Rebuilding a legacy dashboard for scale
Migrated a monolithic admin panel to a modular Next.js architecture, cutting page load times and engineering onboarding time.
The client's admin dashboard had grown organically over four years into a single monolithic React application with no clear module boundaries. Every new feature risked regressions elsewhere, deploys took over 20 minutes, and onboarding a new engineer took a month before they could ship safely.
I led a phased migration to a modular Next.js architecture with clear domain boundaries, incrementally rewriting high-traffic modules first while keeping the legacy app live in production. Data access was consolidated behind a typed API layer backed by PostgreSQL, and the deployment pipeline moved to Vercel with preview environments for every PR.
The client's team now ships multiple times a day with confidence, and the modular structure has supported three major feature launches since handoff without architectural rework.
Facing a similar architecture problem?
Let's talk through what a rebuild or audit would look like for your product.
Book a discovery call