Neciu Dan is the technical co-founder and tech lead of CareerOS, where he spearheads the development, maintenance, and scaling of the main application. Bringing over 12 years of engineering expertise to the table, Dan has a proven track record in the tech industry, having previously served as a Senior Product Engineer at the New York E-commerce brand, AdoreMe, and as a Senior Software Engineer at the food delivery company, Glovo.
Beyond his technical contributions, Dan is an esteemed international speaker and mentor. He passionately encourages best development practices, with a keen focus on testing, accessibility, and security. His recent speaking engagements include esteemed conferences like React Alicante, Utah JS, Techorama Belgium, and Frontmania Netherlands.
How I Fell in Hate with Microfrontends: setting the stage with my initial skepticism, why I thought microfrontends were over-engineered and stupid, and what our frontend architecture looked like at the time (single repo, shared codebase, coupled deployments) before anything changed.
Mapping Their Problems to Our Reality: connecting those stories to pain we were already feeling (deployment bottlenecks, cross-team coupling, risky releases, slow feedback loops), and how that reframed microfrontends from “fad” to “maybe this is actually the right tool for these specific issues.”
Choosing Our Microfrontend Architecture: explaining the concrete decisions we made about boundaries (how we sliced the app), integration style (routing, composition, shared design system), and tooling (build, deployment, and communication patterns), plus what we intentionally chose not to do because it would have hurt performance or complexity.
What You’ll Learn: a practical mental model for when microfrontends actually solve a problem versus when they’re just architecture cosplay, a simple way to slice your app and choose an integration style that matches your org, and a set of concrete patterns and anti-patterns you can use to either start a microfrontend journey safely or steal the good ideas without rewriting your entire frontend.
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