Harsh Kasana
I ship DeFi products end-to-end — ideation to production. Taste over tooling.
Building DeFi infrastructure at Reactive Network. Final-year B.Tech at IIIT Nagpur.
As Featured In
How I Build
The path from idea to shipped is the same every time, regardless of stack — contract, web app, desktop binary, or infra:
Argue with AI before code
I don't ask AI to validate me — I ask it to break me. I pitch the idea, it counters, I push back, it counters harder. By the time I open an editor, the direction has survived a real adversary, not just my own optimism.
MVP, not a deck
Whatever shape the product needs — web app, desktop binary, on-chain protocol, mobile, internal infra — I build the smallest version that proves the loop end-to-end. No half-done branches, no “I'll come back to this.”
New stack? Steep, then ship
If a project needs something I haven’t built before, I don’t fake it. I read codebases that already do it well, copy the patterns into my head, then build with them. Electron + native screen capture (FocuClone), Solana perpetuals via Flash/Drift (Hashtro), x402 micropayments (rc-agents) — none of that was familiar before I shipped it.
Finish
Every project on this page has a live URL or a video. I don't list ideas, and I don't leave half-finished work behind me.
Selected Projects
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About
I'm a Solidity & DApp Developer at Reactive Network and a final-year B.Tech (ECE) student at IIIT Nagpur (CGPA 8.37). My focus: Reactive Smart Contracts, cross-chain architecture, and making blockchain accessible to non-technical users.
I write about blockchain, DeFi systems, and product thinking on Medium. My work spans no-code DeFi platforms, AI agents that autonomously manage on-chain positions, NFT royalty enforcement, and developer tooling for Reactive Network.
Where I focus
Smart Contracts
Production deployments on EVM mainnets and Solana. Reactive Smart Contracts as a daily driver.
Solidity · Reactive SCs · Rust + Anchor · Foundry · Hardhat · wagmi/viem
Full-Stack Product
Contract, API, and UI in the same week. Realtime, auth, and KYC where the product needs them.
Next.js · TypeScript · FastAPI · Node.js · Supabase + Postgres · Convex
AI Integration
Natural language → on-chain action. Agent loops, MCP servers, x402 micropayments.
Gemini · Claude / Claude Code · MCP · x402 · TensorFlow
also fluent inElectron · Docker · WebSocket · Privy · Tailwind · Framer Motion · ffmpeg · Vercel · Sui · Citrea · Base
What I'm Looking For
Roles
Solidity / Smart Contract Engineer · Full-Stack Web3 · DeFi Protocol Engineer
Stage
Seed → Series B (early enough to own real surface area)
Location
Remote, or relocate for the right team
Available
Full-time from June 2026 (graduating May 2026)
Open to founding-engineer roles where the team is okay with someone growing into the title.
Journey
Solidity & DApp Developer
Reactive NetworkJul 2025 — present
Building production smart contract systems and DeFi tools on Reactive Network. Currently working on Liquidation Protection for ReacDEFI.
Blockchain Developer Intern
Reactive NetworkApr — Jul 2025
Developed cross-chain automation protocols and contributed to core infrastructure.
$9K Grant + Press Coverage
Reactive NetworkMar 2025
REACTOR featured on Chainwire, CryptoSlate, Blockchain Magazine, and BlockTelegraph.
1st + 2nd Place — International Reactive Hackathon
HackathonNov 2024
Won two placements in the same hackathon with separate cross-chain protocol submissions.
$1,000 — US Blockchain Bounty Program
Bounties2024
$400 + $600 from two separate blockchain protocol bounties.
B.Tech ECE — CGPA 8.37
IIIT Nagpur2022 — 2026
Electronics and Communication Engineering with focus on distributed systems.