Scale Engineer

Junior Software Engineer

Software EngineerL1Medium

The Junior Software Engineer (L1) interview at Hudson River Trading is designed to assess foundational programming skills, problem-solving abilities, and a candidate's potential for growth within the company. It focuses on core computer science concepts and practical application.

Rounds·3

Timeline·~14d

Experience·0 - 2 yrs

Comp band·US$75000 - US$95000

Interview time·120 min

Evaluation

What they measure.

  • Problem-solving skills: Ability to break down complex problems into smaller, manageable parts.
  • Algorithmic thinking: Understanding of common algorithms and their efficiency.
  • Data structure knowledge: Proficiency in using and implementing various data structures.
  • Coding proficiency: Ability to write clear, concise, and correct code.
  • Communication: Ability to explain thought processes and solutions effectively.
  • Behavioral fit: Alignment with company values and team collaboration.

Preparation

How to prepare.

Tips

  1. Review fundamental data structures (arrays, linked lists, trees, hash maps) and algorithms (sorting, searching, graph traversal).
  2. Practice coding problems on platforms like LeetCode, HackerRank, or Coderbyte, focusing on easy and medium difficulty.
  3. Understand Big O notation for time and space complexity.
  4. Brush up on core programming concepts in your preferred language (e.g., object-oriented programming, memory management).
  5. Prepare to discuss your past projects in detail, highlighting your contributions and technical challenges.
  6. Research Hudson River Trading's business and culture to understand our values and mission.
  7. Practice explaining your thought process out loud as you solve problems.
  8. Be ready for behavioral questions about teamwork, problem-solving, and learning experiences.

Study plan

Fig · Study plan — 04 phases

01 / 04
01

Phase 01 of 04

Data Structures Fundamentals

Weeks 1-2: Data Structures (Arrays, Linked Lists, Stacks, Queues, Hash Maps) & Easy Problems.

Weeks 1-2: Focus on foundational data structures like arrays, linked lists, stacks, queues, and hash maps. Practice implementing them and solving problems related to their usage. Understand their time and space complexity. Begin with easy LeetCode problems.

Questions

Commonly asked.

  • Write a function to reverse a linked list.
  • Given an array of integers, find the two numbers that add up to a specific target.
  • Explain the difference between a stack and a queue.
  • What is recursion? Provide an example.
  • How would you find the most frequent element in an array?
  • Describe a time you faced a technical challenge and how you overcame it.
  • Why are you interested in working at Hudson River Trading?
  • Tell me about a project you worked on that you are proud of.
  • How do you approach learning a new technology?
  • What are your strengths and weaknesses as a software engineer?

Locations

Regional differences.

Fig · Regions — 03 locations

01 / 03

Location

New York

Interview focus

Understanding of fundamental data structures and algorithms.Ability to write clean, efficient, and well-documented code.Problem-solving approach and logical thinking.Communication skills and ability to articulate technical concepts.Enthusiasm for learning and adapting to new technologies.

Common questions

  • Explain the difference between a process and a thread.
  • Describe a situation where you had to debug a complex issue. How did you approach it?
  • What are some common data structures you've used, and when would you choose one over another?
  • How do you ensure the quality of your code?
  • Tell me about a project you're particularly proud of and your role in it.

Tips

  • For New York: Be prepared for a fast-paced environment. Emphasize your ability to learn quickly and contribute to a collaborative team.
  • For Chicago: Highlight any experience with distributed systems or high-frequency trading concepts, even at a foundational level.
  • For London: Showcase your understanding of European market structures or any relevant financial technology exposure.
  • For all locations: Practice explaining your thought process clearly and concisely. Be ready to discuss your resume in detail.

Rounds

Round-by-round.

Expand a step for evaluation criteria, sample questions, and prep notes.

DSA

Coding questions at Hudson River Trading.

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