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Twitter Interview Questions Twitter Interview Reports Engineering at Twitter Career Levels and Compensation

Someone at Twitter says...

Good work culture. Good food. Mostly nice coworkers. Easy dev tools and setup Interesting projects that provide impact. Nice office Transparency and trust. Not productive overall Conservative strategy and product improvement. More and more engineers are getting laid back or lazy. Not enough workforce that results in chaotic collaboration. Product planning and sync are sometimes unclear that responsibilities get shifted. Clear definition on responsibilities and better sync between teams and orgs. Be fair and honoring people that actually do the work.

Twitter Interview Questions

Note: ensure you read the disclaimer on the previous page reading the accuracy and sourcing of these problems.

Is An Anagram

Understanding Anagrams: A Simple Definition An anagram is a fascinating literary device where you can rearrange the letters of a word, phrase, or name to form another meaningful sequence. Think of it as a jigsaw puzzle made of letters. For example, the word "cinema" can be rearranged to form "ice...

Difficulty: 3/10

Flood Fill Paintbucket

Imagine the implementation for the paintbucket feature in Microsoft Paint, or how certain image filters work. You click on a specific pixel on a screen, and every similar colored neighboring pixel would change to your selected color. Let's implement a simpler version of that feature. You're gi...

Difficulty: 7/10

Decimal To Binary

Today, we're going to do some math! There is only one prerequisite for answering this question, and it is knowing the definitions of binary and decimal . According to How to Convert Decimal to Binary and Binary to Decimal https: techterms.com definition binary , binary is a numeric system th...

Difficulty: 5/10

Find Shortest Palindrome Possible

We have a string str like the following: js const str "bubble" Find a way to convert it to a palindrome by inserting characters in front of it. Recall that a palindrome is defined as "a word, phrase, or sequence that reads the same backward as forward". What's the shortes...

Difficulty: 5/10

Matrix Operations

Here's a fun one: let's say we have a 2D array matrix that is a size of m rows and n columns. It is initially prefilled with 0 s and looks like the following: js 0, 0, 0, 0 , 0, 0, 0, 0 , 0, 0, 0, 0 We are then given a list of increment operations to be performed on ...

Difficulty: 7/10

Is This Graph a Tree

Given an undirected graph, can you see if it's a tree? If so, return true and false otherwise. An undirected graph lessons simple reference to graphs is a tree based _on the following conditions_: first, there cannot be a cycle. Second, the graph lessons simple reference to graph...

Difficulty: 7/10

Single Lonely Number

In a given array of numbers, one element will show up once and the others will each show up twice. Can you find the number that only appears once in O n linear time? Bonus points if you can do it in O 1 space as well. lonelyNumber 4, 4, 6, 1, 3, 1, 3 6 lonelyNumber 3, 3, 9 9...

Difficulty: 3/10

Targets and Vicinities

You're playing a game with a friend called **Target and Vicinity**. *Target and Vicinity* consists of one person thinking up a number in their head, and the other guessing that number. Sounds simple enough the caveat is that we also want to credit close guesses. To estimate the proximity of the ...

Difficulty: 6/10

Reverse a String

Hey there, welcome to the **challenges** portion of the **AlgoDaily** technical interview course! Over the next few days, you'll get some hands on experience with the essential data structures and algorithms that will help you nail your interview, and land your dream software engineering job. The ...

Difficulty: 2/10

Design of the Twitter Architecture

In the pulsating heart of our digital era, where information flows at the speed of thought and opinions ignite like wildfire, sits an unassuming blue bird a symbol of a platform that has become a global town square. **Twitter**, with nearly **200 million users** as of 2020, is not merely a social...

Difficulty: 5/10

System Design Fundamentals

Introduction to System Design System design is the process of making decisions regarding the elements of a complex application. It involves contemplating the data models, overall architecture, modules and components, and interfaces. System design is important because it ensures speed, reliabili...

Difficulty: 5/10

Crash Course Update: Day 4

**Automatic Transcript** Hey, everyone. Welcome to AlgoDaily's 60 day crash course, week one part two. As you can see here, I've been working through the course with everyone and, the instructions for the last week or two go from the introductions all the way to fizz buzz. And I'm happy to rep...

Difficulty: 5/10

Interview Reports

Software Engineer Interview Tips...

Software Engineer

I just finished up the lengthiest job search that I’ve done, and have just started a newjob as a Software Engineer at Twitter! Thought I’d share some of the ...

People at Twitter Say

This information was sourced from reviews originally posted on Glassdoor.

Great offices and location. Free food and beverages and top equipment. Flexible working and good amount of time off encouraged. Poor management and leadership within local offices. Remote offices didn't work well and there was a lot of confusion about priorities and timelines. Poor hiring choices didn't help the demotivated workforce. Projects in London not challenging and no new larger projects were brought in to engineer and run. Listen more to the longer standing employees.

The people make it. There aren't too many teams, but the ones that are there are impactful running major company priorities. It has a small company vibe, and is generally a pleasure to go into the office each day. The product is great and all sections of the UK office from Sales, Media Partnerships, Engineering, are passionate about the company. The company grew quickly with the expectation that lots of stuff that was poorly designed/architected/written would be fixed as the company grew, but now isn't being focused on because there isn't the staff. This can seem surprising, but really is a bit of an opportunity - there is low hanging fruit all over the place and a chance to be impactful.

Lots of freedom to grow, lots of nice benefits like catered lunches, breakfast and dinner. Very shallow management structure. Departments are organised into small teams that have lots of freedom to work however they want (e. g. standups, meetings, issue tracking that they use). It's starting to be a bigger company and not a startup anymore, so things that used to work now don't anymore. Flexibility is lost for corporate structure.

Every one on the team is smart and nice! Every one is willing to help. The engineer culture is great. Very flexible working hours. Nice food and good benefits. Every coin has two sides: the flexibility in working hours means working at night or weekend is needed some time. Stock price dropped harshly last year. There is a balance between being adaptive and being too adaptive. Let's stick to a good plan. Do not change the high level roadmap too frequently.