Rizon Kumar Rahi

Rizon Kumar Rahi

Full Stack Developer at P-41

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What I'm currently building, reading, and learning.

Last updated: April 4, 2026

Shipping production apps at work, tinkering on side projects, and dumping study notes to GitHub so future-me can search them.

🔨

Building

Day job — full-stack applications

Next.js · NestJS · TypeORM · PostgreSQL

Shipping production features end to end: React/Next.js on the front, NestJS services, TypeORM, and PostgreSQL.

Astra — AI IDE web editor

Web-based IDE experience with AI-assisted editing and workflows.

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Flight Booking App

Full-stack booking flow with Next.js and a microservices-style backend (flight & booking services).

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Code Hawk

AI-powered automated code review — Next.js 16, React 19, TypeScript, PostgreSQL, Gemini.

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📖

Reading

Designing Data-Intensive Applications

Martin Kleppmann — O'Reilly Media

The big ideas behind reliable, scalable, and maintainable systems (distributed data, storage engines, stream processing).

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🎓

Learning

HLD, LLD & SOLID

Notes

Higher- and lower-level system design patterns and SOLID rules I'm revisiting with structured notes.

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React machine-coding prep

Notes

Patterns and solutions for React take-home and live-coding style rounds.

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A2Z DSA course

Handwritten notes

Curated handwritten notes while working through an A-to-Z data structures and algorithms path.

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LeetCode

Notes

Problem write-ups, patterns, and approaches I use for practice.

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Domain-Driven Design

Task engine · Notes

DDD pattern exploration from a task-engine reference implementation.

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Change is the law of the universe. You can be a millionaire, or a pauper in an instant.

Bhagavad Gita, 2.14