AI Chatbot speeds up work with HR data at Slovak Telekom and T-Mobile CZ

Implementation of an AI chatbot for HR reporting in the Azure environment provides fast and secure access to data without the need to manually open reports or contact HR analysts. The project, carried out in collaboration with Aspecta, simplified the work of managers and HR departments and strengthened the culture of data-driven decision-making.

October 9, 2025 ┃ 5 min read

Challenge

The need for quick orientation in HR data without complex navigation through Power BI reports.
Barriers for non-technical users in accessing analytical information.
An increasing number of requests for HR analysts and reduced decision-making efficiency.
The need to maintain a high level of security and RLS permissions in the Azure environment.

Solution

Aspecta designed and implemented an AI chatbot built on the Microsoft Azure platform using the Azure OpenAI (GPT‑4 Turbo/4.5). The chatbot serves as a natural extended interface for HR reporting, allowing users to ask questions in natural language. Responses are generated based on SQL/DAX queries over the HR database, fully respecting RLS and Object Security policies.

Technologies used:

Frontend: MS Teams (native environment for ST/TMCZ)
Backend: Python, LangChain, CrewAI, Teams‑AI SDK
AI Model: Azure OpenAI (GPT‑4 Turbo/4.5)
Dáta: HR cube in the ST Azure Cloud tenant, accessed via a read-only schema
Hosting: Azure App Service (Docker image), Azure AI Foundry

The chatbot analyzes user queries, translates them into SQL statements, and uses an RAG approach to interpret responses in the context of HR metrics. Integration with MS Teams ensures simple and fast use for managers, HR business partners, and analysts.

Implementation

The project was carried out in two phases:

Feasibility Study (Q1/2024): Validation of AI capabilities, security verification, and RLS access testing.
Production pilot (Q2/2024): Deployment of the solution in the Azure environment, integration with MS Teams, and testing with selected HR teams.

The project was conducted in close cooperation with the IT security, HR, and BI teams, ensuring full compatibility with internal processes and compliance policies (GDPR, ISO 27001, SOC 2).

Results and benefits

- 70% of the time required to obtain HR information.
+85% user satisfaction, highest among HR business partners.
200% increase in HR data usage compared to the original BI solution.
Automation and intuitive querying reduced the number of requests to HR analysts by more than half.

“AI chatbot has enabled us to quickly respond to management requests and access relevant HR data directly in the environment where we already work every day. It’s a real step forward in how HR works with data.”

– HR Business Partner, Slovak Telekom

Conclusion

Aspecta has confirmed its strong position in AI solutions and Azure platform integration, enabling the delivery of modern, secure, and highly efficient tools for data management. By combining technical know-how with real business value for HR teams, Aspecta helps organizations simplify data handling, accelerate decision-making processes, and foster a data-driven culture.

With extensive enterprise experience and a strong focus on security standards, Aspecta provides solutions that combine innovation with reliability. The AI chatbot is an example of a technology that delivers immediate value to users while adhering to strict data protection requirements.

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