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 connected 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.