https://sudonull.com/kafka-kraft-practice-spring-boot-microservices
Deploy Kafka cluster on KRaft, integrate with 4 Spring Boot services. Full producer/consumer code, docker-compose, topics with retention. For middle/senior dev.
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https://sudonull.com/go-and-ydb-serverless-instead-of-spring-boot
Migration of the trainer from Java to Go + YDB in Yandex Cloud Serverless. Cold starts, transactions, RU optimization. For middle/senior developers.
https://sudonull.com/java-backend-courses-2026-top-7-programs
Choose a Java backend course for 2026: Netology, Skillbox, Hexlet. Spring Boot, microservices, internships, AI. Comparison, projects, reviews. Start learning!
https://sudonull.com/coexistence-of-legacy-code-in-high-load-systems
Learn why removing legacy code is risky and how to apply feature toggles for safe coexistence in Spring Boot. Strategies for middle/senior dev without refactoring risks. Practical examples.
https://sudonull.com/java-developer-roadmap-from-scratch-free
Gain junior Java backend skills with Spring in 8–10 months. Free courses, Git, Docker, Kafka. Pet projects and chats for practice. Start now!
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