Architecting Enterprise AI, Data & Cloud at Scale

American Express · Phoenix, AZ

AI, Data, Loyalty, Benefits, ML & API Platforms

• Set technical vision and architecture strategy across 5 interconnected enterprise platforms — loyalty, benefits, data engineering, ML, and APIs — forming a unified intelligent loyalty ecosystem.
• Architect of an enterprise AI Academy and the GenAI & Agentic AI Paved Road in partnership with central AI / CTO leadership: reference architectures, reusable components, MCP-secured tool & data access, enterprise redaction patterns, audit logging, threat modeling, and delivery guardrails for safe enterprise adoption.
• Lead multiple agentic AI initiatives in production across citation-grounded knowledge assistance, incident triage, policy-grounded decision support, rules automation, and shadow-mode decisioning — combining RAG, LLM-as-judge evaluation, deterministic validation, Kafka-triggered workflows, human-in-the-loop review, and explainable audit trails on GCP and AWS.
• Define autonomy boundaries and safety patterns for AI workflows in regulated environments.
• Architect global loyalty APIs (Golang, REST, gRPC) at ~25 ms latency powering mobile and web experiences for membership rewards and offers.
• Built ML innovation capability processing 10 TB+ daily for personalization and intelligent decisioning.
• Engineered a governed hybrid-cloud LODL platform (GCP + on-prem Hadoop) as the source-of-truth layer for loyalty analytics and ML.
• U.S. Patent + Innovation Award anomaly detection — BigQuery rules + ML models + high-performance Golang APIs.

American Express · Phoenix, AZ

Sales & Marketing Engineering — Enterprise Data Fabric & Hybrid-Cloud Integration

• Unlocked $6B+ in business value by architecting an automated data fabric serving as the intelligent core for sales and marketing — enabling launch of 45+ data-driven products in under 12 months.
• Delivered $31M annual savings through a self-service hybrid-cloud integration platform — 500+ real-time and batch data flows automated between private and public clouds with no-code patterns.
• Pioneered a fully automated, zero-touch production deployment pipeline for cloud-native applications.
• Designed the data fabric to process 1B+ records daily, central engine for low-latency databases and real-time APIs.

American Express · Phoenix, AZ

Self-Service Data Platforms & API Ecosystems

• Delivered $10M annual savings by conceiving and leading a self-service marketing data platform — reduced campaign launch cycles by 90%.
• Generated $5M additional annual savings and improved time-to-market by 90% by building an automated GraphQL API platform.
• Architected platforms for enterprise scale and resilience — billions of records daily with production-grade observability, fine-grained access controls, and consistent governance.

American Express · Phoenix, AZ

Big Data, Kafka, Event-Driven Integration & Data Automation

• Led a global engineering team establishing foundational capabilities in event-driven architecture, large-scale data processing, and data-platform automation.
• Built a Hadoop-based Data Deduplication Engine using lambda architecture (batch + real-time), saving 3,000+ manual hours annually.
• Architected a configuration-driven big-data platform on Apache Spark for ingestion, transformation, and validation of diverse batch sources.
• Engineered a template-based, Kafka-enabled event platform for bidirectional cross-cloud data synchronization.

American Express · Phoenix, AZ

Commercial / Corporate Engineering — Java, APIs, Microservices, Big Data

• Technical leadership across multiple global scrum teams — scalable Java backends, microservices, and big-data applications.
• Established REST, OpenAPI, and GraphQL specifications and reusable API design practices.
• Applied GCP, Kafka, Big Data, and NoSQL to solve complex problems and strengthen critical software infrastructure.

Tata Consultancy Services · Bangalore

Clients: Tier-1 financial-services enterprise (customer portal) & Barclays Bank (core banking)

• Lead SME for a high-traffic customer portal for card account management — architected performance enhancements delivering 60% site-performance improvement (Technical Excellence Award).
• Barclays Bank: developed Java / J2EE backend services for core banking — transaction processing, data management, and reporting — across the full SDLC.