Backend Developer

Deutsche Telekom IT Solutions



Company Description
The largest ICT employer in Hungary, Deutsche Telekom IT Solutions (formerly IT-Services Hungary, ITSH) is a subsidiary of the Deutsche Telekom Group. Established in 2006, the company provides a wide portfolio of IT and telecommunications services with more than 5000 employees. ITSH was awarded with the Best in Educational Cooperation prize by HIPA in 2019, acknowledged as one of the most attractive workplaces by PwC Hungary’s independent survey in 2021 and rewarded with the title of 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 Description
This position is filled in the Data Intelligence BU in the Digital Solutions portfolio unit of T-Systems International GmbH. The Data Economy chapter focuses on the development of the Telekom Data Intelligence Hub (DIH). We use the full range of data sources, from IoT to social media, to create sustainable innovation/value from the use of data and AI building blocks. Our solutions are both the memory and the brain of digitization. We use state-of-the-art open-source technologies and reference architectures from the IDS and GAIA-X environment. Always with the goal of bringing our customers’ digitization strategies to success in the context of data spaces. As Germany’s largest digital service provider, we shape the digital world together with our customers in a constantly growing market.

Main tasks

Take part in creating software solutions in scaled agile environment (Less, SAFe) as a member of a cross functional team
Build cloud hosted, micro-services Java/Kotlin applications considering holistic business requirements and implications along the entire development process
Write scalable and maintainable code
Ensure quality in every aspect of your work, from writing and maintaining documentation, doing code reviews or testing
Collaborate with other teams in an international environment (Germany, Hungary, Russia, India)

Required skills

Bachelor or master’s degree in the following areas: Computer science, Engineering or Information Technology or equivalent work experience in IT
3-5 years of overall IT experience of which majorly in technologies involving Java frameworks, SQL and NoSQL databases, Cloud services, Big Data technologies
Expert coding skills specially in Java and other related popular programming languages
Parsing and serializing/reserializing JSON messages
Persistence handling (persisting data at rest), relational databases
Interface implementation REST
Unit testing (JUnit etc.)
Integration of REST interfaces
Security related coding; Token signature verification(JSON Web Signatures), Audit log message integrity protection (Signatures, Linked Data Proofs), Verifiable Credentials, cryptographic protocols
Understanding of Load balancing, service integrity, and operations
Experience developing service/microservice oriented applications
Good English written and oral skills, German is a plus

Additional Information
Nice to have

Understanding of current version of Gaia-X specifications and architecture
Understanding of RDF Data Models

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

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