// FULL-STACK & SYSTEMS ENGINEER

DHRUVA SINGH
CHAUHAN

I make slow systems fast and complex systems ship.

> Harder problems are worth more.

// LATENCY TRACE — SourceForceAI · 60M+ record DB

Before
60s+
After
~12s
0s30s60s
↓ 80%
View systemsDownload CV ↗

Available for opportunities·India (IST)·Open to remote

0%Latency reduced60s+ → ~12s
0M+Records servedsingle DB
0K+API calls / daycluster + Redis
0+Systems shippedsolo + team
// SYSTEMS

Things I’ve shipped

[01]

SourceForceAI

Production

Supplier discovery at scale

RoleFrontend architecture + backend API optimization

60s+ → ~12s

Impact
  • Queried a 60M+ record database in ~12s, down from 60s+ — an 80% latency cut via Redis caching, database indexing, and query restructuring.
  • Sustained 80,000+ API calls/day with Node.js cluster mode + Redis.
  • Implemented SSE for real-time data streaming and vector-embedding-based retrieval.
Next.jsNode.jsRedisFirebaseTypeScript
[02]

MathLadder AI

Production · Solo

Adaptive assessment engine

RoleSole engineer — frontend, backend, database, engine

Built solo, end to end

Impact
  • Engineered a real-time adaptive Q&A system that reshuffles questions across chapters, topics, difficulty (L1–L4) and marks-weightage live, mid-test.
  • Wrote Jest unit tests across critical API endpoints and React components for production reliability.
  • Drove architecture and tech-stack decisions directly with the CEO, from design to delivery.
Next.jsNode.jsPostgreSQLTypeScript
[03]

EarthLink

Production

Enterprise ISP platform

RoleGraphQL APIs + full frontend

Enterprise-scale traffic

Impact
  • Built and maintained GraphQL APIs serving live, enterprise-scale traffic for one of the largest US internet providers.
  • Delivered full frontends alongside REST and GraphQL endpoints with secure auth and robust error handling.
Next.jsNode.jsGraphQLPostgreSQLTypeScript
[04]

EvilGeniusGames

Shipped

Performance & UX overhaul

RoleFrontend + performance

Lighthouse 42 → 80+

Impact
  • Lifted Lighthouse performance from ~42 to 80+ and SEO to 100 (mobile + desktop) via code-splitting, lazy loading, image optimization, and semantic HTML.
  • Built a custom print/download system that dynamically scales font sizes to fit PDF containers — zero overflow, zero truncation.
Next.jsTypeScript
// CAPABILITIES

Stack

FrontendReact · Next.js (SSR/SSG) · TypeScript · JavaScript (ES6+) · Tailwind CSS · Redux · Zustand
BackendNode.js · Express · GraphQL · REST · WebSockets · SSE · Node Cluster Mode
DataPostgreSQL · MongoDB · Firebase · Redis
InfraDocker · Git · GitHub · GitLab · Jenkins · CI/CD · Vercel · AWS
TestingJest
// CONSOLEtype 'help' to explore
dhruv@quest — zsh
dhruv.quest — interactive console v1.0
type 'help' to list commands
dhruv@quest:~$ 
// ESTABLISH CONNECTION

Let’s build something hard.

Emailcdhruvasingh@gmail.com
Phone+91 85330 95067
LocationAligarh, UP — India (IST)
GitHubhttps://github.com/dhruva1712/
Send a messageAvailable for opportunities · open to remote