• Leading a team of 4 frontend engineers in building and maintaining a high-performance Next.js web app with AI-powered features.• Collaborating with AI and Design teams to implement new features.• Acting as a Scrum Master, keeping everyone on task, gathering requirements for each task, facilitating communication between the CEO and the development team, managing sprints, and removing obstacles to progress.• Ensuring code quality and best practices through code reviews.• Mentoring a junior frontend engineer.• Led the transition from Redux to SWR which improved developer experience by simplifying network layer and work required to introduce new endpoints.• Had an iOS developer position for the first few months and developed SwiftUI-based iOS app with AI-powered features.

• Social network app for anime fans with AI (text-to-image) art generator.• Thanks to constantly delivering new features with steady speed, we accelerated user growth and prepared the iOS app for fundraising right on time.• Delivered new ideas that improved UX.• Worked on Next.js-based web frontend.

• Parental control apps for parents and their children.• Thanks to my stable performance and transparent approach to freelancing, I helped the team rewrite the old app in SwiftUI faster and release it on time.• I've implemented encryption and background tasks into the app.• Helped with UI and UX by suggesting new ideas.• Implemented several features from scratch without any UI designs prepared for me.

• Worked on the frontend for a crypto project: interacting with smart contracts, users’ connected wallets, collecting analytics, and talking to GraphQL.• Took a bit of a project manager role on myself by integrating Jira to our work and organizing the workflow of the frontend team.• Added analytics to the project which helped the team better understand our users and aid in our decision making.• Made our UI more user friendly by eliminating old visual bugs and improving UX.

• An app for trading and portfolio managing service that allows for buying, selling, and shorting stocks, monitoring the performance of the user's portfolio, and also contains a small CRM system.• It's a B2B SwiftUI-based app that I made on a freelance job while teaming up with other freelance devs working on this project.• It relies heavily on Combine (which means functional reactive programming on Swift), real-time updates of vast arrays of stocks data through Server-Sent Events.• Tech: Swift, SwiftUI, Combine, Server-Sent Events, API integration, UIKit parts integration, Push Notifications, Firebase Cloud Messaging.

• Made 9 VPN apps with different designs and features for my client, some of them are SwiftUI based• Extracted common code into an in-house framework that was used in every app.• Added custom animations, speed tester and IP checker.• Integrated Qonversion for analytics of In-App Subscriptions.• Tech: Swift, SwiftUI, UIKit, Combine, WebKit, Network Extension (NEVPNManager), In-App Subscriptions, SwiftyStoreKit, Qonversion, Speedchecker SDK.

• Made it easier for Overwatch fans to run a tournament by making a special tool that allows teams to decide which game maps to play (Tech: MySQL, Laravel, React, Node.js, socket.io).• Made it easier to get an invitation to Clubhouse (when it was invite-only) by making a service that ran an automatic queue and allowed sharing invites with each other (Tech: MySQL, Next.js, React, PayPal integration).

• Worked on a B2B city lighting system that powers several Russian cities.• Developed a React-based map wrapper for Mapbox that could show tens of thousands of city lights and sensors, updating their status in real-time and improving initial load times and overall performance compared to other open-source solutions.• Worked on a complex, responsive UI, including schedule management, user access management, notifications, device management, and device setup.

• Worked on all aspects of full-stack development: database design, API, website UI/UX, frontend (using React), while also providing tech support to our users.• Improved backend performance to receive data and synchronize the work of hundreds of exchange terminals stationed across Moscow.• Migrated a jQuery-based frontend to React to improve developer support and streamline the addition of new features.