HLD - Interview Prep and Hands-On

This bundle gives you lifetime access to all past and upcoming batches of two in-depth courses – High-Level System Design (focused on interview prep) and Hands-On High-Level System Design (MERN + DevOps + HLD).

Here's what you get:

✅ Consistent Teaching Style
Learn from Keerti Purswani in both courses, ensuring a seamless and engaging experience throughout.

✅ Flexible Learning
Get unlimited access to recordings from live classes. Learn at your own pace, anytime. Plus, join future live batches of either course at no extra cost – stay updated with the latest concepts and trends.

✅ Supportive Community
Be part of our exclusive Discord community. Connect with peers, ask doubts, share insights, and learn together.

✅ Interactive & Practical Learning
Apply concepts through hands-on exercises, coding challenges, group projects, and mock interviews – all designed to reinforce your understanding.

✅ Lifetime Access
Revisit course material whenever needed. Perfect for revision, prep, or brushing up before interviews.

 

Explore detailed curriculum, testimonials, and FAQs:

 HLD

(https://register.educosys.com/new-courses/27-hld-high-level-system-design-batch-3)

📆 5 weeks course

📚 Get lifetime access to recordings from all previous live batches
🔄 Join all future live sessions - no extra cost
🎯 Perfect for interviews - checkout testimonials

Week-wise Curriculum

Week 1: Networking, Client and Server Protocols

• Client - Server Protocol

• Network Protocols

• Monolith & Microservices

• Websockets

• SSEs

• gRPC

Week 2: Servers, Scaling, Caching

• Latency

• Throughput

• Consistency

• Availability

• CAP Theorem

• Synchronous, Asynchronous

• PubSub (Kafka, RabbitMQ)

• Proxies

• Load Balancers

• Caching

• Service Routing

• Peer to Peer

Week 3: Storage, Databases, Migration, Indexing

• Data Storage

• SQL, NoSQL

• Specialised Storage Paradigms

• DB Migration

• Indexing

• Replication

• Sharding

• Consistent Hashing

• Horizontal, Vertical Scaling

Week 4: System Design, APIs, Security, Logging & Monitoring

• Capacity Estimation

• Polling & Streaming

• Configuration

• Rate Limiting

• Paging & Filtering

• Resiliency

• Failure & Fault Tolerance

• Logging & Monitoring

• API Design

• Security

Week 5: Revision and Preparation

• Chat App HLD (WhatsApp / Discord)

• YouTube HLD

• Uber HLD

• Stock Broker HLD (Zerodha / Upstox)

• Interview Prep Tips

Common FAQs for our HLD course:

What are the prerequisites for the course?

Internet connection and hunger for learning.

Are there any demos of different tech used in the industry?

There are around 10 demos of different tech used. The demos include Kafka, Redis, Neo4j, MongoDB, Cassandra, InfluxDB, MariaDB, and more.

How can I revise the concepts?

There are notes and quizzes for every class.

Is this course for freshers or for experienced people?

This course is for anyone who wants to master HLD. Years of experience does not matter.

 HHLD

(https://register.educosys.com/new-courses/13-hhld-hands-on-high-level-system-design-implementation)

 

 

FAQs

(Applicable to all courses on our website) 

Is this a Live or Recorded Course?

This course includes recordings from previous live batches. When you enroll, you get lifetime access to these recordings plus free entry into all upcoming live batches.

When will the next Live batch be launched?

The dates for the next live batch are yet to be finalized, but there is no need to wait - you can start learning immediately with full access to previous batch recordings! We are here to support you at every step.

What if I am interested in learning Live only?

We do not recommend delaying your learning - many of our learners have shared that watching the recordings feels just as effective as attending live sessions. That said, when you enroll, you also get access to all upcoming live batches, so you can join the next one as soon as it starts. In the meantime, you have lifetime access to previous batch recordings to start learning, revise, and build a strong foundation at your own pace.

Where can I ask you doubts?

The Discord community will always be active!

What language will the course be taught in?

Everything will be taught in English.

Do you have a mobile application?

We have a mobile application for both Android and iOS.

Can I watch the class recordings or go through notes offline?

You can download the recordings and notes on the mobile application and use them offline as per your convenience.

Do you provide a certificate for the course?

The certificate of completion is available once the live classes are over.

Can I get invoices for reimbursement?

Yes, a proper invoice with GSTIN is available as soon as you enroll in the course.