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Hayk Martirosyan

@haykmartirosyan

Senior Software Engineer at EPAM Armenia building enterprise web applications and improving frontend performance.

At EPAM Armenia, I design, develop, and maintain enterprise-scale web applications using React and TypeScript. I take complex features from requirements through deployment and post-release support, while contributing to technical design and solution architecture.

At Digitain Armenia, I developed browser-based games and a reusable UI component library, and improved game performance by 1.5–2× through rendering and animation optimizations. I’ve also led the Galaxsys frontend team, migrated a legacy React application to modern patterns at Twelve company, and contributed to a social networking platform for gamers at Owlfinity LLC.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

EPAM Armenia

Feb 2022 - Present (4 years 8 months)

Design, develop, and maintain enterprise-scale web applications using React and TypeScript. Provide technical guidance, mentor engineers, and drive engineering best practices.

React TypeScript JavaScript Claude Code Cursor GitHub Co Pilot ChatGpt Agile Code Review Technical Mentoring

Senior Software Engineer

Digitain Armenia

Mar 2020 - Mar 2022 (2 years)

Developed and maintained browser-based games using React, delivering engaging and high-performance user experiences. Designed and built a reusable UI component library adopted across multiple games.

React JavaScript TypeScript UI Component Library Performance Optimization Mentorship

Senior Software Engineer

Galaxsys (Digitain Group)

Jun 2020 - Apr 2021 (10 months)

Developed and maintained browser-based games using React, delivering engaging and high-performance user experiences. Led the frontend team, coordinating development efforts and driving technical decisions.

React JavaScript TypeScript UI Component Library Performance Optimization Team Leadership

Front End Developer

Twelve Company

Jun 2019 - Mar 2020 (9 months)

Developed and maintained modern web applications, including an e-commerce platform and a content management system. Led migration of a large legacy React application to functional components and modern patterns.

React JavaScript TypeScript State Management Refactoring Performance Optimization

Software Engineer

Owlfinity LLC

Feb 2018 - Jun 2019 (1 year 4 months)

Developed responsive web applications using React, Vue.js, and React Native. Built and maintained reusable UI components focusing on performance and cross-browser compatibility.

React Vue.Js React Native JavaScript Responsive Design UI Components

JavaScript Developer

Owlfinity LLC

Feb 2018 - Jun 2019 (1 year 4 months)

Developed responsive web applications using React, Vue.js, and React Native. Participated in the full development lifecycle from implementing designs to deploying production-ready features.

React Vue.Js React Native JavaScript Responsive Design