Web3 Engineer
Turning complex protocol mechanics into usable products
Production apps across Ethereum, Base & Arbitrum
Trading, lending, and liquidity interfaces plus backend services that process on-chain events and sync data across networks.
Production DeFi work — what was hard, what I built, and why it mattered.
Cross-chain yield optimization
Challenge
Cross-chain yield logic is opaque—users can't track balances, APY, or portfolio health across Bitcoin, Monero, and Ethereum.
Solution
Built Earn dashboard with subgraph-indexed events, multi-chain balance fetching with fallback RPCs, deposit/withdraw flows, and Account Abstraction for gasless onboarding.
Impact
Abstracted complex yield mechanics into a single interface protocol teams can ship inside Safe App.
Serai L1 cross-chain DEX
Challenge
Serai's non-EVM runtime makes cross-chain swaps between BTC, XMR, and ETH inaccessible to users accustomed to EVM wallet UX.
Solution
Built multi-chain trading UI with keystore wallets, RainbowKit, custom non-EVM authentication, and ShadCN components aligned to the design system.
Impact
Enabled users to interact with complex chain logic through familiar swap interfaces.
Private Uniswap v4 hook
Challenge
On-chain swaps leak intent and expose users to MEV on public mempools.
Solution
Built Uniswap v4 hook validating encrypted orders and recording encrypted outputs using Fhenix CoFHE.
Impact
Demonstrated private, intent-based swap architecture as Atrium Academy capstone.
Turning complex protocol mechanics into usable products
I'm a Web3 engineer focused on turning complex protocol mechanics into usable products. Over the past few years I've worked across the full stack, building production DeFi applications with Next.js, React, TypeScript, Ethers.js, Express, MongoDB, The Graph, and smart contract integrations.
My work has ranged from developing trading, lending, and liquidity management interfaces to building backend services that process on-chain events, maintain real-time points and qualification systems, and synchronize data across Ethereum, Base, and Arbitrum. I've designed and deployed subgraphs, integrated wallets and blockchain infrastructure, optimized application performance, and collaborated closely with protocol teams to simplify complicated financial workflows into intuitive user experiences.
More recently, my interests have expanded beyond implementation into protocol and market design. I actively research AMM mechanisms, dynamic fee models, liquidity incentives, oracle systems, LVR reduction, trading behavior, and cross-chain infrastructure—operating at the intersection of engineering, product thinking, and DeFi research.
Full-stack DeFi on Ethereum, Base, and Arbitrum—trading and lending UIs, on-chain event pipelines, subgraphs, wallet integrations, and multi-chain data sync.
Real-time points and qualification systems, subgraph-driven frontends, and close collaboration with protocol teams to turn complex financial workflows into clear user experiences.
AMM mechanisms, dynamic fees, liquidity incentives, oracle design, LVR reduction, and cross-chain infrastructure—understanding not just how systems are built, but why they work.
Next.js · React · TypeScript · Ethers.js · Express · MongoDB · The Graph · Solidity
Tools I use to ship production dApps and protocol work.
From frontend engineering to DeFi infrastructure and market design.
2026
Built the Earn dashboard with cross-chain YieldCoin balance tracking, APY calculations, and portfolio analytics for Bitcoin, Monero, and Ethereum.
Next.js, Ethers.js, Subgraph, Account Abstraction, Safe App, Zustand, TypeScript, CCIP, Multi-chain
2025
Contributed to FerrySwap, a decentralized exchange on Serai Layer 1, enabling cross-chain swaps between Bitcoin, Monero, and Ethereum.
Next.js, Serai L1, RainbowKit, TailwindCSS, ShadCN, Ethers.js, TypeScript, Multi-chain
Completed the Uniswap Hook Incubator cohort, building Uniswap V4 hooks and capstone projects. Built TrunkGuard a confidential swap protocol on Fhenix using Fully Homomorphic Encryption for private on-chain swaps.
Solidity, Uniswap V4 Hooks, Fhenix, FHE, TypeScript
Developed subscription page features and enhanced frontend security through penetration testing, input sanitization, and NPM packages for automatic validation to protect database integrity.
Next.js, TypeScript, Node.js, Tailwind CSS, JavaScript
2024
Redesigned the entire application UX, fixed critical blockchain data bugs using Ethers.js and GraphQL, improved performance rating from 40 to 70, and built subgraph integrations for new smart contracts.
Next.js, TypeScript, Ethers.js, Express.js, AWS SQS, Solidity, Subgraph
2023
Designed and implemented essential reusable components in Next.js with TypeScript. Boosted engagement with creative solutions in a startup environment.
Next.js, TypeScript, Node.js, Express, React Query, MongoDB, Tailwind CSS
Apr 2023 - May 2023 · Remote (Freelance)
Developed a bespoke internal tool with login, customer management, and sales features. Designed user-friendly interfaces with REST API integration.
Next.js, Tailwind CSS, JavaScript, REST API
2022
Contributed to the Stake sSPELL Bridge Smart Contract development using Solidity. Implemented bridge mechanism for seamless cross-chain token transfers.
Solidity, Bridges, Ethereum, Blockchain, React.js
2023
Aug 2019 - May 2023 · Hubli, Karnataka
Graduated from KLE Institute of Technology with a degree in Computer Science and Engineering.
What I'm researching now — and notes I'm writing along the way.
Uniswap v4 Hooks
Building and studying hook architectures for custom pool logic.
LVR Reduction
How AMM design can minimize loss-versus-rebalancing for LPs.
Dynamic Fees
Fee models that respond to volatility, flow, and market conditions.
Hyperliquid Architecture
Order book + on-chain settlement patterns for perp markets.
Prediction Markets
Incentive design and UX for information aggregation.
Intent-Based Trading
Private execution and solver networks — see TrunkGuard.
Updated monthly
Exploring how constant-product curves, concentrated liquidity, and hook-based customization change LP economics and trader behavior.
Full article coming soon
When static swap fees fail: volatility-responsive fees, flow-based adjustments, and the tradeoff between LP revenue and trader retention.
Full article coming soon
Loss-versus-rebalancing as a framework for understanding why passive LPs lose to informed flow—and what protocol design can do about it.
Full article coming soon
Lessons from building multi-chain DeFi UIs: keystore wallets, non-EVM auth, and making unfamiliar runtimes feel familiar.
Full article coming soon
Chainlink vs. TWAP vs. custom feeds—latency, manipulation resistance, and when each fits a protocol's risk model.
Full article coming soon
Every build — what was hard, what I shipped, and why it mattered.
Cross-chain yield optimization
Challenge
Cross-chain yield logic is opaque—users can't track balances, APY, or portfolio health across Bitcoin, Monero, and Ethereum.
Solution
Built Earn dashboard with subgraph-indexed events, multi-chain balance fetching with fallback RPCs, deposit/withdraw flows, and Account Abstraction for gasless onboarding.
Impact
Abstracted complex yield mechanics into a single interface protocol teams can ship inside Safe App.
Serai L1 cross-chain DEX
Challenge
Serai's non-EVM runtime makes cross-chain swaps between BTC, XMR, and ETH inaccessible to users accustomed to EVM wallet UX.
Solution
Built multi-chain trading UI with keystore wallets, RainbowKit, custom non-EVM authentication, and ShadCN components aligned to the design system.
Impact
Enabled users to interact with complex chain logic through familiar swap interfaces.
Private Uniswap v4 hook
Challenge
On-chain swaps leak intent and expose users to MEV on public mempools.
Solution
Built Uniswap v4 hook validating encrypted orders and recording encrypted outputs using Fhenix CoFHE.
Impact
Demonstrated private, intent-based swap architecture as Atrium Academy capstone.
Uniswap V2 fork on Arbitrum
Challenge
Bootstrapping a functional DEX prototype required wiring swaps, liquidity, and price feeds without overwhelming new users.
Solution
Forked Uniswap V2, built responsive Next.js frontend with Ethers.js, RainbowKit, Chainlink oracles, and Zustand state.
Impact
Shipped a working testnet DEX demonstrating end-to-end DeFi UX from wallet connect to swap confirmation.
Token staking dApp
Challenge
Staking flows often hide reward mechanics behind confusing transaction steps.
Solution
Designed step-by-step staking UI with real-time balance updates and Ethers.js contract integration.
Impact
Reduced friction for first-time stakers with a guided, visual staking experience.
Real-time collaborative drawing
Challenge
Real-time drawing apps lose work on disconnect and struggle with multi-user sync.
Solution
Built Express + Socket.io backend with Redux state, autosave, and persistent sessions.
Impact
Enabled seamless multi-user sketching with zero lost work on refresh.
Music streaming platform
Challenge
Independent artists need a platform that handles auth, storage, streaming, and payments in one place.
Solution
Integrated Supabase auth, PostgreSQL, file uploads, and Stripe premium subscriptions in a Next.js app.
Impact
Delivered end-to-end music platform from upload to paid streaming.
Hiring, protocol work, or research — let's talk.
Prefer email? sammed2110@gmail.com · or book a call