Open to opportunities

Yury User

@yuryuser

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Senior mobile engineer building reliable, high-performance iOS products through scalable architecture.

Spain

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What I'm looking for

I’m looking for a team where I can own mobile features end-to-end and help deliver reliable, high-performance products. I want strong engineering practices—modular architecture, CI/CD, and automated testing—and room to make technical decisions with cross-functional partners.

I’m a software engineer with 10+ years of experience building and scaling B2B and B2C mobile applications. I focus on delivering reliable, high-performance mobile products with strong emphasis on architecture, modularity, and long-term maintainability, owning product features end-to-end and driving technical decisions in complex environments. My toolkit centers on Swift and modern Swift Concurrency, backed by CI/CD pipelines and automated testing to keep releases stable.

In my current role as a Senior Mobile Engineer at Collana Solutions, I’ve owned end-to-end feature development across 3 iOS products, built an internal logging system to surface production data synchronization issues, and configured a Fastlane delivery pipeline to manage 14 project configurations while reducing release errors and speeding up delivery. Previously at Swiss1mobile, I owned an 8-year B2B iOS platform and delivered modular mobile capabilities that improved staff productivity by 30% and reduced paperwork by 95%, while also creating modular Swift Packages, migrating Objective-C to Swift (MVVM-C + Clean architecture), and improving synchronization and performance. Across both roles, I’ve optimized memory and application performance to reach a 99.9% crash-free rate, automated deployments via CI/CD with Fastlane and Azure DevOps, and used XCTest to cover key modules and prevent regressions.

Experience

Work history, roles, and key accomplishments

Current

Senior Mobile Engineer

Current

Collana Solutions

Aug 2025 - Present (11 months)

Owned end-to-end feature development across three iOS products and improved code quality by resolving critical bugs for stable, on-time releases. Built an internal logging system, configured Fastlane delivery for multiple project configurations, and refactored the codebase from Combine to Swift Concurrency.

Swift Combine Fastlane CI CD AI Coding Tools

Senior Mobile Engineer

Swiss1mobile

Jan 2021 - Aug 2025 (4 years 7 months)

Led migrations and architecture improvements, including converting legacy Objective-C apps to Swift with MVVM-C and Clean Architecture to improve scalability and maintainability. Optimized synchronization performance and memory usage, automated deployments via CI/CD (Fastlane and Azure DevOps), and added a Cordova barcode-scanning plugin with XCTest coverage for key modules.

Swift Objective C MVVM Clean Architecture Keyset Pagination Compressed Data Archives Performance Optimization Crash Reduction CI CD Fastlane Azure DevOps Cordova XCTest iOS

Mobile Engineer

Swiss1mobile

Jan 2017 - Jan 2020 (3 years)

Contributed to the development of a modular B2B iOS platform for customer management, field operations, document workflows, order processing, analytics, and reporting. Helped improve staff productivity and reduce paperwork through product delivery and ongoing enhancements.

Swift CI CD Fastlane Azure DevOps

Co-Founder, Software Engineer

Mobexs

Aug 2012 - Jun 2017 (4 years 10 months)

Co-founded a mobile development agency and scaled the engineering team from 3 to 15 through hiring and an internship program. Owned end-to-end iOS client app delivery, led cross-functional development for iOS and Android consumer apps, and contributed to business growth and a strategic merger.

iOS app development Android App Development Team Leadership Hiring Project Delivery Business Development

Mobile Software Engineer

iTechArt Group

Apr 2010 - Jul 2012 (2 years 3 months)

Developed iPhone and iPad games using the Cocos2D framework and shipped Lite and Pro versions on the App Store. Built an MVP of an Android Forex trading app in collaboration with other engineers.

app store Android App Development