How I Aced My HRT Superday: My Journey and Real Questions

Liz

·2026年2月6日

·8分钟阅读

After completing one round of online assessments and two phone interviews, I finally reached the HRT interview Superday. This intensive session included three technical interviews and one cultural fit assessment, lasting approximately five hours with a very tight schedule. While HR provided an overview of the content beforehand, there was no preparation time between the four rounds. Fortunately, I had Linkjob, a real-time interview assistant, to help me. I successfully passed the Superday. Below is my interview experience and preparation process, which I hope will be helpful to you.

Key Takeaways

Understand the HRT Superday process. Familiarize yourself with the interview stages to stay calm and focused.
Practice clear communication. Explain your thought process during technical questions to show your problem-solving skills.
Stay adaptable. Be ready for unexpected questions and adjust your responses based on the interviewer's style.
Prepare both technically and behaviorally. Balance your study time between coding challenges and teamwork-related questions.

HRT Superday Interview Process

Periods of the Superday Process

Debugging and Troubleshooting.
This demonstration consists of two parts: first, running the code locally and debugging it; second, identifying the root cause of the issue and proposing a solution. The remediation approach is open-ended, and we discussed multiple methods and their applicable scenarios.
Processing transaction data and extracting required information.
This cannot be classified as a data structures and algorithms (DSA) problem (no complex algorithms involved) nor as a design problem. It more closely resembles the daily work of an Ops Dev at HRT.
Implementing a data structure capable of handling transaction-related operations.
Similar to Interview Question 2, this also emphasizes speed and efficiency, but remains fundamentally a design problem. It falls under real-world scenario tasks.

Cultural Fit Interview.

I spoke with HRT's Global Operations Development Lead. He detailed the role's responsibilities, while I shared examples of projects I'd worked on previously. The entire process was thoroughly engaging.

The questions I encountered at the first round were quite challenging, so I turned to Linkjob for assistance. It provided me with a complete thought process and code solutions, and the interviewer didn't notice.

What Makes HRT Superday Unique

Superday is like an enhanced version of VO. I've created a table comparing these two interview formats.

Another unique aspect of HRT Superday is their inclusion of numerous debugging segments in interviews. Today, all top companies typically expect candidates to master DSA (Data Structures and Algorithms) problems on LC to pass their interviews. However, when testing my problem-solving and analytical skills, the scenarios closely mirrored the daily tasks of the position I was applying for.

My HRT Superday Experience

Technical interviews

The interview featured many open-ended questions, as I mentioned earlier, where they simulated daily work scenarios and asked you to propose solutions. Here are some of the questions I encountered:

SQL question. Was given the table schema, sample data and asked to write a sql query to accomplish something (don't remember exactly, sorry). It required doing some kind of JOIN query.
Given a small (buggy) python code that is supposed to accomplish a task. I was supposed to fix the bug by not changing more than 2-3 lines of code I think. Basically I need to identify the line that is buggy and change it.
Algorithmic question. which required a simple python code to solve. No complex data structures needed. I have never practiced on Leet code, so can't tell which level it is. But it is pretty straight forward (so probably LC easy).
It had five questions (scenarios), each consisting of a python script and asociated data file (a .csv file that the python script will read and process). In each of the questions, either data or the script or both will have a bug. (for example, invalid file format, bad syntax, e.t.c.) I am supposed to run the codes and fix them so that they produce the desired output.
Given a hypothetical scenario where a python script is suddenly facing latency issues without any changes to code itself. I was supposed to find out the reason and propose fixes. Proposing fixes was a bit open ended, so we discussed multiple approaches and when we should choose one.
On a one-dimensional array, a player cannot move if being watched by a watcher.
Input parameters include:
L: Length
W: Initial positions of watchers (list)
Player's position
End time
A list of timestamps when watchers change direction (watchers start facing left; timestamps are unsorted)
Both players and watchers move at 1 cell per unit time.
Require the number of players who reach the end.

Tips:Interviewers sometimes won't give you questions, and the exam time is extremely tight. Learn to take notes quickly.

Each question presented its own level of difficulty, but the open-ended problems were the most stressful for me. I worried I wouldn't be able to provide enough solutions to discuss. That's why I used LinkJob throughout the Superday. It wouldn't be detected by the interviewers or the testing platform, so I could use it. It generated answers based on my needs.

Dive In Now !

Watch a 1 min Demo

Behavioral and Fit Interview Approaches

This segment felt more like a casual conversation. The interviewer outlined the primary responsibilities of the role, while I shared details about my previous project experiences. Unlike the earlier parts, this process resembled a mutual assessment—both the interviewer and I were evaluating whether we were a good fit for each other.

Beyond detailing your specific responsibilities in previous projects, you may also prepare anecdotes about how you interacted with your team. I believe HRT has a distinct characteristic: it aims to assess through interviews whether you genuinely fit the role—both in terms of job responsibilities and cultural alignment.

Some friends have told me that their Superday only involves three rounds of interviews, but the interviewers will promptly notify you after the third round whether there will be a fourt

HRT Superday Preparation

Researching HRT and the Process

I started my hrt superday prep by digging deep into hrt’s interview style. I didn’t just look at generic quant interview guides. I wanted to know exactly how hrt runs their superday and what makes their process different. I read every recent post I could find on forums and reached out to past candidates. I learned that hrt values speed, accuracy, and clear communication. The hrt quant interview moves fast, so I made sure to understand the format and timing.

Here’s how I approached my research:

I checked hrt’s official website for hints about their culture and expectations.
I've been reading others' interview experiences in discussion groups to uncover patterns in the interview process.
I watched YouTube videos from people who had passed the hrt quant interview.

I noticed that hrt likes to test how candidates handle pressure.

Tip: Don’t just memorize answers. Try to understand why hrt asks certain questions. This helps you respond with confidence and flexibility.

Practicing HRT-Specific LeetCode

During my preparation, I practiced extensively on LeetCode. This not only helped solidify my foundational knowledge but also gave me a more accurate sense of problem difficulty, enabling me to manage my time effectively during interviews. HTR's interview questions are generally of medium-to-high difficulty. Below are some frequently encountered problem types:

DSA
Troubleshooting sudden latency issues in a python script
Troubleshooting sudden latency issues in a python script（I can't call this DSA because it didn't involve any complicated algorithm, can't call it Design either. This is more like I was just being an Ops Dev at HRT.）
Implement a data structure that can handle trade related operations
This was more like a culture fit interview

And the three main assessment points:

Python yield usage: Given a simple function, you must understand it and optimize/improve it.
Python file reading with `@` usage: Similarly, given a simple function, you must understand it and optimize it, while demonstrating foundational knowledge.
Given a function related to stock price calculation: Analyze its time complexity and correctness, identify issues, and suggest improvements. Additionally, given a class inheriting from dict, identify potential issues. Familiarity with dict's `__setitem__` function is required.

Mock Interviews and Time Management

Mock interviews played a huge role in my hrt superday prep. I set up practice sessions with friends and mentors who had experience with quant interviews. I asked them to act like hrt interviewers—fast-paced, direct, and ready to change the question at any moment.

Here’s how I structured my mock interviews:

I split each session into technical and behavioral rounds.
I used a timer to simulate the real hrt superday environment.
I asked for feedback after each round, focusing on my communication and adaptability.
I recorded myself to catch filler words and unclear explanations.

Note: If you want to ace your hrt superday, don’t just prep alone. Find a study buddy or join a quant prep group. Mock interviews help you build confidence and spot weaknesses before the big day.

I kept a daily schedule for my hrt prep. I balanced coding and behavioral practice. I tracked my progress and adjusted my strategy based on feedback. By the time my hrt superday arrived, I felt ready for anything the interviewers could throw at me.

Avoiding HRT Superday Pitfalls

Managing Nerves

I remember feeling my heart race before the hrt superday started. Staying calm was tough, but I found a few tricks that helped me keep my cool. First, I prepared by learning everything I could about hrt, their quant roles, and their interview style. I practiced common quant questions and used the STAR method to structure my answers. Smiling and showing enthusiasm made a big difference. I treated every challenge as a chance to learn, not just a test.

Here’s my go-to routine for managing nerves:

Prepare by researching hrt and reviewing my achievements.
Practice quant problems and behavioral questions out loud.
Stay positive and remind myself why I want to join hrt.

Tip: Take a few deep breaths before each interview round. It helps reset your mind and keeps you focused.

Handling Unexpected Questions

During my hrt superday, I faced some wild quant questions that I didn’t expect. Sometimes the interviewer switched topics or asked me to solve a problem in a new way. I learned that hrt loves to see how candidates think on their feet. When I got stuck, I talked through my thought process and asked clarifying questions. This showed the interviewers that I could adapt and communicate under pressure.

Tips：When faced with a difficult question, be honest with the interviewer rather than waiting for a hint.,stay honest and explain how to approach the problem.

FAQ

How much time should I spend preparing for the HRT Superday?

I set aside at least two weeks for focused prep. I split my time between coding, math, and mock interviews. Consistent practice helps me build confidence and speed.

Do I need to know advanced math for the interview?

I focus on strong fundamentals like probability, statistics, and mental math. I review key concepts and practice applying them to quant problems. Advanced math helps, but basics matter most.

How do I show I fit HRT’s culture?

I share examples of teamwork, adaptability, and learning from feedback. I stay positive and show genuine interest in quant work. I let my personality shine through every answer.