Senior Full-Stack Developer – Customer Data at ING · Bruxelles Avenue Marnix (ING)

About this Senior Full-Stack Developer – Customer Data role at ING

ING · Onsite · Bruxelles Avenue Marnix (ING)

Senior Full-Stack Developer – Customer Data

About the Role

We are looking for a technically polyglot Full-Stack Developer to join our Customer Data team. You will be part of a high-impact environment where reliability, scalability, and cross-departmental collaboration are key. Our systems handle critical customer data across multiple business domains, with a strong focus on risk management, resilience, and performance. You’ll work with modern technologies including Kafka, Cassandra, Oracle SQL, CQRS, Axon Framework, Angular, and lit HTML, and contribute to both backend and frontend development.

A Day in the Life of a Senior Full-Stack Developer – Customer Data

• Design solutions that fulfill complex business requirements. • Code smart, efficient, and resilient applications.

• Collaborate across departments to ensure alignment and integration.

• Continuously learn and share knowledge, embedding best practices and lessons learned.

How to succeed

Our biggest expectation is that you’ll stay curious. Keep learning. Take on responsibility.

Requirements are:

• Master’s degree or equivalent experience in Computer Science or IT. • Certifications and/or proven proficiency in software development.

• 8+ years of experience in Agile IT projects.

• Strong expertise in: - Java 21, Spring Boot, Kafka, Maven - knowledge applying CQRS pattern is a plus

• Familiarity with: - CI/CD pipelines using Azure DevOps and GitHub - Monitoring tools like Kibana, Grafana, Prometheus

• Knowledge of additional programming languages (e.g., Python) and a strong willingness to learn new ones.

• Awareness of: - Security & IT Risk - Resilience patterns • Excellent communiication skills in English (written and spoken)

Ready to apply to ING?

Apply to ING

About ING

We’re a global bank with a strong European base, and our more than 60,000 colleagues serve around 38 million customers and corporate clients in over 40 countries. Joining ING means working with friendly and collaborative people towards making a positive impact on people and planet. We believe in empowering the people around us and our customers to stay a step ahead. Working here means having the autonomy to drive progress, helping to create superior customer value and contributing to our ambition of putting sustainability at the heart of everything we do.

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