Senior AI Engineer (f/m/x)

We are looking for an experienced AI/ML Engineer to join a long-term project delivered for a global leader in the banking sector. As part of a highly skilled international team, you will contribute to the development of innovative AI and Machine Learning solutions, transforming the Credit & Lending area for corporate and institutional clients worldwide. This role offers the opportunity to work in a stable yet fast-paced environment, where collaboration, innovation, and continuous learning are strongly valued. You will cooperate closely with business stakeholders and engineers across multiple global locations to deliver impactful, production-grade solutions. If you are passionate about applying modern AI technologies to solve complex real-world challenges, this opportunity may be the right fit for you. 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 AI/ML solutions, ensuring they are scalable, robust, and aligned with the platform's vision • Own the engineering execution for significant parts of our AI flagship projects, from technical design through to production deployment • Co-author and champion coding standards and AI best practices to ensure fairness, transparency, and accountability across our models • Co-drive technical strategy by evaluating and prototyping new technologies, such as advanced RAG techniques, LLM optimization, and agentic architectures • Collaborate extensively with stakeholders across the AI Programmes, translating business requirements into technical solutions and communicating complex ideas to diverse audiences • Develop and implement sophisticated solutions using Retrieval-Augmented Generation (RAG) and vector databases 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), Pub/Sub • Strong command of microservices architecture, observability, API design, and concurrency models • Expert-level understanding of LLM architectures and extensive experience fine-tuning models on domain-specific data • Hands-on mastery of Retrieval-Augmented Generation (RAG), advanced prompt engineering, and designing agentic architectures • In-depth knowledge of machine learning, deep learning, and NLP • Proficiency with Azure or GCP, containers, Kubernetes, and CI/CD tools, e.g., Jenkins, Azure DevOps, GCP Cloud Build • Practical experience in TDD and BDD • Exceptional presentation and communication skills in English • Residing in Poland required Nice-to-have requirements • Leadership or architectural experience • Familiarity with Java for occasional middleware and integration tasks