Ace Your Big Tech Interviews

1-to-1 Mentorship for iOS & Android Engineers: Mobile System Design, Coding, and Behavioral Interview Prep.
By Andrey Tech — Ex-Meta Lead Engineer.

Book a session
What I Can Help You With
  • Mobile System Design (iOS & Android)
    Practice real mobile system design questions in a mock interview setting, just like top companies ask. I’ll guide you through your design, share tips, common patterns, and give you detailed, actionable feedback, including an honest assessment of your current level (E4, E5, etc.). You’ll know exactly where you stand and how to improve.
  • Behavioral Interview
    Do a realistic behavioral mock interview focused on big tech expectations. Topics such as project impact, conflict resolution, growth mindset, and effective communication will be covered. Then we’ll review your stories together, refine your answers, and I’ll give you detailed feedback.
  • iOS Coding Interview
    Do an iOS coding mock interview in common formats: Q&A, building a small app, or debugging code. We’ll go over key topics such as Swift, UIKit, SwiftUI, async programming, memory management, Core Data, unit testing, networking, and design patterns.
  • Algorithm Coding Interview
    Prepare for algorithm-focused coding interviews with realistic mock sessions with medium to hard LeetCode-style problems. I’ll provide detailed feedback, share practical tips, and give you an honest assessment of your current skill level to help you improve.
  • Personal Interview Plan
    I’ll evaluate your coding, system design, and behavioral skills, review your CV or LinkedIn, and identify areas to improve. Then I’ll make a prioritized, realistic plan tailored to your experience level and target companies, with exact practice topics and a suggested timeline.
  • Skill Assessment & Development
    Want to know exactly where you stand? Let’s review your skills, identify gaps, and create a realistic plan to level up your coding, system design, or interview skills.
Why work with me?
  • Hands-On Experience
    With over 10 years in software engineering, including roles as a Lead Engineer at Meta and Mobile Tech Lead at Bloomberg, where I conducted hundreds of technical interviews, I know exactly what works.
  • Real Interview Problems
    You’ll practice with the same style of system design, coding, and behavioral questions used at Big Tech companies.
  • Actionable Feedback
    Every session comes with detailed, practical feedback you can immediately apply to improve your interview performance and preparation strategy.
  • Personal Approach
    No generic advice. Just focused, 1-on-1 guidance designed to help mobile engineers succeed in their careers.
  • Real Success Stories
    Clients I’ve worked with have landed offers at Meta, Uber, Nextdoor, and Adobe.
How does it work?
Book a time
Pick a time slot that works for you from my calendar. You can choose a 60-minute or 90-minute session. For Staff Engineer and EM-level prep, I recommend 90 minutes for a deeper dive.
Set your goal
When booking, specify what you want to focus on. For example: “Mobile system design mock interview,” “Behavioral interview prep,” or “Meta full interview loop prep plan.”
Get the invite
Calendly will automatically send you a Google Meet link. If you need to cancel or reschedule, just use the links in the invite, quick and easy.
During the session
We’ll connect over video. For mobile system design, we’ll use Excalidraw for diagrams. Typically, there’s a short intro, then the mock interview, followed by detailed feedback, discussion, and time for questions.
Reviews
These reviews come straight from my Fiverr profile: no filters, just honest feedback from real engineers.
Mock Interview Recordings
Watch more on my Youtube Channel
F.A.Q.
Book Your Session Today
Still have questions?
Email me at:
andreytechofficial@gmail.com