Nikolai D.

Senior Full-Stack Engineer Node / Laravel / React / Next / Vue / Nuxt

Senior Full-Stack Engineer who builds products that scale 🚀 $300K+ earned · 107 jobs · 9,000+ hours on Upwork I’m a Senior Full-Stack Engineer ( Laravel / Vue / React / Nuxt / Next / Node) with 13+ years of production experience in fintech, Web3, crypto, SaaS, automotive, real estate, marketplaces and booking platforms. I help teams build fast, stable and scalable applications from architecture and APIs to polished UI and reliable infrastructure. I use Claude Code and AI-assisted workflows to deliver faster without cutting corners What I do best - Build high-load backends and scalable APIs (REST / GraphQL) - Create maintainable frontends with Vue 2/3, Nuxt, React, Next.js - State management: Pinia, Vuex, Zustand, Redux - Optimize performance (60s → 2s dashboards, ~1s page load) - Refactor legacy code into clean, modular systems - Integrate payments, crypto wallets and 3rd-party APIs - Deliver production-ready features without breaking things Testing & quality - Frontend testing: Vitest, Playwright - React ecosystem: Playwright, Jest and related tools - Backend testing: Pest, PHPUnit - I build systems that are testable, not fragile Scalability & DevOps - Scale Laravel applications with Docker, horizontal scaling, and queue workers. - Configure load balancers, horizontal scaling, queues and caching - AWS, DigitalOcean, Linux, CI/CD Experience that matters - Top Rated Plus & Expert-Vetted on Upwork (top 1%) - 100+ completed commercial projects - Real B2B & B2C systems under real traffic - Remote teams, Agile/Scrum, full ownership of features I care about business results, clean code and long-term maintainability. If you need a senior engineer you can trust with production - let’s talk 🤝