Fullstack Developer (NodeJS + ReactJS)

About the role

KCS IT is seeking an experienced Fullstack Developer to join its hybrid teams in Portugal. You will work on diverse client projects, creating modern web applications using React, Redux, Next.js and Node.js while collaborating in an Agile environment.

Key responsibilities

• Design and implement reusable UI components and Server‑Driven UI patterns.
• Develop server‑side rendered applications with Next.js and manage real‑time communication via WebSocket or Server‑Sent Events.
• Ensure accessibility compliance and responsive design across all devices.
• Participate in Agile ceremonies, maintain code quality with Git, Jira and CI/CD pipelines.
• Collaborate with cross‑functional teams to deliver client‑focused solutions.

Required profile

• 5+ years of frontend development experience with React and Redux.
• 2+ years of hands‑on work with Next.js and server‑side rendering.
• Proven experience with Node.js and real‑time integrations (WebSocket/SSE).
• Strong communication skills and a very good level of English.

Required skills

• React
• Redux
• Next.js
• Server‑Side Rendering
• Node.js
• WebSocket
• Server‑Sent Events
• UI component development
• Server‑Driven UI
• Accessibility standards
• Responsive design
• Agile methodology
• Jira
• Git
• CI/CD pipelines

What we offer

• Personalized career development and training programs.
• Opportunities to work on international projects, especially in the Benelux region.
• Flexible work modes: hybrid, fully remote or onsite depending on the project.
• Well‑being benefits including nutrition, psychology, medical appointments, yoga and personal training (remote).