Data Engineer (m/f/d)

Job ID: 744000154639109

Data Engineer (m/f/d)

Budapest, Debrecen, Pécs, Szeged

Professional

Regular

Deutsche Telekom ITTC Hungary Kft.

Your Task

As a Data Engineer, you will be responsible for developing and operating data pipelines and building data layers in OneDataLake (ODL) and the Central Data Store Consumer (CDSC). You will work within the Data Domain Consumer, which focuses on Deutsche Telekom's private customers to create exceptional consumer experiences by harnessing and analyzing data to drive insights-based decision-making.

Responsibilities

• Develop and operate data pipelines and build data layers in OneDataLake (ODL) and 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
• Provide personalized customer dialogue at every touchpoint with omni-channel, data-driven actions and offers to increase customer lifetime value
• Establish and maintain a single source of truth around customers
• Ensure a unified data flow of TV-relevant data across different systems to enable holistic analytics with respect to usage, performance, and customer experience
• Support data analytics use cases for digital touchpoints of the German NatCo
• Enable and support generative AI use cases, including Telekom-specific large language model (LLM) adoptions

Your Profile

We are seeking a qualified Data Engineer with extensive experience in big data pipelines, strong proficiency in Python, SQL, and PySpark, and proven ability to design and operate data pipelines in production environments within cloud-based ecosystems.

Must Have Skills

• Minimum 3+ years of professional experience as a Data Engineer
• Proven expertise in big data pipelines and data processing
• Advanced proficiency in SQL for hands-on data transformation and pipeline development
• Advanced proficiency in Python for hands-on data transformation and pipeline development
• Advanced proficiency in PySpark for hands-on data transformation and pipeline development
• Demonstrated experience with Git version control
• Demonstrated experience with CI/CD practices
• Strong capability to design data pipelines in production environments
• Strong capability to build data pipelines in production environments
• Strong capability to operate data pipelines in production environments
• Strong capability to troubleshoot data pipelines in production environments
• Proven ability to understand complex data structures
• Proven ability to transform complex data structures into required structural formats
• Business-fluent English language skills
• Practical, hands-on approach to problem-solving
• Ability to quickly assimilate complex data environments and deliver solutions
• Experience integrating data preparations into managed processes
• Experience implementing Data Vault integrations
• Familiarity with data visualization libraries such as Pandas
• Familiarity with data visualization libraries such as Matplotlib
• Familiarity with data visualization libraries such as Seaborn
• Familiarity with data visualization libraries such as Bokeh
• Familiarity with data visualization libraries such as Plotly

Nice to Have Skills

• 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 within enterprise environments
• Experience with data exploration within enterprise environments
• Experience with data architecture within enterprise environments
• German language proficiency

About Us

As Hungary's most attractive employer in 2025 (according to Randstad's representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries.

DT-ITS received the Best in Educational Cooperation award from HIPA in 2019, acknowledged as 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.

Company Policies

• Remote working possibility is only available within Hungary due to European taxation regulation