Senior Front-end Developer with over 6 years of experience and deep end-to-end ownership of web products across Web3, education, construction analytics, fintech, automotive, and enterprise systems. I specialize in building high-performance, user-friendly, and secure applications with a strong emphasis on maintainable architecture and measurable business outcomes.

I combine engineering rigor with product thinking: I align technical choices with business strategy, advocate for long-term maintainable approaches, and keep teams aligned on trade-offs. I have shipped multiple products from scratch, migrated legacy platforms to modern standards, led team-level quality discussions, and consistently deliver with a focus on accessibility, test coverage, and developer experience.

Main stack used daily.

• Languages: HTML, CSS, JavaScript, TypeScript, Node.js
• Frameworks: React, Next.js, Angular
• Node.js Ecosystem: Express.js, NestJS

Technologies often used in production workflows.

• AI-Driven Development: Cursor AI
• Styling: TailwindCSS, linaria
• Testing: Jest, Cypress, Vitest, Playwright
• State & Data: Zustand, Redux, React Query, Apollo GraphQL
• Forms: React Hook Form, Zod
• Cloud & Infrastructure: Vite, Vercel, Turbopack, Webpack
• CI/CD: GitHub Workspaces, GitLab Pipelines
• Web3: wagmi, viem, ethers, solana/web3
• Databases & Cache: PostgreSQL, MongoDB, Redis
• ORM: Prisma, TypeORM
• Internationalization: i18n

Proven in real-world, long-running products.

• Monorepos: pnpm workspaces, Lerna
• UI Kits: MUI, Antd, Radix, Chakra, shadcn
• Realtime: WebSockets, Socket.io
• Component Docs: Storybook
• Analytics & Monitoring: Sentry, Mixpanel, Amplitude, Dune
• Visualization: Recharts, Chart.js, Cesium (3D Maps)
• Accessibility: Siteimprove, NVDA
• AWS Services: S3, SES, SQS, Lambda

Worked with in selected projects.

• Architecture: Microfrontends, FSD
• PWA: Service Workers
• Graphics: WebGL, Unity
• State management: Redux
• Monorepos: NX
• Frameworks: Svelte, Vue.js, TanStack Start, Astro
• Web3: Solidity

TypeScript JavaScript (ES6+) HTML5 CSS3/SCSS React Next.js Angular Svelte

Node.js NestJS Serverless (AWS Lambda) MongoDB PostgreSQL Prisma Redis IndexedDB (PWA) CI/CD Docker AWS (SES, SQS)

Wagmi Viem Ethers.js Solana/web3.js Reown Unity (WebGL integration) Cesium (3D Maps) Recharts Chart.js

Cursor AI Codex Prompt Engineering

• Belarusian State University -- Bachelor's degree, Mechanical Engineering (Sep 2019 - Jun 2023)

• Skillbox -- Team Lead (May 2022 - Oct 2022)

• English: B2

• Russian: Native

• Email: niko.tolstik@gmail.com
• Website: nikita-tolstik.pro
• LinkedIn: linkedin.com/in/ntolstik
• GitHub: github.com/nik-tolstik
• Telegram: t.me/nikita_tolstik