Job-Ready Series, Java edition
DSA in Java: From Zero to Offer
Start from Java basics, learn 20 patterns, and crack coding rounds. Every problem in simple steps: brute force, the key trick, a dry run, clean code and Big-O.
Java edition: 405 pages
Job-Ready Series · Textbook for developers
System Design: From Zero to Hero
by Shreyash Tripathi · Full-Stack Developer & UI/UX Engineer
Scalable, reliable systems explained in simple language, with facts, humour, activities, 25+ real case studies and a question bank with answers.
- 28 chapters in 5 parts
- 25+ real system case studies
- Question bank with answers
Complete edition · 796 pages · PDFShort edition · 283 pages · PDF
Free preview: first 2 chapters (62 pages). Full book: free on request for now, sent by email.
What's inside
33 chapters and sections. The ones marked free are in the preview.
- 1. Introduction to System Designfree
- 2. Estimation and Numbers Every Engineer Should Knowfree
- 3. Networking Fundamentals
- 4. APIs and Communication
- 5. Authentication, Authorization and Security
- 6. Relational Databases and SQL
- 7. NoSQL Databases and Choosing the Right Store
- 8. Indexes and Storage Engines
- 9. Scaling and Load Balancing
- 10. Caching and CDNs
- 11. Replication
- 12. Partitioning, Sharding and Consistent Hashing
- 13. Distributed Systems Fundamentals
- 14. Distributed Transactions, Idempotency and IDs
- 15. Message Queues, Pub/Sub and Stream Processing
- 16. Architecture Styles and Microservices
- 17. Reliability, Resilience and Rate Limiting
- 18. Observability and Monitoring
- 19. Storage Systems, Search and Special Data Structures
- 20. Real-Time Systems
- 21. The System Design Interview
- 22. Case Studies I: Building Blocks
- 23. Case Studies II: Web Classics
- 24. Case Studies III: Messaging
- 25. Case Studies IV: Social and Search
- 26. Case Studies V: Media and Files
- 27. Case Studies VI: Location and Booking
- 28. Case Studies VII: Money and Data
- Appendix A: Practice Project: Design Your Own Product
- Appendix B: Quick Revision Cheat Sheet
- Appendix C: Glossary
- Appendix D: Sample Question Paper with Answers
- Appendix E: Further Reading and Resources
Who this book is for
- Students in placement season preparing for campus drives and off-campus interviews
- Students applying for internships who want one complete, simple resource
- Developers preparing for a job switch who need a fast but complete revision
Study plan for placements
- 01 Complete edition: one chapter a day takes about 33 days.
- 02 Short edition: two chapters a day takes about 17 days, good for the last weeks before interviews.
- 03 Read the worked examples, then answer the interview questions without looking before checking the answers.
System Design: questions students ask
Is System Design: From Zero to Hero good for placement preparation?
Yes, it was written for students preparing for placements, internships and interviews. It starts from the basics (Introduction to System Design, Estimation and Numbers Every Engineer Should Know, Networking Fundamentals) and goes all the way to Case Studies VII: Money and Data, with question bank with answers.
Is there a free PDF of System Design: From Zero to Hero?
Yes. The free preview PDF on this page has the first 2 chapters (62 pages). The full book is free on request for now: use the "request full book" button and it's sent to you by email.
How long does it take to finish System Design?
Complete edition: one chapter a day takes about 33 days. Short edition: two chapters a day takes about 17 days, good for the last weeks before interviews.
What is the difference between the Complete and Short editions?
Both cover the same 33 chapters. The Complete edition (796 pages) explains every topic in depth with more examples; the Short edition (283 pages) is a faster, revision-friendly version for the weeks just before interviews.
Who wrote System Design: From Zero to Hero?
Shreyash Tripathi, a Full-Stack Developer and UI/UX Engineer from India. He wrote the Job-Ready Series after struggling with scattered study material before his own placements, to give students one clear resource per subject.
Why I wrote these books
Before placements, my problem wasn't a lack of material. It was too much of it. A playlist for DBMS, a PDF for OS, three websites for DSA, and a new "must-watch" video every day. I kept switching sources, kept getting distracted, and never knew if I had covered what interviews actually ask.
I wrote them for students and early-career developers who want a serious internship or job and are tired of jumping between ten sources. Start with the free preview. If it helps, ask me for the full book.
— Shreyash Tripathi
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