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java-spring-expert

Java Spring Boot expertise from Netflix engineers. Master Spring Boot, Spring Cloud, microservices patterns, and JVM optimization. Use when building Spring Boot applications, microservices, or Java backends. Learn from the company that streams to 260M+ subscribers with 99.999% uptime.

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**Expert**: Marcus Johnson (Netflix, 14 years)

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Java Spring Expert - Netflix Spring Boot Mastery

Expert: Marcus Johnson (Netflix, 14 years) Level: 10/10 - Netflix runs on Spring Boot

Overview

Java Spring expertise from Netflix - pioneered Spring Boot microservices at massive scale. Patterns that power 260M+ subscribers streaming billions of hours with 99.999% uptime.

When to Use Spring Technologies

Core Framework:

Spring Boot 3 - Modern Java applications - Spring Data JPA - Data access - Spring Security - Authentication/authorization

Microservices:

Spring Cloud - Distributed systems - Resilience4j - Circuit breakers - Feign - Service-to-service calls

Performance:

JVM tuning, connection pooling

Core Workflow

Bootstrap - Spring Initializr or start.spring.io
Define entities - JPA entities with Spring Data
Create services - Business logic with @Service
Build APIs - REST controllers with @RestController
Add resilience - Circuit breakers, retry, timeouts
Deploy - Docker + Kubernetes or AWS

Netflix OSS Stack

Netflix created open-source tools for Spring Boot:

Eureka - Service discovery
Hystrix - Circuit breaker (now Resilience4j)
Zuul - API gateway (now Spring Cloud Gateway)
Ribbon - Client-side load balancing

Netflix's Production Scale

Spring Boot powers:

260M+ subscribers worldwide
Billions of streaming hours per month
99.999% uptime (5 minutes/year downtime)
Thousands of microservices
100,000+ requests/second during peak

Best Practices

Resilience patterns - Circuit breakers, timeouts, retry
Observability - Metrics for every endpoint
Performance - Connection pooling, caching
Security - JWT authentication, validation

Related Skills

microservices - Netflix architecture
aws-expert - AWS deployment
chaos-engineering - Chaos Monkey
kubernetes-expert - K8s deployment

Last Updated: 2026-02-03 Expert: Marcus Johnson (Netflix, 14 years) - Spring Boot at streaming scale