SARAVANAN V
Senior iOS Engineer
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PRATEEK SHARMAiOS ANDROID PHP
A senior iOS (Objective-C, Swift) developer, Prateek has 9+ years of experience as a software engineer. Over these 9 years, has developed a variety of ... A senior iOS (Objective-C, Swift) developer, Prateek has 9+ years of experience as a software engineer. Over these 9 years, has developed a variety of iOS applications as an individual contributor and a team member as well. He has also worked on PHP on the backend and is hands-on with AWS. Recently, Prateek started venturing into full-time freelancing and is working as a freelance iOS developer. Read MoreRead Less
Worked at ChalkPad
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ROBERT GACSISwift iOS
Robert is an iOS developer with a rich experience of well over 10 years under his belt. He has worked on developing a variety of apps across domains. Some of his... Robert is an iOS developer with a rich experience of well over 10 years under his belt. He has worked on developing a variety of apps across domains. Some of his work includes projects in social media, entertainment, chat based applications. He's worked on mostly native iOS apps as an individual contributor as well as a team player. He has in-depth knowledge in various components of iOS development from the conceptualization to the deployment phase.Read MoreRead Less
Worked at Bitrise
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SAM SOLOMON PRABUiOS Swift PHP
Sam Solomon is a full-stack developer with 9 years of experience in the IT industry. He has developed applications for various industries. He is ... Sam Solomon is a full-stack developer with 9 years of experience in the IT industry. He has developed applications for various industries. He is an expert in Java, JavaScript, and its frameworks like VueJS, NodeJS, ExpressJS, and other technologies like PHP, Android Java, etc. He has extensive experience in remote working. He has worked both individually and in a distributed team environment.Read MoreRead Less
Worked at Zoho
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AIMAN IFTIKHARiOS Swift Android
Aiman is a mobile app developer with 5 years of experience in the software industry. She has worked with a diverse set of industries like ... Aiman is a mobile app developer with 5 years of experience in the software industry. She has worked with a diverse set of industries like banking, security, etc. She has the experience of working with the teams of both service and product-based companies. She has good communication skills along with the experience of working remotely with teams. She is adept in technologies like Java, Kotlin, Swift. Read MoreRead Less
Worked at World Bank
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SARAVANAN ViOS REACT NATIVE REACJS
Saravanan has 10+ years of experience as an iOS developer. He is skilled in both Objective C and Swift and has built complex applications while ... Saravanan has 10+ years of experience as an iOS developer. He is skilled in both Objective C and Swift and has built complex applications while managing the migration of the codebase from Objective C to Swift. Over his career, he has worked extensively in remote teams both as an individual contributor while leading teams and as a freelance iOS developer. Read MoreRead Less
Worked at Walgreens
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DJURO ALFIREVICiOS REACT NATIVE SWIFT
Djuro, a senior iOS architect, has spent over 14 years fine-tuning his skills in Swift and Objective-C. He has developed over 155 apps across service/ ... Djuro, a senior iOS architect, has spent over 14 years fine-tuning his skills in Swift and Objective-C. He has developed over 155 apps across service/ product-based companies and startups as an architect, team lead, full-stack developer, individual contributor. As a remote experienced freelance iOS developer, Djuro is a very detail-oriented person and an exceptional team player. Read MoreRead Less
Worked at Reddit
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AMER HUKIĆiOS Swift Java
Amer has been working on developing iPhone and iPad applications for various clients including banks, startups, non-government organizations, and individuals. He has worked as a ... Amer has been working on developing iPhone and iPad applications for various clients including banks, startups, non-government organizations, and individuals. He has worked as a solo engineer as well as in teams. He has developed apps from scratch as well as worked on existing code bases. For the past 4 years, he's been working remotely for clients from different parts of the world - from Australia, Europe, and the US. Read MoreRead Less
Worked at NXP Semiconductors
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MIROSLAV KUTAKiOS Swift Objective
Miroslav is an iOS developer with experience of 10 years in the IT industry. He has worked with a diverse set of projects that includes music, health ... Miroslav is an iOS developer with experience of 10 years in the IT industry. He has worked with a diverse set of projects that includes music, health, entertainment, and other domains. He is an expert in the native technologies of iOS, Swift and Objective C. Along with this, he has also worked with NodeJS. He is a remote experienced developer with the capability of working independently, leading teams and good communication. Read MoreRead Less
Worked at Bosch
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Over a call, the developer’s ability to communicate in an articulate manner is tested. A deeper understanding of the candidate’s technical experience and also motivation to freelance is achieved.
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Strong technical abilities
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"The cooperation with Christos was excellent. I can only give positive feedback about him. Besides his general coding, the way of writing tests and preparing documentation has enriched our team very much. It is a great added value in every team.”
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Helped scale the product with a team of engineers
"Flexiple has been instrumental in helping us grow fast. Their vetting process is top notch and they were able to connect us with quality talent quickly. The team put great emphasis on matching us with folks who were a great fit not only technically but also culturally."
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Frequently Asked Questions
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How To Find The Best iOS Developers For Hire?
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In this age of mobility, where so much of what we do depends on our smartphones, the direct impact sprawls on industries pushing them to build mobile applications. According to Daxx , the number of developers targeting mobile development increased significantly from 2 Million in 2006 to 12 Million in 2016- out of which 2.8 Million were iOS developers. Although iOS is the second most installed OS after Android, estimates show that Apple’s iPhone has a 25% market share by the number of users and a 60% to 90% market share by revenue. The profits come from wealthy countries like the USA, where iOS has a more significant market share as compared to Android (58.78% to 41.03% as of July 2020).
If you’re looking to hire iOS developers for your company, this guide is going to help you find the perfect fit. We’ve included everything you need to know about hiring a freelance remote iOS developer.
- 1. Let's introduce iOS to you.
- 2. Why is iOS widespread?
- 3. What are the tools used by iOS developers?
- 3. Writing the job description to hire iOS developers
- 4. Interview Questions to hire iOS developers
- Basic Questions
- Advanced Questions
- Data Structures/Algo Questions
1. Let's introduce iOS to you
- Origin story: iOS was created and developed by Apple Inc in 2007. It is the world's second-most widely used mobile operating system after Android. The iOS App Store started in 2008 with an initial of 500 apps available. According to BuildFire, there are about 2.2 million apps available for download on the iOS app store,1 million of which are native for iPads.
- Widely popular: iOS holds about 25% of the market share after Android, which holds 68%, and the rest are smaller operating systems.
- Built using different programming languages: Swift is the most-used language to build an iOS app. Some other languages are Objective-C, C#, Python, C++, and HTML 5.
- Other trivia: The name "iOS" and its logo impose standards to limit the use of the iOS trademark to "non-certified" devices outside of their ecosystem.
2. Why is iOS widespread?
- Good revenue: According to StatCounter, Apple users spend more money on app-purchases as compared to Android.
- Requires limited effort on design: iOS powers Apple devices only, which makes it easier for developers to design apps that have to fit the limited number of screens and devices. Unlike Android, which has various screen sizes.
3. What are the tools used by iOS developers?
Here are some of the tools used by iOS developers:
1. IDEs and Code Editors
Integrated Development Environments provide all the components that are necessary for product building. The most popular tools under this category for iOS are:
- XCode - Made by Apple, reduces development time with intuitive features.
- CodeRunner - This tool has great compilation abilities and is full of amazing features.
2. App Design
The following tools are commonly used to make iOS apps that are visually appealing and provide a great, simple experience:
- Flawless - this is a free tool that can be used with XCode and allows for design comparison and analysis.
- Figma - a more complex design app that is browser-based, and compatible with most modern browsers.
3. Debugging
RayGun is a commonly used debugging tool in iOS development. It is a premium tool that shows users how people interact with the iOS app built.
4. Testing
XCTest and XCTestUI are used for this purpose. These are automation frameworks made by Apple and are a part of the XCode editor.
5. Plugins
These are some of the commonly used add-on plugins that enhance the iOS app building process:
- GitDiff - this adds visual data to XCode so that it's easy to identify and track the changes made to the code.
- Dash - comprehensive documentation and cheat sheets are available on this tool, allowing for easy reference and building.
- Injections - this tool adds, or injects, new code in your application code files to speed up the development process.
4. Writing the job description to hire iOS developers
Below are some key points that we at Flexiple have learned through trial and error - a process of filtering through over 15,000 developers. You can use these in your process to hire iOS developers.
- Years of software development experience: Be specific about the technology you’re looking for and the number of years of experience needed. A proxy to years of experience can be the number of production-level apps worked on.
- Expertise in a specific programming language: Different programming languages used to develop an iOS app have its own nuances. While a good programmer can pick up other languages, it’s a plus point to hire a developer who already has expertise in it.
- Type of products built in the past: Based on the type of product you are trying to build - social network, SAAS product, etc. - you can prioritize certain developers over others.
- Exposure to specific industries: Developers who have built products in certain industries will already know key aspects of laying the foundation for a great product and will be able to predict possible problems.
- Experience working remotely: A developer with past remote work experience is an added advantage as they would have first-hand experience of everything - right from how contracts work to streamlined communication, as well as timelines and deliverables.
- Strong communication: An essential thing to look at when hiring a freelancer is excellent communication skills. Since all the interaction happens online, a freelancer should be able to effectively communicate to ensure a streamlined execution of all work.
You can check out a more detailed job description for iOS developers here.
5. Interview Questions to hire iOS developers
Now that you have made a quality JD, it can still be tricky to evaluate the skills of your applicants when you hire iOS developers. To help you with that, we have created a pool of questions that a good iOS developer should be comfortable with.
It is important to note that the ability to answer these questions doesn't imply that you have a top quality candidate. But it definitely is a big step in that direction.
To help you navigate through these questions, we’ve categorized the interview questions in 3 parts:
A. Basic concepts: Includes all basic concepts used across languages but we've focused on their significance in iOS. This will give you an understanding of how strong their programming foundation is.
B. Advanced concepts: Includes all concepts that someone with higher expertise should know.
C. DS/Algorithm questions: To test the logical capability of the candidate.
A. Basic concepts
Coming soon!
B. Advanced concepts
Coming soon!
C. Data Structure/ Algorithm
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1. Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct order. Note that an empty string is also considered valid.
class ValidParenthesesFunc { func isValid(_ s: String) -> Bool { var stc = [Character]() for char in s { if char == "(" || char == "[" || char == "{" { stc.append(char) } else if char == ")" { guard stc.count != 0 && stc.removeLast() == "(" else { return false } } else if char == "]" { guard stc.count != 0 && stc.removeLast() == "[" else { return false } } else if char == "}" { guard stc.count != 0 && stc.removeLast() == "{" else { return false } } } return stc.isEmpty } }The above code will input 0(false). -
2. What will the output of the following code be?
a) hi$x = 10; $y = 5; $z = 3; if ($x / $y / $z) print "hi"; else print "hello";
b) hello
c) error
d) no outputThe answer is A because the floating-point division returns a non zero value = 0.66 which evaluates to true and outputs ‘hi’. -
3. What will the output of the following code be?
$x = 2 $y = 4 $z = 6 if($z > $y > $x) { echo “true”; }else{ echo “false”; }The answer is False. It may look like the output can be true because 6 > 4 > 2 is true, but PHP evaluates $z > $y first, which returns a boolean value of 1 or true. This value (true or 1) is compared to the next integer in the chain, bool(1) > $z, which will result in NULL and echo “false.”Hire iOS developers - parting thoughts
That’s it! You’re all set to hire a freelance iOS developer. As discussed, it isn't easy to find a quality freelance iOS developer but this guide makes the process easier for you. To offload the entire hiring process, reach out to us at Flexiple . We've designed a high-quality, 6-step screening process to find the top 1%, freelance developers. You can find the best freelance iOS developers here. We've already served over a hundred clients, earning great reviews for the quality of service.
Lastly, to quickly summarize the process of hiring iOS developers for you:
- Note your project requirements and hire accordingly. Do not go for the lowest or the highest-paid developer.
- Don’t hire without vetting- consider asking questions right from the basics to advanced to logical problems.
- Look for companies like Flexiple that help you find the perfect fit.
That is everything you need to know if you want to hire iOS developers. Happy hiring! :)