Dirag Biswas

Product Engineer, previously Senior Engineer at Binaryveda

Work Experience
NB
SDE1
Apr ‘23  →  Present
NextBillion.ai · Velocitor Solutions
Working on Route Planning and Fleet Management services for NextBillion.ai and Velocitor Solutions.
Next.js
Hono
MFE
Typescript
BV
Senior Frontend Engineer
May ‘23  →  Sep ‘25
Binaryveda Software Services Pvt. Ltd.
Senior engineer with leadership experience, delivering 10+ client projects by building complex systems including IoT network management (ESP32, BLE), custom email tooling, and interactive dashboards (D3, Next.js, Tailwind), while managing a team of 5 and leveraging AI to streamline development workflows.
Next.js
Svelte
Typescript
HB
Fullstack Engineer
Jan ‘23  →  May ‘23
Heybase
Built a collaborative WYSIWYG editor with CRDT-based real-time sync and custom Quill.js templating, independently migrated a monorepo to TypeScript, and improved app performance through code-splitting, query optimization, and resolving technical debt.
Next.js
Express.js
MongoDB
Typescript
RL
Software Engineer
Jan ‘22  →  Dec ‘22
Readyly
Built data visualization tools with React, leveraged Python for data analysis.
React.js
d3
Typescript
Python
Projects
BOSDACA modern, low-latency interface for viewing live INSAT-3x satellite imagery and meteorological data. All the features in MOSDAC, plus timelapse control, intelligent local caching, and more.
LiveGitHub
Next.js
TailwindCSS
leaflet-maps
Shadcn DropzoneReady to use File Upload Dropzone component, built with shadcn/ui and react-dropzone.
LiveGitHub
Next.js
Typescript
YomatoShare your budget and get food combinations from any restaurant of your choice available on Zomato.
GitHub
React.js
Express.js
Typescript
Blog
Jul 12, 2026·9 min read
The Polyline AlgorithmA visual walkthrough of Google's Encoded Polyline Algorithm Format, the trick that compresses extensive GPS coordinates into short ASCII strings.
Engineering
Algorithms
Maps
Apr 17, 2026·12 min read
How to move two WhatsApp accounts from Android to iOSTwo WhatsApp accounts on one iPhone using WhatsApp and WhatsApp Business, migrated from Android to iOS without losing a single chat. Sixteen steps, two iPhone wipes, and the recipe that actually works.
Mobile
WhatsApp
Migration
Apr 15, 2026·11 min read
IndexedDB vs LocalStorage vs CookiesIndexedDB is async and holds gigabytes. LocalStorage is synchronous, string-only, and caps at ~5 MB. Cookies ride HTTP requests. Here is when to pick each, and the gotchas that bite in production.
Engineering
Web
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