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mallepalli himasagar

@mallepallihimasagar

Message

I build enterprise GenAI agent infrastructure, RAG systems, and scalable AI backends.

India

Message

At Pega, I build Autopilot’s agentic AI infrastructure, powering multi-turn experiences at scale across the Infinity platform. I led multi-provider LLM orchestration across OpenAI, Amazon Bedrock, and Google Vertex AI, while reducing per-conversation token spend by 30%.

Previously at Tata Digital, I launched a GPT-driven Gift Assistant Chatbot that increased user interactions by 25% and lifted daily orders by 5–10%. I’ve also built RAG, evaluation, conversational AI, and backend systems with Python, Java, FastAPI, LangChain, PyTorch, and cloud AI services.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer - AI/ML and Generative AI

Current

Pega Systems

Jun 2024 - Present (2 years 3 months)

Core backend contributor to Pega Autopilot, an agentic AI framework now GA across the Pega Infinity platform. Led multi-provider model orchestration, built agent architecture and evaluation infrastructure, and engineered RAG pipelines.

Python Java fastAPI OpenAI Amazon Bedrock Google Vertex AI RAG DeepEval Gradle CI CD DocumentAI OCR LLM As Judge Token Usage Tracking Docker Kubernetes

Senior Digital Engineer - Gen AI

Tata Digital Pvt. Ltd.

Aug 2021 - May 2024 (2 years 9 months)

Spearheaded development and launch of a Gift Assistant Chatbot using LangChain, increasing user interactions by 25% and contributing a 5-10% lift in daily orders. Implemented RAG and integrated Qdrant for semantic product search.

Lang Chain RAG Qdrant fastAPI Databricks GPT Python

Research Intern - R&D

Siemens Technology and Services Pvt. Ltd.

May 2020 - Jul 2020 (2 months)

Developed a graph-to-graph translation model using PyTorch and Knowledge Graphs for automated code optimization via hierarchical decoding.

PyTorch Knowledge Graphs Machine Learning

Digital Engineer - AI/ML & Conversational AI

Tata Digital Pvt. Ltd.

Developed and optimized a customer support chatbot using Microsoft Bot Framework and Azure, creating a custom orchestrator for query classification. Managed customer-support information across 13 brands.

Microsoft Bot Framework Azure PyTorch Hugging Face NLP Python

Education

Degrees, certifications, and relevant coursework

Indian Institute of Technology Madras

M.Tech, Computer Science and Engineering

2019 - 2021

Activities and societies: Served as Teaching Assistant for Deep Learning, Linear Algebra, and Discrete Mathematics courses.

Pursued M.Tech in Computer Science and Engineering with focus on Deep Learning, Computer Vision, NLP, Machine Learning, and Linear Algebra.

National Institute of Technology Andhra Pradesh

B.Tech, Computer Science and Engineering

2015 - 2019

Completed B.Tech in Computer Science and Engineering with relevant coursework in Data Structures, Algorithms, Machine Learning, Data Mining, and Information Retrieval.