Data Scientist Expert

We are looking for you if you want to work at one of Hungary's leading telecommunications companies to help our clients navigate the digital world. Take the first step, bring your inspiring ideas and join our supportive and creative Data Scientist team.

Be curious and responsible, work passionately and be open to development. Let’s reach our goals together, because at Yettel you can inspire true change while being yourself. Who are we? More than 1,800 colleagues working at nearly 130 locations across the country forming one big team and enjoying an unlimited experience. We have a lime heart and Yettel enables us to make our dreams come true.

Join Yettel Hungary as

Data Scientist Expert,

be yourself and make a difference in the world.

You will have the following responsibilities:

• Supporting business and marketing decisions with data-driven solutions, such as developing predictive models, analytical insights, and generative AI tools, so the company can respond more effectively to market challenges.
• Participating in generative AI projects, including working with Large Language Models (LLMs) and GenAI, to deliver innovative solutions.
• Gathering requirements and creating specifications to ensure every project is precisely aligned with business goals, making our work more impactful.
• Applying data science techniques in areas like marketing, product development, customer behavior, and business processes, helping the team make the best decisions.
• Summarizing and presenting analytical results in various formats, making findings clear and useful for everyone.
• Managing code, documentation, and data assets according to agreed standards, ensuring transparency and traceability in all processes.
• Coordinating projects and objectives, tracking progress, managing deadlines, and ensuring high-quality models, so our solutions are reliable and scalable.

You are the ideal candidate for our team if you have / are:

• A BSc or MSc degree in IT, Economics, Technology, Natural or Social Sciences.
• 2-5 years of relevant professional experience, either in academia or industry.
• Intermediate knowledge of statistics, data mining, and data analysis, and the ability to deliver modeling projects independently or with supervision.
• Confident use of Python, scikit-learn, pandas, and NLP libraries (such as spaCy, Hugging Face Transformers), as well as SQL and handling structured/unstructured data.
• Familiarity with MLOps practices and tools (e.g., MLflow, Docker, CI/CD), and basic understanding of Git and version control.
• Strong analytical and strategic thinking, able to translate technical outcomes into business value and interpret model results in a business context.
• Excellent communication skills, able to present complex technical results clearly in both English and Hungarian, and actively participate in knowledge sharing and teamwork.

You’ll feel at home in the Yettel team if you enjoy working collaboratively, take ownership of your work, think in a data-driven way, have a proactive mindset, and treat everyone with respect. At Yettel, we are relentlessly working to reshape the telco industry, which is why it’s important to us that you use AI tools at least at a basic level and confidently integrate them into your day-to-day work to become even more effective.

Discover the opportunities offered by Yettel.

#FlexibleWorking: We work in the nature-friendly and innovative Yettel House, and during the summer, the Garden Office is also available to us. In addition, we offer the possibility of working from home, with the number of home office days varying by department; in this role it is 10 days per month.

#Health: We provide our colleagues with collective life and health insurance, paternity leave, and free advice in the areas of lifestyle, psychology, law and finance. Our office gym and saunas also await our employees.

#Technology: It is natural that you will receive a company smartphone with unlimited internet, and we even offer discounted rates for your family and friends.

#Learning: Trainings, courses and an online platform are also available so that you never stop developing! Our goal is to support you throughout your personal and professional career, while you are constantly learning new things!

#YettelHQ: Our headquarter at Törökbálint is one of the most unique office buildings in the country, with a panoramic terrace, an outdoor sports field and an alternative garden office.

#YettelBus: You can also get to Törökbálint with Yettel's buses, which are available to everyone. You don’t need to show any documents when boarding. These buses leave from several stations in the city: Népliget, Kelenföld, as well as Déli pályaudvar stations, and you can recognize them by the "Yettel bus - Yettel" sign on the front of the vehicles.

Are you interested?

Please submit your application and we’ll contact you soon. For more information about the application process please visit our career page. Until then, please follow us for the best Yettel moments on Instagram and LinkedIn.