Senior Data Scientist for Time Series Forecasting

We are a small team in a big company, mainly 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, and 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.


What will be your key responsibilities:

  • You will be applying machine learning approaches like analyzing and visualizing data in Python to provide business insights for internal customers of the Deutsche Telekom group
  • 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
  • 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 projects designing & implementing prototypes of innovative applications in Python – our usual projects are in the areas of Time Series, NLP, Classification, Visualization
  • You will cooperate with the business side including your active contribution to 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 like SAP, Scikit-learn, Keras, Spacy, Docker, Kubernetes, Flask or Tesseract, and BI dashboarding tools like MicroStrategy, Qlik, Tableau, … knowledge of these is helpful
  • You will have the chance to identify possible use cases for automation and data science, innovative ideas are welcome


What experience should you have:

  • Fluency in written and spoken English, and German would be an advantage.
  • Education in the IT field would be beneficial, but it is not needed.
  • At least 3 years of working experience with Data Science projects, preferably with Time Series forecasting
  • Good coding and model development in Python
  • Experience with Jupiter Notebook, SAP, and SAP HANA studio is more than welcome but not necessary
  • Awareness of and willingness to apply Agile methodology (Scrum, XP, Kanban, etc.)
  • Interest in IT and business process management (Financial Controlling, Procurement, Human Resources).
  • Courage to ask questions when something is not clear or point out when something seems inefficient to you.
  • Analytical thinking, an affinity for structure, grasping things fast, and working systematically.
  • Ability to develop working solutions quickly and you get things done

What do you get in return:

We want you to know that we value our employees and want to provide you with more than just a job. As a valued member of our team, you will receive a range of benefits that include:


  • An annual financial bonus
  • An extra week of holiday (25 days/year), Up to 5 My days, and 1 day off for volunteering
  • Additional paid time offs for married couples/registered partnerships, parents on the first day of school, extended paternity leave, and time-offs for foreigners dealing with state office matters
  • Flexible working hours and the possibility to work remotely
  • Pension plan contribution
  • Free refreshments (water, coffee, tea, milk, and fruits available in the office)
  • Company Shares
  • Alza Discounts
  • Company mobile phone and laptop
  • Meal vouchers in the amount of 160 CZK per working day
  • A variety of Benefits (Cafeteria Plan, Multisport Card, Makro Card)
  • A family program with T-Mobile (discounts for employee’s family members and friends)
  • Training and qualification opportunities (access to the internal learning HUB)
  • Personal development opportunities (career path, job rotation, Bring your own Project)
  • Involvement in various activities supporting charity organizations (Flea markets, volunteering days, food collections)
  • A relocation package for candidates coming from abroad
  • Opportunities for relaxation and wellness activities (massage chair, PlayStation 5, etc.)
  • Fun team events such as brunches, Health Day, and summer and holiday parties!
  • At our company, we believe in creating a positive work environment that values our employees' well-being and development. If you are excited about this opportunity and want to be part of a dynamic team that cares about its employees, send us your CV in English and join us today!
  • As a part of Deutsche Telekom Group, we ensure not only work-life balance and international career opportunities but also personal development opportunities. We support all individuals in their performance, development, and growth. We offer a variety of trainings, qualifications, and e-learning activities to actively support the rising of common expertise.
  • At Deutsche Telekom Services Europe Czech Republic, we are proud to be an equal opportunity workplace and employer. We review applications for employment without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, ancestry, citizenship, age, uniformed services, genetic information, physical or mental disability, medical condition, marital status, or any other basis prohibited by law. We welcome applicants from all backgrounds and strive to create a workplace that is supportive, empowering, and inclusive.

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