Kingsley A.
iOS Software Engineer
iOS Software Engineer with over 9 years of commercial experience. Skilled in building applications from scratch to release, including award-winning apps. Special skill in finding and fixing bugs, eliminating bottlenecks, and providing the best solutions for particular cases — keeping your codebase healthy and efficient. Experienced in building and optimizing systems using AVFoundation and Metal frameworks. Experience in SDK development Skills: * Swift * SwiftUI, UIKit * AI Integrations: Text-to-Speech, Speech-to-Text, Text-to-Text, Text-to-Image * LiveKit * Core Location (GPS) * Combine * Core Data * AVFoundation * Metal * Mapbox, Google Maps, Apple Maps * SceneKit, RealityKit, Unity3D * RoomKit * Bitrise CI, Fastlane, TestFlight * Bluetooth, Beacons * Networking (REST, Sockets) * StoreKit, In-App Purchases, Subscriptions * Unit and UI Testing * Firebase (Analytics, Auth, Database, Dynamic Links, Notifications) * Familiar and ready to dive deeper into C++, Flutter, Unity3D, and OpenGL when needed
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $2.3k
Billed in all: $61,560$62k
$1.1k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 13% in Fastlane
Ranked by MRR among everyone on Upwork with the skill.
- SceneKit12 freelancers · 🇺🇦 #1Top 17%🇺🇦#1 of 4
- #4Metal26 freelancers · 🇺🇦 #1Top 15%🇺🇦#1 of 3
- #9Fastlane67 freelancers · 🇺🇦 #5Top 13%🇺🇦#5 of 14
- #27OpenGL163 freelancers · 🇺🇦 #3Top 17%🇺🇦#3 of 11
- #63Mapbox290 freelancers · 🇺🇦 #9Top 22%🇺🇦#9 of 22
- #75App Store302 freelancers · 🇺🇦 #9Top 25%🇺🇦#9 of 29
- #114UIKit818 freelancers · 🇺🇦 #39Top 14%🇺🇦#39 of 189
- #653Swift3,634 freelancers · 🇺🇦 #65Top 18%🇺🇦#65 of 314