Build the Future of AI as a Senior Python Developer (LLM & NLP Focus)

Deutsche Telekom Services Europe is an internal services provider of Deutsche Telekom, one of the world's leading integrated telecommunications companies. Our shared mission is to put priority on customer satisfaction, quality and innovations in areas of finance and procurement services. We are on our way to become industry's top service company and we want you to be a part of the success story! 

Apply now and design with us the world of tomorrow.


What will be your key responsibilities:

Which challenges are expecting you:

  • Enhance and maintain Python backends for LLM-powered agent applications (e.g. chatbots)
  • Improve customer experience by stabilizing and optimizing existing solutions (visualization, automated validation, function calling, agent actions)
  • Identify and implement new business requirements
  • Collaborate closely with business teams – explain technical concepts clearly and contribute to customer workshops and meetings
  • Take part in brainstorming, code reviews, and pair programming
  • Proactively suggest automation or data science use cases – your innovative ideas are always welcome!

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 experience should you have:

Your skills:

  • Strong experience in Python development (ideally with FastAPI, Celery, and data science tools)
  • Hands-on with LLM frameworks like LangChain, LlamaIndex, and OpenAI/Azure APIs
  • Solid understanding of databases (PostgreSQL, MySQL, MongoDB, Elasticsearch)
  • Experience building RESTful APIs
  • Agile mindset, flexibility, and teamwork
  • Passion for sharing knowledge and continuous learning
  • Fluent English

Nice to have:

  • German language skills
  • Prompt engineering experience
  • Cloud & DevOps familiarity (Docker, CI/CD, Azure/AWS/GCP)
  • Experience with MLOps/AI orchestration tools (MLflow, Dagster)
  • Background in Telco or Finance sectors

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.


What do you get in return:

  • Annual bonus
  • Fully paid meal vouchers
  • Mobile phone also for private use
  • Discounts for selected Telekom products
  • Supplementary pension saving contribution
  • Cafeteria system of benefits/Multisport card
  • Sick days
  • Sports club & Health days
  • Teambuildings, summer & Christmas party
  • Opportunities for career growth
  • Referral program
  • Flexible working time
Mám zájem o tuto pozici

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