Frontend Developer – React (Hybrid, Lisbon)

About the role

KCS IT is looking for a talented Frontend Developer with a strong focus on React to join our hybrid team in Lisbon. You will work on modern, responsive web applications for a variety of clients, delivering user‑friendly solutions that meet business needs.

Key responsibilities

• Design and develop scalable front‑end features using React, JavaScript and TypeScript.
• Build responsive UI components, leveraging hooks, state management and best‑practice patterns.
• Integrate front‑end code with REST APIs and ensure smooth data flow.
• Write clean, maintainable HTML and CSS, adhering to accessibility standards.
• Collaborate with back‑end developers, designers and product owners in Agile squads.
• Participate in code reviews, testing, debugging and performance optimisation.

Required profile

• Minimum 3 years of professional experience in front‑end development.
• Strong command of React, JavaScript and TypeScript.
• Proven ability to build modern, responsive web applications.
• Good understanding of HTML, CSS and version control with Git.
• Fluent written and spoken English.
• Effective communication and problem‑solving skills.

Required skills

• React
• JavaScript
• TypeScript
• HTML
• CSS
• Git
• REST APIs
• Next.js (plus)
• Redux or other state‑management libraries (plus)
• Node.js (plus)
• CI/CD pipelines (plus)
• Cloud environments (plus)

What we offer

• Personalised career development aligned with your goals.
• Free training and certification programmes in tech, languages and business.
• Opportunities to work on international projects, especially in the Benelux region.
• Flexible work modes – hybrid, remote or onsite depending on the project.
• Well‑being benefits including nutrition support, psychology sessions, yoga and personal training (remote).