akaravitski

Worked as a Solidity Developer in various freelance and outsourced Web3 projects, focusing on DeFi, NFT, and DAO systems. Delivered production-ready smart contracts, participated in architecture planning, security reviews, and wrote comprehensive tests. - Helped clients raise a combined total of $1M+ in private/public rounds post-MVP delivery - Improved gas efficiency by ~20% in critical contract functions through optimization of storage and arithmetic operations. - Migrated and refactored legacy contracts from Solidity 0.6.x → 0.8.x, reducing codebase by ~30% via OpenZeppelin upgrades.

- Optimized code and eliminated memory leaks, reducing execution time and resource consumption by at least 30%. - Implemented Amazon S3 Select feature to optimize data processing, reducing service costs by approximately 20%. - Integrated caching mechanisms, reducing database load by 20% and improving response time. - Designed and built several cloud services from scratch with dynamic configuration capabilities. - Architected scalable and maintainable service infrastructures.

- Upgraded the company's product to a new version, ensuring an up-to-date codebase and reducing future development costs by an estimated $50,000 per year. - Significantly improved database query performance, reducing execution time by 72% and enhancing system responsiveness by 53%. - Collaborated with architects and stakeholders to successfully deliver PLM system on time and within budget.

- Designed and implemented efficient stored procedures and database structures, reducing query execution times and improving scalability. - Refactored legacy codebase, enhancing maintainability and reducing technical debt. - Investigated and resolved critical performance bottlenecks, improving response times and system reliability.

- Significantly improved database query performance, reducing execution time multiple times and enhancing system responsiveness. - Designed and implemented efficient stored procedures and database structures, reducing query execution times and improving scalability. - Refactored legacy codebase, enhancing maintainability and reducing technical debt.