Summary
Overview
Work History
Education
Skills
Certification
Publications
Websites
Languages
Timeline
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SABARI MUTHEESWARI MOHANRAJ (ISHA)

Tamil Nadu

Summary

Machine Learning Engineer with 3+ years of expertise in agentic architectures, multi-agent systems, and Generative AI. Proficient in LangGraph, advanced prompt engineering, code-based RAG pipelines, LLM evaluation, and multimodal LLM integration. Former Cloud Infrastructure Engineer at Discover Bank, skilled in AWS operations and data optimization.

Overview

4
4
years of professional experience
2
2
Certification

Work History

Generative AI & Machine Learning Engineer

Cognizant
02.2025 - Current
  • Multi-Agent Log Management System: Developed a multi-agent system for automated log classification, remediation, planning using specialized agents with semantic, episodic, and procedural memory. Utilized NeonDB (pgvector), LangGraph for in-memory storage, integrating dynamic tool selection, web data retrieval, and adaptive memory updates.
  • Responsible AI Chatbot Built backend for a Responsible AI chatbot using LangGraph, enabling dynamic multi-turn conversations, response summarization, compliance-aligned advisory. Designed structured prompt flows to extract compliance metrics based on legal context and user input. Integrated Neo4j with Cypher to enhance traceability and graph-based reasoning.
    A2A Protocol : Designed and implemented a system integrating diverse agent frameworks (CrewAI, LangGraph, LlamaIndex) using Google’s Agent-to-Agent Protocol for inter-agent communication. Consolidated multi-agent responses and presented results via UI.
  • Multimodal RAG Backend for MTC Generation : Built a modular embedding pipeline for text, image, audio, video using CLIP, CLAP, all-MiniLM, and Vertex AI, with ChromaDB, Qdrant for scalable retrieval. Developed RAG backend for unified vector search, enabling two test case generation modes: one based on transcribed embeddings, another using direct multimodal retrieval followed by LLM transcription and generation.
  • LLM Evaluation & Testing : Developed prompts, test cases to assess AI Copilot LLM, identifying failures, edge cases; supported backend output, metric validation.

Cloud Ops and Infrastructure Engineer

Cognizant
07.2023 - 01.2025
  • Designed Tableau dashboards to monitor application, service performance, ensuring uptime, early failure detection; debugged Python code, scheduled executions with Lambda, Airflow.
  • Upgraded Artifactory images to fix backend Air9 issues and maintain seamless pod operations; integrated monitoring tools like DataDog, applied security patches, resolved vulnerabilities, automated ETL processes, collaborated with data teams to develop business-aligned models.

Cloud Ops and Infrastructure Engineer Trainee

Cognizant
07.2022 - 07.2023
  • Built tables and views based on user requirements and granted access based on respective designations and roles, ensuring that the warehouses and environment are used optimally.
  • Fabricating EC2 instances, establishing and sustaining alarms for various services, altering IAM roles, managing RDS databases, lambdas, and developing procedural documentation.
  • Designed schemas and managed ETL pipelines for seamless data migration to Snowflake, utilizing Time Travel and Fail-Safe for data recovery and historical access.

Big Data Intern

Cognizant
01.2022 - 06.2022
  • Developed a comprehensive student reporting system by researching and implementing an appropriate data warehouse architecture. Successfully tested the system with 1,800 data entries. Enhanced data retrieval efficiency by optimizing query design after integrating data into Apache Hive on Ubuntu.

Education

Bachelor of Computer Science and Engineering -

SRM Easwari Engineering College, Anna University
05.2022

Skills

Python Machine Learning Deep Learning Neural Networks NLP CV Data Science Statistics LLM Fine-tuning Prompt Engineering Agentic Architecture A2A Protocol MCP OpenAI Google Gemini Crew AI LangGraph LlamaIndex TensorFlow Google Vertex AI Google ADK VectorDB Neo4j AWS GCP Docker Terraform Jenkins CI/CD Ansible OCP Data Engineering ETL Airflow Data Mining Data Warehousing Big Data Hadoop Snowflake MySQL PostgresSQL Tableau Data Visualization Java C R-Studio JIRA UI/UX Figma Datadog

Certification

  • AWS Solution Architect Associate - CO3
  • Google Associate Cloud Engineer

Publications

Synoptic Survey on Personality Prediction System using MBTI

IEEE · Sep 19, 2022 3rd International Conference on Electronics and Sustainable Communication Systems (ICESC) - DOI : https://doi.org/10.1109/ICESC54411.2022.9885634

Languages

English - Proficient, Tamil - Native, French - Intermediate, German - Beginner

Timeline

Generative AI & Machine Learning Engineer

Cognizant
02.2025 - Current

Cloud Ops and Infrastructure Engineer

Cognizant
07.2023 - 01.2025

Cloud Ops and Infrastructure Engineer Trainee

Cognizant
07.2022 - 07.2023

Big Data Intern

Cognizant
01.2022 - 06.2022

Bachelor of Computer Science and Engineering -

SRM Easwari Engineering College, Anna University

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SABARI MUTHEESWARI MOHANRAJ (ISHA)