Senior Data Engineer / Data Scientist (AI & LLM Solutions)

Senior Data Engineer / Data Scientist (AI & LLM Solutions) Date:  Mar 4, 2026 Location:  Kraków, PL, 30-302 Łódź, PL, 90-118 Warszawa, PL, 00-839 Poznań, WP, PL, 61-569 Working place:  Hybrid Type of contract: employment contract  Salary range: 15 800 – 24 300 PLN gross/m      What will you do?    We are looking for a hands-on Senior Data Engineer / Data Scientist with a strong Python background and proven experience in AI-driven solutions. This role combines data engineering expertise with analytical and modeling capabilities. You will be responsible for building scalable data pipelines and developing AI/ML and agent-based solutions leveraging LLM technologies. You will join the Transaction Monitoring area within the Anti-Financial Crime Division at one of our UK banking clients, contributing to advanced analytics and intelligent automation initiatives.   Your tasks    Design and develop scalable data pipelines Build and optimize AI/ML models Develop agent-based solutions using modern Agentic AI frameworks Work with LLM and Generative AI solutions (prompting, orchestration, evaluation) Process and transform large datasets using distributed computing frameworks Collaborate with stakeholders to translate business needs into technical solutions   Your skills    Minimum 4 years of commercial experience in similar roles Very good knowledge of Python 3.x Experience with Agentic AI frameworks and AI agent development Experience with GCP, VertexAI, Google ADK Knowledge of LLM and Generative AI (prompt engineering, orchestration, evaluation) Experience with PySpark and distributed data processing Practical experience within the Big Data ecosystem Experience in developing analytical or alerting models Solid understanding of data pipelines and scalable data architectures Strong analytical and problem-solving skills English level B2+   We offer you    Hybrid work in one of our locations: Lodz, Poznan, Krakow, Warszawa, Wroclaw (2 office days per week)  Working in a highly experienced and dedicated team  Benefit package that can be tailored to your personal needs (private medical coverage, sport & recreation package, lunch subsidy, life insurance, etc.)  On-line training and certifications fit for career path  Access to e-learning platform  Mindgram - a holistic mental health and wellbeing platform  Work From Anywhere (WFA) - the temporary option to work remotely outside of Poland for up to 140 days per year (including Italy, Spain, the UK, Germany, Portugal, and Bulgaria)