Modernizing a Decade-Old Monolith

Aggelos Bellos walks us through TalentLMS's epic journey of bringing a ten-year-old monolith into the modern age—without turning every refactor into code Jenga. By smashing DevOps silos, reorganizing teams with Domain-Driven Design and Team Topologies, and rolling out living documentation, event-driven architecture, and zero-downtime migrations, they found a groove for continuous innovation.

Along the way, they learned to lean into the monolith’s strengths (no micro-legacy traps here) and build a sustainable modulith architecture. Expect practical tips, battle scars, and a few laughs from the front lines of large-scale modernization.

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