AI Engineer

AI Engineer

Bull is a story. One with a century of European innovation and a working environment where experts design powerful, sustainable, and sovereign digital solutions, enabling states and industries to retain full control over their data and their AI. Bull is also thousands of engineers, researchers and passionate tech people shaping the future of high‑performance computing, AI, and quantum technologies. Every day, our teams push the boundaries of what is technologically possible – from next‑generation HPC architectures to exascale supercomputers – supported by world‑class R&D, more than 1,600 patents, and unique end‑to‑end capabilities spanning hardware design, software engineering, data science and quantum research. We are a people‑centric, innovation‑driven company, where collaboration spans Europe, the Americas and India. We share a common vision of a responsible and sustainable innovation that delivers concrete impact for our customers.

About the role Are you experienced in building AI-powered solutions, especially with modern NLP architectures and retrieval-based systems? Do you have strong Python skills and enjoy working with open-source tools in a cloud-native environment? If you're collaborative, curious, and excited to work on impactful, production-ready AI systems, we'd love to meet you.

What You'll Do As an AI Engineer, you'll design and build intelligent applications using advanced machine learning and LLM-based architectures. You'll work closely with clients to understand their needs and deliver cutting-edge AI solutions leveraging technologies like RAG, vector databases, and semantic search. You'll collaborate with engineers, analysts, and project managers to:

• Define the problem: Understand the business goals and how AI can create real value.
• Design the solution: Build RAG pipelines, structure unstructured data, and fine-tune language models.
• Implement it: Work with vector stores, embedder models, and retrieval frameworks.
• Deploy it: Help bring your solutions into production using MLOps and LLMOps practices.

Why Join Us? At Bull, we're an experienced team of AI engineers, data scientists, and consultants building real-world applications with LLMs, embeddings, and retrieval technologies. We combine deep technical expertise with a practical, product-driven approach to AI.

Our Projects & Technology Stack: We work on next-generation AI solutions across industries like finance, healthcare, manufacturing, and e-commerce. Many of our current projects focus on:

• Document intelligence and search over unstructured corpora
• AI agents and chat interfaces powered by RAG
• Enterprise knowledge base integrations using vector DBs
• Cloud platforms: Azure, AWS, Google Cloud

How we work: Agile teams (2–5 people), close collaboration, continuous delivery Remote-first culture: Work where you're most productive. This role is remote within Slovakia. Flexible working: Full-time and part-time options available, with part-time roles starting from 24 hours per week.

What We're Looking For Strong Python programming skills and software engineering skills Experience with modern AI tools, RAG architectures, vector databases, and embedding models Familiarity with LLM frameworks and libraries (e.g., LangChain, LlamaIndex) Ability to design and deploy cloud-based AI systems Problem-solving mindset, a passion for learning, and a hands-on approach You must be legally authorized to travel and work across the EU as required for client engagement

What You'll Get The opportunity to work on cutting-edge AI systems with real-world impact A collaborative environment focused on innovation and technical excellence Flexibility, remote work options, and a supportive, curious team culture