Ajay Kumar

Ajay Kumar

Software Engineering Lead at Airbnb

Bengaluru, India

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About Me

I'm a software engineer with 15+ years of experience building scalable, distributed systems at some of the world's leading tech companies. Currently, I lead engineering teams at Airbnb, where I architect robust systems that serve millions of users.

Throughout my career, I've had the privilege of working at companies like Atlassian (Staff Engineer), Amazon, Walmart, Hotstar, Ola, and Paytm — each presenting unique challenges in scale, reliability, and performance.

I've been on both sides of the interview table — as a candidate who cracked interviews at top companies (and received offers from Flipkart, Adobe, Udemy, Salesforce), and as an interviewer who has conducted 200+ system design interviews. This dual perspective is what makes SystemExperts unique — I know exactly what interviewers look for and what candidates struggle with.

Why I Built SystemExperts

Fill the Gap

Most resources teach "what" to design, not "how" to think. I wanted to create content that teaches the reasoning behind architectural decisions.

Interviewer Insight

After conducting 200+ interviews, I've seen patterns in what separates "hire" from "no hire." This course shares those insights.

Real Experience

Every problem in this course is based on real systems I've built or real interviews I've conducted. No theoretical fluff.

Ready to Master System Design?

Join engineers from top companies who are using SystemExperts to prepare for their interviews.

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