System Design

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The training and mock interview with Dhirendra helped me get a clarity on the overall System Design interview process and thus created a realistic expectation of how to handle a System Design problem. It helped me understand how to break down the problem, navigate through the ambiguity by asking questions and then create an end to end design. During the feedback session I also got to know what things I could focus on to make design more thorough, correctly scoped and very importantly finish design in time. I am very much looking forward to learning a lot more as I continue through the course and practice more mock interviews.

Thanks,

- SM (QA/ test automation background)

I really enjoyed your system design course. Before joining the course, I was uncomfortable discussing system architecture/design in interviews and with peers due to my limited knowledge and lots of unanswered questions.

Going through the course has given me more confidence in system design. During the course, some things that stood out for me include:

• Your patience and dedication in ensuring everyone understood the concepts before moving to a new topic.

• Using your professional experiences in explaining concepts made them less abstract. 

• The flexibility in the course structure allowed for content that was tailored to attendees' needs. 

Thank you for a great course, I cannot recommend it enough!

- N (Engineering Manager)

"Coming from a Test Automation background, I did not have experience in designing scalable systems. Over the time I realized this has become a bottleneck in my career progression as a Software Engineer. I also enrolled in an online System Design course, but it did not help as the course was designed for already experienced Software Engineers. After this failure, I got in touch with Dhirendra and got to know about his System Design course.  Two plus months have passed since then. Looking back I feel very happy that I made the right decision. Dhirendra took extra efforts to ensure that all students were on the same page and even slowed down when necessary to emphasize on important concepts. Dhirendra backed his designs with  real life experiences from his previous jobs which makes the course more real. I can very well see this course being   very impactful in propelling my career further.  I would highly recommend Dhirendra's System Design course for people at all levels in their career."

Thanks,

- S (Test automation lead)

I have been out of new tech for long long time, but I knew that I have to be good in System Design to see myself at par for the current mkt. Went through many paid courses, but most of them were good in specific topics & not in all. When I got to know that Dhirendra is teaching this course so I thought lets give this topic try one more time & wala. He explained each & every topics so easily & wherever he felt that I need more easy examples; He modified right there and explained me in my wavelength. Even though it is a group class but it always felt like one one. Very interactive, not heavy for the mind & enjoyable. I have been already sharing his next course with my close circle.

Thank you Dhirendra for starting this course.

- SK (Principal Software Engineer)

In the current landscape of distributed systems and AI-driven applications, mastering system design is more critical than ever. Dhirendra’s System Design course excels in breaking down complex architectural concepts into a structured, practical approach grounded in real-world scenarios.

The course follows a hands-on methodology where Dhirendra walks through each problem end-to-end. He encourages collaborative brainstorming while guiding you to think in a disciplined, layered fashion—starting with defining functional requirements, followed by non-functional constraints (latency, throughput, consistency, scalability), and then mapping out a high-level architecture with ballpark estimates for QPS, storage, and bandwidth.

From there, you iteratively design the system using primitives like load balancers, caching strategies (Redis, CDN), databases (SQL/NoSQL), queues, and partitioning techniques (sharding, consistent hashing). He constantly challenges you to evaluate the system’s workload patterns—whether it's read-heavy, write-heavy, or latency-sensitive—and make architectural decisions accordingly.

One of the biggest takeaways from the course is his emphasis on identifying the core problem and asking the right clarifying questions. This leads to better design trade-offs, informed decisions around CAP theorem, replication strategies, and failure recovery mechanisms.

Even with years in the IT industry, I encountered several advanced concepts I hadn't worked with directly—like SSD-based event queues, geospatial indexing in Redis, Trie-based autocomplete, and Lucene for full-text search. These aren’t just theoretical—he shows where they apply and how to integrate them.

If you're looking to level up your understanding of system design with real patterns and scalable architectures, this course delivers. It equips you not just with knowledge, but a reusable mental model for approaching any large-scale system. Highly recommended for engineers, architects, and anyone serious about backend scalability and performance.

- KN (Technical Program Manager)