Rajib Kharel
@rajibkharel
Java and Spring Boot developer building AI-integrated backend systems with LLM, RAG, and WhatsApp automation.
What I'm looking for
I’m a self-taught Java and Spring Boot developer with 1.5 years of professional experience building AI-integrated enterprise backend systems. I combine backend engineering with cutting-edge AI—LLM integration, multi-agent systems, WhatsApp automation, and RAG pipelines.
At Oncore Corporation, I worked as a full-stack Java developer focused on AI-powered backend delivery, including a bus reservation system with 25+ REST API endpoints. I built bilingual PDF ticket generation (English + Nepali Unicode/Devanagari), automated email delivery via SMTP, and an end-to-end WhatsApp chatbot using Gemini AI and Llama 3 (via Groq), including live context injection from PostgreSQL/MySQL and a multi-step WhatsApp session state flow.
I also designed an Intelligent ERPNext AI Agent System where users describe requirements in plain English and the system plans, generates, deploys, and tests ERPNext modules through an orchestrated multi-agent pipeline. I value production-level reliability, clear documentation, and safety-minded engineering—skills strengthened by my years working in high-stakes healthcare environments.
Experience
Work history, roles, and key accomplishments
Java Developer
Oncore Corporation
Jan 2023 - Present (3 years 4 months)
Built AI-integrated enterprise backend systems using Java and Spring Boot, including a bus reservation backend with 25+ REST API endpoints for vehicles, routes, seats, reservations, users, and feedback. Developed end-to-end WhatsApp booking with Gemini/Llama via WaAPI, live context injection from PostgreSQL/MySQL, and a Chroma-based RAG pipeline, plus bilingual (English/Nepali) PDF ticket generati
Education
Degrees, certifications, and relevant coursework
UTS Insearch (University of Technology Sydney)
Foundation of Nursing, Nursing
Completed a Foundation of Nursing program focused on evidence-based clinical practice, patient documentation, and healthcare compliance. Developed analytical and written communication skills applied to software documentation and AI evaluation work.
Availability
Location
Authorized to work in
Job categories
Skills
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