Open nowComputer scienceComputer Science Fundamentals
Learn to solve problems systematically and understand how computers work before you start programming.
Build your backend skills step by step.
Choose a course that matches your level, from computer science to object-oriented design.
20 courses Built for real backend engineering work
Open nowComputer science
Open nowSystem designSystem design
85 lessons in English and Azerbaijani covering core concepts, product designs, technologies, and real system examples. Language availability varies by lesson.
Open nowSystem DesignLow-Level Design: Practical Design with Java
Learn LLD through five English lessons and 13 lessons in Azerbaijani, with 9 practical designs, step-by-step visuals, and verified Java examples.
JavaJava and programming fundamentals
Every strong backend starts with a solid foundation.
JavaJava in depth
Write code that works, reads clearly, and behaves reliably.
AlgorithmsAlgorithms and data structures
Solve problems by choosing the right model, and explain the time and memory costs of your solution.
DatabasesDatabases and SQL
Model data correctly, store it reliably, and read it efficiently.
Spring BootSpring Boot and REST APIs
Turn an idea into a structured, testable backend.
Security and testingSecurity and testing
Test a system's boundaries before trusting it.
Distributed systemsDistributed systems
Learn to manage data and failures across services.
DevOpsProduction and DevOps
Run an application, observe its behavior, and recover from failures.
AI-assisted developmentAI-assisted programming
From AI assistants to coding agents: clarify the requirement, prepare the context, and verify the result yourself. After learning Java and testing fundamentals, you can take this module alongside the rest of the roadmap.
MicroservicesMicroservices
Learn service boundaries, communication, resilience, consistency, gateways and observability.
KafkaApache Kafka
Understand partitions, consumer groups, delivery semantics, schemas and failure recovery.
DockerDocker
Create secure, compact images and practical Compose environments for development and delivery.
KubernetesKubernetes
Deploy, configure, scale and troubleshoot applications on Kubernetes.
RedisRedis
Model data, design cache policies, coordinate work and operate Redis under real production constraints.
GoGo (Golang): from fundamentals to concurrency
Learn Go step by step through 8 modules and 44 lessons. The first lesson is open; the remaining lessons are in preparation.
Spring AIAI Engineering: Building AI Applications with Spring AI
A 12-module course on building applications with Spring AI: prompts, RAG, conversational memory, tools, MCP, audio and image processing, security, and agentic AI.
AI EngineeringAI Engineering Professional
Build AI systems you can evaluate, secure and operate. Learn LLMs, RAG, agents and model serving through 32 modules and 12 practical projects.