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Select Any IT Course (34 Courses • 100% Topics Covered)
Python Training
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DSA with Java Training
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TypeScript Training
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PostgreSQL Training
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Full Stack MERN & TypeScript Cloud Engineering
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Java Spring Boot Microservices & System Design
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Applied Data Science, GenAI & MLOps Engineering
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Java Full Stack Development & Enterprise Cloud Architecture
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Python Full Stack Development & Enterprise Generative AI Architecture
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Node.js, TypeScript & Modern Full Stack Engineering (MERN / PERN)
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AWS Certified Solutions Architect & Cloud Engineering Master Program
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Java Full Stack Development & Enterprise Cloud Architecture — Topic-Wise Voice + Gemini AI Interviews
Choose any syllabus topic below to launch a live spoken technical interview (max 2 AI interviews per topic per day). Ready to master architecture, debugging, and live deployment directly under a seasoned Industry Expert? Enroll in the complete program (with 84 AI Interview rounds, Live Client Production Project & Verified Internship Letter) for just ₹54,999!
All Modules & Topics in Java Full Stack Development & Enterprise Cloud Architecture
JVM ClassLoader, Stack vs Heap, G1/ZGC & Escape Analysis
Purpose: To understand and apply JVM ClassLoader, Stack vs Heap, G1/ZGC & Escape Analysis in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Write low-GC enterprise Java services that never crash under peak production load, so your code stays reliable, fast, and easy to maintain in production.
Records, Sealed Hierarchies, Pattern Matching & Generics
Purpose: To understand and apply Records, Sealed Hierarchies, Pattern Matching & Generics in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Model strict, immutable domain contracts for banking and SaaS microservices, so your code stays reliable, fast, and easy to maintain in production.
Streams API, CompletableFuture & Project Loom Virtual Threads
Purpose: To understand and apply Streams API, CompletableFuture & Project Loom Virtual Threads in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Handle 50,000+ concurrent blocking I/O requests cleanly without thread-pool exhaustion, so your code stays reliable, fast, and easy to maintain in production.
Arrays, Sliding Window, Binary Search & Hashing Internals
Purpose: To understand and apply Arrays, Sliding Window, Binary Search & Hashing Internals in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Clear product-company OA rounds and optimize hot lookup paths from O(N²) to O(N), so your code stays reliable, fast, and easy to maintain in production.
Trees, Heaps, PriorityQueues & Trie Prefix Indexing
Purpose: To understand and apply Trees, Heaps, PriorityQueues & Trie Prefix Indexing in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Implement real-time job schedulers, top-K leaderboards, and instant search autocomplete, so your code stays reliable, fast, and easy to maintain in production.
Graphs (BFS/DFS/Dijkstra) & Dynamic Programming Patterns
Purpose: To understand and apply Graphs (BFS/DFS/Dijkstra) & Dynamic Programming Patterns in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Solve dependency resolution, shortest-path routing, and resource-allocation problems, so your code stays reliable, fast, and easy to maintain in production.
Normalized Schema Design, CTEs, Window Functions & JSONB
Purpose: To understand and apply Normalized Schema Design, CTEs, Window Functions & JSONB in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Author analytical financial queries and hybrid relational-document data models, so your code stays reliable, fast, and easy to maintain in production.
MVCC Isolation, B-Tree/GIN Indexes & EXPLAIN ANALYZE Tuning
Purpose: To understand and apply MVCC Isolation, B-Tree/GIN Indexes & EXPLAIN ANALYZE Tuning in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Eliminate deadlocks and tune slow 800ms SQL queries down to sub-8ms index scans, so your code stays reliable, fast, and easy to maintain in production.
PostgreSQL pgvector Embeddings, HNSW Indexes & Flyway Migrations
Purpose: To understand and apply PostgreSQL pgvector Embeddings, HNSW Indexes & Flyway Migrations in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Store semantic AI vectors alongside transactional SQL tables with versioned migrations, so your code stays reliable, fast, and easy to maintain in production.
IoC Container, Bean Scopes, CGLIB Proxies & Profiles
Purpose: To understand and apply IoC Container, Bean Scopes, CGLIB Proxies & Profiles in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Master how Spring wires enterprise applications and avoid proxy self-invocation bugs, so your code stays reliable, fast, and easy to maintain in production.
RESTful Controllers, Bean Validation, ProblemDetails & OpenAPI 3.1
Purpose: To understand and apply RESTful Controllers, Bean Validation, ProblemDetails & OpenAPI 3.1 in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Build self-documented, contract-tested JSON APIs with RFC-7807 error responses, so your code stays reliable, fast, and easy to maintain in production.
Spring Actuator, Micrometer Metrics & Structured Logging
Purpose: To understand and apply Spring Actuator, Micrometer Metrics & Structured Logging in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Expose liveness/readiness probes and latency histograms for production monitoring, so your code stays reliable, fast, and easy to maintain in production.
Entity Lifecycle, Dirty Checking, Fetch Joins & N+1 Elimination
Purpose: To understand and apply Entity Lifecycle, Dirty Checking, Fetch Joins & N+1 Elimination in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Prevent hidden Hibernate N+1 query storms that cripple production databases, so your code stays reliable, fast, and easy to maintain in production.
@Transactional Propagation, Optimistic/Pessimistic Locking & HikariCP
Purpose: To understand and apply @Transactional Propagation, Optimistic/Pessimistic Locking & HikariCP in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Prevent double-debit race conditions during simultaneous wallet transfers, so your code stays reliable, fast, and easy to maintain in production.
Transactional Outbox Pattern & Testcontainers PostgreSQL Suites
Purpose: To understand and apply Transactional Outbox Pattern & Testcontainers PostgreSQL Suites in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Verify real database queries in CI using ephemeral Dockerized PostgreSQL containers, so your code stays reliable, fast, and easy to maintain in production.
SecurityFilterChain, Argon2 Hashing & Rotating JWT Refresh Tokens
Purpose: To understand and apply SecurityFilterChain, Argon2 Hashing & Rotating JWT Refresh Tokens in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Protect stateless APIs and browser SPAs against token theft, XSS, and CSRF, so your code stays reliable, fast, and easy to maintain in production.
OAuth2 / OIDC Resource Servers, Method RBAC & Multi-Tenant Guards
Purpose: To understand and apply OAuth2 / OIDC Resource Servers, Method RBAC & Multi-Tenant Guards in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Enforce fine-grained tenant and role permissions across enterprise endpoints, so your code stays reliable, fast, and easy to maintain in production.
OWASP API Top-10 Hardening & Redis Sliding-Window Rate Limiting
Purpose: To understand and apply OWASP API Top-10 Hardening & Redis Sliding-Window Rate Limiting in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Block credential stuffing, broken object-level auth (BOLA), and abusive traffic spikes, so your code stays reliable, fast, and easy to maintain in production.
Strict TypeScript 5 Generics, Discriminated Unions & Zod Schemas
Purpose: To understand and apply Strict TypeScript 5 Generics, Discriminated Unions & Zod Schemas in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Catch API contract mismatches at compile time before UI code ever reaches production, so your code stays reliable, fast, and easy to maintain in production.
React 19 Hooks, Server/Optimistic Actions, TanStack Query & Routing
Purpose: To understand and apply React 19 Hooks, Server/Optimistic Actions, TanStack Query & Routing in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Build snappy, accessible dashboards with instant cache invalidation and role guards, so your code stays reliable, fast, and easy to maintain in production.
Real-Time SSE / WebSocket Streams, Virtualized Tables & Vitest UI Tests
Purpose: To understand and apply Real-Time SSE / WebSocket Streams, Virtualized Tables & Vitest UI Tests in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Stream live AI tokens and 100k-row audit logs smoothly at 60fps, so your code stays reliable, fast, and easy to maintain in production.
Spring AI ChatClient, Prompt Templates, Advisors & Structured Outputs
Purpose: To understand and apply Spring AI ChatClient, Prompt Templates, Advisors & Structured Outputs in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Integrate LLMs cleanly into Java microservices with strongly typed Java Record outputs, so your code stays reliable, fast, and easy to maintain in production.
Document ETL, Chunking, pgvector Hybrid Search & Citation Grounding
Purpose: To understand and apply Document ETL, Chunking, pgvector Hybrid Search & Citation Grounding in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Build enterprise RAG copilots that answer strictly from verified company documents, so your code stays reliable, fast, and easy to maintain in production.
Spring AI Function/Tool Calling, Guardrails & Automated Faithfulness Evals
Purpose: To understand and apply Spring AI Function/Tool Calling, Guardrails & Automated Faithfulness Evals in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Let Java AI agents invoke audited Spring services safely without prompt-injection leaks, so your code stays reliable, fast, and easy to maintain in production.
Domain-Driven Bounded Contexts & Spring Cloud API Gateway Routing
Purpose: To understand and apply Domain-Driven Bounded Contexts & Spring Cloud API Gateway Routing in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Decompose monoliths cleanly with centralized auth, routing, and request correlation, so your code stays reliable, fast, and easy to maintain in production.
Resilience4j Circuit Breakers, Bulkheads, Timeouts & Jittered Retries
Purpose: To understand and apply Resilience4j Circuit Breakers, Bulkheads, Timeouts & Jittered Retries in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Stop cascading outages when downstream payment or notification services degrade, so your code stays reliable, fast, and easy to maintain in production.
Kafka KRaft Partitions, Idempotent Producers, Consumer Groups & DLQs
Purpose: To understand and apply Kafka KRaft Partitions, Idempotent Producers, Consumer Groups & DLQs in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Process high-volume asynchronous business events with zero message loss, so your code stays reliable, fast, and easy to maintain in production.
Distributed Sagas, Redis 7 Cache-Aside & Distributed Locks
Purpose: To understand and apply Distributed Sagas, Redis 7 Cache-Aside & Distributed Locks in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Cut database read load by 90% and coordinate multi-service distributed workflows, so your code stays reliable, fast, and easy to maintain in production.
Multi-Stage JRE Dockerfiles, Non-Root Hardening & Compose Stacks
Purpose: To understand and apply Multi-Stage JRE Dockerfiles, Non-Root Hardening & Compose Stacks in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Shrink Spring Boot container images by 65% and run full local microservice topologies, so your code stays reliable, fast, and easy to maintain in production.
Kubernetes Deployments, Ingress TLS, ConfigMaps/Secrets, HPA & Probes
Purpose: To understand and apply Kubernetes Deployments, Ingress TLS, ConfigMaps/Secrets, HPA & Probes in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Auto-scale Java pods with zero downtime during traffic surges on Kubernetes, so your code stays reliable, fast, and easy to maintain in production.
AWS Multi-AZ VPC, IAM OIDC Least Privilege, ALB, EC2 & S3/CloudFront
Purpose: To understand and apply AWS Multi-AZ VPC, IAM OIDC Least Privilege, ALB, EC2 & S3/CloudFront in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Architect secure, production-grade cloud networks and edge storage on AWS, so your code stays reliable, fast, and easy to maintain in production.
RDS Multi-AZ Failover, KMS Secrets & Modular Terraform State Automation
Purpose: To understand and apply RDS Multi-AZ Failover, KMS Secrets & Modular Terraform State Automation in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Provision repeatable cloud environments via version-controlled Infrastructure as Code, so your code stays reliable, fast, and easy to maintain in production.
GitHub Actions CI/CD, Trivy/Sonar Gates & Blue-Green Releases
Purpose: To understand and apply GitHub Actions CI/CD, Trivy/Sonar Gates & Blue-Green Releases in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Automate test, security scan, container build, and zero-downtime cloud deployment, so your code stays reliable, fast, and easy to maintain in production.
OpenTelemetry Distributed Tracing, Prometheus, Grafana & HLD/LLD Interviews
Purpose: To understand and apply OpenTelemetry Distributed Tracing, Prometheus, Grafana & HLD/LLD Interviews in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Trace cross-service latency bottlenecks and ace Staff/SDE-2 System Design rounds, so your code stays reliable, fast, and easy to maintain in production.
End-to-End Client Production Cutover, Load Testing & Security Sign-Off
Purpose: To understand and apply End-to-End Client Production Cutover, Load Testing & Security Sign-Off in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Deploy the live multi-tenant Java + Spring AI + React + AWS platform for client users, so your code stays reliable, fast, and easy to maintain in production.
GitHub Portfolio Audit, ≥90% AI Mock Gate & 100-Opening Placement Launch
Purpose: To understand and apply GitHub Portfolio Audit, ≥90% AI Mock Gate & 100-Opening Placement Launch in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Complete final ≥90% mock/viva verification and enter the 6-month 100-opening placement drive, so your code stays reliable, fast, and easy to maintain in production.
Spring AI Advisors, Structured Output, Tool Calling & Grounded pgvector Retrieval
Purpose: To understand and apply Spring AI Advisors, Structured Output, Tool Calling & Grounded pgvector Retrieval in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Embed audited generative AI workflows directly inside type-safe Java 21 Spring Boot services, so your code stays reliable, fast, and easy to maintain in production.
Transactional Outbox, Idempotent Kafka Consumers & Resilience4j Bulkheads/Circuit Breakers
Purpose: To understand and apply Transactional Outbox, Idempotent Kafka Consumers & Resilience4j Bulkheads/Circuit Breakers in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Guarantee financial consistency and fault isolation across distributed Java microservices, so your code stays reliable, fast, and easy to maintain in production.
React 19 + TypeScript Enterprise Frontend Integration with OAuth2/OIDC BFF Pattern
Purpose: To understand and apply React 19 + TypeScript Enterprise Frontend Integration with OAuth2/OIDC BFF Pattern in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Connect React workspaces securely to Spring Security 6 resource servers without token exposure, so your code stays reliable, fast, and easy to maintain in production.
Testcontainers CI, Multi-Stage JRE Images & Zero-Downtime AWS Cloud Rollouts
Purpose: To understand and apply Testcontainers CI, Multi-Stage JRE Images & Zero-Downtime AWS Cloud Rollouts in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Automate end-to-end verification and production deployment from GitHub Actions to AWS, so your code stays reliable, fast, and easy to maintain in production.
OpenTelemetry Distributed Tracing, Micrometer Prometheus Dashboards & JFR Profiling
Purpose: To understand and apply OpenTelemetry Distributed Tracing, Micrometer Prometheus Dashboards & JFR Profiling in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Diagnose cross-service p99 latency, connection pool exhaustion, and JVM memory pressure, so your code stays reliable, fast, and easy to maintain in production.
Full Stack Java Architect System Design, Live Coding & Placement Interview Defense
Purpose: To understand and apply Full Stack Java Architect System Design, Live Coding & Placement Interview Defense in real Java Full Stack Development & Enterprise Cloud Architecture systems — specifically: Clear product-company DSA, Spring internals, React, and cloud architecture hiring rounds, so your code stays reliable, fast, and easy to maintain in production.