Senior Microsoft BI Engineer

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.

Purpose

The Senior Microsoft BI Software Engineer / Consultant is a key member of the Common Data Intelligence (CDI) Hub, responsible for the end-to-end development, delivery, and operation of enterprise Data Warehouse and Business Intelligence solutions. The role combines deep hands-on development with solution ownership, technical leadership, and mentoring, ensuring BI solutions are scalable, secure, reliable, and aligned with business needs.

Team / Project Description

The Common Data Intelligence (CDI) Hub is an enterprise analytics organization responsible for building and operating standardized Data Warehouse and BI solutions across multiple business domains. The team works in an agile, collaborative environment, delivering high-quality analytics products used by international stakeholders.

WHAT WILL YOU DO?

• Design, develop, and maintain enterprise Data Warehouse and BI solutions from concept through production and support.
• Take end-to-end ownership of BI solutions, leading implementation, deployment, and continuous improvement.
• Develop advanced SQL solutions on Microsoft SQL Server, including performance-optimized queries and data models.
• Translate business requirements into scalable, maintainable, and secure BI architectures.
• Implement and continuously enhance security, access control, and data protection concepts within BI solutions.
• Drive solution optimization initiatives, improving performance, reliability, and maintainability.
• Supervise acceptance testing and ensure high-quality delivery standards are met.
• Oversee end-user support and operational stability, ensuring reliable production systems.
• Act as a senior technical leader within the CDI Hub, providing guidance, mentoring, and knowledge sharing for junior developers.
• Collaborate closely with other engineers, analysts, and stakeholders to solve complex data challenges.
• Work in an agile development environment, actively managing backlog, tasks, and delivery using Jira.
• Contribute to continuous improvement of development standards, best practices, and ways of working.
• Support solution design and architectural discussions as a senior BI expert.

YOU WILL SUCCEED IF YOU:

• have a degree in Computer Science, Information Technology, Engineering, or a comparable field
• have strong senior-level experience in Microsoft BI development – Expert
• have advanced experience across Data Warehouse, Reporting, and Dashboarding solutions
• have deep hands-on expertise in Microsoft SQL Server (MSSQL) and advanced SQL development – Expert
• have strong knowledge of performance-aware query design and dimensional data modeling
• have experience taking end-to-end ownership of BI solutions from development through production and support
• have experience implementing and enhancing security and access concepts within BI environments
• have proven ability to drive solution improvements, optimizations, and technical quality
• have experience supervising acceptance testing and ensuring delivery readiness
• have experience supporting operational stability and end-user support for production BI systems
• act as a senior contributor within a BI development team, providing technical leadership and mentoring
• enjoy knowledge sharing and collaborative problem solving in cross-functional teams
• have strong experience working in agile development environments
• have daily hands-on experience using Jira for backlog, task, and delivery management
• have a solution-oriented mindset with strong analytical thinking and structured working style
• have the ability to translate complex business requirements into scalable BI solutions
• communicate confidently with both technical and non-technical stakeholders
• are comfortable working in large, international data & analytics environments

POSSIBLE SPECIALIZATION

• Experience with Microsoft Power BI for enterprise reporting and visualization
• Exposure to SaaS-based BI platforms or cloud-native analytics solutions
• Experience acting as a solution designer or technical lead
• Knowledge of enterprise security, identity, and access concepts in BI systems
• Familiarity with CI/CD concepts in BI or data platform environments

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 3100€ /brutto.

Additional information

* Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.