You will assess existing systems, define pragmatic migration and modernization paths, turn business and product needs into target-state AWS architectures, and guide implementation so the platform becomes more scalable, secure, reliable, operable, cost-aware, and compliant. Establish cloud security posture and vulnerability-management patterns using services such as AWS Config, Security Hub, Inspector, GuardDuty, CloudTrail, and centralized audit-log retention, as applicable to the environment.