Senior Java Developer

We are currently looking for an experienced Senior Java Developer to join a large-scale international payments environment. You will work on mission-critical payment systems used across Europe, contributing to secure, high-performance and innovative payment solutions.

Location & Working Model

• Belgium-based only (remote work must be performed from Belgium)

• Hybrid model: approximately 50% on-site
  (eg 2 days on-site one week, 3 days the next - non-consecutive days)

• Start date: January 2026

The Role

As a Senior Java Developer (7+ years experience), you will join a core payments squad working in an Agile setup. You will be responsible for designing, developing, testing and maintaining high-value applications within an international payments landscape.

Key Responsibilities

• Design, develop, test and maintain robust and reusable Java applications

• Ensure high code quality, security, automation and performance

• Identify, analyse and resolve technical issues and bugs

• Promote best practices, clean code principles and modern technologies

• Collaborate within cross-functional, multicultural Agile teams

• Contribute to continuous improvement of systems and processes

Required Knowledge & ExperienceEducation & Languages

• Bachelor's or Master's degree in IT or equivalent experience

• Minimum 7 years of Java development experience

• Fluent English (mandatory)

• French is a strong asset

Technical Experience (Mandatory)

• Java & Object-Oriented Programming (7+ years)

• API development & RESTful APIs

• Swagger

• JPA

• JUnit, Cucumber

• Databases: Oracle, PL/SQL, PostgreSQL, MongoDB

• Spring ecosystem: Spring, Spring MVC, Spring Boot

• Maven, Docker

• Secure coding principles

Tools & Platforms

• GitLab

• Jenkins

• SonarQube

• Fortify

• NexusIQ

• IntelliJ

Methodologies

• Strong experience with Agile & Scrum

Business Experience

• Experience within banking and payments environments

• Knowledge of payment products and flows

• Experience analysing and translating payment-related business requirements

• Exposure to international or innovative payment solutions is a plus

Apply today!