T-Mobile
Senior Data Engineer (m/f/d) (GCP preferred / Azure / AWS)
Skills
5 days ago
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Important information
Location:
Košice, Czechia
Work mode:
Onsite
Published on:
16 October 2026
What they need
Job ID: 744000129941629
Senior Data Engineer (m/f/d) (GCP preferred / Azure / AWS)
Košice
Professional
Regular
Deutsche Telekom IT and Telecommunications Slovakia
Your Task
We are hiring to our team a Senior Data Engineer who will develop, construct, test, and maintain data architectures, including databases and large‑scale processing systems, ensuring that these architectures fully support the requirements of the business. In this role, the Senior Data Engineer plays a collaborative part, working closely with the business's Data and Analytics teams, gathering technical requirements and contributing to exceptional data governance across the organization.
Responsibilities
- Analyses complex data elements and systems, data flow, dependencies, and relationships in order to contribute to conceptual physical and logical data models
- Designs, builds, implementation and maintain the database structures to support business needs including integration of vendor database solutions into data environment
- Contributes to the development of the capacity planning function to properly identify needed hardware, software, database configuration / architecture to support application / business needs
- Manages the life cycle of multiple database tools by enabling smooth upgrades and/or installation and support of new capabilities
- Data munging, manipulation, cleansing and blending from multiple data sources and exposure to various data types and storage paradigms including data mining
- Works with data to solve business problems and build and maintain the infrastructure to answer questions with data
- Develops and manages scalable data processing platforms used for exploratory data analysis and real-time analytics
- Oversees activities of the junior data engineers, ensuring proper execution of their duties and alignment with business vision and objectives
Your Profile
We are seeking a Senior Data Engineer with extensive experience in data architecture, cloud solutions, big data technologies, and strong analytical capabilities. The ideal candidate will have a Master's degree in Information Technologies, expert-level knowledge of cloud platforms and big data tools, and advanced skills in data processing, analytics, and programming.
Must Have Skills
- Master's degree in Information Technologies
- 5 years of experience with ICT Analysis, Architecture & Design
- Expert-level experience with Cloud solutions, preferably GCP (or Azure, or AWS) in the range of data processing
- Advanced knowledge of Machine Learning
- Expert-level experience with Data Analytics and visualization
- Expert-level experience with Big Data technologies (e.g. MapReduce, Hive, HDFS, YARN, HBase, Oozie)
- Advanced experience with Data processing methods (Kafka, Spark)
- Expert-level experience with Data streaming
- Expert-level experience with Data warehousing
- Advanced experience with SQL and NoSQL Databases
- Advanced experience with programming and scripting
- Advanced knowledge of Data mining techniques
- Analytical thinking skills
- Team management skills
- Cross-functional collaboration skills
- Strategic thinking abilities
- Ability to innovate
- Effective communication skills
- Stress tolerance
- Advanced English proficiency (C1 level)
Nice to Have Skills
- Intermediate German language skills (B1 level)
- Experience with usage of ML tools (e.g. Tensorflow, Pytorch)
- Knowledge of programming languages used in the field of ML (e.g. Python, R)
- Knowledge of distributed filesystems
About Us
Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services.
Benefits
We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment.
We offer over 25 different benefits to improve personal and professional life in these areas:
- Financial benefits
- Benefits with focus on learning and development
- Benefits with focus on health and sport
- Benefits with focus on family and work-life balance
- Other benefits
For more information about our benefits: Benefits
Salary: Final salary is negotiable.
We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than €3,100 gross.
Company Policies
- Remote working possibility is only available within Slovakia due to European taxation regulation
Job Benefits
Financial
- Base salary will not be lower than 3100€ /brutto
- Variable part in addition to base salary
- Other financial benefits
Work-Life Balance
- Attractive and extensive work-life balance portfolio
- Over 25 different benefits to improve personal and professional life
- Benefits with focus on family and work-life balance
Professional Development
Benefits with focus on learning and development
Lifestyle & Wellness
Benefits with focus on health and sport
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