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I am a Senior Fullstack JavaScript Engineer with over 10 years of experience in delivering production-grade web applications at scale. I excel at both frontend and backend development, focusing on clean architecture and maintainable code. I am passionate about leveraging modern technologies and AI tools to enhance productivity and ensure code quality.…

Oleksii Yegupov

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I am a Senior Fullstack JavaScript Engineer with over 10 years of experience in delivering production-grade web applications at scale. I excel at both frontend and backend development, focusing on clean architecture and maintainable code. I am passionate about leveraging modern technologies and AI tools to enhance productivity and ensure code quality.…

Available to hire

I am a Senior Fullstack JavaScript Engineer with over 10 years of experience in delivering production-grade web applications at scale. I excel at both frontend and backend development, focusing on clean architecture and maintainable code. I am passionate about leveraging modern technologies and AI tools to enhance productivity and ensure code quality.

Skills

JavaScript

TypeScript

Node.js

Experience Level

JavaScript

Expert

TypeScript

Expert

Node.js

Expert

Language

Ukrainian

Fluent

English

Advanced

Work Experience

Senior FullStack Engineer & Frontend Architecture Mentor at WTT Solutions

April 1, 2022 - Present

Conduct technical interviews for JavaScript developers and help define engineering standards across multiple teams. Lead code reviews and support AI-assisted development workflows, improving team productivity by 30%. Designed and delivered growth plans for 8+ developers, resulting in 2 internal promotions.

Senior Javascript Developer at MyUnisoft

September 1, 2019 - January 1, 2022

Developed and maintained complex React components for MyUnisoft.fr, serving 10,000+ French commercial clients. Architected REST API structure and collaborated with backend teams to improve data flow and system performance.

Full-Stack JavaScript Developer at Individual Contract Projects

March 1, 2017 - August 1, 2019

Launched 4 major projects, including Getnexar.com, Tailwise.com, CryptoCalc, and Cactuo.com. Built complete web applications using React, Node.js, and modern build tooling.

Senior Full-Stack Developer at Dev-Pro

June 1, 2012 - December 1, 2016

Built and deployed click-to-chat widget systems for Alive5.com, supporting 100+ websites with 99.9% uptime. Developed desktop chat applications using Python, JavaScript, and Qt.