Software engineer · Full-stack · 5 years · India / Remote

I'm Manash. I build systems that survive production.

Full-stack engineer writing about software, scale, and what breaks in the real world.

Open for collaborations

Mobile app, iOS and Android2026In closed beta

DreamDuo

A shared goal tracker for couples. Some of what you write stays sealed until the date you picked, or until you both reach the milestone it's tied to.

Fires on the user's clock, not the server's

React Native (Expo)Node.jsPostgreSQLPrismapg-bossExpo PushS3
DreamDuo shared goal tracker
Web app2024Live

InvoiceGennie

Invoicing that runs entirely in your browser. Signatures, multi-currency, and no account to create.

No backend at all, nothing leaves the browser

Next.jsTypeScriptshadcn/ui
InvoiceGennie invoicing app
All work
Feb 2025 - Present

Senior Full-Stack Engineer and Team Lead

Ishvara Tech (formerly NexGen AI Solutions Group) · Remote

Feb 2024 - Dec 2024

Software Engineer II (Frontend)

OneClick IT Consultancy Pvt. Ltd. · Ahmedabad, India

Aug 2021 - Feb 2024

Associate Software Engineer

Laitkor Consultancy Pvt. Ltd. · Remote

Full history
Guide11 min

How to Make Cloudflare Actually Cache Static Assets

A practical guide to understanding Cloudflare static asset caching, common setup mistakes, Cache Rules, origin headers, and how to verify real cache hits with curl.

CloudflareCachingCDNPerformance
Case study15 min

1,221ms to 280ms: The Connection Pool Setting I Had Wrong

My API was slow and the database was almost idle. The bottleneck was the connection pool, and finding it took k6, a lot of graphs, and one number I had never thought about.

Node.jsPostgreSQLPerformanceLoad Testing
Guide11 min

Are You Using the Wrong Authentication Method? A Node.js Developer's Guide (Part 1)

Complete guide to authentication in Node.js. Learn session-based authentication, JWT tokens, OAuth, security best practices, and when to use each method with practical Express.js implementations.

Node.jsAuthenticationSecurityBackend
All posts
Email
[email protected]

For products, engineering, collaborations, or simply saying hello.