Lead Data Architect (AWS)

We are looking for a Lead Data Engineer with strong AWS experience for our client's data platform migration project. You will lead the migration of a legacy on-premise data warehouse (Sybase IQ) to a modern AWS-based architecture, designing and building both real-time and batch data pipelines. The role combines technical leadership with hands-on engineering: you will shape the target architecture, guide the team, and deliver the solution end to end. This is not a purely advisory position. This is a long-term contract position in a highly regulated banking environment, working fully onsite. Responsibilities - Lead the migration of a legacy data warehouse (Sybase IQ) to an AWS-based data platform. - Design and implement the target architecture built on Amazon S3 and Amazon Athena. - Build real-time data processing using AWS Lambda in Python. - Develop and run batch processing workloads with AWS Glue. - Plan and execute the data migration, including schema conversion, data validation, and source-to-target reconciliation. - Provide technical leadership to the data engineering team: set engineering standards, review code, and mentor engineers. - Work closely with architects and client stakeholders to translate business requirements into robust data solutions. - Ensure data quality, security, and compliance in a regulated financial-services environment. - Produce technical documentation: solution designs, data flows, and operating guidelines. Work Conditions - Start Date: Mid-November - Location: Prague - Long-term contract-based role - Contact with EU LLC