Join Kyivstar as a Data Scientist (Middle/Senior, Generative AI)
Are you passionate about pushing the boundaries of AI and working on cutting-edge projects that make a real impact? Kyivstar, the leading telecom operator in Ukraine, is looking for a talented Data Scientist to join our team and drive innovation in Generative AI.
About the Project:
As part of its AI transformation strategy, Kyivstar is investing in the integration of Generative AI into day-to-day processes and product development. One of the key directions of this strategy is building AI assistants and services powered by Big Data, Cloud, and AI technologies. You will play a crucial role in designing and implementing AI-driven solutions using advanced tools like Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) architectures.
Your Responsibilities:
- Build document parsing and data collection pipelines;
- Build data structures for AI assistants;
- Develop AI assistants;
- Fine-tune LLMs;
- Prepare development and deploy documentation for DevOps team;
- Plan project, explain approaches and discuss results / business impacts with customers.

Necessary skills:
- 4+ year experience with Python (statistical, data mining, ML, DL, NLP packages);
- Strong Python skills with experience in writing scalable software modules;
- Fundamental knowledge of ML/DL theoretical concepts;
- Good knowledge of SQL and experience working with Relational Databases;
- Experience in NLP techniques, vector storages and semantic search;
- Hands-on experience with Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) architectures and Al-driven content generation (LangChain preferred);
- Experience in parsing and extracting data from unstructured documents (PDF, etc.);
- Good understanding of RESTful APls and web-development basic skills;
- · Proficiency in Git and Docker.

Would be a plus:
- Experience with speech-to-text, text-to-speech;
- Experience with DL models fine-tuning;
- Experience with Data Science within Telecom;
- Experience with PySpark;
- Experience with Azure/AWS.

Why Kyivstar?
- Work with vast datasets at one of the largest telecom operators in Ukraine;
- Gain hands-on experience with the latest Cloud technologies and tools;
- Engage in diverse tasks and projects that challenge and grow your expertise;
- Be part of a talented, collaborative, and innovative team of data scientists;
- Flexibility in tools and approaches, allowing you to explore and innovate.

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