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Ketan Kulkarni
Ketan Kulkarni

Senior Blockchain Engineer

Open to offers · Member since 1 Oct 2026
Message
Location
India
Desired salary
Unspecified
Work preference
Remote Only / Full Time
Experience level
Senior

About

Professional summary

I am a Blockchain Engineer with more than five years of experience building secure, scalable smart contracts, DeFi protocols, Web3 applications, and blockchain infrastructure. My core expertise is Solidity development across token standards, staking, ICOs, launchpads, DEXs, CEX integrations, NFTs, and cross-chain systems.

I have designed and deployed production EVM-compatible Layer-1 chains using Cosmos SDK and Cosmos/EVM, covering the full lifecycle from devnet and testnet through mainnet. My protocol work includes validator economics, governance, staking, unbonding logic, node migrations, and permissioned blockchain architectures.

I specialize in secure and efficient DeFi engineering, including AMM design, concentrated liquidity management, token vesting, cross-chain swaps, arbitrage systems, and upgradeable smart contracts. I focus on gas optimization, robust access controls, safe upgrade patterns, and reliable transaction execution.

I also work across the full stack, developing TypeScript and Node.js backend services, blockchain indexing APIs, and React-based Web3 interfaces. I have implemented wallet integrations, real-time dashboards, transaction state management, and multi-chain connectivity for EVM and TRON ecosystems.

Security is a central part of my engineering approach. I conduct pre-deployment smart contract reviews, create reproduction test suites, identify vulnerabilities in value handling and slippage logic, and deliver practical remediation patterns. My work has supported high-uptime systems, secure migrations of more than $1M TVL, and zero-loss production deployments.

Skills

32 capabilities
ArbitrageBackend DevelopmentBlockchain DevelopmentCometBFTCosmos SDKDeFiEnd To End TestingERC 1155EthereumFrontend DevelopmentGoGo EthereumGovernanceHD WalletsJavaScriptJSON RPCMongoDBNext.jsPolygonReactRole Based Access ControlRPCSoliditySQLStakingStatic AnalysisTendermintTokenomicsTronTypeScriptWalletConnectWeb3

Tech stack & tools

Working toolkit

Data Stores

MongoDB

Development

GitHardhat

Languages & Frameworks

ReactRemix

Experience

Career history

Blockchain Engineer MTransform

I designed and built a stateless batch-execution contract that replaced a third-party aggregator fee mechanism with a custom fee structure. The solution consolidated multi-step flows into a single EIP-712 signature bound to Permit2 witness data, using Solidity 0.8.34, Hardhat v3, OpenZeppelin 5.3.0, and CREATE2 for deterministic cross-chain addresses.

I built a UUPS-upgradeable concentrated-liquidity position manager for a Uniswap V3 pool, supported by an off-chain rebalancer bot, role-gated funding and withdrawals, slippage and tick-width safety controls, and emergency exit paths. I also led pre-deployment security reviews, developed reproduction tests and remediation patterns, architected a multi-wallet EVM and TRON connection layer, and delivered React and TypeScript DEX trading interfaces.

Senior Blockchain Developer | Full-Stack EspSofttech Pvt. Ltd

I led the INFI Multichain LaunchPad and CDEX project, designing and deploying Solidity contracts for token presales, ICOs, staking, vesting, DEX swaps, and launchpad logic. I also implemented custom AMM and arbitrage mechanisms to align on-chain prices with external markets and improve liquidity efficiency.

I architected and launched an EVM-compatible Layer-1 chain by forking Cosmos/EVM and delivering devnet, testnet, and mainnet environments. I designed a permissioned Cosmos blockchain with NFT-based validator authorization, owned technical decision-making and client communication, and developed Node.js backend services and React frontend integrations for blockchain APIs, wallet connections, dashboards, and transaction workflows.

Blockchain Developer Knowbility Solutions

I developed a web-based token minting and staking application for K Coin.

I also built a medicine supply-chain management application focused on detecting counterfeit products through blockchain-based tracking.

Blockchain Developer / Business Analyst Solulab

I designed and developed ERC-721 NFT smart contracts with royalty distribution for the Toekenz Marketplace. The marketplace supported minting, listings, secondary sales, and automated royalty payouts for a family-focused, child-safe multichain NFT platform.

I implemented a multichain deployment architecture across Ethereum and Binance Smart Chain, integrated wallet connection flows with parental-control restrictions, and designed backend APIs for NFT metadata tracking, marketplace order management, and role-based access control.

Education

Learning history

G.H. Raisoni College of Engineering

Bachelor's, Electronics and Telecommunications

Bachelor's degree in Electronics and Telecommunications.

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