Hello, I am
Yashvardhan
Blockchain Engineer
Smart Contract Developer (Solidity/Go) specializing in DLT & Distributed Systems. Building secure, production-grade dApps, scaling backends, and managing $30M+ in on-chain assets.
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Professional Experience
Blockchain Developer
Kratos Gamer Network
Apr 2025 – Jan 2026
- Built dApp services using Solidity and Go, evaluating Hyperledger Besu as a permissioned DLT alternative.
- Designed ERC-721 NFT contracts for luxury asset tokenization, increasing platform engagement by 50%.
- Applied cryptographic key management and digital signature verification (ECDSA) for secure wallet transactions.
- Containerized blockchain services with Docker and built CI/CD pipelines (GitHub Actions).
Blockchain Developer
MaxelPay
Apr 2024 – Apr 2025
- Developed ERC-20 payment gateway smart contracts in Solidity for P2P settlement, escrow, and token swaps.
- Built backend REST APIs using Node.js, MongoDB, and Kafka for asynchronous event streaming.
- Applied cryptography fundamentals to secure fiat-to-crypto flows and protect wallet credentials.
- Integrated smart contracts with Infura/Alchemy and ethers.js; deployed via Docker.
Blockchain Lead
Antier Solutions
Apr 2022 – Apr 2024
- Authored multi-transaction staking contracts managing $10M+ in ERC-20 token stakes.
- Developed cross-chain swap modules across Ethereum, Polygon, BSC, and NEAR.
- Built automated smart contract test suites (Foundry + Hardhat) achieving 40% execution cost reduction.
- Integrated Golang/TypeScript backend services following software architecture best practices.
Head of Engineering (Blockchain)
Colledger Protocol
Jan 2021 – Apr 2022
- Architected a DeFi lending protocol on Ethereum/Polygon with token lifecycle management.
- Built compliance-enabled contracts with investor whitelisting using Soulbound Tokens.
- Led cross-functional engineering team, defining architecture and backend API integration.
Technical Arsenal
Blockchain / DLT
Solidity5 yrs
Go3 yrs
Ethereum4 yrs
Smart Contracts5 yrs
Cryptography
Hashing & Encryption4 yrs
ECDSA3 yrs
Key Management4 yrs
Backend & APIs
Node.js / Nest.js4 yrs
Ethers.js4 yrs
Kafka2 yrs
DevOps & Cloud
Docker4 yrs
CI/CD Pipelines3 yrs
AWS architecture3 yrs
Tools & Testing
Hardhat / Foundry4 yrs
OpenZeppelin4 yrs
Fuzz Testing2 yrs
Languages
TypeScript4 yrs
JavaScript5 yrs
Rust3 yrs
Key Achievements
$0M+
Assets Managed
$0M+
Staking Contracts
0%
Gas Reduction
0+
Merchants Served
0+
Users Served