Solidity Developer

Senior Blockchain Engineer

Innovative and results-driven Blockchain Engineer with 10+ years of experience, specializing in zk-Rollups, Layer 2 scaling, cross-chain interoperability, and smart contract development. Adept at designing and implementing blockchain solutions across both protocol and application layers, with a strong emphasis on security, scalability, reliability, and performance. Proven expertise in Web3 development, NFT marketplaces, DeFi/Dex protocols, tokenomics, token bridges, and DAOs, utilizing industry-leading frameworks such as Truffle, Hardhat, and Foundry. Passionate about decentralized technology and continuously pushing the boundaries of blockchain innovation through research-driven solutions and hands-on problem-solving.


Experience: 5 years

Yearly salary: $102,000

Hourly rate: $40

Residency: 🇨🇦 Canada


Experience

Senior Blockchain Engineer | Lead Engineer
Onchain.VC
2023 - 2025
Mentored and guided a team of junior developers in Solidity, Golang, and decentralized application development, fostering a 40% improvement in code quality and delivery speed. Designed and deployed transactional Solidity smart contracts on Ethereum, creating an ERC20 token used as in-world currency, enabling users to buy and sell goods in a virtual marketplace. Led the development of an exchange platform and DEX using ReactJS, increasing transaction efficiency and enhancing user engagement. Architected scalable blockchain infrastructure for Layer 2 solutions using the Cosmos SDK and Comet BFT, improving transaction throughput by 60% and reducing inconsistencies by 20%. Designed oracles and cross-chain communication layers optimizing data reliability and reducing gas costs. Built custom Web3 front-end solutions using React.js, Next.js and Typescript, integrating with blockchain networks via Web3.js and Ethers.js. Worked directly with clients and stakeholders, translating business requirements into technical blockchain solutions. Implemented the Hyperledger Fabric blockchain network for tamper-proof Auditing and auto billing platform from scratch.
Senior Blockchain Fullstack Engineer
Ocada AI
2021 - 2023
Designed and implemented various kinds of Ethereum token standards such as ERC20, ERC721 and ERC1155. Gained proficiency in platforms like Ethereum, Hyperledger and Layer 2 solutions such as Optimistic and ZK-rollup. Integrated Ethereum, Solana and Cosmos SDK into client projects ensuring seamless multi-chain interactions. Developed an event-driven architecture leveraging Kafka, Node.js, Web3.js and Ethers.js for the implementation of an RWA tokenization project. Integrated the Uniswap protocol into the Energyverse project, enhancing token swap functionality and significantly improving the user experience for over 5,000 platform users. Contributed to the development of Frontend and Backend applications, integrating Web3 and third-party services using React.js, Node.js, Express.js, Apollo, GraphQL, Subgraph, Web3.js, Ethers.js and MongoDB. Implemented unit testing, integration testing, and fuzz testing utilizing Hardhat, Foundry, Chai, Jest and Echidna, achieving over 90% code coverage.
Blockchain Developer
TaikoLabs
2019 - 2021
Contributed to the development of smart contracts and backend applications for 10+ projects, including Token Bridge, NFT Marketplace and Tokenomics, utilizing technologies such as Solidity, Golang, Rust, Python, Node.js and Express.js. Worked with blockchain technologies, including Ethereum, Solana, and Cosmos SDK, to develop decentralized applications (dApps) and integrate smart contracts. Integrated Web3 technologies into dApps, enabling smart contract interactions on Ethereum, Solana, and other blockchain platforms for decentralized finance (DeFi) applications. Participated in the development of Multichain Rewarding Platform on EVM chains, Solana and Aptos and developed account abstraction wallets utilizing Solidity, earning positive feedback from over 100,000 users.
Fullstack Engineer
Intelliware Development
2017 - 2019
Designed and developed over 10 full-stack solutions that solved 70% of use cases from embedded devices, and web UI to backend and database including all the industries such as Fintech, Healthcare, SaaS, E-commerce and Real Estate. Developed a scalable and resilient microservice architecture to enhance the functionality and reliability of the payment system. Implemented a server-less architecture in AWS to host applications, reducing the deployment time by 40%. Integrated automated testing in the development process using Jest for unit testing, improving bug detection by 80%. Owned critical back-end code bases and leveraged test-driven development (TDD) to build Go based cryptography libraries.
Fullstack Developer
Digi117
2013 - 2017
Developed over 5 projects, including a Healthcare SaaS Platform and an E-commerce platform, utilizing JavaScript/TypeScript frameworks such as React.js, Vue.js, Node.js and Express.js. Developed a scalable and resilient microservice architecture to enhance the functionality and reliability of the payment system. Developed and deployed CI/CD pipelines utilizing GitHub Actions, Docker, and AWS CodePipeline, achieving a 40% reduction in deployment time and doubling release frequency from monthly to bi-weekly.

Skills

blockchain-engineer
full-stack
java
javascript
nextjs
node
react
rust
solidity
typescript
english