We Moved a 10-Year-Old Monolith to AWS. Here's What Actually Happened.
In 2013, developers at our firm wrote the first line of code for what would become the operational backbone of one of our longest-standing clients - a monolith that handled user authentication, billing, order processing, and reporting, all in one tightly coupled codebase. It ran on physical servers in a data center two states away. No containers, no CI/CD, and documentation that could generously be called impressionistic.
For close to a decade, it worked. Gracelessly, but it worked.
Two years ago, the client came back to us - not to add features, but to get out. Costs had ballooned 40% over three years, not from growth, but from aging hardware and proprietary licenses bleeding the budget dry. During a seasonal traffic spike, the system buckled for four hours while cloud-native competitors scaled effortlessly. And the client's internal engineering team had slowed to a crawl - deploying a single bug fix...
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