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Sr. iOS Developer
Atlanta , Georgia  |  Remote
Contract Position
It appears that you have already applied to this job.
Applied on June 21, 2021
Job Id #47261 Posted April 28, 2021

Remote in US (EST or CST - no PST)

We are looking for a Senior Mobile Application Developer on the iOS platform who is driven to make a difference. By solving some of today’s toughest challenges, our teams are helping to transform our clients in the areas of business, technology and marketing. 



  • Implement robust app architectures and complex user interfaces
  • Component Design/Coding/Unit Testing/Debugging
  • Follow coding guidelines as set by project team
  • Research and adopt new technologies / best practices
  • Work on high-performance consumer facing apps



  • Experience with Swift
  • Experience with Core Data, GCD, NSOperation Queue, Core Graphics, Core Animation, UIKit, AV Kit, AV Foundation.
  • Strong understanding of Object-Oriented Programming, data structures, and design patterns
  • Proficiency in iOS application development
  • Experience with agile methodology
  • Experience with implementing native device features (Push Notifications, Animations, GPS, Settings, Contacts, Apple Wallet)
  • Experience in Performance Tuning the app
  • Experience in integrating third party frameworks using Cocoa pods and Carthage.
  • Experience in designing and developing user interfaces using XCode, Interface Builder and Storyboard using Size Classes and Auto layout.
  • Understanding of Multi-threading, asynchronous concepts and reactive swift
  • Deep Understanding of design patterns such as MVP, MVVM, Observer, Factory, A

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.

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Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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