Flexiple spent good amount of time understanding our requirements, resulting in accurate recommendations and quick ramp up by quality developers.
Overall Flexiple brought in high-level of transparency with quick turnarounds in the hiring process at a significantly lower cost than any alternate options.
Flexiple has been instrumental in helping us grow at a fast pace. Their vetting process for engineers is top notch and they connected us with quality talent quickly.
Flexiple Developers are reviewed on their experience and complexity of products built. Those who display depth and have worked on end-to-end projects are given an introductory call.
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.
Over one or more F2F interviews, the developer’s involvement and performance in building complex software products are assessed. This sets the platform to delve deeper into technology-specific discussions.
Developers' mental agility and problem-solving abilities are tested through a coding test involving algorithmic as well as skill-specific problems. A mixture of live evaluation and timed coding tests is used.
The live experience of working with developers is verified by reaching out to past clients and/or employers. Inputs on various qualitative factors such as reliability, punctuality, communication and responsiveness are received.
Performance during each engagement is continually assessed. Our developers are expected to maintain Flexiple standards across all engagements with our customers.
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 for the perfect freelance iOS developer, we’ve designed this guide to help you find one. But before diving into the fundamentals of hiring a freelance iOS developer, let's delve into some interesting facts about the history of iOS.
We have broken the sections into the following parts:
1. Let's introduce iOS to you.
2. Why is iOS widespread?
3. Writing the Job Description
4. Interview Questions for hiring an iOS developer
- Basic Questions
- Advanced Questions
- Data Structures/Algo Questions
Below are some key points that we at Flexiple have learned through trial and error - a process of filtering through over 15,000 developers.
Now that you have made a quality JD, it can still be tricky to evaluate the skills of your applicants. 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.
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).
$x = 10; $y = 5; $z = 3; if ($x / $y / $z) print "hi"; else print "hello";
The answer is A because the floating-point division returns a non zero value = 0.66 which evaluates to true and outputs ‘hi’.
$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.”