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iOS Developer with over 5 years of hands-on experience building high-performance, scalable applications. Proven track record of delivering complex features from concept to App Store with a focus on clean architecture, maintainable code, and performance optimization. Worked on an app with over 10 million users. Comfortable working in fast- paced teams, cross-functional environments, and taking ownership of product decisions. Focused on improving app stability, accelerating development, and enhancing user satisfaction through thoughtful engineering.…iOS Developer with over 5 years of hands-on experience building high-performance, scalable applications. Proven track record of delivering complex features from concept to App Store with a focus on clean architecture, maintainable code, and performance optimization. Worked on an app with over 10 million users. Comfortable working in fast- paced teams, cross-functional environments, and taking ownership of product decisions. Focused on improving app stability, accelerating development, and enhancing user satisfaction through thoughtful engineering.

Vladimir Klevtsov

App Developer, Web Developer, Back-End Developer, +2

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iOS Developer with over 5 years of hands-on experience building high-performance, scalable applications. Proven track record of delivering complex features from concept to App Store with a focus on clean architecture, maintainable code, and performance optimization. Worked on an app with over 10 million users. Comfortable working in fast- paced teams, cross-functional environments, and taking ownership of product decisions. Focused on improving app stability, accelerating development, and enhancing user satisfaction through thoughtful engineering.…iOS Developer with over 5 years of hands-on experience building high-performance, scalable applications. Proven track record of delivering complex features from concept to App Store with a focus on clean architecture, maintainable code, and performance optimization. Worked on an app with over 10 million users. Comfortable working in fast- paced teams, cross-functional environments, and taking ownership of product decisions. Focused on improving app stability, accelerating development, and enhancing user satisfaction through thoughtful engineering.

Available to hire

iOS Developer with over 5 years of hands-on experience building high-performance,
scalable applications. Proven track record of delivering complex features from concept to
App Store with a focus on clean architecture, maintainable code, and performance
optimization. Worked on an app with over 10 million users. Comfortable working in fast-
paced teams, cross-functional environments, and taking ownership of product decisions.
Focused on improving app stability, accelerating development, and enhancing user
satisfaction through thoughtful engineering.

Skills

Swift

MVP

Experience Level

Swift

Expert

MVP

Intermediate

Language

English

Advanced

Russian

Fluent

Work Experience

iOS Developer at K2Fintech

June 20, 2025 - Present

Designed and developed the architecture of a new iOS 17+ Super-App using SwiftUI, Combine, and Swift Currency. Developed and integrated native navigation on SwiftUI. Implemented security and privacy features ensuring data protection and user confidentiality. Integrated sending stickers and GIFs in chat. Developed financial transaction workflows and wallet features. Defined API requirements and coordinated implementation with backend engineers.

iOS Developer at Adamant Messenger

August 1, 2024 - June 20, 2025

Developed the iOS app for a secure cryptocurrency messenger platform. Updated and optimized the app's core for receiving and displaying cryptocurrency updates. Designed and implemented a high-precision navigation system for reading chats, saving scroll positions, and switching to specific messages via push notifications. Actively contributed to enhancing user experience by improving internal app logic and navigation efficiency. Reduced application login time by 30%.

iOS Developer at Avito

May 1, 2022 - July 1, 2024

Developed and maintained key modules of Avito Auto: listing filters, vehicle details screens, and image/video galleries. Implemented real-time status updates and notifications using Web Sockets and background fetch techniques. Collaborated with design and product teams to implement intuitive search and filter interfaces for enhanced user engagement. Refactored legacy UI Kit and storyboard-based screens to adopt SwiftUI components and modern Combine-based data binding, improving UI responsiveness and reducing code complexity.

iOS Developer

April 20, 2020 - March 20, 2022

Developed iOS modules for enterprise workflow apps, including purchase request tracking, document approval, and employee task management. Improved operational transparency for large corporate clients. Implemented offline-first architecture using Core Data and background tasks, enabling uninterrupted access to internal tools in low-connectivity industrial zones. Built and maintained a mobile education platform for teachers and students, featuring schedules, assignments, and push notifications for critical updates.