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Iliya User

@iliya

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Senior React Native Developer with 5+ years of cross-platform expertise.

South Korea

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What I'm looking for

Seeking a challenging role in a forward-thinking company that values innovation and cross-platform development. I aim to contribute to impactful projects that enhance user experiences and drive business growth.

I am a Senior React Native Developer with over five years of experience in delivering high-performance cross-platform mobile and web applications. My expertise spans finance, health, and e-commerce industries, where I've successfully launched five cross-platform apps, achieving over 1,000 downloads and a 4.6-star rating. I excel in optimization techniques like SSR and lazy loading, which improved performance by 40% during React to Next.js migrations.

In my role at Conun, I developed native modules for iOS and Android, mentored developers, and integrated blockchain APIs. I've also led teams to ensure seamless integration across platforms and enhanced code safety in open-source projects. My technical proficiency includes TypeScript, JavaScript, React.js, React Native, and blockchain integration.

Previously, at Entri and Descry, I built CMS systems, improved app performance, and developed responsive web applications. I'm passionate about clean code, Agile/Scrum, and delivering solutions that drive business value and user satisfaction across global markets.

Experience

Work history, roles, and key accomplishments

Current

Senior React Native Developer

Current

Conun

Jan 2023 - Jan 2025 (2 years)

As a Senior React Native Developer at Conun, I developed cross-platform mobile apps, achieving over 1,000 downloads and a 4.6-star rating. I integrated blockchain APIs, mentored developers, and improved transaction performance by 30%. My role involved architecting app design and enhancing user experience through real-time UIs.

React Native iOS Development Android Development Performance Optimization Code Review State Management UI Design Smart Contracts

Full Stack Developer

Entri

Jul 2022 - Sep 2022 (2 months)

At Entri, I built a CMS with NotionDB and Next.js, enhancing content management efficiency. I improved performance by 40% through SSR and lazy loading, and upgraded the Stripe payment component for real-time updates. My work ensured a smooth cross-device experience.

Next.js Stripe Web Development Performance Optimization Localization JavaScript HTML CSS

React Native Developer

Descry

Sep 2019 - Jul 2022 (2 years 10 months)

As a React Native Developer at Descry, I developed mental health applications, integrating Firebase for push notifications and enhancing user engagement. I modernized state management and improved deployment speeds using CI/CD practices, contributing to user-centric app development.

React Native Firebase CI CD State Management Mobile Development User Engagement WebView

Education

Degrees, certifications, and relevant coursework

IU University

Bachelor’s degree, Computer Science

Studied Computer Science, focusing on software development, algorithms, and data structures, which provided a strong foundation for a career in technology and mobile application development.