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Jestin Mathew

Lead AI Platform Engineer @ Target 🎯 | Building & Scaling GenAI RAG Platforms & AI Agents | MLOps & Backend Architecture

Greater Bengaluru Area

9+ years of work experience

Target
Aug 20251 yr 1 moPresent

Bengaluru, Karnataka, India

- Building Target's Gen AI RAG Platform for Application and Data Science Teams by enabling different vector stores for storage/retrieval pipelines and various connectors for data sources.
Target
Mar 20223 yrs 6 mosAug 2025

Hybrid

- Built Centralized Offline and Online Feature Stores for Data Science teams to store and quickly access all the features for model training pipelines and inferences as a part of Target's MLOps Platform. - Built Internal Web App to replace Microstation CAD used for Merchandising categories over Offline Stores plans eliminating $400,000 annual licensing cost and 1.6M CAD files with 60% efficiency gains per store, saving approximately 21,000 person-hours through full replacement.
Philips Innovation Campus, Bangalore
Feb 20211 yr 1 moFeb 2022

Bangalore Urban, Karnataka, India

Contributed to centralized and core microservices for Auditing, Notification, and S3 integration services supporting APIs across the Philips' health continuum.
HCL Technologies
May 20209 mosJan 2021

Built Reactive Java microservices using BigQuery and Commerce Tools for client Ulta Beauty. Extended Drools Rule Engine with business rule-driven data persistence logic. Enabled async data persistence using GCP Pub/Sub for event-driven architecture. Migrated Swagger documentation from manual to code-generated specs, improving the API developer experience.
Tata Consultancy Services
Mar 20173 yrs 2 mosApr 2020

Lucknow, Uttar Pradesh, India

Delivered multiple features for Test Center Management (TCM) in TCS ION used by national exams (SSC, RRB). Created frontend on JSP, AngularJS for low-latency UI serving, and used Java for backend. Built TC Availability Calculator using AngularJS for real-time availability and booking capacity of Test Centers. Enhanced JSP tabs for mapping Test Centers to LANs and Rooms.

Jestin’s AI Stack

claude
claude
gemini
gemini
github copilot
github copilot
langchain
langchain
opencode
opencode
ChatGPT
ChatGPT

Education

BABU BANARASI DAS INSTITUTE OF TECHNOLOGY AND MANAGEMENT

Bachelor of Technology, Electrical, Electronics and Communications Engineering

BABU BANARASI DAS INSTITUTE OF TECHNOLOGY AND MANAGEMENT

20124 yrs2016
Dr. A.P.J. Abdul Kalam Technical University

Bachelor of Technology, Electrical, Electronics and Communications Engineering

Dr. A.P.J. Abdul Kalam Technical University

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Headline

Lead AI Platform Engineer @ Target 🎯 | Building & Scaling GenAI RAG Platforms & AI Agents | MLOps & Backend Architecture

About

As a Lead Engineer, I contribute to Target's Generative AI RAG Platform which helps Application and Data Science Teams with storage and retrieval pipelines . I spearheaded various data source connectors for seamless ingestion of data into various vector stores. I also pioneered Target's Machine Learning Operations Platform by building Offline and Online Feature Stores for Data Science Teams. I work with a team of talented developers to design, develop, and deploy scalable and reliable Microservices and SDKs using Java, Kotlin, Python , Spring Boot, FASTAPI, Docker, and other cutting-edge technologies. I contribute and support the backend operations, ensuring high performance, security, and user satisfaction. I have over nine years of experience in software engineering and have worked in multiple domains and contributed to multiple projects involving distributed systems, design patterns, and cloud computing. I am passionate about learning new skills and technologies, and I constantly seek opportunities to improve my knowledge and expertise. My goal is to deliver high-quality solutions that meet the needs and expectations of the clients and the users.

Location

Greater Bengaluru Area

AI stack

claude

gemini

github copilot

langchain

opencode

ChatGPT

Work experience

Lead Engineer at Target, Aug 2025 - Present · 1 yr 1 mo, Bengaluru, Karnataka, India, - Building Target's Gen AI RAG Platform for Application and Data Science Teams by enabling different vector stores for storage/retrieval pipelines and various connectors for data sources.

Senior Engineer at Target, Mar 2022 - Aug 2025 · 3 yrs 6 mos, Hybrid, - Built Centralized Offline and Online Feature Stores for Data Science teams to store and quickly access all the features for model training pipelines and inferences as a part of Target's MLOps Platform. - Built Internal Web App to replace Microstation CAD used for Merchandising categories over Offline Stores plans eliminating $400,000 annual licensing cost and 1.6M CAD files with 60% efficiency gains per store, saving approximately 21,000 person-hours through full replacement.

Software Engineer II at Philips Innovation Campus, Bangalore, Feb 2021 - Feb 2022 · 1 yr 1 mo, Bangalore Urban, Karnataka, India, Contributed to centralized and core microservices for Auditing, Notification, and S3 integration services supporting APIs across the Philips' health continuum.

Senior Software Engineer at HCL Technologies, May 2020 - Jan 2021 · 9 mos, Built Reactive Java microservices using BigQuery and Commerce Tools for client Ulta Beauty. Extended Drools Rule Engine with business rule-driven data persistence logic. Enabled async data persistence using GCP Pub/Sub for event-driven architecture. Migrated Swagger documentation from manual to code-generated specs, improving the API developer experience.

System Engineer at Tata Consultancy Services, Mar 2017 - Apr 2020 · 3 yrs 2 mos, Lucknow, Uttar Pradesh, India, Delivered multiple features for Test Center Management (TCM) in TCS ION used by national exams (SSC, RRB). Created frontend on JSP, AngularJS for low-latency UI serving, and used Java for backend. Built TC Availability Calculator using AngularJS for real-time availability and booking capacity of Test Centers. Enhanced JSP tabs for mapping Test Centers to LANs and Rooms.

Education

Bachelor of Technology, Electrical, Electronics and Communications Engineering, BABU BANARASI DAS INSTITUTE OF TECHNOLOGY AND MANAGEMENT

Bachelor of Technology, Electrical, Electronics and Communications Engineering, Dr. A.P.J. Abdul Kalam Technical University