Frontend & Mobile Developer

About the role

We are seeking a Frontend & Mobile Developer to join KCS IT’s Porto hub. The role is hybrid, allowing you to collaborate on‑site while also working remotely. You will build and maintain modern web and mobile applications for a variety of clients across different sectors.

Key responsibilities

• Develop responsive user interfaces using React and React Native.
• Implement state management with Redux, React Query or similar libraries.
• Consume REST APIs, handle JSON data and integrate with Axios.
• Write unit and end‑to‑end tests with Jest, Detox and React Testing Library.
• Participate in code reviews, CI/CD pipelines and Agile ceremonies.
• Collaborate with cross‑functional teams to deliver high‑quality features on schedule.

Required profile

• Bachelor’s degree in Computer Science, Engineering or a related field.
• Mid‑to‑senior level experience with React and React Native.
• Strong problem‑solving abilities and attention to detail.
• Good English communication skills.

Required skills

• JavaScript
• TypeScript
• React
• React Native
• Redux / React Query
• REST APIs, JSON, Axios
• Git
• CI/CD pipelines
• Agile methodologies
• Jest, Detox, React Testing Library

What we offer

• Personalised career development and training programmes.
• Opportunities to work on international projects in the Benelux region.
• Flexible hybrid work model.
• Well‑being benefits such as nutrition, psychology, medical appointments, yoga and personal training (remote).