Senior Full-Stack Developer – Customer Data

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.

About ING

• Our systems handle critical customer data across multiple business domains, with a strong focus on risk management, resilience, and performance.
• How to succeed Our biggest expectation is that you’ll stay curious.
• Keep learning.

Responsibilities

• 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.
• Take on responsibility.

Requirements

• 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)