Rajarshi Pathak

About Rajarshi Pathak

Book Author:\"The 5G Core: Architecture and Functions Explained: A Practical Guide to 5G Core Networks, Service-Based Architecture, and Integration with BSS/OSS\"• AI Practitioner with deep domain expertise and practical experience in designing and delivering Subscription Management, Usage Monetization, and integrated OSS/BSS solutions for Mobile, Broadband, Pay TV/DTH, OTT, IPTV, and Hybrid networks.• Founder of Speaker at India Mobile Congress 2025 (IMC2025), New Delhi, showcasing a joint Cognizant-AWS solution on AI-Powered Dynamic Product Catalogue for Telecom BSS.• Built and delivered several GenAI-driven projects across Telecom and Non-Telecom domains, applying techniques like RAG, Guardrails, LangChain, LangGraph, Prompt & Context Engineering, Chunking, Vector Databases, and Agentic AI with intelligent AI Agents.• Successfully delivered Business Advisory, Consulting, Migration, and Business Analysis projects across Europe, North America, and the Asia-Pacific region, covering diverse Telecom and Digital Service Providers.• Led Solution design and delivery for Pay TV and Broadband bundled and standalone services for an APAC client.• Deep expertise in Telecom B/OSS architecture and delivery, covering Subscription Management, Monetization, Prepaid Migration, CRM, Order Management, Provisioning, Activation, Charging, Rating, Policy Control, and Billing (SaaS and On-Premise). • Strong technical foundation in 5G, VoLTE, LTE, IMS, Broadband, WiMAX, IPTV, and DTH ecosystems.Certifications:• TM Forum Certified• TOGAF 9.2• Professional Scrum Master• ISTQB• Zuora Billing Analyst• AWS Associate Solution Architect

Experience

1. Domain Architect (Senior Manager) - Cmt Solutions Architecture and Design

   Cognizant

   Feb 2024 — Present · Indore, IN

   AI Builder- Telecom BSS Consulting- Prepaid Migration- Solutions Architecture and Design- Supporting RFP/RFI- ISG Ambassador - Vibe Coding POC for Indore Center- Conducting Skills Development & Career Guidance Trainings for Engineering Students- Developed the following GenAI-driven projects leveraging LLMs and complementary AI tools-1. Scenario to Solution Generator for Enterprise/SaaS Products AI Assistant: This is developed for ORACLE (Oracle Communication, Siebel, AIA, Oracle EBS), Salesforce and ZUORA Product families. It converts business scenarios or user stories into technical blueprints and test cases, bridging the gap between strategy and execution. This project could be very helpful in responding to RFPs, supporting our project developments, and consulting practices related to Oracle, Salesforce & Zuora products. AI-Driven Blog Insights - From Thought Leadership to Impact: The project is a Python-based web app designed to fetch leadership blog content via public URLs, extract meaningful context, and generate persona-specific AI insights using AI LLM. The system empowers users ranging from CXOs to students and academic researchers to quickly digest complex blog material and receive actionable guidance tailored to their role.3. Global Enterprise Compliance AI Assistant: This project is a smart prototype built to check privacy policy web pages against global standards & principles (like GDPR, DPDP). It uses intelligent keyword and fuzzy matching for rule evaluation, logs the compliance result in Firebase Firestore, and provides a clean Streamlit-based UI with a separate dashboard view.4. Telco Focused PCC RAG AI Assistant: I have built a Telco-focused PCC (Policy Control & Charging) LLM Assistant that can clarify queries about 3G / 4G / 5G charging with 3GPP-aligned information, Share implementation steps for 3GPP-based PCC use cases & Perform protocol conversion (e.g, 4G Gy ↔ 5G Nchf).

Education

• Shri Vaishnav Institute of Technology and Science, Indore

  B.E. (Hons.), Electronics and Communication Engg.