shubhangi
Blockchain Engineer | Solidity Dev
- Blockchain Developer with 7+ years of software engineering experience, including 4+ years specializing in blockchain technologies. Expert in smart contract development using Solidity, with deep knowledge of ERC-20, ERC-721, ERC-1155, ERC-4626, and ERC-7540 standards.
- Proven track record in DeFi, NFT platforms, wallet systems, and tokenized/async vault architectures. Skilled in JavaScript, Node.js, Python, TypeScript, with Web3 integrations.
- Hands-on experience with Foundry framework and tools like Tenderly, Infura, and testing frameworks like Mocha and Chai.
- Proficient in EVM, Ethereum L1/L2, and decentralized storage systems such as IPFS. •Backend and database experience with PostgreSQL and MongoDB.
- Strong debugging skills, clean code practices, and deep familiarity with blockchain documentation and standards.
Experience: 4 years
Yearly salary: $40,000
Hourly rate: $25
Nationality: 🇮🇳 India
Residency: 🇮🇳 India
Experience
Blockchain Engineer | Solidity Dev
Veris Labs 2024 - 2025
•Built and deployed modular DeFi systems for the MaxAPY Protocol using Solidity and Foundry, including ERC4626 vaults, yield strategies, and automated harvesting with fuzz testing. •Created an ERC7540-compliant MetaVault with Superform integration, supporting cross-chain yield aggregation, NFT-based positions, asynchronous withdrawals, and fee distribution. •Developed a LayerZero-powered cross-chain oracle (SharePriceOracle) with price validation, L2 sequencer checks, and secure access control. •Deployed SuperPositionsReceiver for MetaVault to enable secure cross-chain swaps via Bungee and recover ERC1155-based positions. •Developed a RESTful DeFi API for cross-chain token bridging using Node.js, Express.js, and ethers.js, handling contract interactions for multi-chain fund flows across major EVM networks with allowances, bridge calls, and transaction monitoring for automated token swaps and failed investment recovery. •Enabled vault upgradability by refactoring MetaVault into a MultiFacetProxy, preserving state integrity for future upgrades.
Full Stack Blockchain Developer
Safle 2023 - 2024
Played a key role in the research, design, and development of Safle Vault, a cutting-edge non-custodial smart wallet. Key contributions: •Led the development of ERC-4337 account abstraction, enhancing wallet functionality with smart contracts for entry points and bundlers. •Engineered secure private key management and seamless dApp integration across multiple chains. •Integrated compatibility with EVM (BSC, Polygon, Optimism, Arbitrum, Base) and non-EVM chains (Bitcoin, Solana, Tezos, Stellar) using @solana/web3.js and @stellar/stellar-sdk. •Implemented SegWit support for optimized transaction efficiency and network utilization. •Developed APIs for blockchain data extraction and processing, along with accurate gas estimation and fee calculations for both legacy and EIP-1559 transactions.
Software Developer
TCS 2021 - 2023
Project: Supply-chain Research and development •Developed a blockchain-based supply chain solution on Ethereum using Solidity. •Implemented product tracking and inventory management to improve transparency and efficiency.
Software Developer
TCS 2017 - 2021
Project: Athene: PRT – Pension Risk Transfer •Led Python API development for PII encryption. •Designed and automated ETL pipelines, reducing processing time by 40%. •Managed a 5-person team, driving sprint planning and project efficiency. •Implemented Control-M for automated job scheduling.
Skills
api
assembly
blockchain-engineer
cryptography
defi
erc-1155
erc-20
erc-4626
erc-721
javascript
mongo
nft
node
openzeppelin
postgres
python
smart-contract
tokenization
typescript
zero-knowledge
solidity
english