Anuj K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

🏗️ Enterprise Java & Spring Architect | GenAI & Agentic AI Engineer | System Design, Microservices, LangChain, LangGraph, Spring AI, MCP Tools, AWS/GCP I help businesses design and build intelligent, enterprise-grade systems — from scalable Java/Spring Boot microservices to next-generation AI-powered architectures. With 10+ years of hands-on coding and system design experience, I bring both the big-picture vision of an enterprise architect and the precision of a senior developer. 1. What I Deliver 1.1. Enterprise-Grade System Design – Architecture for high-performance, secure, and resilient systems, including domain-driven design (DDD), event-driven systems, and advanced microservices patterns. 1.2. Generative AI & Agentic AI Solutions – Development of LangChain & LangGraph agents, Spring AI integrations, and multi-agent MCP (Model Context Protocol) tools for enterprise automation and intelligent decision-making. 1.3. Full Lifecycle Development – From architecture design → coding → cloud deployment → CI/CD automation, I manage the entire software delivery cycle. 1.4. Enterprise Integrations – SSO, OAuth2, Kafka-based event streaming, distributed caching, API gateways, service mesh, and A2A protocol-driven agent collaboration. 1.5. Cloud-Native Scalability – Deployments on AWS/GCP, containerized with Docker & Kubernetes, optimized for resilience, auto-scaling, and cost efficiency. 2. Tech Expertise 2.1. Backend & Core Engineering – Java 22, Spring Boot 3.x, Spring Security, Spring AI, Hibernate/JPA, Reactive Programming, REST/SOAP APIs, GraphQL, gRPC, Kafka, RabbitMQ, advanced microservices (Resilience4j, Saga, CQRS, Event Sourcing). 2.2. AI & Agentic Platforms – LangChain, LangGraph (multi-agent orchestration), Spring AI, MCP Servers & MCP Tools, A2A protocols, RAG pipelines, embeddings, vector DBs (Pinecone, Weaviate, PostgreSQL+pgvector). 2.3. Frontend & User Experience – Angular (2+), TypeScript, React (micro-frontends), responsive UI/UX with HTML5, CSS3, Bootstrap, Tailwind. 2.4. Cloud & DevOps – AWS (EC2, S3, RDS, DynamoDB, EKS, Lambda), GCP (Cloud Run, BigQuery, Firestore), CI/CD (Jenkins, GitHub Actions, GitLab CI), Docker, Kubernetes, Helm, Terraform, Ansible. 2.5. Databases – Relational: PostgreSQL, MySQL, Oracle, DB2 | NoSQL: MongoDB, Cassandra, Redis | Search & Analytics: ElasticSearch, Solr. 3. Why Clients Work with Me 3.1. Architect + Coder – I design systems like an architect but also deliver clean, production-ready code. 3.2. Proven at Scale – Built platforms handling millions of requests per day with 99.99% uptime. 3.3. AI + Enterprise Blend – Rare mix of deep enterprise backend expertise with hands-on GenAI/Agentic AI experience. 3.4. Future-Proof Solutions – Focus on scalability, maintainability, and cost efficiency to grow with your business. 👉 Whether you need a robust enterprise platform, a next-gen AI-driven solution, or a full-stack architect who codes with precision, I can help you build systems that are intelligent, reliable, and built to last. Let’s turn your vision into a scalable, production-ready reality.