Костянтин

KOSTIANTYN ANTONIUK
iOS Developer

CONTACTS
Ukraine
[відкрити контакти](див. вище в блоці «контактна інформація»), [відкрити контакти](див. вище в блоці «контактна інформація»)
LinkedIn: [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram: @kostindevelop

ABOUT ME
With over five years of experience in mobile development, I have built applications that significantly improved
user interaction — from marketing solutions for VARUS to innovative tools like TikMaker and SSSTik for TikTok. As
a team lead, I successfully launched OBank 2.0, delivering a secure and user-friendly banking experience.
My core expertise lies in Swift and SwiftUI, where I combine technical precision with a creative mindset to craft
high-quality mobile apps.
If you’re seeking a developer with a wide-ranging background and a track record of real results — I’m ready to
bring value to your team.

EXPERIENCE
Mobile iOS Engineer Jul 2021 - Present
Trigger
Development of FinTech applications, including a full-cycle implementation of a mobile banking app (OBank
2.0).
Maintenance of custom solutions and ongoing support of large-scale projects, ensuring stability, performance,
and timely updates.

Middle iOS Developer Oct 2020 - Sep 2021
System Technologies
Worked on the TIX project, a public transportation payment system, focusing on seamless and secure transaction
flows.
Also provided support and enhancements for various projects, including fuel purchase solutions for gas
stations and mobile banking applications.

Middle iOS Developer Apr 2020 - Sep 2020
Molfar.io
Worked on projects such as Ecorial and BeatBox Chatter, focusing on launching early-stage startups.
Gained valuable experience in SwiftUI development within a friendly and agile team environment.

Strong Junior/Pre Middle iOS Developer Nov 2018 - Apr 2020
"OOO Омега"
Developed the VARUS mobile application from scratch, tailored for the company’s clients and optimized for the
marketing department and loyalty program operations.
The app includes numerous financial and analytical integrations and supports a large active user base,
ensuring stability and performance under high load.
Junior iOS Developer Jul 2018 - Nov 2018
Unique Technologies LLC
The first project I was involved in was the support and redesign of the AgroYard iPad application.
I also worked on an IP telephony app, where I gained my first experience handling framework updates and
resolving project launch issues, which strengthened my problem-solving skills early on.

EDUCATION
Swift Apr 2018 - Aug 2018
IT School Spalah
Learning the Swift programming language

Trainee Objective-C Nov 2017 - Dec 2017
Company: VRG Soft
Free course at a company with the creation of a test project

Objective-C Sep 2017 - Oct 2017
IT School Hillel
Introduction to Objective-C

Basics of Programming; level UP Apr 2017 - Jun 2017
IT School
Completed training in a basic programming course in C++

Computer Graphics and Design Sep 2009 - Jun 2012
CA "Шаг"
Studied in fields such as design, programming, and computer systems administration.

Economic Cybernetics Sep 2007 - Jun 2011
Mykolaiv Interregional University "Ukraine", Mykolaiv

SKILLS
AppStore upload UIKit

MVVM+C VIPER

SwiftUI Objective-C

Realm Database Firebase

Google Analytics Bitbucket

GitHub GitLab

Jira SPM

Cocoapods Combine
 LANGUAGES
English Ukraine

HOBBIES
Sport Camping

Yachting Guitar

Vocals

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