May 12, 2026
Your database indexes are probably wrong
Stop guessing, start understanding what your database is actually doing
#postgresql#performance#backend#databases
[ based in kolkata, india ]
Arindam
Roy.
Full Stack Engineer from India. 6+ years in the trenches of the web.
Over the last 6 years, I've worked with startups of every size, all over the world — jumping between frontend, backend, DevOps, and tech lead roles. I like building things that work well, ship fast, and don't fall apart at 3 a.m.
// Selected Technologies
React
Next.js
TypeScript
Node.js
Rust
Golang
Tailwind CSS
PostgreSQL
ReactNext.jsTypeScriptNode.jsRustGolangTailwind CSSPostgreSQL/ GitHub Activity
// repositories
Featured Work
A collection of products and tools I've built, focusing on speed, performance, and engineering.
sdk/node/src/airpay.ts
// history
Experience
A technical chronicle of my architectural contributions, team leadership, and engineering ventures in the web ecosystem.
0104/2026 - 06/2026
sploink.ai
Lead Platform Engineer
// Achievements & Impact
- 01.Architected an AI observability platform designed to monitor agent networks, reducing LLM token consumption and optimizing execution costs.
- 02.Implemented an intelligent dynamic skills library and caching system to increase AI performance and execution speed.
- 03.Developed an Agent Launcher Wizard accessible via browser and mobile web interfaces, enabling remote management and control of AI agents from anywhere.
0201/2026 - 03/2026
VA Bear
Head of Engineering
// Achievements & Impact
- 01.Led development of a real-time hiring and escrow platform for production use.
- 02.Built the core application architecture with Next.js and Convex.
- 03.Designed secure escrow payment workflows for transaction safety and trust.
- 04.Delivered a scalable and production-ready system architecture.
0304/2025 - 12/2025
Promote.fun
Tech Lead & Co-Founder
// Achievements & Impact
- 01.Built the platform from scratch and scaled it to over 16K users.
- 02.Designed a real-time analytics system for engagement tracking.
- 03.Integrated Solana USDC payments for fast on-chain transactions.
- 04.Architected the full stack system including infrastructure and deployment.
- 05.Led technical roadmap and product decisions.
0402/2023 - 09/2024
PaisaDekho
Tech Lead
// Achievements & Impact
- 01.Led a team of 13 engineers across fintech product initiatives.
- 02.Scaled the platform to over 250K users.
- 03.Migrated architecture from monolith to microservices.
- 04.Improved performance, reliability, and deployment pipelines.
- 05.Architected scalable web and mobile applications.
0510/2024 - 03/2025
Gululu Coin
Full Stack Developer
// Achievements & Impact
- 01.Built real-time gaming systems integrated with the TON blockchain.
- 02.Implemented secure wallet and transaction workflows.
- 03.Optimized backend services for high concurrency workloads.
- 04.Developed event-driven APIs for game and payment events.
0601/2022 - 02/2023
TruPay
Full Stack Developer
// Achievements & Impact
- 01.Built backend services supporting over 100K users.
- 02.Designed event-driven pipelines using Apache Kafka.
- 03.Integrated secure banking and compliance systems.
- 04.Improved reliability and performance across frontend and backend.
0701/2021 - 09/2022
BuilderKit
Junior Frontend Developer
// thoughts
Writing
Insights and deep dives on full stack architectures, smart escrow design, and frontend aesthetics.
April 28, 2026
TypeScript patterns that mass-produce fewer bugs
The stuff that actually saves you at 2am when prod is on fire
#typescript#patterns#frontend#dx
March 22, 2026
Everything I got wrong about Docker the first time
The 2am lessons about images, signals, secrets, and why your container is lying to you
#docker#devops#production#infrastructure
February 15, 2026
React is fast until you make it slow
The performance advice nobody gives you — because it requires actually understanding what's happening
#react#performance#frontend#javascript
January 8, 2026
Design APIs that don't make your frontend team mass-quit
Practical REST API patterns that separate the good from the rage-inducing
#api-design#backend#node.js#architecture
// collaborate
Looking for a
development partner?
I frequently partner with startup founders and technical leaders to engineer performant, visual-grade digital products. If you have an idea or contract work, let's construct it.
Location
Kolkata, India
22.5726° N, 88.3639° ELocal Time
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Asia/Kolkata (GMT +5:30)