Java Architecture
Java and Spring Boot application architecture for enterprise platforms — API design, modularity and production readiness.
Read notes
Architecture
Software architecture notes
Practical notes from enterprise delivery — Java platforms, microservices, cloud-native systems, Kubernetes, event-driven design with Kafka, applied AI and reference diagrams. Written by Sanjeev Kumar, Application Architect.
How these pages are organised
Each topic below maps to work already visible in the portfolio, case studies and resume. The aim is decision clarity — boundaries, guarantees, operability — not a catalogue of buzzwords.
Microservices Architecture
Microservices architecture patterns used on real programmes: boundaries, resilience, strangler-fig and operational ownership.
Read notesCloud Architecture
Cloud-native architecture on GCP and AWS — networking, Kubernetes, platform controls and delivery pipelines.
Read notesKubernetes Architecture
Kubernetes for enterprise Java/Spring services — probes, resources, release safety and platform controls on GKE and hybrid estates.
Read notesEvent-Driven & Kafka Architecture
Event-driven architecture with Apache Kafka — domain events, outbox, exactly-once posting, saga and cross-service observability.
Read notesAI Architecture
Enterprise AI architecture: RAG, LLM gateways, agents, security, observability, cost control and governance grounded in delivery practice.
Read notesRAG Architecture
Retrieval-augmented generation architecture for enterprise knowledge — grounding, evaluation, citations and guardrails.
Read notesArchitecture Diagrams
Reference architecture diagrams — microservices, Kafka/event-driven, Kubernetes, cloud, RAG, agents, LLM gateways and enterprise SaaS shapes.
Read notesRelated writing & case studies
- Financial transaction platform modernisation — Kafka, strangler-fig, exactly-once posting
- Applied RAG & agentic AI in enterprise delivery
- Portfolio — broader engagement gallery
- Architecture writing
- Contact