- Acquire, validate, and maintain operational and financial data from multiple primary and secondary sources including rent roll reports, AR reports, and trial balance preparations - Perform data quality checks on tenancy schedules, arrears templates, dashboards, and source systems and raise JIRA defects when required - Clean, filter, and resolve data inconsistencies across frontend and backend systems - Manage daily SFTP data uploads and process external data sources such as RCA, CBRE-EA, Moody's Analytics, NCREIF, Altus, CoStar, and RealPage - Maintain and update climate risk data (MSCI CVaR) and performance datasets for CE and UK assets - Collaborate with engineering and product teams to reduce ETL issues and support UAT and product delivery - Use Power BI, SSMS, Excel, and JLLGPT for reporting, analysis, and validation - Identify process improvement opportunities to reduce manual effort and improve data quality - Support data warehousing activities including database maintenance, b...