TikTok Software Engineer Interview Questions
Preparing for TikTok Software Engineer interview questions requires understanding the company’s product focus and scale. TikTok typically
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Find longest common subsequence length
This question evaluates understanding of dynamic programming and sequence comparison algorithms by asking for the length of the longest common subsequ...
Solve two grid problems (islands + min-cost path)
This pair of problems evaluates grid-based algorithm competencies, specifically connected-component detection and translation-invariant shape recognit...
Solve three string/stack/backtracking problems
This set evaluates proficiency with algorithmic patterns—stack-based and monotonic-stack reasoning for visibility problems, backtracking for combinato...
Discuss Python mutability, copying, and GIL
In Python, explain the differences between mutable and immutable objects and illustrate how they affect function arguments and container behavior. Des...
Compute pipeline order from dependencies
You are given a set of pipelines and a list of directed dependency pairs (A, B) meaning pipeline A depends on pipeline B and therefore B must run befo...
Describe a service performance challenge
Behavioral: Improving a Production Service's Performance Describe a challenging time you improved the performance of a production service. Include the...
Find top-k rated nodes via traversal
You are given a finite graph (directed or undirected) with n nodes and m edges. Each node u has an integer rating r[u]. Given a starting node s and an...
Find longest substring with ≥k repeats
This question evaluates proficiency with string-processing techniques and character frequency analysis, focusing on algorithmic skills in the Coding &...
Resolve user roles across account hierarchy
This question evaluates understanding of hierarchical data structures, role-based access control semantics, and set/map operations for computing effec...
Calculate transaction fees from CSV records
This question evaluates parsing and processing of structured transaction data, implementing multi-dimension fee computation rules (provider-, transact...
Compute balances, rejections, and platform reserve
This question evaluates transactional state management, time-ordered stream processing, balance reconciliation, handling of rejected transactions, and...
Solve linked list, string filtering, and puzzle
This multi-part question evaluates proficiency with linked-list pointer manipulation and constant-space linear-time algorithms, pattern-driven string ...
Explain portfolio, design language, and delivery
Explain portfolio, design language, and delivery Prompt: Portfolio Walkthrough, Design Language, and Landing Under Constraints Context You are intervi...
Explain Your System Architecture
Explain Your System Architecture System Design Interview: End-to-End Architecture Deep Dive Task Explain the end-to-end architecture of a production s...
Solve top-K and string rotation match
Solve top-K and string rotation match 1) Given an unsorted array of integers and an integer k, return the k largest elements in descending order. Impl...
Explain Redis design, persistence, and scaling
Explain Redis design, persistence, and scaling Redis: Data Structures, Persistence, Eviction, High Availability, and Operational Pitfalls Context: You...
Explain your background and career choices
Explain your background and career choices Behavioral Technical Screen: Resume Walkthrough and Career Narrative Context You will be asked to present a...
Find kth smallest in sorted 2D matrix
You are given an n x m matrix of integers where each row and each column is sorted in non-decreasing order. You are also given an integer k such that ...
Find k-th largest element in array
You are given an unsorted array of integers nums and a positive integer k. Design an efficient algorithm to find the k-th largest element in the array...
Find first and last index of target
You are given an integer array nums sorted in non-decreasing order and an integer target. Return a pair [left, right] where: - left is the index of th...