Building Scalable Next.js Applications
Dec 2024As Next.js has matured, so have the patterns for building large-scale applications. Here's what I've learned building real products with it.
6 min readKaleab Shewangizaw
CTO, Pazimo · Addis Ababa, Ethiopia
I build products.
CTO at Pazimo, Addis Ababa. Web, mobile, and the systems behind them.
Experience
CTO
NowPazimo
2025 — Present
Full Stack Developer
Prime Software PLC
2024 — 2025
Web Dev Bootcamp Instructor
GDG — AAU
2023 — 2024
Education
BSc Computer Science & Engineering
Addis Ababa University (AAiT)
2022 — Present
Frontend Career Path
Scrimba
2022 — 2023
Problem Solving Track
A2SV (Africa to Silicon Valley)
2023
Stack
Frontend
React · Next.js · TypeScript · Tailwind CSS · Framer Motion
Backend
Node.js · Express · MongoDB · PostgreSQL · REST APIs
Tools
Git & GitHub · Docker · Figma · VS Code
Latest Writing
All →Why I Migrated from MongoDB to PostgreSQL
Nov 2024I've used MongoDB for years. Then a project made me switch to PostgreSQL — and I haven't looked back. Here's what I learned.
5 min readTypeScript Patterns I Wish I Knew Earlier
Oct 2024After years of TypeScript in production, here are the patterns that genuinely made my code safer, more readable, and easier to maintain.
7 min readGitHub
Featured Builds
Pazimo
2024A full-featured event ticketing platform built for the Ethiopian market. Integrates with SantimPay and Chapa for local payment processing. Users can browse events, book seats, and manage their tickets.
Next.jsNode.jsMongoDBSantimPayChapa
QLink
2024A community platform where developers ask questions, share links, and upvote/downvote content. Built with modern auth and full TypeScript type safety throughout the stack.
Next.jsBetter-authShadcn UIMongoDBTypeScript
Guava Social Blog
2024Full-featured social blog platform inspired by Medium and Reddit. Users create communities, write long-form posts, like, comment, and discover trending content.
ReactNext.jsTailwindNode.jsMongoDB
Quick Facts
4+
Years coding
10+
Projects shipped
2k+
Commits pushed
Addis Ababa
Home base
Next.js + Mongo
Favourite stack
critical
Coffee level
Download CV →
Updated Jun 2025