Java Developer – Banking Sector

About the role

We are looking for a Java Developer to join our Banking sector team in Porto. You will design, build and maintain high‑quality Java applications that support our clients’ financial services, working closely with product owners, designers and analysts.

Key responsibilities

• Design, develop and maintain efficient, reusable, and reliable Java code.
• Participate in code reviews and ensure adherence to best practices and SOLID principles.
• Write unit tests, ensure test coverage and maintain code quality.
• Optimize performance, scalability and database interactions, including writing fine‑tuned SQL and PL/SQL queries for Oracle, SQL Server or MySQL.
• Collaborate with product teams, designers and business analysts to translate requirements into robust solutions.
• Guide junior developers, promote good programming practices and support their technical growth.
• Manage the software lifecycle from conception to production, coordinating releases with minimal impact.
• Ensure security best practices are embedded in the code and protect against vulnerabilities.

Required profile

• Degree or Master’s in Computer Science or a related field.
• At least 3 years of professional Java development experience.
• Strong knowledge of SQL, PL/SQL and relational databases such as Oracle, SQL Server or MySQL.
• Proficiency in English; French is a plus.

Required skills

• Java
• SQL / PL/SQL
• Oracle, SQL Server, MySQL
• SOLID principles
• REST and SOAP web services