Key responsibilities Act as L3 team member for incidents: triage, mitigation, customer communication, RCA, and closure. Troubleshoot and resolve complex data/integration issues (SFTP/CSV, REST APIs, ETL), SKU/store hierarchy mismatches, and promo/calendar ingestion errors. Diagnose forecast variances: validate model inputs, analyze diagnostics, and recommend configuration or data corrections. Reproduce issues in test tenants and produce detailed defect packages (logs, SQL extracts, repro step