iOS Expert

This project has been awarded to bolshedvorsky for $40 USD / hour.

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Project Budget
$40 USD / hour
Total Bids
Project Description

TWT Digital is a startup based in São Paulo and is currently looking for a passionate iOS developer to help us build an amazing app leveraging the latest and greatest features of the iOS development platform.


You'll be responsible for contributing to the architecture and development for all aspects of the app.

Along with knowing the basics of iOS development, an ideal candidate has extensive knowledge of advanced concepts such as custom UI controls, advanced memory management, Core Data, iCloud, databases, Big Data and integration into our server-side APIs.

We are looking for someone who has a deep technical knowledge but also recognizes the impact of design and UX, and has a proven track record of delivering software capable of surprising and delighting users.

Job Requirements

Experience with iOS, Objective C and Cocoa Touch

Fundamentals in object-oriented design, data structures, algorithm design, problem solving, and complexity analysis

Experience with Git, Core Data, JSON and Web Services

Huge experience with working with the GPS

Experience building complex iOS apps that have been successfully delivered to customers

Exceptional analytical aptitude and attention to detail

Good organizational and problem solving skills

Good team player who is self-motivated and well organized

Port our existing app Zoemob to iOS : [url removed, login to view]


Must be wise in the ways of iOS development.

Customizing UI controls.

Creating advanced transforms/animations.

Familiar with advantages and pitfalls of Core Data and Core Location/GPS.

Architecting apps that utilize memory efficiently and debugging memory issues with Instruments.

Asynchronous network calls and image downloads.

In-app purchases using Store Kit.

User account management (currently managed via Parse API)

Synchronizing data between app and web database

iCloud integration

Must be creative

Must be awesome

Must be motivated. We’ll be counting on you to deal with ambiguity, solve-problems, and work with little direction.

If you are a match for this position, send us your CV along with the number of hours you can work per week. We would love to have someone working at least 30+ hours.

Don't forget to include the apps you have created and are LIVE on iTunes.

Let's build an awesome solution together!

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