All Free Courses
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Learning Roadmap — 27 Free Courses
Beginner → Intermediate → AdvancedBasic Backend Foundations
Build REST APIs from scratch: routes, HTTP methods, JSON, validation and in-memory CRUD.
FastAPI
Build high-performance Python APIs with FastAPI, Pydantic models and async routes.
Python Basics
Learn Python from zero: variables, types, control flow, functions and lists.
JavaScript Essentials
Master the language of the web: syntax, types, functions and array methods.
SQL & Databases 101
Query real data with SELECT, INSERT/UPDATE and JOINs using SQLite.
Intermediate Backend
Secure your API with JWT auth, connect to Postgres and compose middleware with clean error handling.
Testing & TDD
Write reliable code with pytest: assertions, fixtures, parametrization and the red-green-refactor cycle.
Node.js Fundamentals
Go beyond the browser: modules, the file system, events and streams with Node.js.
Consuming APIs with Fetch
Call external APIs from the browser: GET/POST, JSON, error handling and timeouts.
Docker & Containers
Package apps with images, Dockerfiles and docker-compose for reproducible deployments.
PostgreSQL Deep Dive
Go further with indexes, advanced JOINs, aggregations and subqueries on real data.
Advanced Backend
Scale with Redis caching, decouple with message queues and push live data over WebSockets.
Kubernetes
Orchestrate containers with kubectl, Pods, Deployments, Services and rolling updates.
GraphQL APIs
Design schemas, write resolvers and handle queries/mutations with type safety.
gRPC Services
Build high-performance RPC services with Protocol Buffers and streaming.
System Design & Scalability
Master caching layers, load balancing, sharding, and the CAP theorem.
Event-Driven Architecture
Decouple with RabbitMQ/Kafka, event sourcing, and idempotent projections.
API Gateways & Service Mesh
Route, rate-limit, and observe traffic with nginx, Traefik, Istio and Envoy.
Git Pro Workflow
Master interactive rebase, cherry-pick, bisect, and trunk-based CI with protected branches.
Linux & Bash Automation
Write robust shell scripts: arrays, awk/sed, cron, systemd units, and performance profiling.
Agentic AI Engineering
Build autonomous agents with LLM prompting, tool-calling, memory, and LangGraph.
Advanced Prompt Engineering
Zero/few-shot prompting, chain-of-thought, RAG prompting, and defenses against prompt injection.
LLM App Development
Embeddings, vector DBs (FAISS/Pinecone), similarity search, and retrieval-augmented generation pipelines.
Terraform & Infrastructure as Code
HCL, providers, modules, remote backends, workspaces, and CI/CD for Terraform.
Observability (Metrics, Tracing, Logging)
Prometheus metrics, OpenTelemetry tracing, structured logging, and Grafana dashboards.
Advanced Go (Concurrency & Stdlib)
Goroutines, channels, select, sync primitives, testing, and production Go patterns.
Clean Architecture & DDD
Domain-driven design, entities/value objects, bounded contexts, and clean layer separation.