Trainee for Reporting team

Join our Corporate Reporting Services team and support internal reporting for Deutsche Telekom Group. You’ll work with tools like Power BI, Celonis, Power Query, and Excel to help prepare datasets, build dashboards, and automate reporting processes.
Be part of a team that transforms data into insights. We offer a supportive space to grow your skills and make an impact.

Contract type

internship, work experience

Place of work

Košice, Slovakia (Job with occasional home office)

Start date

ASAP

Wage (gross)

From 6 EUR/hour

About the position

What You’ll Do:

Assist with data uploads, adjustments, and validation from source systems
Maintain and adjust data models and ETL processes
Build and enhance dashboards using BI tools
Support backend/frontend tasks for report updates
Automate reporting workflows and support developers
Handle ad hoc and scheduled data queries
Identify and document process improvements
Collaborate closely with technical and business teams

We work in a HYBRID STYLE of working with the possibility of working from home , but twice a week we meet in the office in Košice or Bratislava for meetings.

What we expect

Candidates with education suit the position

Secondary with school-leaving examination

Language skills

English - Intermediate (B1)

Personality requirements and skills

University student in Economics or IT (part-time welcome)
Familiarity with BI tools (Power BI, Celonis), SQL, scripting, or automation is a plus
Strong Excel skills; experience with macros or Visual Basic is an advantage
Proactive, structured, and detail-oriented mindset
Good communication and documentation skills
English language, German language is a plus
Eagerness to work in an international environment

Benefits that make you happy

Fully paid meal vouchers
Notebook
Sports club & Health days
Teambuildings, summer & Christmas party
Opportunities for career growth
Flexible working time

About the selection process

We are dedicated to constantly promoting equal employment opportunities and are ready to make reasonable adjustments for applicants with disabilities. If you are interested in our job opportunity and meet our job requirements for this position, we encourage you to confidentially notify us if you need specific accommodations to ensure your full participation in our recruitment process at recruitment@telekom.com.

Snažíme sa neustále podporovať rovnaké príležitosti v zamestnaní a sme pripravení urobiť primerané úpravy pre uchádzačov so zdravotným postihnutím. Ak máte záujem o túto pracovnú príležitosť a spĺňate požiadavky inzerovaného pracovného miesta, odporúčame vám, aby ste nám dôverne oznámili, ak potrebujete osobitné úpravy, ktoré vám zabezpečia plnohodnotnú účasť na našom náborovom procese na recruitment@telekom.com.

Send CV

ID: 5243395 Dátum zverejnenia: 2.3.2026 lokalita: Košice Pozícia: Administrative Worker, Official, Reporting Specialist Spoločnosť: Deutsche Telekom Services Europe Slovakia s.r.o. Pracovná ponuka je prevzatá z inej stránky alebo zdroja. Základná zložka mzdy (brutto): 6 EUR/hour