Daniel is available for hire
Hire DanielDaniel Lazarenko
Verified Expert in Engineering
iOS Developer
Location
Oslo, Norway
Toptal Member Since
January 13, 2021
Daniel is a professional iOS app developer and Objective-C guru. Specializing in mobile apps, he excels at creating lean and solid code architectures and efficiently restructuring those that exist. Daniel focuses on projects that deal with existing mobile apps, macOS apps, and libraries that require improvement, modernization, and integration of new features.
Portfolio
Pexip
SwiftUI, Swift, iOS, Objective-C
Opera Software
Cocoa, iOS, Objective-C
Experience
Availability
Part-time
Preferred Environment
iOS, Xcode
The most amazing...
...project I've worked on recently was a flexible layout system for video calls.
Work Experience
iOS App Developer
2017 - PRESENT
Pexip
- Developed and maintained a video conferencing iOS app.
- Negotiated technical decisions and development processes.
- Led and facilitated project management activities.
Technologies: SwiftUI, Swift, iOS, Objective-C
iOS App Developer
2012 - 2016
Opera Software
- Developed an innovative mobile web browser for iOS.
- Designed information architecture and developed key features and infrastructure code for the app.
- Integrated and tweaked the web browser engine of the app.
Technologies: Cocoa, iOS, Objective-C
Experience
Pexip Video Meetings
https://www.pexip.com/appsPexip lets you call, schedule, or join video meetings on your iPhone or iPad. It allows you to connect securely with your team and business contacts across the globe with high-quality audio and video.
I developed and continue to maintain and enhance this iOS app with the following key features:
- Recent calls: Displays incoming, outgoing, and missed calls.
- Contacts: Displays a list of company contacts and video systems.
- Rooms: Displays a list of company video meeting rooms.
- Meetings: Automatically monitors a user's calendar for upcoming video meetings.
- QR codes: Users can join meetings in company meeting rooms by scanning a QR code in the room.
I developed and continue to maintain and enhance this iOS app with the following key features:
- Recent calls: Displays incoming, outgoing, and missed calls.
- Contacts: Displays a list of company contacts and video systems.
- Rooms: Displays a list of company video meeting rooms.
- Meetings: Automatically monitors a user's calendar for upcoming video meetings.
- QR codes: Users can join meetings in company meeting rooms by scanning a QR code in the room.
Opera Coast Web Browser
https://en.wikipedia.org/wiki/Opera_CoastOpera Coast was a free web browser developed for iOS devices by Opera Software. I designed and developed architecture, key features, and infrastructure code for this browser, which was written from scratch and not based on any former product of Opera. It was designed for touch, while traditional browser buttons and components such as tabs, history, and bookmarks were eliminated and replaced by gestures.
Skills
Languages
Objective-C, Swift, Bash, C++
Frameworks
Cocoa, SwiftUI, AppKit
Tools
Xcode
Platforms
iOS, MacOS
Collaboration That Works
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