Topics

SOLID, DRY, KISS, YAGNI, and other principles for building maintainable software.

OSI model, TCP/IP, HTTP, DNS, and network protocols from packets to applications.

ACID properties, indexing, transactions, replication, and database design.

Processes, threads, memory management, scheduling, and kernel internals.

Load balancing, caching, microservices, scalability, and distributed systems design.

Consensus algorithms, leader election, fault tolerance, and distributed transactions.

Sorting, searching, graph algorithms, dynamic programming, and algorithmic thinking.

Arrays, trees, graphs, heaps, hash tables, and choosing the right structure.

REST APIs, authentication, gRPC, caching, and backend system design.

AWS, Docker, Kubernetes, CI/CD, and infrastructure as code.

STAR method, leadership, communication, and working in teams.