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Manul User

@manulparihar

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Smart Contract Engineer and founder specializing in DeFi protocols, ZK cryptography, and keyless wallets.

India

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What I'm looking for

I’m seeking a team building production-grade DeFi and privacy/scaling smart contracts—where I can design protocol architecture (Rust/Solidity), develop SDKs, and ship audited, test-backed systems with strong developer ownership.

I’m a Smart Contract Engineer and founder with 5+ years of blockchain experience, specializing in DeFi protocols, telecom decentralization, cross-chain integrations, and keyless smart contract wallets. I focus on production-ready systems—cryptography (ZKP), protocol architecture, and Rust-based execution.

I founded GMMS Labs to build Kokio, a mobile app enabling eSIM/data bundle purchases with fiat & crypto in 200+ countries. I developed audited smart contracts, built ERC-4337 biometric wallets with keyless signing, and shipped a TypeScript SDK, while also leading company direction and developer management.

I also worked on Blockswap Network’s LSD protocol, designing validator requirement reductions down to 0.001 ETH and enabling 1300+ ETH staked by users. Recognized and funded by the Ethereum Foundation (including a USD 240k+ collective grant), I’ve collaborated with EF’s PSE on privacy & scaling and designed a zk-CX prototype to reduce GSMA dependency.

Experience

Work history, roles, and key accomplishments

Current

Co-founder & Smart Contract Engineer

Current

GMMS Labs

Mar 2024 - Present (2 years 4 months)

Built Kokio (React Native) enabling global eSIM/data purchases in 200+ countries, and developed audited smart contracts and a TypeScript SDK. Implemented ERC-4337 biometric keyless signing and designed a ZKP-based decentralized telecom certificate exchange prototype.

Solidity TypeScript React Native Smart Contract Auditing Biometric Keyless Wallets Decentralized Telecom Certificate Exchange

Software Engineer – Smart Contracts

Blockswap Network

Dec 2021 - Jan 2024 (2 years 1 month)

Designed the LSD protocol to reduce validator requirements to 0.001 ETH and support 1300+ ETH staked by users. Built TypeScript SDKs, hosted subgraphs, and deployed production smart contracts while supporting integrations and debugging.

LSD Protocol Smart Contracts Subgraphs SDK Development

Blockchain Developer

Unido

May 2021 - Nov 2021 (6 months)

Worked on Solidity smart contracts for the UDO token lifecycle and developed a substrate-based private chain prototype. Created a Substrate-to-Ethereum bridge and supported frontend/mobile development tasks.

Solidity UDO Token Lifecycle Substrate Private Chain Prototype AngularJS Java

Software Engineer

GVOS.io

Oct 2020 - May 2021 (7 months)

Researched and deployed contracts on Ethereum, Flow, and Substrate (Rust), and built React Native mobile apps and ReactJS dApps. Designed a mobile key security system and created promo/motion videos using Blender.

Rust Substrate Ethereum Flow React Native ReactJS Mobile Security Blender Video Production Motion Design

JavaScript

Tab2QR

Jan 2021 - Apr 2021 (3 months)

Built a Chrome extension and mobile app to sync browser tabs between devices and create backups. Developed using a React Native + ReactJS stack.

JavaScript React Native ReactJS Chrome Extension development

Education

Degrees, certifications, and relevant coursework

IIIT Guwahati

Bachelor of Technology, Computer Science & Engineering

2018 - 2022

Pursued a B.Tech in Computer Science & Engineering at IIIT Guwahati from 2018 to 2022.

Coursera

Professional Certificate, Blockchain

2019 - 2020

Activities and societies: Coursework included Blockchain Platforms, Blockchain Specializations, Decentralised Applications (dApps), Smart Contracts, and Blockchain Basics.

Completed Coursera professional certifications covering Blockchain Platforms, Decentralised Applications (dApps), and Smart Contracts.