Senior UI / Frontend Engineer (React) - Portugal

Senior UI / Frontend Engineer (React) Location: Tagus Park, Portugal Work Model: Hybrid – 3 days on-site Contract: Full-time Salary: €50,000–€65,000 gross/year × 14 salaries Relocation: No relocation support provided (Only EU citizens, locals, or candidates with valid Portuguese residency will be considered) About the Role We are looking for a hands-on Senior UI / Frontend Engineer to implement high-quality, modern frontends for our robotics software platform. Working closely with our Frontend Architect, you will turn architectural concepts into production-grade React software.This is a ~80% hands-on development role. We need a strong product engineer who loves writing clean, reusable code every day and wants to stay on a technical track rather than moving into pure architecture, design, or people management.What You'll Do Implement Modern Frontends: Build complex workflows, interactive dashboards, and real-time operational views for an Autonomous Mobile Robot (AMR) platform. Write Production-Ready Code: Translate architectural choices into highly scalable, performant React and TypeScript components. Connect Complex Systems: Integrate REST APIs seamlessly, handling asynchronous data flows, edge cases, error states, and strict user permissions. Drive Engineering Quality: Embed unit, integration, and E2E testing directly into your daily workflow while maintaining pull request discipline and secure coding practices. Collaborate & Mentor: Work side-by-side with our Frontend Architect, Backend, DevOps, and Robotics teams while mentoring junior developers via code reviews. What You'll Need Expert React & TypeScript Skills: Deep, practical experience building complex web applications (not just landing pages, prototypes, or simple CRUD forms). Data-Driven UI Expertise: Proven ability to transform large, dense, and complex datasets into intuitive, real-time KPI visualizations and executive dashboards. Modern Development Stack: Mastery of HTML5, CSS3, adaptive styling, responsive design, modern build tools, package managers, and Git workflows. Testing & CI/CD Discipline: Solid experience with automated frontend testing frameworks and working inside containerized (Docker) development environments. Pragmatic Problem-Solving: A collaborative mindset to challenge or clarify frontend architectures constructively and execute them quickly. Nice-to-Have (Differentiators) Experience with state management and data fetching libraries (e.g., React Query, Redux Toolkit, Zustand, TanStack ecosystem). Hands-on testing experience with tools like Playwright, Cypress, Jest, Vitest, or Testing Library. Data visualization experience using frameworks like D3.js, Recharts, Nivo, ECharts, or AG Grid Enterprise. Background in robotics, IoT, industrial automation, manufacturing, or multi-tenant SaaS cloud platforms. Familiarity with Figma collaboration workflows and accessibility standards (WCAG). Apply / Send your CV: dylan.nyamande@cbtalents.org LinkedIn: https://www.linkedin.com/in/dylan-%E3%83%87-a78965140/