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david_devpro

David V

@david_devpro

Mobile App Bug Fixing and Performance Optimization Expert

Vereinigte Staaten
Englisch, Deutsch, Italienisch, Französisch
Einige Informationen werden in englischer Sprache angezeigt.
Über mich
Greetings I am David Virgil. My obsession with mobile app development started years ago when a battery drain bug almost ruined a major launch. Since then I have dedicated my career to mastering app optimization. With over seven years of experience I specialize in fixing app crashes lag UI bugs payments push notifications APIs and store rejections. I ensure deep links analytics offline modes and SSL certs work perfectly. Whether fixing slow DBs Bluetooth sensors or IAP issues I deliver seamless onboarding and flawless performance. Let us make your mobile app completely perfect today.... Mehr lesen

Kompetenzen

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david_devpro
David V
offline • 
Durchschnittliche Antwortzeit: 1 Stunde

Meine Dienstleistungen

Behebung von Bugs in mobilen Apps
I will fix app crashes, lag, iap, push, sync, auth, apis, battery, and store rejections
Ab25 $ / ProjektWeitere Details

Arbeitserfahrung

Fiverr

Lead Mobile App Debugger

Fiverr • Freiberufler

Mar 2022 - Present • 4 yrs 6 mos

Solved complex app crashes, resolved store rejections, optimized battery performance, and fixed UI bugs for hundreds of mobile apps. Focused on delivering high-quality performance tuning and ensuring seamless user experiences across various mobile platforms.

Kwork

App Migration Consultant

Kwork • Freiberufler

Sep 2021 - Present • 5 yrs

Successfully migrated legacy applications, fixed deprecated APIs, resolved OS compatibility issues, and improved app size to prevent store downtime. Ensured that applications remained functional and compliant with the latest mobile operating system standards.

Upwork

Senior Performance Engineer

Upwork • Freiberufler

Jan 2020 - Feb 2022 • 2 yrs 1 mo

Eliminated lag, synchronized offline databases, optimized API calls, and managed deep links for high traffic enterprise mobile applications. Specialized in enhancing the responsiveness and data integrity of complex mobile systems under heavy load.