Hey 👋 I'm Andrew Zelenin

Developed mobile applications for premium car rentals in Dubai.

• Built mobile applications from scratch for both iOS and Android platforms within a tight deadline (1 month).
• Utilized modern project build tools and AI agents.
• Developed native modules for custom push notifications.
• Enhanced the application's UX.
• Improved performance for loading long lists, images, and data caching.

Participated in the founding of a company specializing in AI auditing of business operations.

• Applied the backend-for-frontend concept, improving application security.
• Redesigned data storage, making it more flexible and scalable.
• Leveraged open AI models, reducing server costs tenfold.

Worked on a project automating ACH banking transactions in the US, similar to PayPal.

• Optimized the component system, reducing the number of project files from 120 to 50.
• Developed an automated project build system, cutting mobile app release time from hours to minutes.
• Implemented deep linking in mobile applications, increasing app conversion by 50%.
• Created a design system for the personal account, simplifying the release of new features.

Participated in the founding of a closed online club system for bloggers, combining Instagram and Patreon features.

• Established a four-layer architecture, simplifying and accelerating feature releases.
• Implemented a new technology (Flutter), increasing Android app performance fivefold.
• Introduced secure personal data storage, reducing vulnerabilities in the mobile app.
• Developed a system to prevent media content theft.

Worked on a crypto (DeFi) project focused on derivative pools.

• Implemented automatic server API generation, reducing the time required for new feature deployment.
• Optimized the rendering logic for dynamic charts, significantly improving application load times.
• Introduced a logging system to track all critical bugs.

Participated in the founding of a human-centered insurance company with an innovative fraud filtering system.

• Launched the personal account project for 50,000 clients.
• Developed the mobile version of the personal account, attracting 10,000 new users.
• Mentored frontend developers.
• Ensured the seamless integration of frontend solutions from external contractors.

Worked on large banking and government projects (real estate).

• Integrated typing and testing, reducing the number of bugs by half.
• Played a key role in the development team for a design system used by 80+ frontend teams in a large-scale banking project.
• Contributed to the internal knowledge base for frontend developers.

Developed logistics solutions for Russian Railways, Moscow Transport, and industrial facilities.

• Implemented the BEM methodology, enabling interface reuse across multiple projects.
• Introduced a frontend (SPA) approach, tripling the speed of all client interfaces.
• Developed a high-performance monitoring system for industrial facilities based on efficient browser technologies.
• Contributed to the secure integration of web technologies into a monitoring system for thousands of ground transport units.