⚛️ Nikita Chupin

Senior Frontend Developer @ Innotech

About

🔷 About Me Senior Frontend Developer with 5+ years of commercial experience building scalable, high-performance web applications in SaaS, FinTech, and Crypto with strong focus on clean architecture (FSD, Microfrontends), performance (Core Web Vitals, SEO) and testing strategy (unit/integration/e2e/ui). Led the migration of SPA to SSR (Next.js/Nuxt.js) for a major fintech company with 10M users annually. 🚀 My contribution • 49% faster page loads and +27% traffic after SSR/SSG adoption. • 34% reduction in Time-to-Interactive across markets. • 93%+ automated test coverage - fewer prod bugs, faster releases. • Team enablement: mentoring, review culture, and shared best practices. 💡 What I do I translate product goals into resilient, measurable frontend systems: clean boundaries, predictable data-flow, and observability by default. I partner tightly with design and product to ship user-centric features without sacrificing Core Web Vitals. 🧰 Tech I reach for TypeScript · React · Next.js (App Router, RSC, SSR/ISR) · Vue/Nuxt · Redux/RTK · Zustand · GraphQL (Apollo) · WebSockets Testing: Jest · React Testing Library · Cypress · Playwright · Visual Reg (Loki) Tooling/Quality: Vite/Webpack · CI/CD · Storybook · Sentry · Lighthouse/Core Web Vitals · FSD 🤝 Let’s connect Telegram: @front_end_chupin (https://t.me/front_end_chupin) E-mail: chupin.nick.dev@gmail.com Phone number: +995 557 51 67 72 (https://wa.me/+995557516772)

Country

Georgia

City

Tbilisi

Industry

Computer Software

Skill

React, Vue, TypeScript, Next.js, Nuxt.js, Web3, JavaScript, React.js, Linux, RESTful architecture, Front-End Development, Web Development, Python, Fullstack , CRUD, MaterialUI, Ant Design, ChakraUI, User-centered Design, Docker Products

Experience

Senior Frontend Developer

Innotech

2023-5 - Present · 3 yrs 5 mos

Tbilisi

• Developed HR CRM on Next.js (SSR) using Feature-Sliced Design (FSD), replacing an outdated PHP monolith, improving page load speed by 49%, and boosting SEO metrics. • Led the migration of Vue to Nuxt.js on landing projects. Using SSR and SSG, reduced time to interact (TTI) by 34% and improved Core Web Vitals metrics, which significantly improved search engine results. • Created a real-time dynamic pricing dashboard for managers (React + WebSockets), improving sales metrics. • Built a testing environment (Jest, React Testing Library, MSW, Cypress, Chromatic) with over 93% coverage, reducing the number of bugs and increasing the speed of their detection. • Introduced Sentry for error monitoring and performance tracking, reducing customer-reported issues. • Mentored 3 junior developers via code reviews, pair programming, and workshops, that raised consistency of modern Frontend practices. Technologies: TypeScript, React 18/19, Next.js (App Router, RSC, SSR/ISR), Vue 3, Nuxt.js 3, FSD, Microfrontends, SCSS Modules, Redux Toolkit, Zustand, Pinia, SWR, Jest, React Testing Library, Storybook, Loki, Playwright, Cypress, Sentry, Docker, CI/CD.

Frontend Developer

Nexpay

2021-10 - 2023-5 · 1 yr 8 mos

Тбилиси, Грузия

• Implemented an automatic notification system (WebSockets + GraphQL) for updating transaction status, which increased transparency for customers and made the interface as user-friendly as possible. • Optimized document processing using parallelism, reducing rendering time and allowing documents to load 3 times faster. • Spearheaded adoption of GraphQL (Apollo Client) to reduce over-fetching vs REST which increased the application's speed by 1.5 times. • Created a Style Guide for the team in Confluence, describing the application architecture, ESLint, StyleLint, and Prettier, which unified and accelerated teamwork. Technologies: TypeScript, React, Redux, Material UI, GraphQL (Apollo), WebSockets, styled-components, Jest, RTL.

Frontend Developer

BDC Consulting

2020-6 - 2021-10 · 1 yr 5 mos

Тбилиси, Грузия

• Created 3 crypto exchanges from scratch (React, Next.js, Nuxt.js, TypeScript, WEB3), increasing conversion by 59% through UX flow. • Built 2 payment forms with dynamic validation on WEB3, boosting partner conversion by 81%. • Reduced the bundle size of the cryptocurrency monitoring system by 33%, boosting Lighthouse performance from 50 to 86, which allowed us to outperform competitors in search results. • Introduced Storybook + Loki for visual regression testing, cutting UI bug reports by 17%. Technologies: JavaScript/TypeScript, React, Next.js, Nuxt.js, Redux Toolkit, WEB3.js, Wagmi, Ether.js Viem, WEB3.storage, Tailwind, SCSS Modules, Webpack, Vite, Rollup, AWS, Docker, k8s, Express.js, Node.js, Nest.js, PostgreSQL, Elasticsearch.