Senior Frontend Developer

Sergei Vinogorov

React · TypeScript · Frontend architecture · FinTech

About me

I am a Senior Frontend Developer with 7+ years of experience building product-focused web applications with React and TypeScript. I currently work in FinTech, where I lead a small frontend team developing investment products and improving architecture, delivery workflows, and product quality.

My main interests are modular frontend architecture, GraphQL, performance, testing, browser internals, and turning changing product requirements into maintainable systems. I also build independent tools, including Applied Vacancies Tracker, and contribute to open-source projects when I can.

Core skills

JavaScript
TypeScript
React
GraphQL
Apollo Client
Redux
Zustand
Node.js
WebSockets
Micro Frontends
Modular Architecture
Design Systems
Performance Optimization
Accessibility (WCAG)
Jest
React Testing Library
MSW
Webpack
Vite
Chrome Extensions
CI/CD

Selected projects

All projects →

Independent product

interview-guard

A CLI that checks a take-home coding assessment repo for supply-chain scam patterns — malicious postinstall scripts, dependency confusion, typosquats — before you clone, install, or run anything a recruiter sent you.

Node.js
CLI
Security
Open Source
Developer Tools

Read case study →

Independent product

Applied Vacancies Tracker

A local-first Chrome extension for tracking job applications without spreadsheets, with status workflows, duplicate detection, on-demand page detection, migrations, and privacy-focused data controls.

React
TypeScript
Chrome Extension
Local-first
Product Engineering