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I'm Evgeniy Ugryumov, a senior frontend engineer with 15+ years of experience building real-time, high-performance user interfaces for trading, fintech, gaming, and enterprise systems. I specialize in TypeScript, stream-based architectures, and performance-critical frontend applications with a focus on correctness, security, and long-term maintainability. I own frontend architecture decisions, collaborate closely with design teams, and strive to deliver modern, usable interfaces in complex domains.…I'm Evgeniy Ugryumov, a senior frontend engineer with 15+ years of experience building real-time, high-performance user interfaces for trading, fintech, gaming, and enterprise systems. I specialize in TypeScript, stream-based architectures, and performance-critical frontend applications with a focus on correctness, security, and long-term maintainability. I own frontend architecture decisions, collaborate closely with design teams, and strive to deliver modern, usable interfaces in complex domains.

Evgeniy Ugryumov

Front-End Developer, Web Developer, Full Stack Developer, +2

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I'm Evgeniy Ugryumov, a senior frontend engineer with 15+ years of experience building real-time, high-performance user interfaces for trading, fintech, gaming, and enterprise systems. I specialize in TypeScript, stream-based architectures, and performance-critical frontend applications with a focus on correctness, security, and long-term maintainability. I own frontend architecture decisions, collaborate closely with design teams, and strive to deliver modern, usable interfaces in complex domains.…I'm Evgeniy Ugryumov, a senior frontend engineer with 15+ years of experience building real-time, high-performance user interfaces for trading, fintech, gaming, and enterprise systems. I specialize in TypeScript, stream-based architectures, and performance-critical frontend applications with a focus on correctness, security, and long-term maintainability. I own frontend architecture decisions, collaborate closely with design teams, and strive to deliver modern, usable interfaces in complex domains.

Available to hire

I’m Evgeniy Ugryumov, a senior frontend engineer with 15+ years of experience building real-time, high-performance user interfaces for trading, fintech, gaming, and enterprise systems. I specialize in TypeScript, stream-based architectures, and performance-critical frontend applications with a focus on correctness, security, and long-term maintainability.

I own frontend architecture decisions, collaborate closely with design teams, and strive to deliver modern, usable interfaces in complex domains.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Russian

Fluent

Bulgarian

Fluent

Work Experience

Independent Frontend Consultant at RZUGA

September 1, 2023 - Present

Founded RZUGA and work B2B on crypto trading platforms and neo-banking products in regulated, security-sensitive environments. Design and build frontend systems using a simple, modern stack, prioritizing fast onboarding, maintainability, and predictable performance. Deliver trading, account management, and financial workflows using React, Next.js, and lightweight state management, with emphasis on secure defaults and clarity. Shape frontend architecture and development practices for growing teams.

Senior Frontend Engineer / Frontend Lead at Devexperts

September 1, 2018 - September 1, 2023

Built mission-critical frontend systems for trading platforms, wealth management, and insurance products; first frontend engineer in the Sofia office. Specialized in real-time data-driven UIs, using functional TypeScript with RxJS / Most.js to model complex, time-based state predictably. Delivered smooth, highly interactive trading interfaces under heavy data load, targeting 60 FPS. Maintained a high quality bar with automated tests and QA collaboration. Acted as frontend lead on architecture and mentoring.

Frontend Engineer at EGT Interactive

October 1, 2017 - August 1, 2018

Developed online casino games (slots, roulette, card games), integrating game logic, state management, and animation-heavy rendering. Implemented core gameplay systems while transforming assets into interactive, animated elements. Balanced visual fidelity with browser performance constraints for web-based and embedded platforms.

Senior Frontend Engineer (Enterprise FinTech Platform) at Taulia Inc.

September 1, 2014 - October 1, 2017

Joined the early Bulgarian team of a San Francisco FinTech startup, helping establish the Sofia office. Evolved a backend-rendered monolith into structured, long-lived frontend applications supporting invoicing, PDFs, and financial workflows. Primary frontend engineer locally, expanding automated test coverage in a security-sensitive environment.

Game UI Engineer (MOBA Game Client) at Crytek Black Sea

December 1, 2012 - August 1, 2014

Owned and built the game UI for a AAA PC MOBA title using a Chromium-based embedded web client on top of CryEngine. Designed the full pre-game experience: character selection, progression trees, lobbies, and chat. Architected a message-driven UI system and addressed memory leaks and rendering constraints to maintain near-60 FPS.

Senior Full-Stack Engineer at The Mags

August 1, 2008 - November 1, 2012

Grew from junior to senior engineer at a leading digital agency, delivering large portals, e-commerce systems, and interactive campaigns. Specialized in pixel-perfect frontend development under browser constraints (IE6–IE9).