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Engineering Excellence

Deep-dives into high-performance Java, Reactive programming, and modern API design patterns.

The Strategic Value

Focusing on the 1% of technical edge cases that define the difference between a standard app and a high-fidelity enterprise system.

Cyber Security & AI Masterclass

Advanced Engineering Guide to Zero Trust, AI-Driven Threats, and Modern AppSec Hardening

SecurityAIZero TrustCompliance

Apache JMeter

Load testing, thread groups, samplers, assertions, distributed testing, CI/CD integration

JMeterLoad TestingPerformance

Spring Boot + MQTT 3.x

Solving shared subscriptions, backpressure & slow subscribers with RabbitMQ bridge, MongoDB, resilience patterns & scaling

Spring BootMQTTRabbitMQMongoDB

Spring Boot Metrics with Micrometer

Counters, gauges, timers, distributions, Prometheus integration, AOP config, PromQL examples

MicrometerSpring BootPrometheus

Spring Integration Cheatsheet

Annotation-based EIP: @ServiceActivator, @Transformer, @Filter, @Router, @Splitter, @Aggregator, @Gateway, channels, error handling, testing & real-world patterns

Spring IntegrationEIPJavaSpring Boot

Project Reactor + WebClient + Reactive MongoDB

Mono, Flux, operators, error handling, backpressure, WebClient, reactive MongoDB, testing with StepVerifier, production patterns & pitfalls

ReactorWebClientMongoDBSpring Boot

Spring Boot 3.x Cheatsheet

Setup, REST, DI, JPA, Security, Testing, Actuator, Logging, Deployment — 38 annotations reference

Spring BootJavaJPASecurity

AI Prompting Cheatsheet

Prompt engineering techniques, system prompts, RAG patterns, agent design, model-specific tips

AILLMPromptingRAG

vLLM Serving Cheatsheet

Installation, single/multi-GPU, multi-node Ray clusters, quantization, API server, performance tuning, production deployment

vLLMLLMMulti-GPURay