Coding fluency
Implement an LRU cache. Explain your data structures, test capacity one, and walk through an eviction.
What a strong answer demonstrates
Correctness, edge cases, and time / space complexity.
Prepare for PagerDuty with a focused mix of coding, design, and communication. Start with your job description and confirm the interview loop with your recruiter.
6 Practice picks
3 Interview reports
5 Levels mapped
01 / MAKE YOUR NEXT SESSION COUNT
Your preparation, made concrete.
System design
Design a notification service. Clarify delivery guarantees, model the data, then handle retries and duplicate events.
What a strong answer demonstrates
Clear requirements, a working baseline, and explicit trade-offs.
Behavioral storytelling
Describe a technical decision you changed after receiving feedback. Explain your contribution and the outcome.
What a strong answer demonstrates
Specific actions, honest reflection, and measurable impact.
BEFORE YOU PRACTICE
Ask your recruiter.
Get the details that a generic company guide cannot know.
- Which team and level is this opening for, and what does success look like?
- What rounds, durations, and evaluation criteria should I prepare for?
- Which languages, tools, and AI assistance are permitted?
- Will design focus on frontend, backend, infrastructure, or another specialty?
- Are there accommodations or preparation materials I should request?
PagerDuty practice problems
Company-linked challenges and related lessons from our library. Not a prediction of your interview.
Challenge
Difficulty 7/10
Two Sum from BST
Challenge
Difficulty 8/10
Most Strongly Connected
Challenge
Difficulty 5/10
Max Leaps in Jump Game
Challenge
Difficulty 7/10
Flood Fill Paintbucket
Challenge
Difficulty 3/10
Implement a Hash Map
Challenge
Difficulty 4/10
Treats Distribution
Real interview experiences
3 reports from candidates who interviewed at PagerDuty.
What people at PagerDuty say
Reviews originally posted on Glassdoor.
Jen Tejada is a world class CEO. Positive social impact minded culture, caliber of people is pretty good (not the best in class but better than average)
The culture is very welcoming and everyone is willing to help you with questions you may have.
Most PD employees are super nice and in general the company has tons of emotional intelligence.
Amazing team and leadership. The management genuinely takes the time to get feedback from employees and improve. The company culture is pretty awesome and there are a lot of opportunities to work on interesting engineering problems. Good Work Life Balance.
A wonderful culture where you get supported and are expected to do the same. They seem to be very willing to try and fail, and if it's a failure they try to learn from the experience. They're also incredibly diverse and very modern in their thinking. I love the fact that they follow they've given 1% of their equity, 1% of their employees time and 1% of their product to charitable causes. They also really do put the customer first which is what most organizations say but PD really does. I also really do appreciate the fact that they're willing to have remote employees and allow folks who are working at an office turn to remote working as well.
Inside the workplace