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Senior iOS Developer

Knut Lorenzen , Manchester, United Kingdom


5 - 9 years

Other titles

software developer


IOS Swift Objective-c Software Architecture Software engineering + 1 more

I'm offering


United Kingdom

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Ready for

  Smaller project
  Larger project
  Ongoing relation / part-time
  Full time contractor


Typically available one month ahead

My experience

2018 - ?   job
iOS Developer
Manchester, UK.
About the Company: A global online fashion retailer
Employment terms: Full time & permanent.
Duties and responsibilites:
- As the first in-house iOS developer I have been leading development on a suite of brand new, fully native e-commerce iOS apps
- Close collaboration with backend engineers, UX experts, e-commerce staff and testers
- Code reviews and software architecture as part of a team of 3 iOS developers
- Our release in May 2019 was a phenomenal success for the business
Technologies and methods used:
- Swift 5 - Postman
- Xcode - Agile/Scrum
- Cocoa Touch/UIKIt - JIRA
- Crashlytics - mitmproxy
- Autolayout - Firebase
- CocoaPods - AWS Pinpoint
- RESTful web services - Apple Pay
- git with git-flow - Bitrise
Fashion, Backend, Online, Native, Web, Software, Development, Restful, Developer, Apps, Architecture, Web Services, Xcode, Backend, E-commerce, Firebase, Agile, Software Architecture, Jira, UX, Swift, AWS, IOS, Scrum, Git

2018 - 2018   job
for iOS students,, Remote.
now I'm working part time as a mentor for students who are learning iOS development online.
This involves a weekly one hour video call where I help the student organise their learning and discuss questions about the courses content.
IOS, Video, Mentor, Content, Development, Online

2016 - 2018   job
iOS Developer, Openshadow
Manchester, UK. About the Company: A mobile app and digital research agency with global brands among
their clients
Employment terms: Full time & permanent. Tendered my resignation due to an offer from my current employer
Examples of products contributed to:
- A skincare companion app for a one of the world's most recognised brands in cosmetics
(on the App Store, name available upon request)
• based on provided UX designs I implemented the all new version 2 from the ground
up using Swift 3, Objective-C and C++
• integrated 3D animations using cocos2d
• remotely updatable localisations for 20+ languages
- A live translator app with Bluetooth LE integrated headset (on the App store, name available on request)
• Audio recording
• Integration of Google and Microsoft speech-to-text and translation APis with websockets
• Bluetooth integration for custom controls
Technologies and methods used:
- Objective-C & Swift, C++ - Core Data
- Xcode - git with git-flow
- Cocoa Touch/UIKIt - Agile/Scrum
- Autolayout - JIRA
- Cocos2d - mitmproxy
- Core Animation - Bluetooth LE
- CocoaPods - Multithreading
- Crashlytics - WebSockets
- AVFoundation - WebRTC
- RESTful web services

Web Services, UP, Webrtc, Bluetooth, Google, App, Web, Restful, Developer, 3D, Audio, Integration, Git, Xcode, C, Agile, Objective-c, Research, Jira, UX, Swift, Animation, IOS, Scrum

My education

2011 - 2014
Uppsala University
MSc, Computer Science

2002 - 2008
University Of Applied Sciences Flensburg
Bachelors, Embedded Systems

My resume

  Download resume

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