AI SERVICES – PRINCIPAL DATA Scientist for Time Series Forecasting BA

We are a small team in a big company, adopting agile methodology. We provide Data Science solutions for internal customers inside Deutsche Telekom and our skills and solutions are continually in high demand. Therefore, we want to increase the size of our team with additional technical people that know how to process and analyze data so we can serve and satisfy the needs of even more customers.

We are looking for somebody who can work independently, create working solutions quickly, creatively come up with new ideas, but also knows how to use and where to look for existing solutions. Our project members are also situated in Germany, Slovakia or Romania so video conferencing is the daily standard. 

Apply now and design with us the world of tomorrow.


AI SERVICES – PRINCIPAL DATA Scientist for Time Series Forecasting BA

English (C1)
Technical
Bratislava
full-time
3 500 EUR/m

Your responsibilities will include:

  • You take the end-to-end responsibility for strategically aligned data science projects, from taking stock of requirements and advising through to putting the solution into production
  • You will be applying machine learning approaches to provide business insights for internal customers of the Deutsche Telekom group
  • You will be responsible for selecting the right modelling approaches and advising the Data Scientist teams on the methodologies to apply
  • You will prepare training & evaluation pipelines and apply state of the art Machine Learning approaches to improve processes in Finance (Controlling, Treasury, Accounting), Procurement, HR, and others
  • You are responsible for upskilling Data Scientist teams and preparing adequate training materials
  • You will be driving innovation by staying up to date with the latest advancements in time series research (e.g., forecasting, clustering, anomaly detection) and identifying their potential applications within our products and projects
  • We create data-driven business solutions for our customers. You will be the one creating them and possibly deploying them to production, teaching your customers how to use them, and providing support/maintenance
  • You will be responsible for the technical part in your time series projects designing & implementing prototypes of innovative applications in Python
  • You will cooperate with the business side including your active contribution in customer workshops, meetings, and calls so the ability to explain technical points to business colleagues is a crucial part of this job, as is a consultant’s mindset
  • You will participate in team brainstorming sessions, code reviews, and pair programming sessions
  • Depending on the use case, you will have the opportunity to work with a variety of tools and technologies such as Docker, Kubernetes, FastAPI, Redis, Celery and ML frameworks like SKTime, Scikit-learn, Nixtla, Tensorflow or other relevant libraries.
  • You will have the chance to identify use cases for automation and application of data science

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.

The published salary is the minimum possible offer.
The starting salary may be higher depending on the extent of fulfillment of the employee’s requirements (education, language skills, required practice, personality assumptions and skills).

What we expect from you:

Your skills:

• More than 5 years of working experience with Data Science projects, preferably with Time Series forecasting
• Additionally, you have been leading and advising Data Science teams
• Proven track record of teaching Data Science skills in organizations or academia
• Profound expertise in time series modeling, capable of instructing and mentoring fellow data scientists
• You are able to write clean, comprehensive, and efficient Python code and are an expert in developing machine learning solutions in Python. Additionally, you are familiar with OOP principles, PEP8 guidelines, testing methodologies and API integrations. You are aware of and willing to apply Agile methodology (Scrum, Kanban, etc.)
• IT area sounds good to you, but business process management is something that is interesting to you, too (Financial Controlling, Procurement, Human Resources)
• You are not afraid to ask questions when something is not clear or point out when something seems inefficient to you
• You are an analytical thinker, have an affinity for structure, grasp things fast and work systematically
• You can develop working solutions quickly and you get things done
• Language: Fluent written and spoken English, German skills would be an advantage
• Education in the IT field would be beneficial


Interpersonal Skills
• Proactivity towards customer service is essential.
• Flexible and responsive to changing work patterns and demands
• A thorough and methodical approach to work
• Highly developed skills in interpersonal communication
• Knowledge sharing – active contributor.


At our company, we believe in creating a positive work environment where employee wellbeing and growth truly matter. If this opportunity excites you and you’d like to join a dynamic team that genuinely cares about its people, send us your CV in English and become part of our journey!

As part of Deutsche Telekom Group, we offer not only a healthy work-life balance and international career opportunities, but also strong support for personal and professional development. We encourage performance, ambition, and growth, and provide a wide range of trainings, certifications, and e-learning programs to help you continuously develop your skills. At Deutsche Telekom Services Europe Slovakia, we are proud to be an equal opportunity employer.

We review all applications fairly, without discrimination based on race, color, religion, gender, sexual orientation, gender identity, nationality, citizenship, age, disability, health condition, marital status, or any other characteristic protected by law. We welcome candidates from all backgrounds and strive to create an inclusive, supportive, and empowering workplace where everyone can thrive.

AI SERVICES – PRINCIPAL DATA Scientist for Time Series Forecasting BA

English (C1)
Technical
Bratislava
full-time
3 500 EUR/m

Benefits

Rewards & Security

Rewards & Security

Annual financial bonus, company shares, and Pension Contribution / third pillar of the pension system.

Flexibility

Flexibility

Hybrid working model (2 days in the office) and flexible working hours.

Extra day OFF

Extra day OFF

Up to 5 “My Days”, plus special paid leaves (marriage/partnership, first school day, extended paternity leave, official matters for foreigners).

Technology & Discounts

Technology & Discounts

Company mobile phone and laptop, 50% discount at Slovak Telekom.

Cafeteria, Meals & Wellbeing

Cafeteria, Meals & Wellbeing

Meal vouchers (6,50€/day), Cafeteria Plan, Multisport Card, Online consultations via mojra.sk. , Alza, Metro and other discounts.

Learning & Growth

Learning & Growth

Language courses, Training and qualifications via our platforms, Career Development Paths.

Community & Team Spirit

Community & Team Spirit

Involvement in charity initiatives (flea markets, volunteering, food collections). Brunches, Health Day, summer celebrations, and holiday parties. Relocation package for international hires.

Are you interested in this position?

Fill out the form and join our team.