Self-Employed / Freelance · Remote

• •Delivered custom SaaS and web applications for international clients across North America and Europe.
• •Marketplace Platform (E-commerce SaaS): Designed and developed with Next.js, Node.js, Express, MongoDB, and Stripe APIs; product catalogs, secure checkout, auth, order management; optimized DB queries and caching for performance.

ShareThis · California, United States · Remote

• •Contributed to data-driven marketing analytics platform used by thousands of websites.
• •AdInsight Analytics Platform: Built high-traffic dashboards (React, Next.js, Node.js, PostgreSQL, Redis) for 50k+ monthly users.

ITSpace · Lutsk, Ukraine · Remote

• •Agile team building web applications for international clients.
• •Client Portal Dashboard: Responsive UI with React, HTML5, CSS3; backend with Node.js, Express.js; PostgreSQL and MongoDB; reduced sprint bugs and improved stability.