Arvind
I build platforms end-to-end and run them myself.
Overview
Social Links
GitHub Contributions
Hello
- I'm Arvind — a full-stack developer who likes owning the whole stack: the code, the server, the deploy, and the 3 AM incident.
- I build Next.js / React storefronts over Node.js and Java backends, plus Telegram / WhatsApp bots, payment integrations and schedulers that run 24/7.
- Everything I ship runs on Linux VPS infrastructure I manage myself (nginx, PM2, SSL, cron, monitoring): storefronts, bots, cron pipelines and this site.
- Off the clock I grind DSA on LeetCode and GeeksforGeeks — 1,000+ problems and counting, all tracked on Codolio.
- Open to full-stack / platform engineering work, automation projects and freelance builds — idea to deployed product.
Projects(5)
Own-account UPI collection gateway with automatic payment matching and no third-party fees.
- Unique-paise amount matching maps incoming payments to orders automatically.
- Android notification-reader companion app confirms payments in real time, no bank API or scraping.
- Merchant dashboard, API keys and webhook callbacks for instant confirmation.
- Node.js
- Express
- SQLite
- Android
- nginx
- PM2
- Webhooks
Experience
Freelance
- Location
- India
- Location type
- (Remote)
- Employment status
- Current
- Build and operate production systems end-to-end for clients: payment infrastructure, e-commerce storefronts, support automation and developer tooling.
- Own the full lifecycle: architecture, code, deploys and monitoring on self-managed VPS infrastructure (Linux, nginx, PM2, SSL, cron).
- Ship Next.js / React frontends over Node.js and Java backends with REST APIs and SQL databases.
- Integrate payment gateways (UPI, cards, crypto) with webhook signature verification, reconciliation and auto-refunds.
- TypeScript
- Next.js
- Node.js
- Express
- SQLite
- nginx
- PM2
- Payment APIs
- Node.js
- Telegram Bot API
- WhatsApp API
- SQLite
- REST APIs
- cron
- Linux
- nginx
- PM2
- Cloudflare
- SQLite
- Security
Stack
Backend
Infrastructure
Automation
Payments
Education
- Core CS: data structures and algorithms, DBMS, operating systems, computer networks.
- Coursework projects in Java (banking management system) and machine learning labs in Python.
- 1,000+ DSA problems solved across LeetCode, Codeforces, CodeChef and GeeksforGeeks alongside the degree.
- Java
- Python
- DSA
- DBMS
- Operating Systems
- Computer Networks
- Machine Learning
