Full Stack Developer (Java and React)

Hexa Consulting; Lisboa; On-site; EUR 45,000 - 75,000; Full time

Benefits offered by this job

Continuous learning

Private health insurance

Mental health support

Flexible work

Family support

Community culture

Exposure to varied IT contexts

Job summary

Hexa Consulting is seeking a Senior Full Stack Developer to join international projects, shaping scalable applications across the stack. You will work on backend services with Java/Spring Boot and on frontend with React, crafting modular components and robust APIs.

Ideal candidates have 5+ years' experience, knowledge of REST APIs, and a good command of English. The role emphasizes collaboration, code quality, and continuous improvement in a dynamic environment.

Qualifications

• 5+ years of experience as a Full Stack Developer.
• Proficiency with Java, Spring, and Spring Boot.
• Experience with React.
• Git and basic CI/CD pipeline concepts.
• Professional working proficiency in English.

Responsibilities

• Develop and maintain back end applications using Java and Spring Boot, implementing scalable and maintainable business logic and integrating REST APIs with internal and external services.
• Develop and maintain front end applications using React and Next.js, building reusable components, integrating backend APIs, and ensuring responsive and user-friendly interfaces.
• Design, implement and maintain REST APIs and SQL-based data solutions, working with relational databases such as MS SQL Server and troubleshooting performance or data-related issues.
• Write and maintain unit and integration tests, investigate and resolve bugs, optimize application performance, and contribute to overall code quality and technical improvements.

Skills

Java

Spring

Spring Boot

React

Git

CI/CD

English

Tools

MS SQL Server

Job description

At Hexa, we are looking for a Full Stack Developer to join one of our international projects, contributing to the development and continuous improvement of modern, scalable applications in a collaborative and dynamic environment.

What you will do

• Develop and maintain back end applications using Java and Spring Boot, implementing scalable and maintainable business logic and integrating REST APIs with internal and external services.
• Develop and maintain front end applications using React and Next.js, building reusable components, integrating backend APIs, and ensuring responsive and user-friendly interfaces.
• Design, implement and maintain REST APIs and SQL-based data solutions, working with relational databases such as MS SQL Server and troubleshooting performance or data-related issues.
• Write and maintain unit and integration tests, investigate and resolve bugs, optimize application performance, and contribute to overall code quality and technical improvements.

What we are looking for

• At least 5 years of experience as a Full Stack Developer.
• Experience with Java, Spring, and Spring Boot.
• Experience with React.
• Git and basic CI/CD pipeline concepts.
• Professional working proficiency in English.

What we offer

• Continuous learning and development opportunities, including support for training and certification throughout your journey.
• Private health insurance from day one, with optional family extension subject to internal policy.
• Confidential mental health support through Hexa's well-being initiatives.
• Flexibility whenever the role and context allow it, supporting sustainable balance across different life stages.
• Family support measures, including childcare-related support subject to internal policy.
• Community moments, shared milestones and a culture of trust, contribution and inclusion.
• Exposure to different IT contexts, teams and business areas, helping you grow your understanding of the technology market.

Equal opportunity

At Hexa, applications are considered based on skills, experience, potential and alignment with the role. We are committed to fair and inclusive recruitment practices, without discrimination, in line with the principles of the Portuguese Diversity Charter.