📆 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

 

FAQs

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.

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.

Can I watch the classes only on the phone without a Laptop?

Yes, you can watch the classes on your phone without a laptop as HLD fundamentals primarily involve theory-based learning. However, it is recommended to take notes during the sessions to enhance your learning experience.

Will you provide notes?

Notes are available for revision purposes.

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.

Is any other course a prerequisite for HLD?

Nope, you can learn our courses in any order as per your convenience and priority.

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.

I have more questions, how can I reach out to you?

Drop us a mail at support@educosys.com.