| Scalability | Designed for production fraud detection pipeline |
| AI/ML | LLM-based pattern recognition; UMAP dimensional reduction; vector similarity matching; prompt engineering |
| Cost Effectiveness | Automated fraud detection reducing analyst workload |
Systems Portfolio
A chronological journey through 22+ years of building scalable systems
2
Granted Patents
1
Patent Pending
3
Publications
1
Open Source
99.9%
Availability
100%
AI Adoption
1. LLM-Based Fraud Detection POC
2025/2026 | Expedia Group (EFR)
Designed and executed proof-of-concept using LLMs to identify fraud in booking transactions by learning from historical analyst decisions.
2. Multi-Agent LLM System (Strands SDK)
2025 | Expedia Group (EFR)
Built multi-agent LLM POC demonstrating cost-effective reasoning-based problem decomposition using OpenAI GPT (reasoning) and Ollama local models (task execution) with tool/MCP support.
| Scalability | Modular agent architecture for various use cases |
| AI/ML | Multi-agent orchestration; reasoning + execution separation; MCP/tool integration |
| Cost Effectiveness | Hybrid cloud/local model approach reducing API costs; demonstrated to org-wide PE community |
3. EGTNL MCP Server
2025 | Expedia Group (BTT)
Built MCP (Model Context Protocol) server enabling AI assistants to query live experiment data directly in VS Code through natural language queries.
| Scalability | Dockerized for distribution across engineering teams |
| AI/ML | MCP integration with GitHub Copilot; LLM tool-calls |
| Reliability | Real-time experiment state queries during development |
| Cost Effectiveness | 80% reduction in context-switching time; 3x faster debugging |
4. STAR - GenAI RCA Tool
2025 | Expedia Group
Invented System Telemetry Analyzer (STAR), a GenAI-powered root cause analysis tool that automates incident data gathering, correlation, and generates actionable recommendations.
| Scalability | Now used across Expedia Group for incident analysis |
| AI/ML | GenAI/LLM-powered analysis; automated correlation; natural language recommendations |
| Reliability | Significantly reduced MTTK (Mean Time to Know) during incidents |
| Cost Effectiveness | Automated analysis replacing hours of manual investigation |
5. Clicker - Traveler Telemetry Platform
2022-2025 | Expedia Group (REO)
Built traveler clickstream telemetry platform processing hundreds of millions of Kafka events into Datadog aggregated views. Optimized Kubernetes autoscaling and led cross-team onboarding enabling customer-facing SLOs.
| Scalability | Processes 100s of millions of Kafka events; K8s autoscaling optimization |
| Reliability | Enabled customer-facing SLOs for Hotels, Vacation Rentals, and Flights |
| Cost Effectiveness | Formalized Tier-2 SLA (24h RTO); comprehensive documentation |
6. Traffic Prediction Models
2021-2023 | Expedia Group (REO)
Developed traffic prediction models using linear regression and Fourier series for peak traffic forecasting across three major brands (Expedia, Hotels.com, Vrbo).
| Scalability | Predictions for 3 major brands handling billions of requests |
| AI/ML | Linear regression + Fourier series for seasonality; 95% accuracy (+/-5% error) |
| Reliability | Model continued in use; 100% accuracy for Vrbo PCT in 2024 |
| Cost Effectiveness | Precise capacity planning avoiding over-provisioning |
7. Jarviz - Application Coupling Analyzer
2019-2020 | Expedia Group
Created open-source tool for analyzing application couplings and dependencies.
| Scalability | Analyzes large codebases with complex dependency graphs |
| Reliability | Identifies coupling issues before they cause production problems |
| Cost Effectiveness | Open-source; reduces technical debt discovery time |
8. Booking Value Forecast ML Model
2018 | HomeAway/Vrbo
Won first place in company-wide Kaggle competition for Booking Value Forecast, building a predictive model to estimate booking values using historical transaction data.
| Scalability | Competition-winning model for booking value estimation |
| AI/ML | Random Forest algorithm; feature engineering on booking data; predictive analytics |
| Cost Effectiveness | Improved booking value estimation for business planning |
9. Vrbo Checkout Service
2016-2019 | Vrbo/Expedia Group, Austin, TX
Led design and development of cloud-ready checkout microservice handling traveler transactions for web, mobile, and external (Expedia) point-of-sales during cloud migration.
| Scalability | Multi-brand checkout serving Vrbo, Expedia, web, and mobile channels |
| Reliability | Cloud-native architecture with resilient transaction handling |
| Cost Effectiveness | Cloud migration reducing infrastructure costs; unified checkout across brands |
10. Solr-Based Fast Search API
2014-2016 | HomeAway, Austin, TX
Created Solr-based fast search API for internal applications enabling sub-50ms lookups across millions of listed properties.
| Scalability | Sub-50ms latency across millions of property listings |
| Reliability | Clustered Solr with high availability |
| Cost Effectiveness | Fast internal lookups improving developer productivity |
11. Hadoop HBase Supplier Analytics API
2013-2016 | HomeAway, Austin, TX
Designed scalable supplier analytics reporting API backed by Hadoop HBase, enabling real-time insights for property managers.
| Scalability | Big data architecture handling billions of data points |
| Reliability | Distributed HBase cluster with replication |
| Cost Effectiveness | Real-time insights enabling data-driven property management decisions |
12. Partner Dashboard Platform
2013-2016 | HomeAway, Austin, TX
Led team building scalable web-app solutions for small-scale property owners and large-scale property managers.
| Scalability | Served thousands of suppliers managing millions of property listings |
| Reliability | Production-critical platform for property manager operations |
| Cost Effectiveness | Self-service platform reducing support overhead |
13. JavaScript Ad Delivery Framework
2011-2013 | Bazaarvoice, Austin, TX
Built zero-config JavaScript framework for embedding UGC-powered ads on publisher websites.
| Scalability | Deployed across thousands of publisher sites |
| AI/ML | Integrated with ML-generated ad snippets |
| Reliability | Client-side resilience with fallback mechanisms |
| Cost Effectiveness | Zero-config deployment reducing integration costs |
14. UGC Ad Snippet REST API
2009-2013 | Bazaarvoice, Austin, TX
Built highly scalable REST API delivering ad snippets auto-generated from user-generated content (reviews, ratings) using NLP and machine learning.
| Scalability | Handled millions of UGC records, real-time ad serving at scale |
| AI/ML | NLP-based snippet extraction from reviews, ML-powered content relevance |
| Reliability | High-availability ad delivery system with strict latency SLAs |
| Cost Effectiveness | Automated snippet generation replacing manual curation |
15. FastTrack - Order Management System
2006-2009 | Toppan Photomask, Round Rock, TX
Built web-based user management and order management system for one of the largest photolithography service providers in the US.
| Scalability | Enterprise system supporting high-volume semiconductor manufacturing orders |
| Reliability | Full-stack enterprise application with production-critical workflows |
| Cost Effectiveness | Streamlined order processing reducing manual overhead |
16. EID - Student Authentication System
2006 | University of Texas at Austin
Contributed to Java-based online student authentication and authorization system serving UT Austin's student population.
| Scalability | University-wide system serving 50,000+ students |
| Reliability | Security-focused identity management with high availability requirements |
| Cost Effectiveness | Centralized authentication reducing duplicate identity systems |
17. Flight Reservation Module (TravelBox)
2003-2005 | CodeGen.IT, Sri Lanka
Built flight reservation module for TravelBox tour operating system, an enterprise travel technology platform.
| Scalability | Enterprise-grade booking system designed for multi-tenant tour operators |
| Reliability | Mission-critical reservation flows handling real-time inventory |
| Cost Effectiveness | Productized module enabling faster client deployments |