UI / Frontend Engineer Tech Lead

About the Position

We are seeking a UI / Frontend Engineer Tech Lead to join our robotics software company based in Lisbon, Portugal. This role is focused on developing React applications for autonomous mobile robots, translating architectural concepts into production-ready applications for complex operational workflows.

Responsibilities

• Develop modern React applications following architectural guidelines
• Build complex workflows for fleet management, deployment, monitoring, and intralogistics
• Develop reusable UI components and contribute to a shared design system
• Improve software quality through automated testing, code reviews, and refactoring
• Integrate frontend applications with backend APIs
• Optimize frontend performance and usability
• Mentor junior developers and lead by example through hands-on coding

Requirements

• 8+ years of advanced expertise in React, TypeScript, and modern JavaScript
• 3+ years of experience working as a Technical Lead
• Proficiency in Tailwind CSS, HTML5, CSS3, responsive design, adaptive UI development, and component-driven development
• Deep experience handling real-time, high-frequency WebSockets, as well as REST and GraphQL APIs
• Proven ability to optimize browser rendering and UI performance, processing fast-streaming data without blocking the UI thread
• Experience building operational monitoring interfaces, analytics views, KPI visualizations, and data-dense dashboards
• Demonstrated knowledge of core software engineering practices, including clean code, maintainability, refactoring, secure coding, performance optimization, error handling, and observability
• Hands-on experience with automated testing practices, including unit testing, integration testing, and end-to-end testing (e.g., Jest/Vitest, Cypress, or Playwright)
• Proficiency with modern development tools, including Git, pull requests, CI/CD pipelines, modern build tools, package managers, and dependency management
• Experience working with Docker and containerized development environments within Agile product teams
• Fluency in English

Nice to Have

• Experience with robotics, industrial software, logistics, warehouse automation, manufacturing, or IoT platforms
• Design systems, component libraries, Storybook
• Accessibility (WCAG) and Figma collaboration
• React Query, Redux Toolkit, Zustand, TanStack
• Playwright, Cypress, Jest, Vitest, Testing Library
• Cloud-native applications and Kubernetes

We Offer

• A project that matches your skills and ambitions, as well as your preferences for working policies and culture
• A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income
• An empowering and respectful work culture enriched with social and learning events
• A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN

About the Company

At KWAN, we connect IT professionals with projects that match their skills, professional experience, and goals. We offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

What You Can Expect as a KWANer

• Respect isn’t optional here: You’re trusted to deliver and supported to speak up.
• Dedicated People Experience Partner: Someone accountable for your growth, not your allocation.
• Continuous learning, built in: Learning that keeps pace with the systems you build.
• Recognition that’s visible: Your impact doesn’t go unnoticed. Through our Rocket Points System, we constantly recognize your contributions.
• A culture you can feel: From movie and quiz nights to dinners and our annual summer gathering, we don’t just work together - we build real connections.
• Flexible spaces to work your way: Remote-first, with physical hubs when you want connection.

Didn't find your mission yet?

Strong profiles don’t always match timing. That doesn’t mean there isn’t alignment. Tell us about you. We review every application. If there’s alignment, we won’t let it get lost in a database.

Grab this opportunity, apply now!