Senior Developer (REF5631M)

As 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 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. Department and Project This position is within the Tolling Services team of Deutsche Telekom IT Solutions Hungary. The team consists of IT professionals specializing in electronic road-charging solutions. Together with our partners, we develop and operate intelligent, kilometer-based tolling systems for international customers, covering the entire business process (vehicle registrations, country booking, providing On-Board Units, position data transmission, charge calculation, and fleet billing). Leveraging digital intelligence and advanced technology, our tolling solutions facilitate seamless mobility across Europe. The team aims to enhance existing services and expand into new domains. As part of an international team collaborating with T-Systems International, you will play a key role in supporting our customers with cutting-edge tolling solutions. Main tasks As a Developer: Develop, maintain, and enhance microservice-based applications using Java and Quarkus, ensuring high performance, scalability, and reliability. Operate and support production environments running on Kubernetes, including deployment automation, monitoring, troubleshooting, and incident resolution. Design and maintain integrations with Kafka, MongoDB, and external systems using Apache CXF-based services and APIs. Implement and improve CI/CD pipelines using Jenkins, automate operational processes with Linux and Bash scripting, and contribute to infrastructure reliability. Collaborate closely with business and technical stakeholders to ensure smooth operation of tolling-related systems, perform root cause analysis, and drive continuous improvements across development and operations. Background and required skills: At least 5 years of experience in Software Development Java Quarkus Kubernetes MongoDB Kafka Apache CXF Framework Linux + Bash Jenkins Team player attitude Experience working in agile Collaboration with Jira and Confluence Nice to have : AWS MongoDB Atlas Cloud Citrus Framework Reactive programming Grafana Prometheus OpenSearch Postgres Gitlab/ArgoCD Advantage: German language knowledge * Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.