Software Engineer Data (REF5581S)

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 (like POM, PIM, CDP, PCM)
• ▹Generate and deliver reports and datasets for multiple downstream consumers (e.g. ODE, Billing, Kibana)
• ▹Collaborate closely with stakeholders across analytics, billing, and platform teams
• ▹Contribute to the setup and shaping of 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
• ▹AWS (general knowledge), including AWS S3, AWS DataSync, AWS Athena Notebook, Amazon Aurora, Amazon ECS, Amazon 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

• ▹English-speaking work environment
• ▹Opportunity to build a new BI engineering team from the ground up
• ▹Technically challenging environment with modern data and cloud technologies

About the company

Deutsche Telekom IT Solutions is Hungary's most attractive employer in 2025 (according to Randstad's representative survey) and a subsidiary of the Deutsche Telekom Group, providing a wide portfolio of IT and telecommunications services with more than 5300 employees across Budapest, Debrecen, Pécs and Szeged.