Results-driven Software Engineer with 7+ years of experience in Web3 and Web2 with developing and optimizing decentralized applications and smart contracts. Proficient in JavaScript, TypeScript, Python, Solidity, Rust, Vyper, C++, Golang, Web3, and Cosmos, React, Node.js/Express, Django/Flask with a proven track record of achieving impactful results in high-stakes environments. Adept at translating complex requirements into scalable solutions and delivering innovative blockchain technology solutions. Seeking to leverage expertise to drive forward-thinking projects and contribute to cutting-edge developments.
Experience: 7 years
Yearly salary: $60,000
Hourly rate: $30
Nationality: ðŸ‡ðŸ‡° Hong Kong
Residency: 🇵🇱 Poland
Experience
Lead Developer
XFAI 2023 - 2024
Led the development of a high-profile DeFi protocol on Ethereum, increasing transaction throughput by 40% and reducing gas costs by 25%. Designed and optimized smart contracts for Ethereum and Solana, ensuring efficient execution and security. Implemented advanced Web3 integrations, improving user experience and interaction with blockchain networks. Developed a Cosmos-based cross-chain communication module, enabling interoperability between Ethereum and Cosmos blockchains. Mentored junior developers and conducted workshops on best practices in blockchain development.
Blockchain Developer
Bounce Finance 2022 - 2023
Developed and launched a successful NFT marketplace on Solana, which achieved a user base of 50,000 within the first three months. Engineered smart contracts and decentralized applications, focusing on scalability and security. Conducted performance tuning and security audits of smart contracts, resulting in a 30% reduction in vulnerabilities. Collaborated with the product team to integrate Web3 functionalities into user-facing applications, enhancing overall application performance.
Full Stack Developer
Ecotrak Facility Management Software 2020 - 2022
Crafted visually stunning user interfaces by building custom UI libraries and tailored components using styled-components, automating the test cases which minimized the amount of time spent for test regression by 30%. Enhanced financial controls to improve the clinical, operational and financial performance of health organizations, shrinking the time spent for finance by 20%. Developed multiple web applications using Angular, resulting in a 20% increase in user adoption and a 15% reduction in support requests. Worked closely with the QA team to identify and resolve bugs, improving overall application stability by 25%. Implemented automated testing using Cypress, reducing testing time by 40%. Used Elasticsearch to create a custom search engine for a large e-commerce website, which improved the user experience and resulted in a 15% increase in conversion rates.
Software Engineer
Allbirds 2018 - 2020
Built a B2B/B2C system for individual customers and businesses to make transactions, enhancing user experience and productivity by 30%. Successfully implemented key functionalities such as Workflow and Timeline, and Team chat on channels, enhancing the overall user experience and productivity by 30%. Delivered visually appealing and mobile-responsive pages that drove a 25% increase in customer engagement. Constructed an onboarding website that ensured secure and safe transactions for customers, resulting in a 20% reduction in customer complaints.
Skills
cosmos
ethereum
full-stack
golang
rust
solana
solidity
front-end