Aleksei Klimov

Senior product and full-stack engineer with 10+ years of experience building and launching data-intensive web, mobile, desktop, and backend products for international clients. Strongest in the TypeScript/JavaScript ecosystem: Node.js, React, React Native, PostgreSQL, Redis, and event-driven integrations. First engineer and technical lead on a fintech product taken from idea and architecture to production APIs, analytics dashboards, React Native applications, CI/CD, and App Store release. Comfortable working directly with founders, turning incomplete requirements into a delivery plan, making pragmatic architecture decisions, and owning a product after launch. Independent consulting record includes $100K+ billed across 13 contracts and 2,570 tracked hours. Particularly effective in early-stage fintech, SaaS, and data products that need hands-on end-to-end ownership.