SAILESH SIVAKUMAR

Email: sailesh.e123@gmail.com
Phone: +91 8420228632
Location: Kolkata, India
Portfolio: https://saileshsivakumar.dev
LinkedIn: https://linkedin.com/in/sailesh-sivakumar-453061141
GitHub: https://github.com/ss251


PROFESSIONAL SUMMARY
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Software Engineer with 3 years of full-stack development experience, specializing
in modern JavaScript frameworks and Python microservices, with deep work in
onchain systems (Solidity, subgraphs, Base). Proven ability to take products from
early idea to live at scale, adapt quickly to new technologies, and manage multiple
projects concurrently.


WORK EXPERIENCE
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Lead Developer — qrcoin.fun (Remote)
March 2025 - Present
qrcoin.fun (https://qrcoin.fun) is a daily onchain auction for attention.
- Scaled the platform to 40,000+ users / 10k DAU by building the complete Farcaster
  mini-app and web application (auction + airdrops) with a viral daily reward
  system, using Neynar APIs for notifications and Farcaster user data.
- Built V2-V5 EVM smart contracts for USDC auctions (V5 adds batch settlement),
  integrated V4 collaborative bidding, and deployed subgraphs (V1-V4) on The Graph
  with comprehensive auction metrics and bid-history indexing.
- Implemented real-time bidding with Wagmi watchEvent listeners and Supabase
  WebSockets for live presence.
- Migrated auth to Privy for Twitter/Farcaster social login; built an Upstash/QStash
  queue processing thousands of concurrent claims with retries.
- Built an admin dashboard tracking engagement across 9 wallet pools handling live
  USDC/ETH airdrops on Base mainnet.
Reference: Jake A - qrcoindotfun@gmail.com / https://x.com/0fjake

Fullstack Developer — Eviden (Client: Parallon/HCA), Nashville, TN
September 2021 - March 2024
- Developed web applications using JavaScript frameworks, focusing on user-centric
  design and performance.
- Led feature development, integrated APIs, and created new views across business
  applications.
- Built and maintained Python Azure Functions; used SQL for data management and
  timer-triggered scheduling.
- Orchestrated deployments with GitHub Actions, Jenkins, Azure, and OpenShift across
  dev, QA, UAT, and production.

Frontend Developer (Contract) — Lazarus Network (Remote)
December 2022 - June 2023 | https://lazarus.network
- Built Flexable, a Web3 event platform with NFT-based ticketing and smart-contract
  integration.
- Led frontend for Erebrus, a decentralized VPN with NFT-gated access control.
- Built UI and contract interactions for MyriadFlow, an NFT marketplace builder.
- Stack: Next.js, TailwindCSS, Hardhat, Ethers, Node.js, GraphQL, PostgreSQL.
Reference: Shachindra - https://x.com/Shachindra92


EDUCATION
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B.S. in Informatics (Data Science Track)
University of Washington - Seattle | GPA: 3.54
September 2017 - June 2021

Ethereum Developer Bootcamp — ChainShot (Remote)
April 2022 - June 2022
Solidity, EVM, gas optimization, security best practices, Ethers.js, dApp dev.


TECHNICAL SKILLS
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Languages:   JavaScript, TypeScript, Python, Solidity, SQL, R, Java, Golang
Frontend:    React, Redux, Next.js, Tailwind CSS, Responsive Design
Backend:     Node.js, Express, GraphQL, REST APIs
Blockchain:  Ethers.js, Wagmi, Viem, Hardhat, Smart Contracts, Subgraphs
Cloud/DevOps:Azure Functions, Docker, GitHub Actions, Jenkins, Vercel
Databases:   PostgreSQL, Supabase, Redis
Tools:       Git, Postman, VS Code


SELECTED PROJECTS
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KesenMemento — Winner, Kesennuma Hackatsuon 2025 (Japan). A civic memory map
placing community stories on a 3D map. Team build.

Lasagna — Aleo Privacy Buildathon (AKINDO). A private prediction market on Aleo
using deferred aggregate revelation; earned 765 USDT in wave grants.

Agentverse — Winner, Web3_AI Hackathon (Encode/Galadriel). AI agents as NFTs.

Stat Frame — Winner (Best Use of Lum0x SDK; 2nd Best Nanograph API), FarHack 2024.

Hack or Die — 1st Place, THE FUTURE OF GAMING (Ready Player 3). Multiplayer co-op
blockchain game.

zkPay — zkBob Best Use + pool prizes, ETH India. Zero-knowledge payment gateway.