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john spiff
@johnspiff2083
App and Web Developer, Play Store and App Store Publishing
Nigeria
English, Spanish, German
About me
Hi, I'm Spiff, a software engineer with 5+ years of experience in mobile app development and publishing. I specialize in native Android development using Java and Kotlin, cross-platform apps with Flutter, and full iOS publishing including App Store Connect, TestFlight, rejection fixes, and In-App Purchases — all Apple compliant.
Whether you need an app built or published on Google Play or the App Store, I deliver clean work and clear communication tailored to your needs. Let's build something great.
Skills
john spiff
Offline •
See my services
Mobile Store Management
I will publish and upload ios android app to app store and play store
Mobile Store Management
I will fix app rejection issues and publish ios or android apps
Work experience
Mobile App Developer
NectarBits • Freelance
Feb 2024 - Nov 2025 • 1 yr 9 mos
Developed and deployed native Android and cross-platform Flutter applications for clients across e-commerce, health, and logistics industries. Managed full project cycles from UI design to Google Play and App Store publishing.
iOS Publishing Specialist
App Empire • Freelance
Mar 2022 - May 2024 • 2 yrs 2 mos
Handled App Store Connect setup, TestFlight distribution, and In-App Purchase configuration for client apps. Resolved app rejections and ensured full Apple guideline compliance for faster approvals.
App & Web Developer
Self Employed • Freelance
Feb 2020 - Nov 2021 • 1 yr 9 mos
Delivered mobile apps and custom websites for startups, small businesses, and entrepreneurs globally. Services include Android and Flutter development, app store publishing, and responsive business website development using HTML and CSS.
