Daniil User

I’m a software engineer with 5+ years of experience specializing in high-performance web applications, with a focus on React, Vue, Nuxt, and TypeScript. I turn client needs into technical specs, and I’m deliberate about building scalable frontend architecture that supports continuous delivery. I’ve led frontend team initiatives end-to-end—coordinating tasks, running technical interviews, and owning code reviews while establishing engineering standards that elevate code quality. In my most recent work, I owned the full feature lifecycle from requirements to production, optimizing proposed solutions to reduce development time by 30–50%. Performance and complex data visualization are core to how I build. I drove a Lighthouse improvement from 70 to 95, redesigned rendering with SSR/SSG plus caching to cut page load time by 75% (2s to 500ms), and engineered a high-performance data processing layer for interactive charts—reducing rendering time by 5x and enabling real-time visualization on mobile. I also care about sustainable velocity. I pioneered an AI-enhanced workflow using Claude Code and GitHub Copilot, accelerating development by 50% through faster scaffolding, refactoring, and prototyping—while maintaining rigorous code review and testing standards. I’ve shipped production systems, including a sports application and a cross-platform mobile build with Capacitor that delivered a 60% cost reduction.