Production Engineering Platform Features

Learning paths

Structured modules with progress tracking and interview-depth explanations.

• Java Core — OOP, Collections, Concurrency, JVM & interview Q&A across 10 modules. Search terms: java interview prep, java core tutorial, java concurrency interview.
• Spring Boot & MVC — IoC, REST APIs, JPA, Security, testing & production patterns in 16 modules. Search terms: spring boot interview, spring mvc tutorial, spring security interview.
• React JS — Vite, React 19, RBAC, accessibility, SEO, Playwright, CI previews, and Spring API integration — free production-ready track. Search terms: react js tutorial, react production tutorial, react spring boot frontend.
• Hibernate & JPA — Entity mapping, JPQL, transactions, N+1 fixes & lazy-loading pitfalls. Search terms: hibernate interview questions, jpa tutorial, spring data jpa.
• Microservices — API Gateway, Circuit Breaker, NGINX, service discovery & distributed patterns. Search terms: microservices interview, spring cloud interview, api gateway tutorial.
• Spring AI — ChatClient, RAG, structured output & production AI patterns for Spring Boot. Search terms: spring ai tutorial, rag spring boot, llm java backend.
• System Design Rules — Scaling, caching, messaging & Java/Spring architecture for design panels. Search terms: backend system design interview, java system design, microservices design.
• Infrastructure & Middleware — IAM, Kafka, Redis, Keycloak & middleware patterns for real systems. Search terms: kafka interview, redis spring boot, keycloak oauth2 interview.

Interview practice

Hands-on drills and timed panels. No passive video courses.

• Debug & Learn — 100+ production-style debug challenges. Easy labs are free; Medium and Hard stay on the 14-Day Interview Sprint. Search terms: java debug interview, spring boot debug challenge, production debugging practice.
• Interview Bank — Human-verified Q&A with anti-patterns and a panel close line. A short guest sample is open on Try Debug so you can judge the format. The full bank sits on the 14-Day Interview Sprint with a daily plan, Medium/Hard labs, and mocks — not more unmarked questions. Search terms: java interview questions, spring boot interview questions, spring ioc interview questions, backend interview bank.
• AI Mock Interviews — Timed mock panels with instant scored feedback on technical and HR rounds. Search terms: mock technical interview, ai mock interview java, backend mock interview.
• Scenario Q&A — Production incident & design scenario questions with model answers. Search terms: backend scenario interview, production incident interview.
• HR & Self-Introduction — HR, manager & tell-me-about-yourself guides with sample answers. Search terms: hr interview prep, self introduction interview, behavioral interview backend.

Why the 14-Day Interview Sprint

The paid plan is a complete preparation program, not a larger pile of free questions.

• Structured 14-day schedule — Know what to practice today for your interview date — Java and Spring Boot first, then production incidents, system design, and a timed mock. Search terms: 14 day interview sprint, java interview schedule, spring boot interview plan.
• Progress tracking and targeted revision — A scored gap list after each mock so you revise the weak spots instead of re-reading the same answers. Search terms: interview progress tracking, weak area revision, interview gap analysis.
• Medium and Hard production challenges — Senior-level incidents after the free Easy taste — the difficulty a real panel uses. Search terms: medium hard debug interview, production debugging interview, senior java debug challenge.
• Timed mocks with scored feedback — Panel-style rounds with a rubric, then a revision day on what you missed. Included in the sprint. Search terms: mock technical interview, scored mock interview, java mock interview feedback.

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