Senior / Team Lead iOS Engineer

VPN App

About the Project

The project is a secure, cross-platform VPN solution designed to protect users’ online privacy and provide unrestricted internet access on iOS, Android, macOS, and Windows. The product targets a global audience, including users in highly regulated regions, with a strong focus on security, reliability, and performance. Core functionality includes encrypted connections using WireGuard and OpenVPN, kill switch, DNS leak protection, and seamless background reconnection. The solution is powered by a scalable backend responsible for authentication, server orchestration, and session management, ensuring low latency and high availability. Advanced traffic obfuscation techniques help bypass censorship and firewall restrictions.

• Networking

Responsibilities

- Led development for iOS/macOS platforms and coordinated with Android/Windows teams to ensure feature parity and architectural consistency; - Participated in roadmap planning, requirements analysis, and cross-functional collaboration with design and backend teams; - Estimated, prioritized, and distributed tasks in a Scrum environment; facilitated sprint planning and backlog grooming; - Designed secure VPN workflows using REST APIs and OAuth2; ensured compliance with App Store guidelines; - Developed CI/CD pipelines with GitLab and Fastlane to automate testing, deployment, and monitoring; - Guided developers on MVVM architecture, modularization, and concurrency best practices; - Conducted code reviews, enforced standards via SwiftLint.

Cloud-based file sharing

About the Project

The project is a cloud-based file sharing and storage solution that enables individuals and businesses to securely store, access, and share files from any device with an internet connection. The platform offers features such as file organization, custom permissions and access controls, and real-time collaboration. The solution is known for its robust security features, including 256-bit encryption, multi-factor authentication, and remote wipe capabilities. It is also compliant with various industry regulations, making it a suitable option for businesses that handle sensitive information.

• Information Services
• Cloud Computing

Responsibilities

- Code Development / Unit testing / UI Testing; - Requirements analysis and clarification; - Estimation, prioritization, and distribution of tasks; - Development scripts for CI/CD; - Product support and documentation maintenance; - Communicate with other teams, Third-party library support; - Code Review; - Investigation of difficult issue in app.

App for airport

About the Project

The app provides access to airport lounges worldwide, allowing users to search, view details and reviews, and book lounges via mobile. Its architecture includes a Swift front-end, Node.js back-end, and database for lounge and user data, integrating third-party APIs. As a Senior iOS Engineer, I implemented new features, fixed bugs, and improved performance, working on both UI and business logic, integrating APIs, and collaborating with designers and product managers to ensure the app met user needs.

• Travel
• Consumer Services

Responsibilities

- Code Development / Unit testing; - Requirements analysis and clarification; - Estimation, prioritization, and distribution of tasks; - Development scripts for CI/CD; - Product support and documentation maintenance; - Communicate with other teams, Third-party library support; - Code Review; - Conducting a project interview; - Investigation difficult issue in app; - Support android project.