Dhiraj S.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.

I'm an AI Solution Architect with hands on developer with 12+ years of experience designing and delivering complex, production-grade software — with deep specialization in agentic AI systems, RAG pipelines, and LLM orchestration frameworks. AI & LLM Expertise: I build production-ready AI agents using LangGraph, LangChain, LlamaIndex, and smolagents (Hugging Face), backed by RAG architectures and vector store technologies. My work spans voice AI (Speech-to-Text, Text-to-Speech), multi-model orchestration via LiteLLM, and integration with OpenAI, Vertex AI, and Gemini models. I've architected knowledge ingestion pipelines that ground AI responses strictly in provided documents — including large-scale document sets (15MB+) — without sacrificing response speed, along with observability frameworks (Langfuse) and custom guardrails against prompt injection attacks. Enterprise-Scale Delivery: I've architected and delivered systems processing 50,000+ live transactions in production, including a multi-agent contact centre platform with intent classification and specialized agent routing, and an enterprise email automation platform using event-driven architecture (Google PubSub) with RAG-grounded responses. I also built Capital Market and financial market applications from scratch using REST APIs, achieving significant performance improvements — plus microservices on AWS and GCP secured with OAuth2, JWT, and Hashicorp Vault. Full-Stack & Cloud Native: My technical range covers Java, Spring Boot, Spring AI, REST/GraphQL APIs, Flutter, and Firebase, deployed on cloud-native infrastructure (Kubernetes, Docker, Helm) across AWS and GCP. I bring strong DevOps practices (CI/CD, GitLab, Jenkins) and have introduced software development methodologies and best practices to teams I've worked with, following Agile/Scrum principles throughout. Certifications: CKAD (Certified Kubernetes Application Developer), AWS Certified AI Practitioner, TOGAF Certified Whether you need a production RAG system, an AI agent platform, or enterprise-grade backend architecture, I bring the technical depth and delivery discipline to take it from concept to production — reliably, securely, and at scale.