Java Development Engineer

Your day to day

Even if you start your day from the comfort of your home or drink your morning coffee in our office garden, your day will be quite similar when comes to tasks. Here are your daily responsibilities:

• Work on user stories that have been broken down from features;
• Design, develop, and maintain Java‑based real‑time processing components;
• Implement and maintain message driven integrations (EMS, MQ, Kafka, APIs);
• Work with ISO 20022 payment messages (e.g. pacs.008, pacs.002, camt messages);
• Ensure end‑to‑end ownership of user stories: analysis, development, testing, release, and production support;
• Participate in incident analysis, root cause investigations, and production improvements;
• Collaborate closely with SRE, product owners, and other global engineering teams;
• Contribute to non‑functional requirements: performance, resilience, scalability, security;
• Ensure compliance with ING IT Risk, audit, and security requirements;
• Participate in Scrum ceremonies (standups, refinements, reviews, retrospectives);
• Demo delivered functionality to stakeholders when required.

What you’ll bring to the team

• Experience:
  • 5+ years of experience of java development (Java 21 and Java 25);
  • Strong understanding of Spring framework – experience working with Spring Boot and Spring Batch, concurrent/thread-safe programming;
  • Experienced working with distributed systems works;
  • Understanding of clustering technologies like Cassandra;
  • Understanding/work exposure to Kafka;
  • Experience working on CI/CD tools - any would you do; we are going to use AzDO;
  • Experience with containers (Docker, docker-compose, Kubernetes);
  • Some experience with XML, XSL, XSD;
  • Experience working with TDD and BDD (Cucumber and Gerkin);
  • Good communication skills with an appetite to receive feedback whether it is positive or used for improvements;
  • Experience in SCRUM with a strong preference for the agile way of working;
  • Security by design.
• Nice to have:
  • Experience/Knowledge of various Java Frameworks;
  • Understanding of messaging platforms (i.e., Kafka, EMS, MaaS, ActiveMQ and/or IBM MQ);
  • Exposure to performance testing and fixing performance related issues;
  • Exposure to observability tools (Prometheus, Grafana, logging/alerting);
• Knowledge of ISO 20022 standards;
• Some project experience in financial market group treasury;
• Experience working with multi-location teams;
• Foreign languages: English (advanced);
• Education: nice to have bachelor’s degree (or higher) in an IT related field.

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