BACKEND DEVELOPMENT · UDEMY
Spring Boot, REST API
& Microservices
Build a foundation in Spring Boot and REST APIs, then explore microservices with Spring Cloud.
Explore the courseFOR THE DEVELOPER WHO WANTS TO UNDERSTAND
Small lessons.
Deeper thinking.
Better software.
Understand the why. Build the how. Practical learning in Java, Spring Boot, microservices and AI — one clear idea at a time.
Simple, short tutorials. Space to put them into practice.
THE CODING SAINT WAYLearning, by doing
01 / UNDERSTAND
Start with a real problem
What happens when thousands of requests arrive at once?
RateLimiter.java
// One idea. Made concrete.
if (limiter.tryAcquire()) {
handle(request);
} else {
return tooManyRequests();
}02 / BUILD
Make the idea work
03 / REFLECT
Understand the trade-offs
JavaSpring BootMicroservicesSystem designAIDSA
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Turn what you know
into what you can build
A learning and practice space for system design, AI and data structures. Work through a problem yourself, compare approaches, and build a clearer understanding with every attempt.
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CHOOSE A PLACE TO BEGIN
Low-level design
Objects, responsibilities and clean abstractions
High-level design
Systems, scale and the trade-offs between
AI & Spring AI
RAG, tools, agents and practical AI systems
Data structures & algorithms
Build intuition by learning the patterns
ATTEMPT → REFLECT → UNDERSTAND
GO A LITTLE DEEPER
Clear paths through
complex subjects
Structured courses for developers who learn best by building. Follow the code, understand the choices, then make it your own.
Spring Boot, REST API
REACTIVE PROGRAMMING · UDEMY
RxJava 2: Reactive
Programming using Java
Understand streams of data and build asynchronous, non-blocking solutions with reactive Java.
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THE VISION
Knowledge grows
when it's shared simply
Good teaching makes a difficult idea feel within reach.
Coding Saint exists to make software engineering easier to understand. Start with something familiar. Explain one idea clearly. Show the code. Leave room to think.
From a short tutorial to a full course, from understanding a concept to practising it in KB: the goal stays the same. Help developers build with understanding and confidence.
More about Coding Saint ↗KEEP YOUR CURIOSITY GOING
One idea. A little more clarity.
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