Senior Java Developer - N4F - (REF5331H)

Stack

Responsibilities

• ▹Designing and developing Java-based backend microservices
• ▹Building scalable distributed systems
• ▹REST and event-driven communication
• ▹Network provisioning and orchestration workflows
• ▹PostgreSQL modeling and optimization
• ▹CI/CD pipelines and containerized environments
• ▹Kubernetes / Docker infrastructure
• ▹Integration of complex business and network management systems
• ▹Technical mentoring and architecture reviews
• ▹Helping modernize legacy telco platforms into modern distributed architectures

Requirements

• ▹Strong experience in Java development and microservice architectures
• ▹Expertise in RESTful API design and event-driven communication (Stargate, Horizon)
• ▹Solid experience with PostgreSQL (data modeling, queries, optimization)
• ▹Ability to design and review software architecture for distributed systems
• ▹Familiarity with CI/CD pipelines and containerization (Docker, Kubernetes)
• ▹Strong analytical and conceptual skills for system design
• ▹Leadership qualities and experience in guiding development teams
• ▹Willingness and capability to integrate AI solutions for process optimization and workflow improvement

Soft skills

What we offer

• ▹Remote working possibility (available only within Hungary due to European taxation regulations)

About the company

Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group with more than 5300 employees, providing a wide portfolio of IT and telecommunications services to large corporations in Germany and other European countries. In 2025 it was named Hungary's most attractive employer according to Randstad's representative survey, received the Best in Educational Cooperation award from HIPA in 2019, and is recognized as one of the most ethical multinational companies. The company continuously develops its sites in Budapest, Debrecen, Pécs and Szeged.