Olga Vorona, Developer in Vancouver, Canada
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Olga Vorona

Verified Expert  in Engineering

Software Developer

Vancouver, Canada
Toptal Member Since
August 25, 2022

Olga is a software developer with over ten years of experience. During this time, she developed more than 20 iOS applications, some of which currently have around 8 million monthly active users. As a part of a small team of two developers, she built a bank app from scratch in only two months. Olga loves working with an analytics-driven approach to create the best user experience possible in the shortest amount of time.


CocoaPods, ARKit, Notion, iOS, Swift, Xcode, Bitrise, Core Bluetooth...
iOS, Xcode, CocoaPods, Jira, App Development, Mobile Apps, Mobile App UI...
Swift, Xcode, CocoaPods, iOS SDK, iOS Native Libraries, Mobile, Mobile Apps...




Preferred Environment

Xcode, Swift, Objective-C

The most amazing...

...app I've created is a fully functional bank app I built in two months with the assistance of only one more iOS developer.

Work Experience

Senior iOS Developer

2021 - 2022
  • Completed the main screen and the pass creation redesign while improving the user experience and the time to reach the goal.
  • Added a few integrations with external lock providers to make the distribution of our app easier.
  • Set up continuous improvement with Bitrise and saved hours for team members.
Technologies: CocoaPods, ARKit, Notion, iOS, Swift, Xcode, Bitrise, Core Bluetooth, Core Location, JSON, REST APIs, Mobile Development, Mobile App Development, Native Mobile Apps, App Store, iOS SDK, iOS Native Libraries, Source Code Review, Code Review, Git, Task Analysis, Technical Hiring, Interviewing, SourceTree, GitHub, GitLab, Twilio, Architecture, Video Chat, SwiftUI

Senior iOS Developer

2020 - 2021
  • Created a credit product for small business owners from scratch.
  • Collaborated with the analytics and design team to create a great UX.
  • Coached four junior developers and taught them essential tools and information needed for their jobs.
Technologies: iOS, Xcode, CocoaPods, Jira, App Development, Mobile Apps, Mobile App UI, Mobile Applications, App Store, Task Analysis, Git, Code Review, Source Code Review, Interviewing, SourceTree, Architecture, Team Leadership

iOS Team Lead

2017 - 2020
  • Created an innovative augmented reality experience with iBeacon technologies to navigate inside railway stations.
  • Developed and launched a TikTok-like app in two months.
  • Built and improved more than ten apps for different clients.
Technologies: Swift, Xcode, CocoaPods, iOS SDK, iOS Native Libraries, Mobile, Mobile Apps, Mobile UI, Native Mobile Apps, Mobile App Development, Mobile Development, App Store, Code Review, Source Code Review, Git, Task Analysis, Interviews, IT Project Management, Project Management

iOS Developer

2015 - 2017
  • Developed a fully functional bank app from scratch in two months.
  • Organized and participated in various knowledge-sharing activities with a design team.
  • Redesigned the app for one of the biggest mobile network operators.
Technologies: Swift, iOS, Xcode, Google Analytics, Crashlytics, Fastlane, Jira, Core Location, Git, App Store, Code Review, Source Code Review, Interviewing, iOS SDK, iOS Native Libraries, Mobile, Mobile Apps, Mobile Applications, Mobile App Development, Swift 2, Swift 3

iOS Developer

2014 - 2015
EastBanc Technologies Russia
  • Created a research app that applied to the oil industry and helped reduce the time of in-field checks.
  • Developed a social network app for Leroy Merlin employees.
  • Worked on the Washington Post app, assisting with its redesign.
Technologies: Swift, Xcode, App Store, iOS, App Development, Apps, Apple, CocoaPods, Source Code Review, SourceTree, GitHub, GitLab, Jenkins, Fastlane, Git, Native Mobile Apps, Mobile Apps, Mobile App Development

iOS Developer

2013 - 2014
  • Developed an app for a cinema chain from scratch, allowing clients to buy tickets from their iPhones.
  • Created an app with 3D tours for users to be able to check out the interior of different venues.
  • Built an app that saved a person's life by sending location to lifeguards.
Technologies: iOS, WebKit, UIKit, Mobile, Mobile UX

Junior iOS Developer

2012 - 2012
iBear LLC
  • Worked on the most popular, at the time, personal finance product.
  • Researched voice assistant functionality before Siri existed.
  • Completed app development to the release mode, one of the existing but not published apps.
Technologies: iOS, CocoaPods, iOS Frameworks

Mobile Access App

Swiftlane’s modern face recognition and mobile access systems create a luxury experience for multifamily communities. The Swiftlane app can be used for opening doors with just a tap or walking up to a door, looking at the access point, and unlocking using just your face. User enrollment is quick and easy and can be completed in just 60 seconds.

Sber Bussiness

Sber is the biggest technology company in Russia, and Sber Bussiness is an app that provides a convenient way for business owners to access their bank services.

I was the leader of an iOS team consisting of four developers and a part of a larger product team of 16 people. More than 50 developers were working on the iOS app. We developed a successful credit feature from scratch, allowing small business owners to obtain credit directly on the app.


RapidAssist is a Swift-based application that helps teams coordinate in an emergency.

I was the leader of a team of three developers who worked on and accomplished the app's redesign, adding a chat function and fixing stability issues.

Siren App

A dating app that I redesigned to incorporate a bright, modern look and feel. I fixed bugs and maintained stability, developed chat and user profile tags, and set up analytics to track the user experience within the app.

Russian Railways App

This Swift-based application helps passengers buy tickets and get information related to their travel.

I essentially worked on the railway ticketing service and focused on an iBeacon-based navigation system inside the railway station, an augmented reality quest, and the station information system.
2009 - 2014

Master's Degree in Computer Science

Altai State Technical University - Barnaul, Russia


CocoaPods, iOS Native Libraries, REST APIs


Xcode, Git, SourceTree, Figma, Crashlytics, Sentry, Jenkins, Jira, Notion, Fastlane, Google Analytics, GitHub, GitLab


iOS Frameworks, UIKit, iOS SDK, ARKit, Core Bluetooth, Core Location, SwiftUI


Swift, Objective-C, Swift 2, Swift 3


Mobile Development, App Development


iOS, Mobile, Bitrise, Firebase, Apple, Twilio



Industry Expertise

Project Management


Software Development, Mobile UX, Mobile App Development, App Store, Mobile Apps, Mobile App UI, Mobile Applications, Source Code Review, Code Review, Task Analysis, Algorithms, Data Structures, iBeacon, WebKit, Technical Hiring, Interviewing, Computer Graphics, Native Mobile Apps, Mobile UI, Interviews, Apps, IT Project Management, Architecture, Team Leadership, Video Chat

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