Senior Java Developer - N4F -

Stack

Responsibilities

• ▹Design and develop Java-based backend microservices
• ▹Build scalable distributed systems
• ▹Implement REST and event-driven communication
• ▹Work on network provisioning and orchestration workflows
• ▹PostgreSQL data modeling and optimization
• ▹Manage CI/CD pipelines and containerized environments
• ▹Operate Kubernetes / Docker infrastructure
• ▹Integrate complex business and network management systems
• ▹Provide technical mentoring and lead architecture reviews
• ▹Help 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 guiding development teams
• ▹Willingness to integrate AI solutions for process optimization and workflow improvement

Soft skills

About the company

Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group, delivering a broad portfolio of IT and telecommunications services with more than 5,300 employees to large corporate clients in Germany and across Europe. Ranked among Hungary's most attractive employers in 2025 (Randstad survey), the company keeps growing its sites in Budapest, Debrecen, Pécs and Szeged. The role builds and modernizes Deutsche Telekom's network management and provisioning ecosystem, supporting large-scale telco infrastructure including 5G rollout, FTTH/FTTC broadband provisioning, IP Transit services, distributed network orchestration and machine-to-machine communication workflows in a mission-critical telco environment.