Java Developer

Role Overview

We are looking for a Senior Java Developer with solid experience in enterprise environments to join a team focused on maintaining, evolving, and integrating critical applications. This role involves working primarily with legacy systems, with a strong emphasis on security and identity integration.

Key Responsibilities

• Develop and maintain backend applications using Java

• Implement and enhance flows using Spring Framework (with a focus on Spring Webflow)

• Design and integrate APIs

• Develop and maintain business logic within the database (Oracle / PL/SQL)

• Integrate applications with authentication and authorization systems (SSO)

• Perform application deployments and provide production support

• Troubleshoot and resolve application issues

• Collaborate with cross-functional teams (development, infrastructure, and security)

Mandatory Requirements

Back-end & Framework

• Strong experience in Java development (5+ years or 4+ years with strong seniority)

• Solid knowledge of Spring Framework

• Experience with Spring Webflow (highly valued)

• Experience in API development and integration

Database

• Proven experience with Oracle and PL/SQL

• Development and maintenance of complex stored procedures

• Business logic implementation at database level

Security & Identity

• Hands-on experience with Single Sign-On (SSO)

• Practical knowledge of protocols:

  • OAuth2

  • OpenID Connect

  • SAML

• Experience integrating with Identity Providers

• Experience with platforms such as Okta or Microsoft Entra ID (Azure AD)

Environment & Operations

• Experience with Linux/Unix environments

• Experience with application servers:

  • Apache Tomcat

  • Apache HTTP Server

• Ability to perform deployments and troubleshooting

Functional Skills

• Experience working in enterprise and legacy environments

• Strong problem-solving and analytical skills

• Experience maintaining and enhancing existing applications

Nice to Have

Tech Stack

• Experience with Spring Boot

• Knowledge of JSP

• Frontend knowledge:

  • JavaScript, jQuery, Bootstrap

  • Angular, Vue, or Ionic

Security

• Knowledge of SSL/TLS

• Experience with digital certificates

• Familiarity with keystores and truststores

• Basic understanding of encryption (AES, RSA, SHA)

Context & Experience

• Previous experience in banking or insurance

• Experience in complex enterprise environments

• Experience with SSO migration (local to centralized)

Additional Skills

• Ability to adapt to corporate standards

• Strong communication and teamwork skills

• Experience collaborating with multiple technical teams

Work Model

• Hybrid model (up to 3 days per week on-site in Lisbon)
  

What can you expect from us?

Mind-blowing workplace culture. You will be integrated in a professional, dynamic and collaborative team.

100% Remote opportunities

We want you to have the flexibility to work where you feel most comfortable and productive.

International Career

• You can expect professional growth and to be connect with the world.

• We are represented in Portugal, Belgium, Luxembourg, and Denmark.

• And with projects in many other countries: Netherlands, Luxembourg, Singapore and in the United States of America (and a lot more is coming…)

Extra Benefits & Perks

If you wish to work with us and you are outside European Union (good news…) we are a Tech Visa Company, We will help!

As a plus, we provide Health and Life Insurance.