Pavel Usov

• Built native iOS application with SwiftUI featuring Bluetooth Low Energy integration, real-time elevator status monitoring • Developed real-time status synchronization between mobile clients and elevator control systems using WebSockets and RESTful APIs • Implemented backend service using Swift Vapor framework including user management, elevator group control, WebSocket broadcasting for live status updates, and secure SMS-based registration • Created comprehensive API ecosystem supporting user registration, authentication, elevator commands, and building management with proper security implementation

The company is one of the leading producers of after-market electronics for car’s security and telematics as well as home automation solutions. • Consolidated two standalone apps (backend-based and Bluetooth-based device communication) into a single unified “super app” leveraging modular architecture to meet tight deadlines and ensuring a seamless user transition. • Designed and implemented background location updates for sharing it with telematics devices over BLE, providing users with lower segment products to use features available only in higher segment products. • Modularized large-scale iOS applications, significantly improving build performance, maintainability, and development efficiency. • Set up CI/CD workflows using Xcode Cloud, resulting in faster deployment times and improved quality. • Mentored less senior developers providing smoother onboarding and skills development • Introduced code review and pair programming practices to the team rituals, improving code quality and knowledge sharing • Designed local first architecture for instant messaging app ensuring consistency and speed of real-time message delivery.

Maintained iOS applications in one of Russia’s leading car and home automation/security service providers, ensuring stability and seamless user experience. • Improved user satisfaction and App Store ratings by increasing the crash-free rate from 93.7% to 99.9% through targeted debugging and crash analytics monitoring. • Designed and shipped a reusable BLE communication SDK adopted across multiple teams and projects. • Delivered real-time video streaming from in-car CCTV to the mobile app, closely collaborating with backend and hardware team, meeting tight deadlines and complex hardware integration requirements. • Implemented a robust CI/CD pipeline using Fastlane and TeamCity, significantly accelerating delivery speed and reducing manual release errors.

• As solo iOS developer delivered 3 iOS apps from idea to App Store including one watchOS app. • While working on iOS apps, extensively participated in designing backend APIs (REST, WebSocket) • Closely collaborated with designers to bring better UX and pixel perfect UI to consumers. • Designed custom Bluetooth LE profile for bi-directional communication with car's security systems.