Software Engineer Data

Stack

Responsibilities

• ▹Design, implement and maintain scalable BI and data processing solutions
• ▹Develop and operate ETL pipelines for customer, booking and product data
• ▹Integrate data from various file- and REST-based Magenta APIs (POM, PIM, CDP, PCM, etc.)
• ▹Generate and deliver reports and datasets for multiple downstream consumers (ODE, Billing, Kibana)
• ▹Collaborate closely with stakeholders across analytics, billing and platform teams
• ▹Contribute to setting up and shaping a newly formed team, including technical standards and best practices
• ▹Ensure data quality, reliability and performance across the BI component
• ▹Support cloud-based operations and monitoring in an AWS environment

Requirements

• ▹Strong experience with ETL processes
• ▹SQL
• ▹Python
• ▹Docker
• ▹GitLab
• ▹Apache Airflow
• ▹Apache Cassandra
• ▹Kibana
• ▹General AWS knowledge (S3, DataSync, Athena Notebook, Aurora, ECS, ECR)
• ▹PySpark
• ▹Experience with a data hub / data integration platform (Datendrehscheibe)
• ▹REST APIs (e.g. TARDIS / REST)

Nice to have

• ▹Experience in BI or billing-related data domains
• ▹Background as Product Owner and/or Business Analyst
• ▹Familiarity with data warehouse integrations
• ▹Experience working in cross-functional, agile teams
• ▹Knowledge of German is a plus, but not mandatory

Soft skills

What we offer

• ▹The opportunity to build a new BI engineering team from the ground up
• ▹A technically challenging environment with modern data and cloud technologies
• ▹High impact on business-critical billing and reporting processes
• ▹Collaboration with diverse stakeholders across analytics and platform teams
• ▹An English-speaking work environment

About the company

Ranked 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, with more than 5300 employees and hundreds of large customers in Germany and other European countries. DT-ITS received HIPA's Best in Educational Cooperation award in 2019 and was recognized as the Most Ethical Multinational Company the same year. The company continuously develops its four sites in Budapest, Debrecen, Pécs and Szeged.