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

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

Kraków, PL 30-302, Łódź, PL 90-118, Warszawa, PL 00-839, Poznań, WP 61-569

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 optimise 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, Vertex AI, 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: Łódź, Poznań, Kraków, Warszawa, Wrocław (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.)
• Online training and certifications fit for career path
• Access to e‑learning platform
• Mindgram – a holistic mental health and wellbeing platform
• Work From Anywhere (WFA) – temporary option to work remotely outside of Poland for up to 140 days per year (including Italy, Spain, the UK, Germany, Portugal, and Bulgaria)
• Social events