Job description
Company Description
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.
Job Description
Purpose
We are looking for a Senior Database Engineer who will serve as a technical expert for building, monitoring, optimizing, and maintaining MS SQL Server database environments.
The role also includes analyzing datasets, identifying opportunities for optimization, improving performance, and validating technical approaches using data-driven methods.
Team description
Join the team at operational services GmbH within Deutsche Telekom IT Solutions Slovakia, offering opportunities for German- and English-speaking talents. OS is one of the leading ICT service providers in the German market, delivering modern and secure IT solutions, long-term operational support, and ensuring availability of critical business processes for medium-sized and enterprise customers.
WHAT WILL YOU DO?
Administration, operation, and maintenance of Microsoft SQL Server environments
Design, implementation, and optimization of database architectures and data pipelines
Planning and executing installations, upgrades, migrations, and patching of SQL Server
Monitoring performance and tuning SQL Server databases, indexes, and queries
Implementing backup & recovery strategies (Full, Differential, Transactional Log backups)
Troubleshooting database issues, identifying root causes, and implementing corrective actions
Ensuring availability, reliability, and high performance of SQL database systems
Supporting high availability and disaster recovery (HA/DR) configurations
Creating and maintaining system and process documentation
Collaboration with development, infrastructure, and operations teams
Ensuring adherence to security policies, compliance requirements, and audit standards
Contributing to automation initiatives and continuous service improvement
Qualifications
YOU WILL SUCCEED IF YOU:
Minimum 3 years of hands-on experience with MS SQL Server administration
Strong understanding of SQL Server architecture, components, and internal processes
Practical experience with:
Installation, configuration, maintenance
Performance tuning (indexes, execution plans, statistics)
Backup & recovery (native tools, PITR)
Monitoring and troubleshooting
Solid knowledge of T-SQL and ability to analyze and optimize complex queries
Experience with Windows Server environment (administration basics required)
Analytical, systematic, and structured working style
Strong teamwork, communication skills, and customer-oriented approach
Ability and willingness to perform on-call duties
Nice-to-Have Technical Knowledge
Oracle
PostgreSQL
MariaDB
High Availability solutions (AlwaysOn, Failover Clustering, Log Shipping, Mirroring)
Command-line / shell scripting
Experience with support tools (e.g., PuTTY, monitoring dashboards, automation tools)
Experience with cloud-based SQL solutions (Azure SQL, SQL Managed Instance – advantage)
Certifications (Preferred)
- Microsoft SQL Server Administrator certification (e.g., MCSA, MCSE or current equivalent)
Language Requirements
English: Upper Intermediate (B2)
German: Nice to Have
Additional Information
WHY SHOULD YOU CHOOSE US?
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. All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their 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 click to 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 1300€ /brutto.
Additional information
\* Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.
