Java Developer – Billing Systems (REF5676S)

Join a team responsible for one of the most business-critical areas within Deutsche Telekoms international group: billing systems. We deliver accurate reliable and flexibly configurable billing for fixed-line and mobile networks as well as mobile service providers serving millions of customers.

Were actively working to merge fixed-line and mobile billing into a single modern platform while gradually retiring legacy systems. That means you wont be maintaining a static legacy-only system youll be part of a continuously evolving architecture undergoing real modernization.

Your responsibilities will include:

• Developing software solutions and ensuring operational stability within an agile project setup
• Coordinating in an agile environment with the involved business units
• Analyzing and processing requirement documents
• Direct coordination with business departments and internal engineering teams
• Contributing to the implementation of new business and IT initiatives
• Analyzing and resolving production issues

Qualifications :

• Experience with agile software development
• Java Spring Boot
• Web technologies (e.g. JSON) with a focus on backend development
• Experience with cloud platforms (AWS CaaS)
• Familiarity with development tools such as GitLab Docker Kubernetes IntelliJ
• Experience implementing RESTful services and microservices; familiarity with TMF APIs is a plus
• Database expertise ideally MongoDB Oracle DB or similar
• Frontend development experience
• Willingness to get familiar with a complex software landscape
• Python
• Experience with AI development tools
• Strong analytical and communication skills in both written and spoken English
• German language skills are a strong plus and will make onboarding into the team significantly easier however they are not a hard requirement and candidates without German are still very welcome to apply

Additional Information :

• Work on a large-scale system modernization project within an international corporate environment
• A modern cloud-native tech stack (AWS Kubernetes)
• Production-grade business-critical systems with real impact on customer experience
• A collaborative agile team culture

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.

Remote Work :

No

Employment Type :

Full-time