Data Engineer (REF5635Y)

Stack

Responsibilities

• ▹Develop and operate data pipelines and build data layers in OneDataLake (ODL), the Central Data Store Consumer (CDSC)
• ▹Balance business and IT demands to build modern and efficient pipelines in public cloud environments
• ▹Integrate data preparations into managed processes
• ▹Implement data integrations in Data Vault
• ▹Implement data exports and data operations, using Python, PySpark, SQL, libraries such as Pandas, Matplotlib, Seaborn, Bokeh, Plotly, and pipelines based on GitLab (Magenta CI/CD)

Requirements

• ▹Minimum 3+ years of professional experience as a Data Engineer with proven expertise in big data pipelines and data processing
• ▹Advanced proficiency in SQL, Python, and PySpark for hands-on data transformation and pipeline development
• ▹Demonstrated experience with Git version control and CI/CD practices
• ▹Strong capability to design, build, operate, and troubleshoot data pipelines in production environments
• ▹Proven ability to understand complex data structures and transform them into required structural formats
• ▹Business-fluent English language skills

Nice to have

• ▹Senior-level experience or equivalent seniority in data engineering
• ▹Hands-on experience with Google Cloud Platform (GCP) technology stack
• ▹Familiarity with Hadoop ecosystem and related big data technologies
• ▹Experience with data modelling, exploration, and architecture within enterprise environments
• ▹German language proficiency

Soft skills

About the company

Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group and was named Hungary's most attractive employer in 2025 (according to a representative survey by Randstad). The company provides a wide portfolio of IT and telecommunications services with more than 5,300 employees, serving hundreds of large corporate customers in Germany and other European countries. In 2019, DT-ITS received the Best in Educational Cooperation award from HIPA and was recognized as the Most Ethical Multinational Company. The company continuously develops its four sites in Budapest, Debrecen, Pécs, and Szeged, and is constantly looking for skilled IT professionals to join its team.