Job Description

We’re looking for motivated ML and AI Engineer interns, located in Sofia!

Who is this for?

This internship is designed for currently enrolled undergraduates in their second, third, or fourth year of degree-level education, ideally with an interest in Information Systems, AI Technologies, Data Science, Machine Learnings, or related fields.

1/ ML Engineer Intern

What you will do

• Support the development and evaluation of Machine Learning models using Python and frameworks such as PyTorch, TensorFlow and scikit-learn.
• Work with structured and unstructured data in Databricks and enterprise data platforms, helping prepare datasets and engineer features for ML solutions.
• Assist in building and maintaining reusable ML pipelines for model training, testing and deployment.
• Contribute to model experimentation, performance analysis and continuous improvement activities.
• Learn and apply MLOps practices, including version control, testing, CI/CD and model lifecycle management.
• Collaborate with Data Scientists and ML Engineers to help transition analytical models into scalable production solutions.
• Explore machine learning techniques such as forecasting, classification and predictive analytics to address real business challenges.
• Partner with colleagues across Data & Analytics and business teams to understand business needs and support data-driven decision making.

What you will learn:

• End-to-end Machine Learning lifecycle and MLOps practices.
• Enterprise-scale AI and analytics platforms, including Databricks.
• Modern software engineering practices used for ML solution development.
• How Machine Learning creates value across commercial, supply chain and operational functions.

2/ AI Engineer Intern

What you will do

• Support the development of Generative AI applications and AI-powered solutions using Large Language Models (LLMs).
• Assist in building Retrieval-Augmented Generation (RAG) solutions that connect AI models with enterprise knowledge, documents and data sources.
• Contribute to the development and testing of AI agents and intelligent workflows that automate tasks and improve business processes.
• Gain hands-on experience with Azure AI Foundry, Databricks and Microsoft AI technologies while working on real business use cases.
• Help integrate AI capabilities into applications and platforms through APIs and enterprise services.
• Participate in evaluating AI solutions for quality, performance, cost efficiency and Responsible AI compliance.
• Support experimentation with emerging AI technologies and the rapid development of proofs of concept (PoCs).
• Collaborate with AI Engineers, Data Scientists and business stakeholders to identify opportunities where AI can create measurable business value.

What you will learn:

• Generative AI, LLMs, RAG architectures and AI agent development.
• Enterprise AI engineering practices and modern AI platforms.
• Responsible AI principles, security and governance requirements.
• How AI solutions are designed, built and deployed in a large global organization.

What You’ll Bring:

• Fluency in English. Knowledge of one of the following languages is also an advantage: French, Dutch, German, or Spanish.
• A proactive attitude and strong communication skills.
• Attention to detail and a passion for delivering high-quality service.
• Interest in AI or/and Machine Learning.
• Ability to work in a fast-paced, collaborative environment.

Why Join Us?

This is a 9-month program, designated to take place during 2027 (expected between Feb–Nov) and will adapt to the company’s ways of working at that point in time.

The program allows flexibility for interns to choose between full-time and part-time schemes.

You’ll receive personal mentoring and support, as well as access to multiple networking opportunities.

What Happens Next?

Due to the high volume of applications, the selection process may take longer than usual. Candidates who meet the requirements will be invited for Excel test and interview with members of our team.