Fullstack Developer – Lisbon

About the role

ADENTIS is seeking a Fullstack Developer to join its Lisbon team, working on large‑scale software solutions that serve national clients across strategy, R&D and nearshore services.

Key responsibilities

• Develop and maintain large‑scale web applications.
• Design, implement and integrate RESTful APIs.
• Write clean, efficient code using Ruby, Java, Spring, Spring Boot, React and JavaScript.
• Debug, profile and optimise application performance.
• Create and execute unit and integration tests to ensure quality.

Required profile

• Bachelor’s degree (or equivalent) in Computer Science, IT or Engineering.
• Minimum three years of experience building large‑scale software applications.
• Proven experience in web application development.
• Fluent English communication skills.

Required skills

• Ruby
• Java
• Spring & Spring Boot
• React
• JavaScript
• RESTful API design and integration
• Debugging and performance optimisation
• Unit and integration testing

What we offer

• Work‑life balance and flexible organisational routines.
• Health benefits for employees and families.
• Team‑building events and a network of over 300 partners.
• Continuous training through a professional training and certification centre.
• Personalised monitoring, feedback and career progression.