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iOS Engineering Interview Prep Course

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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Get all the information about the course and pricing in our live webinar with Q&A.
Best suited for
  • Current and former iOS Engineers

Why choose this course?

Program designed by FAANG+ leads

Covering data structures, algorithms, interview-relevant topics, and career coaching

Individualized teaching and 1:1 help

Technical coaching, homework assistance, solutions discussion, and individual sessions

Mock interviews with Silicon Valley engineers

Live interview practice in real-life simulated environments with FAANG and top-tier interviewers

Personalized feedback

Constructive, structured, and actionable insights for improved interview performance

Career skills development

Resume building, LinkedIn profile optimization, personal branding, and live behavioral workshops

50% Money-Back Guarantee*

If you do well in our course but still don't land a domain-relevant job within the post-program support period, we'll refund 50% of the tuition you paid for the course.*

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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 behavioral interviews.

Nikhil Jain

Software Engineer
7+ years experience
FAANG Company

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

iOS Engineering Course details and curriculum

Data structures and Algorithms
  • 5 weeks
  • 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
  • 4 weeks
  • 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  
  • Strategies and a generic template to solve client-side system design interview questions.
  • Multiple case studies to practice 
  • Modularization theory and strategies in practice
  • How modularization adds horizontal scaling to app architecture vertical layers of abstraction; modularization’s main benefits (build times and module composability, ownership, and incremental migrations
Career Coaching
  • 3 weeks
  • 3 live classes
1

Interview Strategy and Success

2

Behavioral Interview Prep

3

Offers and Negotiation

Support Period
  • 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.
Mock interviews suite
On-demand timed tests
In-browser online judge
10,000 interview questions
100,000 hours of video explanations
Class schedules & activity alerts
Real-time progress update
11 programming languages

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 - Machine Learning

Detailed personalized feedback

Identify and work on your improvement areas

Transparent, non-anonymous interviews

Get the most realistic experience possible

1. Flexible schedule

Pick timings convenient to you

4. Technical and behavioral interviews

Uplevel your technical and behavioral interview skills

2. Remote interview experience

Mirrors the current format of remote interviews

5. Level-specific interviews

Because an L4 at Google can be quite different from an E7 at Meta

3. Feedback documentation

All the feedback you’ve ever wanted, recorded and documented

6. Interviewer of your choice

Choose based on domain

Career impact

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

Ian Hwang

Software Engineer

Placed at:

instructor-cmpny
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!
engineer

Neetika Srivastava

Software Engineer

Placed at:

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.
engineer

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.
engineer

Shrey Shrivastava

Software development Engineer ll

Placed at:

instructor-cmpny
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.
engineer

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!

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.
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enroll course

A Free Guide to Kickstart Your Back-End 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.
Register for webinar
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Interview Strategy and Success
Interview Questions
Career Path
Salary and Levels at FAANG
Frequently Asked Questions

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 on-site interview is the final round consisting of 4-5 interview rounds where recruiters evaluate your coding, client-side system design, iOS domain knowledge, and behavioral skills. As such, on-site rounds vary a lot for each company.
  • Algorithmic coding round: Depending on the years of experience, candidates go through 2-3 coding (DSA-based) rounds. Usually, the difficulty level of these questions is in the Leetcode(LC) 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-specific rounds: These rounds can be a mix of pop quizzes, bug fixing, code slicing, live coding, and system design questions. A detailed description of these types of questions can be found below. Note that FAANG companies focus only on iOS pop quiz questions and system design-type questions, while other Tier-1 companies have a mix and match of all the following types of questions.
    • iOS pop quiz questions: This will test your iOS fundamentals. You will be grilled on your knowledge of iOS Development- Design patterns, Views, and User Interaction.
    • Live coding: Code a feature of an application from scratch.
    • Bug fixing: This 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
What do you know about singletons? Where would you use one and where would you not?
What’s different between delegate, KVO, NS Notification, and Callbacks?
Which architecture do you typically use in iOS projects? Why?
What’s so bad about MVC? Why do so many articles suggest that MVC is flawed/dead/stands for Massive-View-Controller?
What’s your approach to modularising a codebase?
What are the different layers of responsibility in a typical mobile codebase?
“Tell me about a time when you had to investigate a memory leak.
How did you find out about the leak, how did you debug it, what caused it and how did you fix it?”
What’s the difference between strong, weak, and unowned?
What is ARC?
What is Core Data?
Why do you generally create a weak reference when using self in a block?
How to optimize the scrolling performance of dynamically sized table or collection views?
What’s the difference between nonatomic, atomic, and copy?
Tell me about techniques for building UI for all device types and screen sizes.
What considerations do you need when writing a UI Table View Controller which shows images downloaded from a remote server?
Design a video streaming platform.
How would you design an internet-based application which is suitable for users with patchy internet connections?
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 iOS Engineer Salary
E3 (entry-level) → E4 → E5 → E6 → E7 → E8 (equivalent to Director; D1)
iOS Engineer Salary at Facebook
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
E3
$185,807
$123,188
$41,945
$20,674
E4
$267,051
$163,659
$80,928
$22,436
E5
$385,154
$197,546
$153,991
$33,616
E6
$574,572
$231,866
$294,729
$47,976
E7
$918,378
$273,983
$571,469
$72,926
E8
$1,611,850
$315,500
$1,210,000
$86,350
Amazon iOS Engineer Salary
L4 (SDE I) → L5 (SDE II) → L6 (SDE III) → L7 (Principal SDE) → L8 (Senior Principal SDE) → L10 (Distinguished Engineer)
iOS Engineer Salary at Amazon
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
SDE I
$169,964
$128,911
$22,721
$18,321
SDE II
$239,044
$157,601
$65,045
$16,397
SDE III
$344,932
$174,437
$155,631
$14,865
Principal SDE
$595,670
$190,410
$375,350
$29,910
Senior Principal SDE
$968,889
$245,000
$723,889
$0
Apple iOS Engineer Salary
ICT 2 (entry-level) → ICT 3 → ICT 4 → ICT 5 → ICT 6 (highest level for a Software Engineer)

iOS Engineer Salary at Apple

Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
ICT2
$160,205
$124,034
$23,651
$12,521
ICT3
$217,901
$147,941
$53,299
$16,600
ICT4
$318,170
$185,903
$107,184
$25,082
ICT5
$449,691
$219,471
$192,660
$37,504
ICT6
$611,771
$251,083
$317,917
$42,771
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.
The average Netflix iOS Engineer makes an estimated $138,512 per year, including a bonus of $19,489 on top of an estimated base pay of $119,023. Netflix iOS engineer salaries can range from $70,000 to $223,000.
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)
iOS Engineer Salary at Google
Average compensation by level
Level name
Total
Base
Stock (/yr)
Bonus
L3
$189,744
$132,962
$37,190
$19,542
L4
$268,194
$161,097
$79,505
$27,579
L5
$358,096
$191,539
$131,289
$35,268
L6
$497,468
$226,019
$216,803
$54,647
L7
$695,275
$267,540
$347,284
$80,451
L8
$1,077,100
$330,200
$626,125
$120,775
iOS Engineer Salary at Other Tier-1 Companies
The iOS engineer salary structure at Tier-1 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 the other Tier-1 companies.
iOS Engineer at Tier-1 Companies
Average compensation by level
Company
Avg. iOS Engineer Base Salary/yr
Twitter
$192,617
Lyft
$187,712
Spotify
$176,667
PayPal
$161,861
Dropbox
$175,495
Airbnb
$154,138
Adobe
$174,763

FAQs on iOS Engineering Interview Course

The average iOS Developer salary in the US is $108,972 per year.
Interview Kickstart’s iOS Development Course is a 15-week program followed by an additional 6-month support period.
Yes, candidates who’ve enrolled for the program can take up to 15 practice mock interviews along with the option of scheduling one-on-one mentor sessions.
The iOS Development Course is designed for current and former iOS Developers with at least two years of professional experience.
IK’s instructors for the iOS Development Course are hiring managers, tech leads, and hiring committee members at FAANG+ companies.
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