Modern backend systems must optimize how resources are fetched. Knowing how multiplexing works in HTTP/2 or how QUIC reduces latency in HTTP/3 is critical for high-performance design.
Choosing the right communication pattern dictates system performance:
: It includes roughly 16 hours of on-demand video spread across 55 lectures. udemy fundamentals of backend engineering
The course is structured to pull back the curtain on the journey of a request from the client to the backend application.
Use tools like Wireshark or curl verbose flags ( curl -v ) to visually inspect HTTP headers, TLS handshakes, and TCP segments. Seeing the bytes move makes abstract concepts tangible. Modern backend systems must optimize how resources are
As applications scale beyond a single server, network intermediaries become necessary to manage traffic safely. Forward Proxies vs. Reverse Proxies
Without indexes, a database must scan every single row in a table to find a specific record (a Full Table Scan). An index creates a specialized data structure (usually a or Hash Index ) that allows the database to find records in logarithmic or constant time, drastically speeding up read queries at the expense of slightly slower writes. Connection Pooling The course is structured to pull back the
Unlike many online tutorials that immediately dive into framework-specific coding (like Express.js, Django, or Spring Boot), this course takes a language-agnostic approach. It focuses on the fundamental building blocks of communication, databases, and server architecture.
Securing APIs using JSON Web Tokens (JWT), OAuth2, and session management. 5. System Architecture and Scalability As applications grow, they need to handle more traffic. Caching: Using Redis or Memcached to reduce database load.
Fundamentals of Backend Engineering course on Udemy, created by Hussein Nasser