The Software Engineer L5 interview at Optiver is a rigorous process designed to assess a candidate's technical expertise, problem-solving abilities, and cultural fit. It typically involves multiple rounds, including technical interviews focusing on data structures, algorithms, and system design, as well as behavioral interviews to gauge teamwork and communication skills. The goal is to identify candidates who can contribute effectively to Optiver's trading technology and thrive in a fast-paced, collaborative environment.
Rounds·4
Timeline·~14d
Experience·5 - 10 yrs
Comp band·US$180000 - US$250000
Interview time·210 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 05 phases
01 / 05Phase 01 of 05
Weeks 1-2: Data Structures & Algorithms Fundamentals (LeetCode Easy/Medium)
Weeks 1-2: Focus on fundamental data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, graph traversal). Practice problems on LeetCode Easy/Medium.
Phase 02 of 05
Weeks 3-4: Advanced Algorithms & OS Concepts (LeetCode Hard)
Weeks 3-4: Advance to more complex algorithms and data structures (e.g., heaps, tries, segment trees, advanced graph algorithms). Tackle LeetCode Hard problems. Begin studying operating system concepts (processes, threads, memory management, concurrency).
Phase 03 of 05
Weeks 5-6: System Design Principles & Practice
Weeks 5-6: Dive deep into system design. Study distributed systems principles (CAP theorem, consensus algorithms), database design, caching strategies, load balancing, and message queues. Read relevant books and online resources. Practice system design case studies.
Phase 04 of 05
Weeks 7-8: Concurrency & Behavioral Preparation
Weeks 7-8: Focus on concurrency and multithreading. Practice problems involving thread synchronization, deadlocks, and concurrent data structures. Review your chosen programming language's concurrency features. Start preparing for behavioral questions by reflecting on past projects and experiences.
Phase 05 of 05
Weeks 9-10: Mock Interviews & Company Research
Weeks 9-10: Conduct mock interviews, focusing on both technical and behavioral aspects. Refine your explanations and problem-solving approach. Research Optiver's specific technologies and trading domains. Review all topics covered.
Questions
Locations
Fig · Regions — 03 locations
01 / 03Location
Interview focus
Common questions
Tips
Location
Interview focus
Common questions
Tips
Location
Interview focus
Common questions
Tips
Rounds
Expand a step for evaluation criteria, sample questions, and prep notes.
Technical Interview (Coding) · 45 min · Software Engineer / Team Lead
This round focuses on your core computer science fundamentals. You will be asked to solve 1-2 coding problems, typically involving data structures and algorithms. The interviewer will assess your problem-solving approach, coding style, and ability to explain your solution and its complexity. Expect questions that test your understanding of arrays, strings, linked lists, trees, graphs, hash maps, sorting, searching, and dynamic programming.
What they look for
Evaluation
Sample questions
Given an array of integers, find the contiguous subarray with the largest sum.
Implement a function to reverse a linked list.
Find the k-th smallest element in an unsorted array.
Prep for this round
Common rejection reasons
System Design Interview · 60 min · Senior Software Engineer / Architect
This round assesses your ability to design large-scale, distributed systems. You'll be presented with an open-ended problem (e.g., design Twitter, design a ride-sharing service) and expected to outline a high-level architecture. Key areas include database selection, API design, caching, load balancing, message queues, and handling failures. The focus is on your thought process, trade-off analysis, and ability to design for scale and reliability.
What they look for
Evaluation
Sample questions
Design a system like TinyURL.
Design a distributed cache.
Design a news feed system.
Prep for this round
Common rejection reasons
Behavioral Interview · 45 min · Hiring Manager / Senior Team Member
This round focuses on your behavioral and cultural fit. You'll be asked questions about your past experiences, teamwork, conflict resolution, leadership, and motivation. The goal is to understand how you work, how you handle challenges, and whether you align with Optiver's culture. Use the STAR method (Situation, Task, Action, Result) to structure your answers.
What they look for
Evaluation
Sample questions
Tell me about a time you faced a significant technical challenge and how you overcame it.
Describe a situation where you had a conflict with a colleague. How did you resolve it?
Why are you interested in working at Optiver?
Tell me about a project you are particularly proud of.
Prep for this round
Common rejection reasons
Technical Deep Dive / Manager Interview · 60 min · Hiring Manager / Principal Engineer
This is often the final technical round, conducted by the hiring manager or a principal engineer. It may involve a deeper dive into your resume, specific technical challenges, or a more complex system design problem. The focus is on your overall technical expertise, your ability to lead projects, and how you would contribute to the team's success. Expect questions that probe your experience and decision-making process in previous roles.
What they look for
Evaluation
Sample questions
Walk me through the architecture of a system you designed from scratch.
How did you optimize the performance of a critical component in your previous role?
Describe a time you had to make a significant technical decision with incomplete information.
Prep for this round
Common rejection reasons
DSA
Frequently reported on Optiver loops
Other guides
