Java Developer (Fullstack)

Fyld; Porto; On-site; EUR 45,000 - 65,000; Full time

Job summary

Fyld is a Portuguese consulting company that operates with transparency, respect, and a focus on everyone's growth. We are hiring a Java Fullstack Developer with a strong backend foundation to build modern web applications and scalable software solutions.

By joining Fyld, you'll be part of a team where every member is challenged to innovate, collaborate and grow. You will work with Java, Spring, REST APIs, frontend technologies, and relational databases to deliver real impact for clients.

Qualifications

• Degree in Computer Science, Software Engineering, Information Technology, or a related field.
• Minimum of 3 years of professional experience in Java development.
• Strong proficiency in Java and object-oriented programming.
• Professional experience with Spring and Spring Boot.
• Experience with Hibernate / JPA and ORM technologies.
• Experience designing and developing REST APIs and backend services.
• Good understanding of software architecture, clean code and development best practices.
• Professional experience with at least one modern frontend framework, such as React or Angular.
• Good knowledge of JavaScript and TypeScript.
• Good knowledge of HTML5 and CSS3.
• Experience working with relational databases such as PostgreSQL, Oracle or MySQL.
• Good knowledge of SQL and database design principles.
• Experience with unit and integration testing, using tools such as JUnit and Mockito.
• Good knowledge of Git and version control practices.
• Experience with Maven or Gradle.
• Familiarity with CI/CD practices.
• Understanding of API security and web application security principles.
• Ability to troubleshoot, optimize and maintain applications.
• Strong analytical and problem-solving skills, and ability to work effectively in Agile development teams.
• Fluency in English.

Skills

Java

Spring/Spring Boot

Hibernate/JPA

REST APIs

Frontend (React/Angular)

JavaScript/TypeScript

HTML/CSS

Relational DBs

SQL

Unit/Integration Tests

Git

Maven/Gradle

CI/CD

Security best practices

Agile

English fluency

Education

Degree in CS / Software Engineering

Tools

Spring

Hibernate

JPA

Maven/Gradle

Git

Docker

Kubernetes

Kafka/RabbitMQ

Redis

Job description

Fyld is hiring: Java Fullstack Developer

At Fyld, we believe the future is built with people, technology, and strong values.

We are a Portuguese consulting company that operates with transparency, respect, and a focus on everyone's growth.

Here, every project is an opportunity to build real, scalable, and high-quality software solutions.

Our philosophy?

Code for Big Solutions

— because we don't just build software to make things work, we build solutions that create real impact.

We're looking for an experienced

Java Fullstack Developer

with a strong backend foundation and solid experience building modern web applications.

By joining Fyld, you'll be part of a team where every member is challenged to innovate, collaborate and grow.

Your Profile

• Degree in Computer Science, Software Engineering, Information Technology, or a related field
• Minimum of 3 years of professional experience in Java development
• Strong proficiency in Java and object-oriented programming
• Professional experience with Spring and Spring Boot
• Experience with Hibernate / JPA and ORM technologies
• Experience designing and developing REST APIs and backend services
• Good understanding of software architecture, clean code and development best practices
• Professional experience with at least one modern frontend framework, such as React or Angular
• Good knowledge of JavaScript and TypeScript
• Good knowledge of HTML5 and CSS3
• Experience working with relational databases such as PostgreSQL, Oracle or MySQL
• Good knowledge of SQL and database design principles
• Experience with unit and integration testing, using tools such as JUnit and Mockito
• Good knowledge of Git and version control practices
• Experience with Maven or Gradle
• Familiarity with CI/CD practices
• Understanding of API security and web application security principles
• Ability to troubleshoot, optimize and maintain applications
• Strong analytical and problem-solving skillsAbility to work effectively in Agile development teams
• Fluency in English

Nice To Have

• Experience with React or Angular
• Knowledge of microservices architectures
• Experience with Docker and Kubernetes
• Experience with Kafka, RabbitMQ or similar messaging technologies
• Knowledge of Redis or other caching technologies
• Experience with cloud platforms, such as AWS, Azure or GCP
• Experience with NoSQL databases
• Knowledge of CI/CD and DevOps practices

Our Values

• Critical thinking and autonomy
• Focus on meaningful solutions and real results
• Respect, transparency, and continuous growth

What You'll Find At Fyld

• A collaborative team that values individual progress
• Access to continuous training and certifications
• A culture of proximity, respect, and recognition
• Challenging, purpose-driven projects where your expertise as a Java Fullstack Developer has real impact