Can you walk me through a complex web application you architected from scratch? What technical challenges did you face and how did you overcome them?
How do you ensure your code is performant, scalable, and maintainable when working on large-scale projects? Please provide some specific examples of optimizations you've implemented.
Tell me about a time when you had a major disagreement with a fellow developer on your team. What was the issue and how did you resolve it to keep the project on track?
How do you stay up-to-date with the latest trends and best practices in the fast-moving JavaScript ecosystem? What new technologies or frameworks have you experimented with recently?
Imagine you're handed a legacy codebase for a mission-critical app that has no tests or documentation. What steps would you take to quickly understand the system and begin implementing new features?
Describe your approach to designing RESTful APIs that are secure, well-documented and easy for other developers to integrate with. Feel free to use a real example to illustrate.
What processes and tools do you use to effectively debug complex issues in a production environment? How do you enable visibility and quickly identify the root cause?
Can you explain your experience with Agile development methodologies? What do you think are the key elements of a successful Sprint planning and retrospective process?
As a senior member of the engineering team, how would you approach mentoring and leveling up the skills of more junior developers? What strategies have worked well for you in the past?
What excites you most about the potential of joining Acme Tech and what unique value would you hope to add within your first 90 days in this role?
These questions are designed to assess the candidate's depth of technical expertise, problem-solving approach, communication skills, and leadership abilities. The goal is to surface relevant, concrete examples that demonstrate their fit for the senior-level position.