Data & AI Engineer

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Description

Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together! For our Client we are looking for an experienced Senior Data & AI Engineer to join a large-scale digital transformation initiative within an international enterprise environment. This is a full-time, hybrid role based in Warsaw , with an expected 50/50 split between remote work and working from the Warsaw office . About the role As a Senior Data & AI Engineer, you will combine data engineering, analytics and AI engineering . You will design and maintain enterprise data models, datasets and pipelines, ensure data quality and reporting continuity during system transformation, and develop AI solutions based on governed enterprise data. You will work closely with product teams, business stakeholders, architects and data specialists in an international environment. Your responsibilities Design and maintain data models, analytical datasets, data pipelines and semantic layers . Develop and optimize ELT/data integration processes . Support data migration and integration with target enterprise systems. Ensure continuity and reliability of reporting throughout system transformations. Build automated data-quality rules, monitoring, alerts and reconciliation processes . Identify data inconsistencies, dupl

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