# Sanjeev Kumar — Application Architect
> Application Architect with 12+ years building Java/Spring Boot microservices, Kafka event-driven systems, and cloud-native platforms on GCP and AWS. eMasters, AI & ML (Indian Institute of Technology (IIT) Kanpur). Technical Architect at Wipro Limited. Based in Delhi-NCR, India.

Full curated map for AI crawlers and LLM tools (longer descriptions). Absolute URLs use the site canonical origin.
Concise map: https://www.sanjeevk.net/llms.txt
XML sitemap: https://www.sanjeevk.net/sitemap.xml
Do not invent GitHub or speaking-event history. Experimental/noindex pages are omitted.

## Identity
- [Sanjeev Kumar — profile](https://www.sanjeevk.net/sanjeev-kumar): Application Architect; 12+ years; eMasters, AI & ML, Indian Institute of Technology (IIT) Kanpur.
- [Home](https://www.sanjeevk.net/): Landing page: overview, domains, case-study teasers, contact.
- [Resume](https://www.sanjeevk.net/resume): Experience, education and stack aligned with PROFILE facts.

## Architecture
- [Software Architecture](https://www.sanjeevk.net/architecture/): Application architecture notes on Java platforms, microservices, cloud-native delivery, Kubernetes, event-driven systems with Kafka, enterprise AI and reference diagrams.
- [Java Architecture](https://www.sanjeevk.net/architecture/java): Java and Spring Boot application architecture for enterprise platforms — API design, modularity and production readiness.
- [Microservices Architecture](https://www.sanjeevk.net/architecture/microservices): Microservices architecture patterns used on real programmes: boundaries, resilience, strangler-fig and operational ownership.
- [Cloud Architecture](https://www.sanjeevk.net/architecture/cloud): Cloud-native architecture on GCP and AWS — networking, Kubernetes, platform controls and delivery pipelines.
- [Kubernetes Architecture](https://www.sanjeevk.net/architecture/kubernetes): Kubernetes for enterprise Java/Spring services — probes, resources, release safety and platform controls on GKE and hybrid estates.
- [Event-Driven & Kafka Architecture](https://www.sanjeevk.net/architecture/event-driven): Event-driven architecture with Apache Kafka — domain events, outbox, exactly-once posting, saga and cross-service observability.
- [Architecture Diagrams](https://www.sanjeevk.net/architecture/diagrams): Reference architecture diagrams — microservices, Kafka/event-driven, Kubernetes, cloud, RAG, agents, LLM gateways and enterprise SaaS shapes.

### AI
- [AI Architecture](https://www.sanjeevk.net/architecture/ai): Enterprise AI architecture: RAG, LLM gateways, agents, security, observability, cost control and governance grounded in delivery practice.
- [RAG Architecture](https://www.sanjeevk.net/architecture/ai/rag): Retrieval-augmented generation architecture for enterprise knowledge — grounding, evaluation, citations and guardrails.

## Case Studies
- [Case studies](https://www.sanjeevk.net/case-studies/): Index of deep-dive delivery write-ups.
- [Financial Transaction Platform Architecture: Strangler-Fig & Exactly-Once Posting](https://www.sanjeevk.net/case-studies/financial-transaction-platform-modernization): Strangler-fig migration behind an API façade, with Kafka-backed exactly-once posting guarantees.
- [Enterprise RAG & Agentic AI Architecture for Delivery Acceleration](https://www.sanjeevk.net/case-studies/agentic-ai-rag-enterprise-delivery): Grounding LLMs in HLD/LLD, ADRs and API contracts so delivery assistance stays cited and auditable.

## Portfolio
- [Portfolio](https://www.sanjeevk.net/portfolio): Broader engagement gallery across banking, healthcare, cloud and AI.

## Writing
- [Writing / blog](https://www.sanjeevk.net/blog/): Architecture and engineering articles index.

## Speaking
- [Speaking](https://www.sanjeevk.net/speaking): Topics available for talks (no invented event history).

## Resources
- [Resources](https://www.sanjeevk.net/resources): Checklists and templates for architecture practice.

## Connect
- [Contact](https://www.sanjeevk.net/#contact): Homepage contact section; site email info@sanjeevk.net.
- [LinkedIn](https://www.linkedin.com/in/sanjugen): linkedin.com/in/sanjugen — professional updates.

## Optional
- [Building Scalable Web Applications: Lessons from 12+ Years in Production](https://www.sanjeevk.net/blog/post/building-scalable-web-applications): Production-tested scaling decisions: database bottlenecks, caching, horizontal growth, and when microservices help versus hurt.
- [Designing for User Experience: Beyond Pretty Interfaces](https://www.sanjeevk.net/blog/post/designing-for-user-experience): UX as product architecture: research, information architecture and flows that reduce friction in real enterprise tools.
- [System Architecture Best Practices: Building Maintainable Software](https://www.sanjeevk.net/blog/post/system-architecture-best-practices): Architecture practices that keep systems changeable: separation of concerns, boundaries, evolutionary design and operational feedback.
- [React Performance Optimization: Real-World Techniques That Work](https://www.sanjeevk.net/blog/post/react-performance-optimization): Production React performance: render model, memoization, code splitting and measuring what actually moves the needle.
- [Cloud Architecture Patterns: Building Scalable Systems on AWS, Azure, and GCP](https://www.sanjeevk.net/blog/post/cloud-architecture-patterns): Cloud-native patterns I use on AWS, Azure and GCP: serverless boundaries, containers, autoscaling, multi-cloud tradeoffs and cost control.
- [Microservices Design Patterns: Building Distributed Systems That Work](https://www.sanjeevk.net/blog/post/microservices-design-patterns): Patterns that keep microservices maintainable: API gateway, circuit breaker, saga, database-per-service and event-driven boundaries.
- [Privacy policy](https://www.sanjeevk.net/privacy-policy): Site privacy policy.
- [Terms of service](https://www.sanjeevk.net/terms-conditions): Site terms.