iOS Engineering Interview Prep Course
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Nail Your Next iOS Engineering Interview

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Designed and taught by FAANG+ engineers, this course will give you a foolproof preparation strategy to crack the toughest interviews at FAANG and Tier-1 companies.

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Almost full
Next Batch
12th June, 2022
Location
Live & online
Duration
4 months (apx. 10 hours/week)
Typical Week at IKCurriculumMeet the instructorsMock interviewsInterview Prep GuideFAQs
Typical week at IKCurriculumMeet the instructorsMock interviewsInterview prep guideFAQs

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Suat Mercan
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Harisha Chemuru
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Vinayak Prabhu
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Akshay Chandrachood
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Aniruddha Tekade
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12,000+
Tech professionals trained
$1.267M
Highest offer received by an IK alum
53%
Average salary hike received by alums in 2021

What You’ll Learn in the iOS Engineering Interview Course

1
Data Structures and Algorithms 
2
Scalable Systems Design
3
UI Programming
4
Performantly Fetching and Handling Data
5
Data Persistence Strategies in iOS
6
iOS Application Design
7
Professional Branding
8
Offer Negotiation Strategies
9
Interview Success Strategies
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Why choose this course?

A typical week at Interview Kickstart

This is how we make your interview prep structured and organized. Our learners spend 10-12 hours each week on this course.

Thu

Get foundational content
Get high-quality videos and course material for the upcoming week's live class
Covers introduction to fundamentals, interview-relevant topics, and case studies
Assignment review session
Focused group discussions involving learners and the instructor on the assignment's solution
Interview-like drill down into key techniques and design choices

Sun

Attend online live sessions
Attend 4-hour sessions covering interview-relevant iOS Engineering concepts
Each class covers a wide variety of interview problems, including open-ended questions and how to approach these questions
Live feedback from a Tier-1 tech instructor

Mon-Wed

Practice problems & assignments
Practice the concepts taught in live sessions to solve assignment questions
Work on interview-oriented assignment problems and discuss the solutions
Live doubt-solving with FAANG+ instructors

Everyday

1:1 access to instructors
Personalized coaching from FAANG+ iOS instructors
Individualized and detailed attention to your questions
Solution walkthroughs
Contact for Pricing

iOS Engineering Course details and curriculum

Data structures and Algorithms
calender
5 weeks
airplay
5 live classes
1

Sorting

  • Introduction to Sorting
  • Basics of Asymptotic Analysis and Worst Case & Average Case Analysis
  • Different Sorting Algorithms and their comparison
  • Algorithm paradigms like Divide & Conquer, Decrease & Conquer, Transform & Conquer
  • Presorting
  • Extensions of Merge Sort, Quick Sort, Heap Sort
  • Common sorting-related coding interview problems
2

Recursion

  • Recursion as a Lazy Manager's Strategy
  • Recursive Mathematical Functions
  • Combinatorial Enumeration
  • Backtracking
  • Exhaustive Enumeration & General Template
  • Common recursion- and backtracking-related coding interview problems
3

Trees

  • Dictionaries & Sets, Hash Tables 
  • Modeling data as Binary Trees and Binary Search Tree and performing different operations over them
  • Tree Traversals and Constructions 
  • BFS Coding Patterns
  • DFS Coding Patterns
  • Tree Construction from its traversals 
  • Common trees-related coding interview problems
4

Graphs

  • Overview of Graphs
  • Problem definition of the 7 Bridges of Konigsberg and its connection with Graph theory
  • What is a graph, and when do you model a problem as a Graph?
  • How to store a Graph in memory (Adjacency Lists, Adjacency Matrices, Adjacency Maps)
  • Graphs traversal: BFS and DFS, BFS Tree, DFS stack-based implementation
  • A general template to solve any problems modeled as Graphs
  • Graphs in Interviews
  • Common graphs-related coding interview problems
5

Dynamic Programming

  • Dynamic Programming Introduction
  • Modeling problems as recursive mathematical functions
  • Detecting overlapping subproblems
  • Top-down Memorization
  • Bottom-up Tabulation
  • Optimizing Bottom-up Tabulation
  • Common DP-related coding interview problems
System Design
3 weeks
3 live classes
1

Online Processing Systems

  • The client-server model of Online processing
  • Top-down steps for system design interview
  • Depth and breadth analysis
  • Cryptographic hash function
  • Network Protocols, Web Server, Hash Index
  • Scaling
  • Performance Metrics of a Scalable System
  • SLOs and SLAs
  • Proxy: Reverse and Forward
  • Load balancing
  • CAP Theorem
  • Content Distribution Networks
  • Cache
  • Sharding
  • Consistent Hashing
  • Storage
  • Case Studies: URL Shortener, Instagram, Uber, Twitter, Messaging/Chat Services
2

Batch Processing Systems

  • Inverted Index
  • External Sort Merge
  • K-way External Sort-Merge
  • Distributed File System
  • Map-reduce Framework
  • Distributed Sorting
  • Case Studies: Search Engine, Graph Processor, Typeahead Suggestions, Recommendation Systems
3

Stream Processing Systems

  • Case Studies: on APM, Social Connections, Netflix, Google Maps, Trending Topics, YouTube
iOS Engineering
calender
4 weeks
Air-play
4 live classes
1

Module1 - UI Programming 

Life-Cycles
  • Deep dive into life-cycle intricacies
  • Interesting interview questions around App life-cycle and View life-cycle, e.g., Explain the difference between Inactive, Backgrounded, and Suspended app states. 
App Architecture Pattern
  • Challenging interview questions on Design patterns: MVC, MVVM, MVP, VIPER, RIBs, etc.; When to use which design pattern? Pros and cons of each of these
  • Refactoring code from one design pattern to another
UI Design  
  • Challenging UI design questions involving usage of TableViews, Collection Views, StackViews and Auto-constraints
  • How to write clean/organized, reusable code
  • Deep dive into building custom views using TableViews, Collection Views, and StackViews
  • Questions and case study around DiffableDataSource
User Interaction/Events 
  • Common interview questions on UIResponder and UIGesture
2

Module 2 - Performantly Fetching and Handling Data 

Concurrency (“Performantly”)  
  • Deep dive into implementing concurrency while building iOS applications involving concepts like GCD, Operations, async/await
Networking & Communication (“Fetching”)  
  • Interesting interview questions around making Network Requests and handling responses
  • Challenging design questions involving making paginated network calls. e.g., Strategies to reduce load time for the TikTok application.
  • Interesting interview questions around the concepts of Deep-Linking 
3

Module 3 - Data Persistence

  • A detailed discussion of data persistence strategies through interview questions. E.g. Designing offline features for the WhatsApp application. 
  • Challenging design questions involve the following: 
  • Data persistence through multiple app launches. 
  • Data persistence for 1 app life cycle or less.
  • Use of Key-chain, Core Data, User Defaults, etc 
  • Questions related to caching: when to cache? Which database to use for caching? 
  • Commonly asked interview questions around memory management, memory leaks, ARC, etc.
4

Module 4 - iOS Systems Design 

Strategy & Tactics  
  • A general template to answer system design questions
  • Common mistakes in system design interviews
  • Modularization
  • Functional Layering
  • Access control (public, private, file-private, package, open, final)
  • Protocol-Oriented Programing
  • Building Custom Frameworks
  • Importing & Building
  • Swift Package Manager/CocoaPods/etc (brief)
  • Libraries/Binaries
  • Dynamic vs. static libraries
Career Coaching
calender
3 weeks
airplay
3 live classes
1

Interview Strategy and Success

2

Behavioral Interview Prep

3

Offers and Negotiation

Support Period
calender
6 months
1

15 mock interviews

2

Take classes you missed/retake classes/tests

3

1:1 technical/career coaching

4

Interview strategy and salary negotiation support

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Practice and track progress on UpLevel

UpLevel will be your all-in-one learning platform to get you FAANG-ready, with 10,000+ interview questions, timed tests, videos, mock interviews suite, and more.
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10,000 interview questions
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Meet your instructors

Our highly experienced instructors are active hiring managers and employees at FAANG+ companies and know exactly what it takes to ace tech and managerial interviews.

William Repking

Software Engineer
15+ years experience
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Dorando Morrison

Application Manager
9+ years experience
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Quazie Kwaselow

Senior Software Engineer
15+ years experience
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instructor

Omkar Deshpande

Head of Curriculum
15+ years experience
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instructor

Jessica Griffin

Senior Technical Resourcer
9+ years experience
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Nick Camilleri

Head of Career Skills Devp. and Coaching
15+ years experience
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Get upto 15 mock interviews with                      hiring managers

What makes our mock Interviews the best:

Hiring managers from Tier-1 companies like Google & Apple

Interview with the best. No one will prepare you better!

Domain-specific Interviews

Practice for your target domain - iOS Engineering

Detailed personalized feedback

Identify and work on your improvement areas

Transparent, non-anonymous interviews

Get the most realistic experience possible
More about mock interviews

Career impact

Our engineers land high-paying and rewarding offers from the biggest tech companies, including Facebook, Google, Microsoft, Apple, Amazon, Tesla, and Netflix.

Ian Hwang

Software Engineer
Placed at:
I attended IK and I've got a lot of knowledge that helped me get into Microsoft. TheirCurriculum (algorithms and data structures) is organized very well and explanations are so helpful. Andmock interviews and the feedback helped me a lot. It was worth it!

Neetika Srivastava

Software Engineer
Placed at:
google brand logo
I really like how the program is structured and how it caters to different domains. It is really helpful. The patterns that they teach you at Interview Kickstart are really useful because you can apply those patterns to any new problem. Knowing those patterns, you can solve basically any question because you can relate it to problems you have already solved, which gives you confidence.

Chun Wu

Senior Software Engineer
Placed at:
I joined iK after stumbling across it while reviewing some other interview prep materials after doing poorly in an interview at Linkedin. I knew that doing well in these interviews would require dedication and investment of my time - but with so many resources online I didn't have structure. This is what the IK platform provided me.

Shrey Shrivastava

Software development Engineer ll
Placed at:
google brand logo
The Interview Kickstart course is very structured and informative. They teach you about DS and algo fundamentals very thoroughly and also prepare you for the software engineering interview. I really like the live classes by FAANG engineers, and the homework and tests definitely help you toprepare for a real interview. If you have been looking for a bootcamp that prepares you for software engineering interviews, I would say this is definitely the right place to do it.

Sridhar Gandham

Senior Software Engineer
Placed at:
My experience at IK was extremely positive. I was preparing for FAANG companies using the standard techniques that you find on the internet. When I started preparing, there was no structure to the madness. For example, a simple quicksort can be implemented in multiple ways. So solving a medium problem would take me about 30 minutes. The biggest benefit that I got from IK was a clear, structured way of solving problems. After IK, I could solve medium problems in 10 minutes!

Ibrahim Demidrogen

Software Engineer
Placed at:
IK is super helpful in cementing a lot of the basics and developing a deeper understanding of the core concepts that are essential to the interview process at any FAANG company. The foundation material is dense, but it is discussed at a swift pace. Omkar's instructional videos are very detailed and break down the essentials into small digestible components. The mock interview sessions are super helpful, especially for those who need additional guidance and help with defining their shortcomings.

Akriti Bhatt

Software Engineer
Placed at:
Interview Kickstart is a great platform to perfect your basics and get a deep understanding of algorithms. These sessions helped me crack Google and several other companies.
Having struggled for a while to understand what I was doing wrong in interviews and how to behave during an interview, I took the help of 1-1 interview sessions with the mentors and the guidance provided by them helped me understand the problem with my approach.
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How to enroll for the iOS Engineering Interview Course?

Learn more about Interview Kickstart and the iOS Engineering Interview Course by joining the free webinar hosted by Ryan Valles, co-founder of Interview Kickstart. You can also talk to our program advisors to get additional program-related details.
Register for webinar
It's Free
Try 7-Day Email Course for FREE
enroll-course
Already preparing or want a sneak peek? Try the Interview Prep 7-day email course

A Free Guide to Kickstart Your iOS Engineering Career at FAANG+

From the interview process and career path to interview questions and salary details — learn everything you need to know about iOS Engineering careers at top tech companies.
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Interview strategy and success
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Interview Questions
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Career Path
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What to Expect at iOS Engineering Interviews

The iOS interview is typically conducted in three main phases:
1
Recruiter screening
  • This is the first round involving informal discussions with a recruiter from human resources once your profile is shortlisted.
  • In this round, you can expect a few basic questions on your experience, technical skills, compensation, etc.
2
Online assessment
  • The online assessment round is commonly known as the technical screening
  • It involves remotely solving a coding assignment via a screen-sharing remote interview, a shared doc, or online coding platforms such as Codeforces or HackerRank.
  • A hiring manager who is driving the recruitment for iOS Developers conducts this round.
  • Apart from writing error-free, workable code to the problem statement, your ability to answer open-ended questions and ask insightful clarifying questions is also evaluated in this round.
3
On-site rounds
The final round, also commonly known as the on-site interview, consists of 4-5 interview rounds where recruiters evaluate your coding, design, UI programming, and behavioral skills.
  • As such, on-site rounds vary a lot from company to company. Some companies prefer having 2-3 explicit algorithmic coding rounds, followed by a couple of rounds on iOS domain concepts and iOS System design. 
  • Algorithmic questions: Depending on the total years of experience, candidates go through 2-3 coding (DSA-based) rounds. Usually, the difficulty level of these questions is in the Leetcode easy/medium level, but you can occasionally expect LC hard questions too. You will be expected to solve the questions using Swift/Objective C, which are the primary languages used for iOS Development. 
  • iOS fundamentals round: This round will test your iOS fundamentals. You will be grilled on your knowledge of iOS Development- Design patterns, Views, and User Interaction.
  • Bug fixing: This round will involve Fixing bugs in a given app codebase within a given time interval. 
  • Slicing of code: This short round will typically involve explaining the working of a given piece of code.
  • iOS systems design rounds (generally for experienced candidates): The number of design rounds typically increases with your work experience and applied level. Candidates are expected to design the client-side of real-world applications such as Twitch, TikTok, WhatsApp, etc. 
  • Behavioral interview: This is usually the final interview where hiring managers will ask you questions about challenging projects you worked on, how you handle professional challenges, workplace ethics and conduct, and leadership. 
To excel in the on-site interview, you must have:
  • A thorough understanding of Objective-C and Swift, as well as iOS standards and best practices
  • Library/Toolkit Experience: iOS SDK, Figma, HomeKit, CloudKit, Cocoa Touch
  • Working knowledge of the difference between synchronous and asynchronous tasks within iOS
  • Sound knowledge of core data structures, algorithms, and scalable systems design

iOS Developer Interview Questions

To land high-paying iOS Developer jobs, practicing as many interview questions as possible is key. To give you an idea of what to expect at your interview, we’ve listed down some common iOS Developer interview questions that feature in technical interviews. Let’s take a look.
1
Technical iOS Developer Interview Questions
Explain the popular styles to test the iOS apps?
What are the advantages of using emulators to test iOS apps instead of real devices?
Are there any disadvantages of emulators?
What are the important facts to consider when you test iOS applications?
What are the important facts to consider when you test iOS applications on real devices?
Is it possible to test different sizes of screens on devices?
What should be the extension of iOS files while testing different apps?
What is the full form of .ipa and adb in iOS development?
Name a few mobile app testing tools that you have used during your work experience?
Name the popular APIs that you should focus on while testing apps for battery efficiency?
What do you mean by category, and how to use category in your favor?
How can you define a protocol for iOS programming, and when should you use it?
What are the best security practices to be focused on during iOS programming?
How will you differentiate synchronous and asynchronous tasks?
Have you heard about B-trees in iOS development?
How can you define Enum?
What do you mean by bounding box in iOS programming?
What is the role of property @synthesize in iOS?
How will you differentiate the properties read-only, copy, strong, and weak?
How will you define the meaning of Code Coverage?
How will you differentiate bounds and frames?
How will you explain the responder chain in iOS?
What do you mean by Regular Expressions in iOS?
Explain the behavior of the operator overloading method?
How will you define ABI?
Explain the importance of design patterns for iOS apps?
What do you mean by Singleton Design patterns?
How will you explain the Façade design pattern as a professional iOS developer?
What do you mean by Decorator design patterns?
Can you please explain Realm benefits?
2
iOS Developer Interview Questions on Behavioral Skills
Name one application designed by you that you are most proud of.
What is your area of expertise?
Have you ever created new features to make an application run faster?
Share a project where you worked together with designers and engineers. What was your role in it?
How do you handle conflict at the workplace?
Tell us about a time when a project outcome didn’t go down the way you wanted it to.
Tell us about a time when a coworker was uncooperative.
Tell us about a time when you had to adapt to a new team.
Tell us about a time when you shared your learnings with your team.

iOS Engineering Career

iOS Engineering is a lucrative career option for software engineers who like the challenge of designing and building applications. More so, iOS Developer jobs are high-paying and in-demand. 
In this section, we’ll look at what responsibilities iOS Developer jobs entail, average salaries at FAANG+ companies, and what to expect at iOS Developer interviews. 
1
iOS Engineering Job Requirements: Job Roles and Responsibilities
Even though the specific responsibilities of iOS Engineers may vary for each company, their key responsibilities include:
Designing and developing iOS software applications
Communicating regularly with Back-end and Front-end Developers and developing application code
 Reviewing, analyzing, and resolving application issues as needed
Evaluating strategies and making recommendations on changes and improvements
Collaborating with team members on the design and implementation of new functionalities on different platforms
Consulting with developers to implement solutions in-line with the departments’ visions
Continuously learning and keeping up to date with emerging technologies to evaluate the impact on business and member value
Having expertise in designing testable software and building large-scale, complex applications
Being self-motivated with strong problem-solving skills
Being adept in database design, query optimizations, and performance tuning
Working with MVC frameworks like Symfony, Laravel, Zend
Integrating 3rd party APIs and interfaces
Working with Linux/UNIX systems
2
Qualifications Required for the Role:
Bachelor’s Degree in Computer Science, Engineering, or related field
Deep understanding and proficiency in building mobile apps from scratch using at least one mobile language (Swift, Java, Objective-C, etc.). Experience with multiple platforms is preferred
Proven working experience in software development
Working experience in iOS Development
Have published one or more iOS apps in the app store
Deep familiarity with Objective-C and Cocoa Touch
Experience working with iOS frameworks such as Core Data, Core Animation, Core Graphics, and Core Text
Experience with third-party libraries and APIs
Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
Solid understanding of the full mobile development life cycle
3
Career Roadmap for an iOS Engineer
Intern iOS Developer → Junior iOS Developer  → Senior iOS Developer → Staff Engineer iOS Developer → Principal iOS Developer

iOS Engineer Salary and Levels at FAANG

More responsibilities are added to your job description as you gain experience and knowledge. Companies use levels to represent this ascension. Companies essentially determine job levels to classify tasks such as compensation structure, leadership, and accountability.
The iOS Engineer levels at FAANG+ companies are similar to software engineer levels. They are:
facebook
Facebook iOS Engineer Salary
E3 (entry-level) → E4 → E5 → E6 → E7 → E8 (equivalent to Director; D1)
Technical Program Manager at Facebook
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
IC3
$137K
$107K
$21K
$11K
IC4
$204K
$212K
$37K
$18K
IC5
$289K
$212K
$72K
$32K
IC6
$376K
$212K
$119K
$18K
amazon
Amazon iOS Engineer Salary
L4 (SDE I) → L5 (SDE II) → L6 (SDE III) → L7 (Principal SDE) → L8 (Senior Principal SDE) → L10 (Distinguished Engineer)
Technical Program Manager at Amazon
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
L4
$136K
$104K
$26K
$9K
L5
$187K
$137K
$34K
$18K
L6
$256K
$159K
$78K
$22K
L7
$398K
$182K
$198K
$36K
apple
Apple iOS Engineer Salary
ICT 2 (entry-level) → ICT 3 → ICT 4 → ICT 5 → ICT 6 (highest level for a Software Engineer)
Technical Program Manager at Apple
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
ICT3
$213K
$151K
$43K
$19K
ICT4
$276K
$179K
$74K
$24K
ICT5
$390K
$210K
$147K
$33K
netflix
Netflix iOS Engineer Salary
Unlike other FAANG+ companies, there is only one level on the ladder of progression for Software Engineers. The company strictly hires only experienced employees; thus, the Netflix Senior Software Engineer position is the only level.
Technical Program Manager at Netflix
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
Sr. SW. Engineer
$305K
$275K
$14K
$13K
google
Google iOS Engineer Salary
L3 → L4 → L5 → L6 → L7 (Senior Staff Software Engineer) → L8 (Principal Software Engineer) → L9 (Distinguished Software Engineer) → L10 (Google Fellow) → L11 (Google Senior Fellow)
Technical Program Manager at Google
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
L3
$173K
$121K
$38K
$17K
L4
$230K
$143K
$62K
$25K
L5
$297K
$170K
$94K
$32K
L6
$389K
$200K
$139K
$50K
dollor
Salary Details of Technical Program Managers at Other Tier-1 Companies
The iOS engineer salary structure at FAANG+ companies is categorized into three major components: base salary, stocks, and bonus. The average iOS Developer salary in the United States is $108,972 per year.
Let’s look at what the iOS Developer salary is at FAANG+ companies.
iOS Engineer at Tier-1 Companies
Average compensation by level
L3
L4
Google
$131,292
Apple
$150,000
Twitter
$182,977
Meta
$178,572
Amazon
$158,643
Lyft
$178,687
Spotify
$172,756
PayPal
$161,861
Dropbox
$175,495
Airbnb
$154,138

FAQs on iOS Engineering Interview Course

1
What is the average iOS Developer’s salary in the United States?
2
How long is Interview Kickstart’s iOS Development Course?
3
Does the iOS Development Course include mock interviews?
4
How many years of experience should you have in order to be eligible to enroll in the iOS Development Course?
5
Who are the instructors for the iOS Development Course?

How to enroll for the iOS Engineering Interview Course?

Learn more about Interview Kickstart and the iOS Engineering Interview Course by joining the free webinar hosted by Ryan Valles, co-founder of Interview Kickstart. You can also talk to our program advisors to get additional program-related details.
Register for webinar
It's Free
Try 7-Day Email Course for FREE
enroll course
Already preparing or want a sneak peek? Try the Interview Prep 7-day email course
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