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case study

Codebase Optimization and Hosting Migration

Stabilized a legacy-heavy platform and executed a zero-downtime migration to WPEngine — cutting infrastructure costs and improving performance.

Client

National media publisher with a high-traffic content platform

Role

Migration Strategist & Performance Optimizer

Timeline

~1 month

Stack

AWS (legacy), WPEngine (target), CI/CD, CloudFront, PHP, Bitbucket Pipelines

The Challenge

The platform was bleeding money on AWS. Legacy code was slow, fragile, and over-scaled to compensate. WPEngine was the target — but the code and infrastructure weren’t ready. Migration risks were high: downtime, broken features, and unstable UX.


My Role

I stabilized the codebase and led a zero-downtime migration — cutting infrastructure costs and laying the groundwork for scalable, low-risk deployment.


Solutions Delivered

  • Ran a backend optimization sprint to kill major performance bottlenecks
  • Transitioned blocking scripts to lazy-loading, speeding up first render
  • Rebuilt caching layers for frontend + server-side, tailored to WPEngine
  • Cleaned up database bloat: autoloaded options, transients, and legacy cruft
  • Implemented rollback-ready CI/CD with Bitbucket Pipelines
  • Added observability and hardened error handling for smoother ops
  • Standardized deployment processes for fast, safe releases

Business Outcomes

  • Zero-downtime migration to WPEngine — millions of visitors, uninterrupted
  • Slashed infra costs by cutting AWS over-provisioning
  • Faster deploy cycles, freeing engineers from dev-ops firefighting
  • Legacy code stabilized — modernization-ready foundation in place
  • Fewer emergencies, more headroom to focus on actual growth
infra-optimization migration legacy-systems

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