Shanu Sivakumar
Full Stack / Frontend Engineer, building things too cool not to ship.
About
I'm a Full Stack Engineer who builds enterprise SaaS for a living: React UIs that stay fast no matter how much data you throw at them, and billing pipelines that move real money without dropping a cent. If it's complex under the hood but simple on the surface, I'm into it.
Outside work, I build side projects like game trackers, npm packages, and desktop apps, either to solve a problem I'm facing or because the idea wouldn't leave me alone.
Languages
Frameworks & Libraries
Tools
Databases & Services
Projects
NextLevel
InvoicEzz
FreeRam
C#/WPF tray app that silently trims background processes and reclaims RAM without rebooting.
Laddr
draftDrag-and-drop tournament brackets on an infinite canvas, built with @xyflow/react.
Background
Experience
Full Stack Developer @ SurveySparrow
- Led the rebuild of the legacy Mobile Web platform in under 3 months using React and JavaScript, leveraging TanStack Query and @dnd-kit to architect a touch-friendly drag-and-drop survey builder integrated with backend APIs that drove a 200% increase in mobile completion and creation rates.
- Modernized data fetching across the platform by migrating from Redux/Axios to TanStack Query, optimizing server-state management and caching to reduce frontend network overhead by 20%.
- Rebuilt the Ticket Management platform with parent-child ticketing, advanced filtering, keyboard-friendly workflows, and HubSpot/SparrowDesk API support, improving support team navigation speed by 50%.
- Designed and implemented an interactive Executive Dashboard for Ticket Management, engineering custom date ranges, paginated list views, and chart visualizations to provide enterprise clients with real-time operational analytics.
- Developed core productivity features including a Lexical-based rich text editor, custom macros, quick replies, and reusable attachment viewers while integrating Node.js backend services to automate ticket workflows.
- Built full-stack pricing, upgrade, trial expiry, and feature-gating infrastructure, implementing backend microservices to enforce usage limits, manage Stripe billing, and handle subscriptions.
- Engineered core growth automation tools inside the "Area51" internal super-admin console, creating an automated seasonal campaign manager and handling cross-platform subaccount unlinking with real-time billing synchronization.
- Expanded authentication and platform security by developing Apple Sign-In, multi-channel 2FA (Email, SMS, TOTP), and password policy enforcement flows backed by PostgreSQL and Redis.
- Engineered a centralized library of reusable components and shared UI systems including standardized banners, onboarding widgets, and sandbox tooling reducing frontend development redundancy by 30%.
Education
Track every game you've played, dropped, or dreamed of finishing.
currently playing: Horizon Zero DawnReplacedF1 25
Let's build something together
Interesting problem, open role, or just a game recommendation? My inbox is open.
hello@shanu.dev