Vinit Kumar

Principal Engineer · Open Source Fellow · Building Systems That Scale

Blog • Twitter • LinkedIn • Email • GitHub

What I Do

I architect and ship backend systems that handle millions of requests daily. I lead teams to design databases that don't break at scale, optimize APIs that serve billions of queries, and build platforms that power real businesses. At the same time, I maintain production-grade open-source projects used by thousands of developers worldwide.

Core Expertise

Languages & Frameworks: Python · Go · Django · TypeScript · PostgreSQL · Redis

Domains: Backend Architecture · Distributed Systems · High-Scale APIs · Database Optimization · DevOps · System Design

Tools & Infrastructure: Docker · Kubernetes · Git · Neovim

Recent Impact

Scalefusion Live Terminal

Real-time remote terminal & command execution across millions of devices (macOS, Windows, Linux). Built the backend infrastructure handling concurrent connections at scale with <100ms latency.

Django CMS — Core Contributor & Fellow

Maintain one of the world's most production-critical open-source CMS platforms. Architected multi-tenant support handling 3,000+ websites serving millions of monthly requests. Learn more

json2xml — 50K+ Downloads/Month

Production-grade JSON-to-XML converter for Python. Trusted by enterprises for mission-critical data transformations.
·

pdf-joiner — Native macOS Performance

Built a lightweight, dependency-free PDF merging tool in Go. Focus on speed and simplicity.

Vim/Neovim Configurations

Battle-tested, production-ready editor setups optimized for Python, Go, and TypeScript development.
·

Proven Track Record

• Multi-tenant CMS Platform — Architected backend handling 3,000+ sites, millions of monthly requests, zero downtime deployments
• Social Schools Platform — Built complete communication infrastructure for Dutch primary education (backend, APIs, frontend, mobile apps)
• High-Scale API Design — Designed and optimized APIs serving billions of requests with <100ms p99 latency
• Django Software Foundation — Individual Member since 2025

Latest Blog Posts

• json2xml v6.0.1: 29x Faster with Native Rust Extension - 2026-01-16
• Building json2xml Across Three Languages in One Day - 2026-01-14
• How to Be a Good Programmer in the Age of AI - 2026-01-08
• Hello 2026 - 2026-01-06
• The 25x Speedup: Why Python Performance Rules Matter - 2025-12-27

Read more on my blog →

Today I Learned (TIL)

• [TIL] How Not To Install LazyGit on Ubuntu - 2025-07-29
• [TIL] Git Sparse Checkout for Large Repos - 2024-12-28
• [TIL] CSS Container Queries Are Game Changers - 2024-12-27

Browse all TIL posts →