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Large-Scale Server OS Upgrade & Migration

Role: Architect / Primary

Company: HHAeXchange

Duration: 2022-08-01 – Present

Project Overview

Architected and executed the migration of 250+ production server instances
across AWS and GCP from CentOS 7 (end-of-life) to Rocky Linux 8.

Defined migration standards, automated validation workflows, and rollback
strategies to ensure minimal disruption across multi-tenant, regulated
healthcare environments. Coordinated phased rollouts and post-migration
hardening with engineering and operations teams.

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