Enterprise AI Architecture · Agentic Systems · Transformation Leadership

Architecting AI that works in the enterprise.

I'm Arun Bhagavath Varatharajan, an Enterprise AI & Agentic AI Solution Architect with 16+ years of experience connecting modern AI engineering with secure, scalable business transformation.

16+Years in technology
60+Bots in CoE portfolio
40+Enterprise processes
35%+Reported productivity uplift

Technology depth.
Transformation perspective.

I design enterprise AI solutions across healthcare, pharmaceutical operations, financial services and investment management. My work spans retrieval-augmented generation, intelligent document processing, agentic workflows, integration architecture, human oversight and responsible deployment.

Previously, as Associate Director of an Intelligent Automation Center of Excellence in Singapore, I helped scale a portfolio of more than 60 bots across 40+ processes, with reported annual savings of over 400,000 person-hours.

My approach is practical: start with business outcomes, establish reliable architecture, make decisions auditable, and design for real operational constraints.

Architecture in context

Representative, high-level case studies based on professional experience. Descriptions are intentionally anonymized and exclude confidential implementation details.

CASE STUDY / 01

Healthcare AI intake & decision support

Challenge: Complex fax, email and claims workflows require consistent extraction, routing and review.

Approach: Combined document classification, RAG-based retrieval, structured LLM outputs, deterministic decision rules and confidence-based human escalation.

Architecture focus: Traceability, exception handling and API-first enterprise integration.

Azure AILangChain / RAGIDPHITL
CASE STUDY / 02

Specialty pharmacy & PACCA AI integration

Challenge: Document-heavy operational processes need structured information and human verification.

Approach: Contributed to integration architecture connecting AI-assisted extraction, enterprise workflows and Power Automate-based review.

Architecture focus: Modular processing, validation and auditable exceptions. Integration work is described as an ongoing initiative.

PACCA AIAzure Document IntelligencePower Automate
CASE STUDY / 03

Regulated pharmaceutical knowledge AI

Challenge: R&D and quality teams need access to approved knowledge without sacrificing control.

Approach: Designed document-grounded retrieval and conversational workflows integrated with enterprise platforms.

Architecture focus: Approved-source grounding, authentication, auditability and GxP-aware design.

Azure AI FoundryCopilot StudioVeeva VaultLIMS

From AI prototypes to enterprise architecture

AI Engineering & Architecture

  • GenAI, LLM application architecture and RAG
  • Agentic workflow design and tool orchestration
  • Azure AI Foundry, Azure OpenAI and LangChain
  • Document intelligence, extraction and validation
  • Python, REST APIs, SQL and enterprise integration

Enterprise Delivery & Governance

  • Human-in-the-loop and confidence-based controls
  • Secure workflows, traceability and audit readiness
  • UiPath, Power Automate and Copilot Studio
  • Solution standards and transformation roadmaps
  • Stakeholder alignment and cross-functional leadership

Leadership built on delivery

Enterprise AI & Agentic AI Solution Architect

MetierTech · BCBS programs & Senderra · 2025–Present

Healthcare AI intake, RAG engineering, claims decision support, PACCA AI integration and enterprise workflow orchestration.

AI Architect — Intelligent Automation & Digital Transformation

MetierTech · Incyte · 2023–2025

Regulated pharmaceutical AI solutions, Copilot Studio experiences, approved-content retrieval and integration with Veeva Vault and Labware LIMS.

Associate Director — Intelligent Automation CoE

Fullerton Fund Management · Singapore · 2020–2023

Enterprise automation strategy, governance and portfolio delivery. Led a multi-year roadmap and scaled the CoE across investment-management functions.

Technology Manager & RPA Technical Architect

Innowise / NTT DATA · Singapore · 2018–2020

Solution architecture, delivery standards, technical team guidance and automation program planning.

RPA Research & QA Lead / Software Test Engineer

Synechron / Wipro · India · 2010–2018

Banking technology, software quality engineering, data validation and reusable automation frameworks.

Continuous learning

AWS Certified Solutions Architect – Professional

Cloud architecture credential · 2023

AI Prompt Engineering & RAG

Udemy course completion · 2026

UiPath Solution Architect

Enterprise automation architecture credential · 2017

Education: Master’s in Data Science & Artificial Intelligence, Gannon University · Bachelor’s in Information Technology, Kongu Engineering College.

Let's build AI with measurable business value.

Open to conversations about enterprise AI architecture, agentic systems and technology transformation leadership.