Founder & Technical Lead

Valentyn Yefimov

Technical Lead / Frontend Architect

Location

Hungary, Budapest

Level

Staff

Experience

16 years

About

Valentyn connects frontend architecture to the product your business needs to deliver. A Staff Software Engineer with 16 years of experience, he is the Founder and Technical Lead at Leo·Source, combining architecture, web performance and full-stack delivery with technical leadership and mentoring. His toolkit spans React, Next.js, Angular, TypeScript and Node.js. Bring him into a product that needs clear technical direction, a stronger frontend foundation or guidance through architectural decisions, with the hands-on experience to carry those decisions into implementation.

Skills

• JavaScript
• TypeScript
• React
• Next.js
• Angular
• Node.js
• Frontend Architecture
• Web Performance