Oleksandr Malovichko, Developer in Frankfurt am Main, Hesse, Germany
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Oleksandr Malovichko

Verified Expert  in Engineering

Mobile App Development Developer

Frankfurt am Main, Hesse, Germany
Toptal Member Since
June 1, 2017

Oleksandr is a senior iOS engineer with several years of experience in software development for mobile and tablet devices. Oleksandr is dedicated to continuously discovering, evaluating, and implementing new technologies to maximize development efficiency.



Preferred Environment

Git, iOS, Swift, Xcode, MacOS, SwiftUI

The most amazing...

...thing I've made was one of my first Android apps which was downloaded more than 1,000,000 times.

Work Experience

Freelance Senior iOS Developer

2012 - PRESENT
Freelance Work
  • Worked on iOS application development for the iPhone, iPad, and Apple Watch.
  • Designed and implemented application architecture.
  • Coordinated agile development process and release cycles.
  • Made unit tests and implemented UI test code coverage.
  • Profiled and analyzed applications using various development tools.
Technologies: Cocoa Touch, Objective-C, Swift

Freelance Lead iOS Developer

2018 - 2019
Johnson & Johnson — Health IT (via Toptal)
  • Worked on an app that helps doctors pinpoint key factors that can cause depression in patients.
Technologies: Kanban, Multithreading, Speech Recognition, Objective-C, Swift

Freelance Lead iOS Developer

2017 - 2018
Johnson & Johnson — Health IT (via Toptal)
  • Worked on the Health Partner Weight Loss Surgery app.
Technologies: CocoaPods, TestFairy, Alamofire, Storyboarding, Swift

Freelance iOS/Android Engineer

2017 - 2017
911 Global Rapid Response (via Toptal)
  • Worked on watch applications for watchOS and Wear OS.
Technologies: Cordova, Java, Swift, Wear OS, WatchOS

Freelance iOS Engineer

2017 - 2017
Poppy Seed Ventures (via Toptal)
  • Developed the MVP for an iOS application.
Technologies: Storyboarding, Crashlytics, CocoaPods, Core Data, Swift

Freelance Android Developer

2011 - 2012
Freelance Work
  • Developed Android entertainment applications for customers.
  • Created and designed Android games using AndEngine OpenGL library.
  • Developed an Android entertainment application with more than 1,000,000 users.
Technologies: OpenGL, AndEngine, Eclipse, Java

Lead Software Engineer

2009 - 2011
Finance and Credit Bank
  • Developed a new backup service for the ATM.
  • Supported a type of banking software.
  • Implemented automation scripts for bank processes.
Technologies: Windows, Bash, Linux, Delphi, Java

Software Engineer

2008 - 2008
Ukrainian Innovative Bank
  • Developed automated scripts in Bash for sorting interbank mail.
  • Supported a type of banking software.
  • Wrote scripts to facilitate system administration tasks.
Technologies: Bash, Linux

Codility Solutions

These are my solutions for Codility algorithm challenges.

Health Partner Weight Surgery

This is the Health Partner for Weight Loss Surgery app which aims to help patients both prepare for and recover from bariatric surgery.

Balter Video

This is a mobile client for Balter VMS. The application allows user to watch up to 8 RTSP streams simultaneously.


This is a virtual betting game where you can bet on actual football matches and see how you stack up against your friends.

Hello Chat

A location-based instant messaging application.


I AM FILM is the premier global professional network showcasing the best curated independent and established talent, executives, and masters in the film and television industry.


Meet fascinating people nearby. Connect over similar interests, passions, hobbies or obsessions. No profile pictures, no dating, no relationship status—Heyo is for meaningful conversations with the people you are most likely to vibe with.


An application which allows users to earn money by accomplishing simple tasks.


A secure collaboration platform for teams to get work done safely.

Tretyakov Gallery Books

An official iPhone and iPad application which allows users to buy and read books about art.

Osmino WiFi

This provides you with free and fast internet access wherever you are. You turn on the automatic search and connection to open wifi networks by one tap—there aren't any settings nor complicated terms. You can check the nearest open networks on our wifi hotspot map.

Red Robinson's Legends

The Red Robinson app guides you through 50 years of rock-n-roll history uncovered by Red himself. Complementing the website, the iOS app is the easiest way to navigate Red’s catalog in search of hidden gems and then watch or listen to them on the go.


Participated in iOS and Android application development. Elk is a corporate encrypted chat like Slack.


Stop the tedious search for home products online or in-store. Kabuni is a platform for interior designers to find and connect with inspiration-starved homes across the globe, instantly. Kabuni’s technology provides designers with all of the tools they need to help clients find the perfect pieces.


Developed an iOS application which allows you to make an appointment with the best beauty specialists.


Was involved in iOS and Android application for online TV broadcasting and developed a TV remote control for the Apple Watch.


Developed the iPhone version of a social network application like Facebook for people who live in same area as you.


Swift, Swift 4, Swift 3, Objective-C, Swift 2, Swift 5, Java, Delphi, Bash, JavaScript, TypeScript, Kotlin


Core Media, Social Framework, MapKit, Core Foundation, Core Location, Cocoa Touch, Core Data, Android SDK, AndEngine, Core ML, SwiftUI


Alamofire, Google Maps SDK, REST APIs, CocoaPods, Parse SDK, Facebook SDK, OpenGL, React, Mixpanel iOS SDK


Charles, Postman, Xcode, Git, iOS Simulator, Android Studio, Terminal, Slack, Jenkins, Sketch, Crashlytics, Fastlane, SonarQube


Dependency Injection, REST, Kanban, Scrum, KISS, DRY, Functional Programming, Object-oriented Programming (OOP), Unit Testing


WatchOS, MacOS, Parse, Firebase, iOS, tvOS, Android, Parse Server, Eclipse, Linux, Windows, TestFairy, Blockchain


JSON, MySQL, Realm, NoSQL, MongoDB


Web Development, Algorithms, Mobile App Development, iPhone, iPad, Apps, Data Structures, SOLID Principles, UI Testing, Carthage, QA Automation, Storyboarding, Wear OS, Cordova, Speech Recognition, Multithreading, Cryptocurrency, Machine Learning, Blue Prism, Robotic Process Automation (RPA), Fastline

2009 - 2010

Specialist's Degree in Computer Systems and Networks

Mykhailo Ostrogradsky University - Kremenchuk, Ukraine

2005 - 2009

Bachelor's Degree in Computer Engineering

Mykhailo Ostrogradsky University - Kremenchuk, Ukraine


Improving Service Delivery with Kanban Method

LeanKanban University