Senior Principal Engineer
The Senior Principal Engineer (P70) interview at Atlassian is a rigorous process designed to assess deep technical expertise, leadership capabilities, and strategic thinking. Candidates are expected to demonstrate a high level of proficiency in software design, architecture, problem-solving, and influencing technical direction across multiple teams. This role requires not only strong individual contribution but also the ability to mentor and guide other engineers, drive technical initiatives, and contribute to the overall engineering excellence at Atlassian.
4
~21 days
10 - 15 yrs
US$180000 - US$250000
225 min
Overall Evaluation Criteria
Technical Expertise & Problem Solving
Leadership & Influence
Strategic Thinking & Business Acumen
Preparation Tips
Study Plan
Foundation & Company Understanding
Weeks 1-2: Atlassian products, CS fundamentals, engineering culture.
Weeks 1-2: Deep dive into Atlassian's product suite (Jira, Confluence, Bitbucket, Trello, etc.), understanding their core functionalities, target users, and underlying technical challenges. Review Atlassian's engineering blog and public statements on technology and culture. Revisit fundamental CS concepts: data structures, algorithms, operating systems, and networking, focusing on their application in large-scale systems.
System Design & Architecture
Weeks 3-5: System Design, distributed systems, scalability, reliability.
Weeks 3-5: Focus on System Design. Study distributed systems concepts (CAP theorem, consensus algorithms, microservices, event-driven architectures, caching strategies, database choices). Practice designing complex systems like social media feeds, e-commerce platforms, or real-time collaboration tools. Consider scalability, availability, consistency, and fault tolerance. Review common design patterns and anti-patterns.
Behavioral & Leadership Preparation
Weeks 6-7: Behavioral questions, leadership, mentorship, STAR method.
Weeks 6-7: Prepare for Behavioral and Leadership questions. Reflect on your career, identifying key projects, leadership roles, mentorship experiences, and instances of conflict resolution or influencing others. Use the STAR method to structure your answers. Think about how you embody Atlassian's values and how you would contribute to the company's technical vision.
Mock Interviews & Final Review
Week 8: Mock interviews, feedback, refine answers, prepare questions.
Week 8: Mock interviews. Conduct mock interviews focusing on system design, behavioral questions, and technical problem-solving. Seek feedback from peers or mentors. Review any areas identified as weaknesses and refine your answers and approaches. Prepare specific questions to ask the interviewers about the role, team, and company.
Commonly Asked Questions
Location-Based Differences
Sydney, Australia
Interview Focus
Common Questions
Describe a time you had to influence a team with a different technical opinion. How did you approach it?
How do you balance technical debt with delivering new features under pressure?
Walk me through a complex system you designed or significantly contributed to. What were the trade-offs?
How do you mentor junior engineers and foster a culture of learning?
What are your thoughts on the future of [specific technology relevant to Atlassian, e.g., cloud-native architectures, distributed systems]?
Tips
Austin, USA
Interview Focus
Common Questions
How do you handle ambiguity in project requirements and technical direction?
Tell me about a time you had to make a difficult technical trade-off that had significant consequences.
What strategies do you employ to ensure the reliability and performance of large-scale distributed systems?
How do you stay current with emerging technologies and evaluate their potential adoption?
Describe your experience with incident management and post-mortems for critical system failures.
Tips
Bangalore, India
Interview Focus
Common Questions
How do you approach architectural reviews and provide constructive feedback?
Describe a situation where you had to push back on a technical decision made by senior leadership.
What is your philosophy on code quality, testing, and CI/CD for large engineering organizations?
How do you foster a culture of psychological safety within your teams?
Discuss a time you identified and addressed a significant technical risk.
Tips
Process Timeline
Interview Rounds
4-step process with detailed breakdown for each round
Technical Problem Solving
Assess core technical skills and problem-solving abilities through coding or design challenges.
This round focuses on assessing your fundamental technical skills and your ability to apply them to solve complex problems. You will likely be asked to work through a coding challenge or a design problem that requires you to demonstrate your understanding of data structures, algorithms, and software design principles. The interviewer will evaluate your approach to problem-solving, your ability to write clean and efficient code, and your understanding of trade-offs.
What Interviewers Look For
Evaluation Criteria
Questions Asked
Design a rate limiter for a web service.
Implement a function to find the k-th largest element in an unsorted array.
How would you design a URL shortening service?
Preparation Tips
Common Reasons for Rejection
System Design & Architecture
Assess your ability to design complex, scalable, and reliable software systems.
This round is dedicated to evaluating your ability to design and architect complex software systems. You'll be presented with a high-level problem and expected to design a robust, scalable, and maintainable solution. The focus will be on your understanding of distributed systems, databases, caching, messaging queues, and other architectural components, as well as your ability to articulate the trade-offs involved in your design choices.
What Interviewers Look For
Evaluation Criteria
Questions Asked
Design a system to handle real-time analytics for a large e-commerce platform.
How would you design a distributed cache system?
Design the backend for a video streaming service like Netflix.
Preparation Tips
Common Reasons for Rejection
Behavioral & Leadership Interview
Assess leadership, collaboration, and behavioral fit through past experiences.
This round focuses on your leadership, collaboration, and behavioral aspects. You'll be asked questions about your past experiences, how you've handled challenging situations, mentored team members, and influenced technical direction. The interviewer wants to understand how you operate within a team, your leadership style, and how you align with Atlassian's culture and values.
What Interviewers Look For
Evaluation Criteria
Questions Asked
Tell me about a time you had to lead a team through a difficult technical challenge.
How do you mentor junior engineers? Provide an example.
Describe a situation where you disagreed with your manager or a senior colleague. How did you handle it?
Preparation Tips
Common Reasons for Rejection
Strategic & Executive Interview
Assess strategic thinking, technical vision, and organizational impact with senior leadership.
This final round is with a senior leader and focuses on your strategic thinking, technical vision, and ability to drive impact at an organizational level. You'll discuss your experiences in shaping technical strategy, influencing product direction, and contributing to the broader engineering organization. The interviewer will assess your understanding of the business context and how your technical expertise can drive significant value for Atlassian.
What Interviewers Look For
Evaluation Criteria
Questions Asked
What is your vision for the future of [specific technology area relevant to Atlassian]? How would you position Atlassian to leverage it?
Describe a time you had to make a significant technical decision with long-term business implications.
How would you foster innovation and technical excellence across multiple engineering teams?
Preparation Tips
Common Reasons for Rejection
Commonly Asked DSA Questions
Frequently asked coding questions at Atlassian