UI Frontend Engineer Tech Lead

We are looking for a UI Frontend Engineer Tech Lead in Lisbon who's eager to embark on an exciting new opportunity!

About KWAN

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

What is this challenge about

• 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.
• Optimise frontend performance and usability.
• Mentor junior developers and lead by example through hands-on coding.

What we are looking for

• 8+ years of advanced expertise in React, TypeScript, and modern JavaScript.
• 3+ years of experience working as a Tech 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.

Do you meet most of the position requirements? Then grab this opportunity and apply now!

What 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.

• A relocation package and visa sponsorship for all our international hires.

Some Words From Our Colleagues

“At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.”

- Luis Caldeira, DevOps @ KWAN

Grab this opportunity, apply now!