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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Engineer - **Company:** ITSync - **Location:** Amsterdam, Netherlands - **Experience:** Expert - **Salary:** €4,597.0 - €5,892.0 - **Contract:** Temporary to permanent - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Automation of Tests, Microsoft Azure, Banking Software, Continuous Delivery, DevOps, Domain Name System (DNS), Elasticsearch, Apache Maven, NoSQL, OpenShift, Public Key Infrastructure, Scrum Methodology, SQL Databases, Web Applications, Computer Networking Systems, Performance Testing, Spring-boot, Gatling, Kubernetes, Deployment Automation, Cassandra, Microsoft Tfs, Apache Kafka, Front End Software Development, Checkmarx, Asynchronous Programming, Functional Programming, Kibana, Restful APIs, Atlassian Bamboo, Microservices - **Published:** September 23, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=dee31a74b5b31252 ## About the Role * Strong, up-to-date hands-on knowledge of Java 21 (LTS), including practical experience with the Java Stream API. * Working knowledge of functional programming concepts. * Hands-on experience with Kafka and asynchronous communication in distributed IT environments. * Experience with Spring Boot / recent Spring versions. * Strong knowledge of microservices. * Strong experience with Azure and Azure DevOps. * Experience with NoSQL and SQL databases. * Knowledge of performance, capacity and availability, including Elasticsearch and Kibana. * Strong knowledge of networking, including DNS and HTTP. * Strong knowledge of security, including TLS and PKI. * Experience working in an Agile/Scrum/DevOps environment. * Strong analytical skills and conceptual/architectural understanding. * The ability to quickly understand new technical concepts. * A passion for automation and continuous improvement. * Strong technical communication skills and the ability to engage with customers. * A team-oriented mindset and willingness to share knowledge and learn from different perspectives. A professional, secure and careful way of working. * Nice to have It is a plus if you have experience with: * Performance testing using Gatling. * Test automation, continuous delivery, deployment tools and pipelines. * Azure Repos, Azure Pipelines, OpenShift, Kubernetes, Checkmarx and Azure Artifacts. * Working in multidisciplinary and Agile teams. * Transferring knowledge through presentations, workshops and documentation. * Helping establish new technical standards and ways of working. * Application risk controls and proactively preventing security and operational risks. ## Description For ING, we are looking for a highly skilled Senior Java Engineer to help build the next generation of frontend delivery services. You will work on a platform that is used globally within ING. We are specifically looking for an engineer with strong, up-to-date hands-on knowledge of Java 21, including the Stream API and functional programming concepts, combined with experience in Spring Boot, microservices and Kafka., You will work within the Retail & Banking Technology domain as part of a multidisciplinary team working on ING's core platform. The team is developing a platform for building and providing Web Components that are used globally within ING., As a Senior Java Engineer, you will be involved throughout the entire development lifecycle, from refinement and development to deployment, monitoring and production support., * Develop and improve frontend delivery services using Java. * Contribute to the migration of the Frontend Controller to Java. * Be involved in the entire development lifecycle, from refinement to monitoring in production. * Maintain and support existing products. * Provide support and contribute to incident management. * Participate in a 24/7 on-call rotation once every 4 to 8 weeks. * Create and maintain product risk documentation. * Contribute to a realistic roadmap for the squad. * Help create a safe and productive working environment. * Support colleagues and share knowledge within the team. * Become an ING Security Champion for the team Tech stack The team works with technologies and frameworks including: Java | REST APIs | Kafka | Cassandra | Azure DevOps | Maven | Elasticsearch | OpenShift | Kubernetes Within Azure DevOps, the team uses Repos, Pipelines, Boards and Artifacts. The applications run on a Container Hosting Platform using OpenShift and Kubernetes, with new features delivered into production every two weeks. ## Related Videos - [Shifting Stress to Progress— Understanding DevOps to do DevOps Better](https://www.wearedevelopers.com/videos/268-shifting-stress-to-progress-understanding-devops-to-do-devops-better) - [Debug a Kubernetes Operator](https://www.wearedevelopers.com/videos/487-debug-a-kubernetes-operator) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Add Location-based Searching to Site with ElasticSearch](https://www.wearedevelopers.com/videos/77-add-location-based-searching-to-site-with-elasticsearch) ## Related Articles - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)