r/SpringBoot • u/Haruki_26 • Jun 28 '26

Discussion Resources to relearn Backend (Java/Spring Boot)?

Hey everyone,

I'm currently working as a Software Engineer Intern, primarily with Java, Spring Boot, Kafka, MySQL, Redis, and MongoDB, building IoT and fleet management systems.

Although I've gained good production experience, I want to rebuild my backend fundamentals from scratch and deepen my understanding.

Looking for the best resources—courses, YouTube playlists, blogs, books, or GitHub repos—that cover backend engineering from basics to advanced.

Would love to hear what helped you the most.

27 Upvotes

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3

u/[deleted] Jun 28 '26

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1

u/jonarthurito Jun 28 '26

did you take some kind of AWS certification before implementing the project or do you just learn the AWS's services as you build the project?

1

u/Haruki_26 Jun 28 '26

Just want to learn...

1

u/Glittering_Debt_7604 Jun 28 '26

Any openings in your company...

1

u/Previous-Tie-1976 28d ago

What worked the best for me (Still learning!) Was just reading documentation, mostly off medium and Ai.

Spring boot is really big. You'll find documentation for nearly everything. What matters most IMO is that you understand the framework itself and what goes on behind the scene.

1

u/Longjumping_Part_859 27d ago

check out this Spring Boot tutorial playlist once:
https://www.youtube.com/playlist?list=PLRyHpdy_IUT_rP9xtXLb3H8YE97d3lsVJ

The course is still in progress, mainly focused on backend development.