Senior Java Developer (REF4689X)

Company DescriptionAs Hungary’s most attractive employer in 2025 (according to Randstad’s representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries. DT-ITS recieved the Best in Educational Cooperation award from HIPA in 2019, acknowledged as the the Most Ethical Multinational Company in 2019. The company continuously develops its four sites in Budapest, Debrecen, Pécs and Szeged and is looking for skilled IT professionals to join its team.Job DescriptionAbout the ProjectMobilithek (MDP) is Germany’s national access point for mobility data. It provides a central platform to share digital information between mobility providers, infrastructure operators, transport authorities, and information services. Examples include timetables, real-time traffic updates, and rental bike locations. Mobilithek helps shape transport policy, improves road safety, and supports innovation by offering open and secure data exchange.ResponsibilitiesDevelop Java/Kotlin microservices running in the cloud. Write clean, scalable, and maintainable code. Review code, test features, and fix issues. Keep technical documentation up to date. Work closely with colleagues in an international team. Support team members and share knowledge. QualificationsRequired Qualifications5–10 years of IT experience, including Java, databases, and cloud services. At least 3 years of building complex software systems. Strong Java skills is a mandatory. Kotlin is a plus. Hands-on experience with Spring Boot and Spring Cloud. Cloud experience, ideally with Microsoft Azure. Knowledge of microservice architectures and Kubernetes (AKS, EKS). Experience with REST APIs and messaging tools (AMQP, Kafka). Work with SQL and NoSQL databases (PostgreSQL, MySQL/MSSQL, MongoDB). Familiar with DevOps practices, CI/CD pipelines, and Git. Comfortable with Linux basics (console, SSH). Understanding of security tools (VPN, PGP, OpenID Connect). Good English communication skills. German is a plus. Tools like Jira and Confluence are a benefit. Nice-to-HaveKnowledge of Python or another scripting language. Experience with Big Data tools (Hadoop, Cloudera, Azure Data Lakes). Key SkillsJava – OutstandingMicrosoft Azure – AdvancedSpring Boot – ExpertSpring Cloud – ExpertMicroservices – ExpertApache Kafka – BasicKotlin – BasicAdditional Information Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.