Deloitte Java Microservices Consultant Interview Questions | Spring Boot | 3-6 Years 2026

🔥 Top 10 Microservices Interview Questions specifically asked at DELOITTE for 3 to 6 
Years Experienced Java Backend Developers — with full answers, 5 key points per question, 
and architecture diagrams!

Sourced from real Deloitte Java interview experiences shared by developers who went 
through the actual technical round in 2025 and 2026.

Deloitte focuses heavily on Spring Cloud, distributed system design, resilience patterns, 
and cloud deployment in their microservices technical round. This video covers exactly that.

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🕐 TIMESTAMPS
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00:00 - Introduction
01:32 - Q01: Monolithic vs Microservices Architecture
03:22 - Q02: Service Discovery with Eureka
05:19 - Q03: API Gateway — Spring Cloud Gateway
07:14 - Q04: Circuit Breaker with Resilience4j
09:13 - Q05: Feign (Sync) vs Kafka (Async) Communication
11:16 - Q06: Distributed Transactions — SAGA + Outbox Pattern
13:15 - Q07: Spring Cloud Config Server + Live Reload
15:11 - Q08: JWT Security + OAuth2 Inter-Service
17:21 - Q09: Observability — Actuator + Micrometer + Tracing
19:48 - Q10: Docker + Kubernetes Deployment
22:12 - Outro

─────────────────────────────────────────────────
📺 Company-wise Interview Series: https://www.youtube.com/playlist?list=PLSca82_CRlvpj1AdIS2k7ocP_XGpBYrUm
─────────────────────────────────────────────────
🔗 DELOITTE Java Interview                           → https://youtu.be/2TgmFe0Z2BI
🔗 DELOITTE Spring Boot Interview               →https://youtu.be/qZCU2zfrMhs
🔗 EY Java Interview                                        → https://youtu.be/7UX66a4j8ws
🔗 EPAM Interview Series                               → https://youtu.be/m6QJo6MfatQ
🔗 15 Scenario-Based Spring Boot Microservices       →https://youtu.be/W_JI3rt-_Ik

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🔔 New Java + Spring Boot + System Design video every week!
─────────────────────────────────────────────────

Topics covered in this video:
• Monolithic vs Microservices Architecture — Strangler Fig Pattern
• Service Discovery with Eureka Server and Client registration
• API Gateway — Spring Cloud Gateway, routing, BFF pattern
• Circuit Breaker — Resilience4j CLOSED/OPEN/HALF_OPEN states
• Feign declarative REST client vs Kafka async event-driven communication
• Distributed Transactions — SAGA Pattern, Outbox + Debezium CDC
• Spring Cloud Config Server — @RefreshScope, Spring Cloud Bus live reload
• JWT authentication — stateless, API Gateway validation, OAuth2 client credentials
• Spring Boot Actuator + Micrometer + Prometheus + Distributed Tracing with Zipkin
• Docker containerisation + Kubernetes Deployment, Service, Ingress, probes

#DeloitteInterview #Deloitte #JavaInterview #MicroservicesInterview #SpringBoot
#JavaDeveloper #DipDeveloper #SpringCloud #CircuitBreaker #KafkaSpringBoot
#Kubernetes #DockerJava #EurekaSpringBoot #JWTSpringSecurity #SystemDesign
#DeloitteJava #JavaBackend #SpringBootInterview #MicroservicesJava2025

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