Anton K.
Experienced iOS Developer
Background: 9+ years experience as an iOS developer 80+ works completed on Upwork 5000+ man-hours worked Team Lead, Product Owner, CTO - practical skills Area of expertise: - image and video processing apps (filters, transitions, templates, collages, patterns, audio, stickers, etc.); - audio processing apps (audio effects, sampling, generators, MIDI, OSC, etc.); - client-server apps (networking, serialization, caching, etc.). Stack: iOS, Xcode, Swift, Objective-C, UIKit, NSFoundation, AVFoundation, CoreText, OpenGL ES, GLSL, Metal, StoreKit, JSON, XML, CoreGraphics, CoreData, CoreVideo, CoreMedia, CoreAudio, CoreLocation, iCloud, Bash/sh, Git, Fastlane, Jira, Trello, Bitbucket, Github, In-app purchases, App Store. Ample knowledge of: - UI/UX design and development processes; - complex and large scale projects implementation; - support, updates and guarantee; - quality assurance and testing; - SDKs and APIs; - third-party integrations; - AppStore release process.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $6.1k
Billed in all: $416,843$417k
$3k in the last 6 months
Across 103 contracts
Earnings, last 30 days
Skill rankings: Top 8% in Objective-C
Ranked by MRR among everyone on Upwork with the skill.
- #5Cocoa Touch62 freelancers · 🇹🇭 #1Top 8%🇹🇭#1 of 1
- #71iPad App Development446 freelancers · 🇹🇭 #1Top 16%🇹🇭#1 of 1
- #77Apple Xcode881 freelancers · 🇹🇭 #2Top 9%🇹🇭#2 of 4
- #103Objective-C1,282 freelancers · 🇹🇭 #2Top 8%🇹🇭#2 of 3
- #122JSON1,293 freelancers · 🇹🇭 #1Top 9%🇹🇭#1 of 2
- #291GitHub2,823 freelancers · 🇹🇭 #1Top 10%🇹🇭#1 of 10
- #448Swift3,634 freelancers · 🇹🇭 #4Top 12%🇹🇭#4 of 10
- #498iOS3,908 freelancers · 🇹🇭 #4Top 13%🇹🇭#4 of 15