This interview process for a Software Engineer II at Canonical is designed to assess a candidate's technical proficiency, problem-solving abilities, and cultural fit within the company. It typically involves multiple rounds, starting with an HR screening, followed by technical interviews focusing on data structures, algorithms, system design, and coding, and concluding with a managerial or team-fit interview.
Rounds·4
Timeline·~7d
Experience·2 - 5 yrs
Comp band·US$90000 - US$130000
Interview time·165 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 05 phases
01 / 05Phase 01 of 05
Weeks 1-2: Data Structures & Algorithms Fundamentals. Practice coding problems.
Weeks 1-2: Focus on core data structures and algorithms. Cover arrays, linked lists, stacks, queues, trees (binary, BST, AVL), heaps, hash tables. Implement common sorting and searching algorithms. Practice problems related to these topics on platforms like LeetCode.
Phase 02 of 05
Weeks 3-4: System Design Principles. Practice designing scalable systems.
Weeks 3-4: Dive into system design. Study concepts like load balancing, caching, database design (SQL vs. NoSQL), message queues, microservices architecture, and distributed systems. Review common system design interview questions and practice designing systems.
Phase 03 of 05
Week 5: OS, Networking, Databases. Review core concepts.
Week 5: Brush up on operating systems concepts (processes, threads, memory management, concurrency), networking fundamentals (TCP/IP, HTTP), and database concepts. Review common interview questions related to these areas.
Phase 04 of 05
Week 6: Behavioral Questions & Company Research. Prepare STAR stories.
Week 6: Prepare for behavioral and situational questions. Reflect on past projects and experiences using the STAR method. Research Canonical's values and mission, and think about how your experiences align.
Phase 05 of 05
Week 7: Mock Interviews & Final Review. Practice coding under pressure.
Week 7: Mock interviews and final review. Practice coding problems under timed conditions. Conduct mock interviews with peers or mentors to simulate the interview environment and get feedback.
Questions
Locations
Fig · Regions — 02 locations
01 / 02Location
Interview focus
Common questions
Tips
Location
Interview focus
Common questions
Tips
Rounds
Expand a step for evaluation criteria, sample questions, and prep notes.
HR Screening · 15 min · Recruiter / HR
This is typically the first point of contact. The HR representative will discuss your background, understand your motivations, and provide an overview of the role and the interview process. They will also cover logistical aspects like salary expectations and availability. This is a good opportunity to ask general questions about Canonical and the position.
What they look for
Evaluation
Sample questions
What are your salary expectations for this role?
Why are you interested in Canonical?
What is your availability to start?
Prep for this round
Common rejection reasons
Technical Interview (Data Structures & Algorithms) · 45 min · Software Engineer
This initial technical round focuses on assessing fundamental computer science knowledge. You will be asked questions related to data structures and algorithms, and you'll likely be expected to write code to solve specific problems, often on a shared online editor or whiteboard. The interviewer will evaluate your problem-solving approach, your understanding of various data structures and algorithms, and your ability to write efficient and correct code.
What they look for
Evaluation
Sample questions
Given a binary tree, find its inorder traversal.
Implement a function to find the kth smallest element in an unsorted array.
Write a program to detect a cycle in a linked list.
Prep for this round
Common rejection reasons
System Design Interview · 60 min · Senior Software Engineer / Architect
This round evaluates your ability to design and architect software systems. You'll be presented with a high-level problem (e.g., design Twitter's feed, design a URL shortener) and expected to break it down, discuss various components, data models, APIs, and scalability considerations. The focus is on your thought process, your ability to handle ambiguity, and your understanding of trade-offs in system design.
What they look for
Evaluation
Sample questions
Design a system like TinyURL.
How would you design a real-time notification system?
Design a distributed key-value store.
Prep for this round
Common rejection reasons
Behavioral And Managerial Interview · 45 min · Hiring Manager / Team Lead
This round, often conducted by the hiring manager, focuses on your behavioral aspects, past experiences, and overall fit with the team and Canonical's culture. You'll be asked questions about your career goals, how you handle challenges, your strengths and weaknesses, and your motivation for joining Canonical. The interviewer aims to understand how you collaborate, learn, and contribute within a team environment.
What they look for
Evaluation
Sample questions
Tell me about a time you faced a significant technical challenge and how you overcame it.
How do you handle disagreements within a team?
What are you looking for in your next role?
Prep for this round
Common rejection reasons
DSA
Frequently reported on Canonical loops
Other guides
