Data Scientist Ref #: HQ1602

In our team, we believe that success starts with people – that’s why we create an environment of trust, support and open communication, where everyone matters.

As part of Team Blue you will have the opportunity to grow your potential, because we believe you CAN. Join us and let’s be First together!

Your role will be:

• Design, develop and maintain advanced Machine Learning, Generative AI, NLP and Large Language Model (LLM) solutions to address complex business challenges.
• Build end-to-end AI/ML pipelines, including data ingestion, preprocessing, retrieval, Retrieval-Augmented Generation (RAG), model development, fine-tuning and prompt engineering.
• Collaborate closely with business stakeholders, product teams, MLOps specialists, Machine Learning Engineers and Software Engineers to ensure successful deployment of data-driven solutions.
• Monitor, evaluate and continuously improve the performance and effectiveness of existing analytical and predictive models.
• Prepare and maintain comprehensive technical documentation of data science processes, methodologies and best practices.
• Contribute to innovative data science initiatives and collaborate with international teams across the KBC Group to deliver impactful AI solutions.

The role is part of a country-level function that provides services across multiple legal entities within the KBC Bulgaria Group.

You are the right candidate if:

• You hold a Bachelor’s or Master’s degree in Computer Science, Mathematics, Statistics, Computational Linguistics, Engineering or a related field.
• You have at least 2 years of hands-on experience developing data-driven solutions using Machine Learning, NLP and advanced analytics techniques.
• You have practical experience with Python and modern AI/ML frameworks such as Hugging Face, TensorFlow, Keras, PyTorch or similar technologies.
• You possess strong knowledge of Generative AI, Transformer architectures, Large Language Models (GPT, Claude, Gemini, LLaMA or similar) and model fine-tuning techniques.
• You have experience with AI/ML solution design and cloud technologies such as AWS or Azure.
• Experience contributing to open-source projects, research initiatives or Kaggle competitions will be considered an advantage.
• Previous experience in banking, financial services or insurance will be considered an advantage.
• You are fluent in English and have strong analytical, communication and problem-solving skills.

It is worth working with us because:

• Excellent opportunities for professional and career development in the leading financial group in Bulgaria
• Competitive remuneration
• Additional payment at the end of the year
• Annual bonus based on individual performance
• Various opportunities for learning and development
• Preferences for products and services in KBC Group Bulgaria
• Additional health insurance
• Life/Accident Insurance
• Food vouchers – 55 EURO
• Referral program
• Financial support for important life events
• Hybrid working model and flexible working hours
• 25 days annual paid leave + 1 day for birthday
• Opportunity for additional Voluntary Pension Insurance
• Sport card at a preferential price – Multisport/Coolfit
• Solidarity employee’s fund
• Opportunity to collaborate with one of the largest Data Science communities within the KBC Group
• International exposure through cooperation with Data Science teams across multiple European countries. Participation in innovative AI, ML and Generative AI projects with real business impact

Share your future with us!

Should you wish to become part of our team, please send us your CV.
Only short-listed candidates will be invited for an interview.
Confidentiality is guaranteed and the provided data is under special protection within the meaning GDPR and of the Personal Data Protection Act.

Our people are our brand! Join us!