Execute and oversee upgrade activities across DEV, SIT, UAT, Pre‑Prod, and Production environments. • Lead retrofit, integration, build preparation, deployment, patching, COB support, and environment management. • Ensure alignment of retrofitted components with target release (R25) and upgrade standards. • Review and validate IRDs, technical specifications, mapping sheets, retrofit plans, and deployment packages. • Support SIT/UAT with defect resolution, build updates, and technical clarifications. • Participate in and guide cutover planning, mock runs, and go‑live operations. Own the upgrade plan, timelines, task sequencing, milestone tracking, and risk/issue management. • Coordinate daily execution across technical teams: L3 dev, EF, DBAs, infra, environment teams, and test teams. • Conduct daily stand‑ups, progress reporting, dependency tracking, and stakeholder updates. • Prepare and maintain project artifacts including project plans, RAID logs, resource allocation sheets, and status reports. • Ensure cross‑team collaboration between functional, technical, infra, and client teams. • Manage governance calls, steering updates, and communication with client leadership. • Drive quality assurance across all upgrade streams and enforce coding, documentation, and deployment standards