Modernizing the Legacy by Aggelos Bellos

Aggelos Bellos takes us behind the scenes at TalentLMS to show how they tackled a decade‐old monolith without grinding innovation to a halt or turning every refactor into a code Jenga disaster. They smashed DevOps silos, reorganized teams using Domain-Driven Design and Team Topologies, and introduced living documentation, event-driven architecture, and zero-downtime migrations.

Along the way they leaned into the monolith’s strengths, sidestepped the micro-legacy trap, and laid the groundwork for a sustainable modulith. Expect practical takeaways, hard-won lessons, and a few battlefield anecdotes that prove large-scale modernization can be both strategic and (dare we say) fun.

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