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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.

iOS Engineers!
Get interview-ready with lessons from FAANG+ engineers
Master core iOS Engineering interview concepts
Sharpen your coding and behavioral interview skills
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12th June, 2022
Live & online
4 months (apx. 10 hours/week)

Students who chose to uplevel with IK got placed at

Pratik Agarwal
Software Development Engineer ll
Suat Mercan
Senior Software Engineer
Anshul Bansal
Software Engineer
Kishore Periassamy
Software Development Engineer
Vinayak Prabhu
System Development Engineer
Kelsi Lakey
Software Engineer
Shrey Shrivastava
Software Development Engineer ll
Aniruddha Tekade
Senior Software Engineer
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Current and former iOS Engineers

Why choose this course?

Comprehensive Curriculum

Program designed by FAANG+ leads

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

Individualized teaching and 1:1 help

Technical coaching, homework assistance, solutions discussion, and individual session
Plenty of 1 x 1 Help

Mock interviews with Silicon Valley engineers

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

Personalized feedback

Constructive, structured, and actionable insights for improved interview performance
Salary Negotiation

Career skills development

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

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
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Dorando Morrison

Application Manager
9+ years experience
FAANG Company
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Quazie Kwaselow

Senior Software Engineer
15+ years experience
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Omkar Deshpande

Head of Curriculum
15+ years experience

Jessica Griffin

Senior Technical Resourcer
9+ years experience

Nick Camilleri

Head of Career Skills Devp. and Coaching
10+ years experience

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.


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


Attend online live sessions
Attend 4-hour sessions covering interview-relevant iOS Engineering concepts
Learn strategies to solve a wide variety of interview problems, including open-ended questions asked in FAANG+ interviews
Receive live feedback from Tier-1 tech instructors


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


1:1 access to instructors
Personalized coaching from FAANG+ iOS instructors
Individualized and detailed attention to your questions
Solution walkthroughs
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iOS Engineering Course details and curriculum

Data structures and Algorithms
5 weeks
5 live classes


  • 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


  • 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


  • 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


  • 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

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

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

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

Stream Processing Systems

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

UI Programming and Architecture

UI Programming Practices
  • UI challenges involving the usage of TableViews, Collection Views, StackViews, and Layout constraints.
  • Deep dive into the programmatic implementation of custom UI components.
Architecture Design Patterns
  • Write clean, organized, and reusable code.
  • Challenging interview questions on design patterns: MVC, MVVM, MVP, and VIPER. When to use which design pattern? Benefits and drawbacks of each architecture. Refactoring code from one design pattern to another.
High-Level Design Questions
  • Questions and case study on DiffableDataSource.
Common Interview Questions
  • UIResponder, Events, etc.
  • Frequently asked interview questions around app life-cycle and view life-cycle, e.g., Explain the difference between inactive, backgrounded, and suspended app states.

Performantly Fetching and Handling Data

  • Introduction to general multithreading concepts like deadlock and race condition. Describe how to make thread-safe. 
  • Deep dive into concepts like GCD, queues, and async/await to make API calls that do not block UI and concepts like dispatch carriers. 
  • Interesting interview questions around making Network Requests and handling responses. 
  • Live coding questions: 
  • Give an example of deadlock in iOS (dispatch-sync to a serial queue).
  • Implement a thread-safe app using the techniques stated above.
  • Debugging questions:
  • Given a piece of the code sample, fixing bugs like: 
  • UI is not updated in the main thread.
  • We were doing time-consuming work like downloading, formatting, and file reading in the main thread. 
  • We want data returns in order, but they are rendered randomly, etc.
  • Challenging design questions involving making paginated network calls. E.g., 
  • Design a Tik-Tok-like application; focus more on optimizations like:
  • Reduce load time
  • Cache
  • Preload and pagination
  • Designing an image downloading manager that will allow consumers to pass in a URL in return for an image file.
  • Design a app, which aims for e2e design:
  • Should include at least: authentication, search flight, checkout, payment, and confirmation.
  • Some corner cases should also be considered like: 
  • What if the ticket is sold out during the session
  • Different errors: API return errors, tickets not found, payment not successful
  • API design: 
  • Model design
  • Design necessary endpoints

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: 
  • Persist through 1+ app launches
  • Key-chain, CoreData, User Defaults, including file system
  • Persist for 1 app lifecycle (or less)
  • Questions related to caching: when to cache? Which database to use for caching? 
  • Commonly asked interview questions around memory management, memory leaks, ARC, etc.

iOS Systems Design

  • Understanding system design interviews (basic): What is a system design interview? What companies are looking to get out of it? How is it different from a regular technical interview?
  • Understanding system design interviews (advanced): What to do, what not to do, and how to strategize for system design interviews based on different companies, positions, and experiences.
  • Deep dive into system design interview: Generic template to solve client-side system design interview questions (along with a strategy for 1-hour vs 2-hour system design interview and 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

Interview Strategy and Success


Behavioral Interview Prep


Offers and Negotiation

Support Period
6 months

15 mock interviews


Take classes you missed/retake classes/tests


1:1 technical/career coaching


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
help circle
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 - iOS Engineering

Detailed personalized feedback

Identify and work on your improvement areas

Transparent, non-anonymous interviews

Get the most realistic experience possible

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. Their Curriculum (algorithms and data structures) is organized very well and explanations are so helpful. And mock interviews and the feedback helped me a lot. It was worth it!

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.

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:
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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!

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.

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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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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What to Expect at iOS Engineering Interviews

The iOS interview is typically conducted in three main phases:
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.
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.
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.
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? 
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 Path

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. 
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
Qualifications Required to become an iOS Engineer
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
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. Let’s look at the levels and salary details for each company:
Facebook iOS Engineer Salary & Levels
E3 (entry-level) → E4 → E5 → E6 → E7 → E8 (equivalent to Director; D1)
iOS Engineer Salary at Facebook
Average compensation by level
Level name
Stock (/yr)
Amazon iOS Engineer Salary & Levels
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
Stock (/yr)
Principal SDE 
Sr. Principal SDE 
Apple iOS Engineer Salary & Levels
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
Stock (/yr)
Netflix iOS Engineer Salary & Levels
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.
Technical Program Manager at Netflix
Average compensation by level
Level name
Stock (/yr)
Sr. SW. Engineer
Google iOS Engineer Salary & Levels
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
Stock (/yr)
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
Avg. iOS Engineer Base Salary/yr

FAQs on iOS Engineering Interview Course

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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.

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