01
Backend & APIs
TypeScript and Go services with REST and WebSocket APIs, JWT, RBAC and validation at the edge.
- Node.js
- Express
- Gin
- PostgreSQL
- MongoDB
Available for opportunities
I build software
that survives
production.
I'm Mayank Yadav - a full stack developer with 2+ years building API-driven web products with TypeScript, Node.js, React and Next.js.
System Analyst at Ancilar
github.com/mynk03100k+
Users served
99%
Uptime held
500+
LeetCode solved
2+ yrs
Production work
TypeScriptJavaScriptGoPythonSQLSolidityC++Node.jsExpress.jsFastAPIGinREST APIsWebSocketsSocket.IOgRPCPostgreSQLMongoDBRedisRabbitMQBullMQReactNext.jsTailwind CSSTanStack QueryZustandDockerLinuxNginxGitHub ActionsPrometheusGrafanaERC-4337Permit2wagmiviemFoundryStripe ConnectClaude Agent SDK
01About
Full stack, API first.
I'm a full stack developer who builds API-driven web products: TypeScript and Node.js backends, React and Next.js frontends, and the queues, payments and real-time updates in between.
At Ancilar I've shipped marketplace, token launch, trading and AI agent platforms, and was promoted to System Analyst in Nov 2025. Before that I built Yuva Portal at Young Indians, serving 100,000+ users.
Download résumé02What I work on
Four things I do well.
02
Frontend
React and Next.js apps wired to real APIs, forms and wallets.
- React
- Next.js
- Tailwind
- TanStack Query
03
Distributed systems
Queues, idempotent webhooks, distributed locks and retries that survive a restart.
- RabbitMQ
- BullMQ
- Redis
- Docker
04
Payments & Web3
Stripe Connect, Permit2 signatures, ERC-4337 paymasters and on-chain escrow.
- Stripe
- ERC-4337
- Permit2
- viem
03Selected projects
Things I've built.
- Dec 2025
FiduWork
Freelance marketplace on 10 TypeScript microservices, with Stripe Connect and optional USDC escrow.
- TypeScript
- Node.js
- Next.js
- BullMQ
- Stripe
- Aug 2025
HyperPNL
Prop trading on Hyperliquid: an evaluation simulator with live positions and PnL over WebSockets.
- Node.js
- TypeScript
- WebSockets
- ERC-4337
- May 2025
SocialFi
Gasless USDC tips for YouTube creators, batched up to 100 per transaction by a Go relayer.
- Go
- Gin
- RabbitMQ
- MongoDB
- Next.js
- 2026
AgenticStudio
Create AI agents by conversation; each one runs in its own Docker container.
- Python
- FastAPI
- Claude Agent SDK
- Docker
- React
- 2026
UnitokenSwap
Intent-based swap protocol where fillers compete in RFQ auctions, across 7 Rust microservices.
- Rust
- Axum
- PostgreSQL
- Redis
- 2025
Blocky Txn
Blockchain simulator: a Go execution node with libp2p gossip and Merkle Patricia Trie state.
- Go
- libp2p
- gRPC
- LevelDB
- 2023 - 24
Udyam Uplift
Live web platform for CAXpert with OTP login and personality analysis.
- Node.js
- React
- MongoDB
- Firebase
- 2022 - 23
WasteConnect
Multilingual portal for crop-residue trade. Podium at National Agro Hackathon 2023.
- Node.js
- React
- MongoDB
- Firebase
04Experience
Where I've shipped.
Two companies, three roles.
Nov 2025 - Present
System Analyst
Ancilar · Indore, India
Full stack work on a freelance marketplace, a Solana token launch platform, a perp DEX order router and an AI agent platform.
- FiduWork
- Wewe
- HyperDex
- AgenticStudio
Aug 2024 - Nov 2025
Associate System Analyst
Ancilar · Indore, India
Built a gasless tipping relayer in Go, a prop trading simulator on Hyperliquid, and a cross-chain relayer that cut delivery latency by 45%.
- SocialFi
- HyperPNL
- Cross-Chain Relayer
Nov 2022 - Mar 2024
Full Stack Developer Intern
Young Indians · Bhopal, India
Built Yuva Portal's React frontend and 20+ endpoint REST API for 100,000+ users, and kept it at 99% uptime.
- React
- Node.js
- Express.js
- MongoDB
- Nginx
05Recognition
Hackathons, ratings, podiums.
01
500+ LeetCode problems
Contest rating 1862 - strong algorithmic problem-solving baseline.
02
5-star C++ on HackerRank
Top-percentile language proficiency rating.
03
National Agro Hackathon 2023 - Podium
WasteConnect finished on the podium among 200+ teams nationally.
04
Yellow Network Hackathon 2025 - IIT Delhi
Presented SocialFi gasless EIP-4337 relayer on Yellow SDK + Nitrolite state channels.
06Contact
Drop me a line.
Best for collaborations, role inquiries, and Web3 infra questions. I read every message.