Senior AI Engineer (f/m/x)

We are looking for an experienced AI/ML Engineer to join a long-term project for a global leader in the banking sector. As part of an international team, you will develop innovative AI and Machine Learning solutions transforming the Credit & Lending area for corporate and institutional clients worldwide.

You will work in a stable, fast-paced environment that values collaboration, innovation, and continuous learning. You will cooperate closely with business stakeholders and engineers across global locations to deliver impactful, production-grade solutions. The role requires occasional visits to the client’s office in Kraków, approximately 4 times per month.

Your tasks

• Write and maintain exemplary, high-quality, testable, and reusable code.
• Lead the design of scalable, robust AI/ML solutions aligned with the platform’s vision.
• Own engineering execution for significant parts of AI flagship projects, from technical design through production deployment.
• Co-author and champion coding standards and AI best practices that ensure fairness, transparency, and accountability across models.
• Co-drive technical strategy by evaluating and prototyping technologies such as advanced RAG techniques, LLM optimization, and agentic architectures.
• Collaborate with stakeholders across AI Programmes, translating business requirements into technical solutions and communicating complex ideas to diverse audiences.
• Develop and implement sophisticated Retrieval-Augmented Generation (RAG) and vector-database solutions to unlock insights from complex financial data.

Requirements

• Minimum 5 years of experience in software or ML engineering.
• Deep expertise in Python and its ML/AI ecosystem.
• Familiarity with relational databases, vector databases, KV stores (Redis), and Pub/Sub.
• Strong command of microservices architecture, observability, API design, and concurrency models.
• Expert understanding of LLM architectures and extensive experience fine-tuning models on domain-specific data.
• Hands-on mastery of RAG, advanced prompt engineering, and agentic architecture design.
• In-depth knowledge of machine learning, deep learning, and NLP.
• Proficiency with Azure or GCP, containers, Kubernetes, and CI/CD tools such as Jenkins, Azure DevOps, or GCP Cloud Build.
• Practical experience in TDD and BDD.
• Exceptional English presentation and communication skills.
• Residence in Poland.

Nice-to-have requirements

• Leadership or architectural experience.
• Familiarity with Java for occasional middleware and integration tasks.

What we offer

• Private healthcare, benefits cafeteria platform, car discounts, and additional benefits.
• Class A office facilities or remote work.
• Projects for prestigious brands worldwide.
• Support for personal passions and voluntary initiatives.
• Growth opportunities through meetups, webinars, a training platform, and a technology blog.
• Collaborative work atmosphere.