Frontend Developer - React.js

Portugal, PT
Mid-level (2-3 Years)
Hybrid
Not Accepting Candidates Living Abroad No Relocation Package Available English Required Portuguese Required

We are looking for a Frontend Developer - React.js to work remotely who's eager to embark on an exciting new opportunity!

What is this challenge about:

  • Design and develop responsive, high-performance user interfaces using React.js;
  • Translate UX/UI designs and functional requirements into clean, reusable code;
  • Apply frontend architecture best practices (componentization, separation of concerns, state management);
  • Write unit tests and component tests to ensure code reliability and prevent regressions;
  • Participate in code reviews and enforce coding standards;
  • Use GitLab for version control, merge requests, and CI/CD pipelines;
  • Collaborate with backend teams to integrate REST APIs and asynchronous services;
  • Optimize applications for performance, accessibility, and security;
  • Actively contribute to continuous improvement of development processes and tooling.
  • Strong experience with React.js (functional components, hooks);
  • 4+ years of professional experience with JavaScript and JavaScript frameworks (React, Angular, Ext, or Vue, with React and Ext preferable);
  • Solid understanding of HTML5, CSS3, and modern layout techniques (Flexbox, Grid);
  • Experience with Git and GitLab workflows (branches, merge requests, CI pipelines);
  • Strong experience in unit testing (Jest, React Testing Library, or equivalent);
  • Knowledge of frontend development best practices: clean code, maintainability, reusable components, proper state and lifecycle management, error handling and logging;
  • Experience with CI/CD pipelines in GitLab;
  • Familiarity with linting and quality tools (ESLint, Prettier) (Plus);
  • Knowledge of accessibility standards (WCAG) (Plus);
  • Experience with performance optimization and browser debugging tools (Plus);
  • Exposure to Agile / Scrum methodologies (Plus).
  • Candidates must be residing already in Portugal.

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 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.

“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!

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.

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We review every application. If there’s alignment, we won’t let it get lost in a database.