Frontend Engineer with 3+ years of professional experience building high-performance, scalable web applications using React.js, TypeScript, and Next.js. Currently a Software Engineer at Onetick Technologies, Noida, India. Previously at Indus Valley Partners (fintech), where I shipped trading-desk UIs handling 200K+ row datasets with 60% rendering performance gains.
I go by codemaddy across dev communities and Maddy-O on GitHub. I care about performance, clean architecture, test-driven development, and building UIs that don't make users wait.
- Working on enterprise fintech platforms and government-scale systems
- Scaled test coverage from 0% to 90% across two production codebases
- Resolved 120+ SonarQube violations in production
- Building PICS — an AI-powered prison voice monitoring system with real-time WebSocket streaming
| Role | Company | Period | Key Impact |
|---|---|---|---|
| Software Engineer | Onetick Technologies, Noida | Sep 2025 - Present | Reusable component library, ~30% bundle size reduction, 80% test coverage |
| Associate Software Engineer | Indus Valley Partners, Noida | Dec 2022 - Apr 2025 | React + TS migration, AG Grid for 200K+ rows (60% perf gain), 0 to 90% test coverage |
Real-time prison call monitoring platform with multi-role access control
Stack: Next.js 16 (App Router, SSR) / React 19 / TypeScript / Node.js / Express / MongoDB / WebSockets / Twilio / AWS S3
- Multi-role RBAC platform (Super Admin / Admin / Prisoner) with audit logging
- Real-time call streaming via WebSockets + Twilio voice integration
- Interactive Recharts dashboards with date-range filtering and Excel export
I'm open to Senior Frontend Engineer and React.js / TypeScript roles across India and remote. Let's connect:
| Platform | Link |
|---|---|
| linkedin.com/in/maddy-o | |
| GitHub | github.com/Maddy-O |
| madandoor7s@gmail.com | |
| Portfolio | maddy-portfolio-site.netlify.app |
| Medium | @madandoor7s |
"Performance is not an afterthought — it's a feature." — Madan Mohan (codemaddy)