLE HIGHLIGHTS: • Senior Fullstack Engineer • Location: Espoo • Department: Engineering, Fleet Control and Communications • Reports to: Engineering Manager, Fleet UI • Employment type: Permanent • Workplace model: Hybrid • Employment is subject to applicable security screening (incl. SUPO, where required) WHY THIS ROLE MATTERS: As a Senior Fullstack Engineer in the Fleet UI team, you will be building a mission-critical system used by satellite operators. The problems are technically rich: managing satellite configurations, visualizing orbits in 3D, managing passes across a global network of ground stations, automating mission operations, and more. You will work in a domain where the UI decisions directly impact satellite mission outcomes. WHO WE ARE ICEYE delivers space-based intelligence, surveillance, and reconnaissance (ISR) capabilities to governments and allied nations. This includes sovereign and turnkey ISR missions leveraging ICEYE’s world-leading synthetic aperture radar (SAR) satellite technology, as well as access to data from the world’s largest SAR satellite constellation. These capabilities enable partners to detect and respond to critical changes anywhere on Earth with unprecedented speed and accuracy – day or night and in any weather, supported by ultra high-resolution imagery and high-frequency revisits. As a trusted partner for defense, intelligence, security, and maritime domain awareness, ICEYE’s near real-time data creates a tactical advantage for mission-critical operations. Designed for dual use, the platform also serves civil protection and commercial users for natural-catastrophe intelligence, insurance, maritime monitoring (including oil-spill detection), and finance, contributing to global security and community resilience. ICEYE is headquartered in Finland and operates globally across Europe, North America, the Middle East, and Asia-Pacific. We have more than 900 employees, united by a shared vision: improving life on Earth by becoming the global source of truth in Earth Observation. YOUR DAY-TO-DAY RESPONSIBILITIES • Build and maintain features across a React + TypeScript project serving real-time satellite operations • Collaborate closely with a UI/UX designer in developing sophisticated UI components and data visualization tools, including timeline views, 3D globe rendering (Cesium), and pass planning interfaces • Integrate with multiple backend services via GraphQL and REST and collaborate with backend teams in shaping and developing new services • Drive frontend architecture decisions — state management strategy, component design, performance optimization • Support the team with DevOps work across multiple environments — including managing Docker-based deployments, configuring environment-specific runtime settings, and contributing to release workflows • Write and maintain unit tests (Jest + Testing Library) and end-to-end tests (Playwright) • Participate in code reviews, uphold coding standards, and mentor engineers on best practices • Contribute to CI/CD pipelines and oversee migration from Webpack 5 to Vite WHAT WE’RE LOOKING FOR Must haves: • 5+ years of professional experience building fullstack production-grade applications using React, TypeScript (ES6+), and Node • Experience building backend services using frameworks such as Django, FastAPI, or Flask • Strong understanding of component-based architecture, modern React patterns, and state management approaches • Experience designing, developing, and consuming RESTful and GraphQL APIs • Solid testing discipline, including unit and end-to-end testing with tools such as Jest and Playwright • Experience with modern frontend tooling and build systems such as Vite, Webpack, and npm • Proficiency with Git and collaborative development workflows • Strong problem-solving skills and ability to debug complex, cross-layer issues • Understanding of web application security best practices • Relevant hi ... (truncated, view full listing at source)