Jan 2024 – Jul 2025 · 1 yr 6 mos · Seattle, Washington, United States

• Head of Engineering /CTO responsible to lead organization in architecting, building, delivery, and operating mission critical applications. The responsibilities include: (a) hiring and developing world-class Directors and Senior Managers for Software Development, Data & Applied Sciences, Principal Program Managers, Principal Engineers, and SDEs, (b) leading business processes such as annual operational planning for defining roadmaps partnering with multiple stakeholders, and (c) implementing mechanisms such as operational metrics reviews, monthly business reviews for delivering results.
• Amazon Pay’s mission is to provide Amazon customers a superior paying experience anywhere they shop. We are transforming our business model, our distribution, and our product through Alternative Payment Methods that have a proven track record of resonating with customers on Amazon (e.g., Gift Cards, Installments, Shop-With-Points). I am currently the Senior Director, Software Development leading 300+ people organization with software development, data engineering & analytics, and the AI/ML scientist teams to build and operate the digital wallet in four of the world’s largest regions, serving tens of millions of active Amazon customers and hundreds of thousands of merchants, generating hundreds of millions in revenue, and positive cash flow.
• Leading initiatives to 2x development velocity leveraging GenAI/LLMs for code generation & refactoring, automated test case generation for comprehensive test cases for unit, integration, and regression testing, identifying bugs and security vulnerabilities, and automating CI/CD pipelines with infrastructure as code (IaC).

Jan 2018 – Dec 2023 · 5 yrs 11 mos · Seattle, Washington, United States

• Amazon Web Services (AWS) is the most widely used cloud service provider. Millions of customers—including the fastest-growing startups, largest enterprises, and leading government agencies —are using AWS to lower costs, become more agile, and innovate faster for hundreds of millions of their customers. I
• was the Director, Software Development for six years leading the 400+ people organization for Customer Enablement, with teams of product managers, software development, and applied scientists, to help customers build and operate secure, resilient, and optimized applications on AWS, with:
• (a) AWS Health services to provide ongoing visibility into customer’s resource performance and the availability of AWS services and accounts. The tier-0 service with 99.99%+ availability delivers hundreds of millions of notifications triggered by changes in the health of AWS resources, to accelerate troubleshooting.
• (b) AWS Trusted Advisor provides best practice recommendations in using 300+ AWS services and 1000+ features. Trusted Advisor evaluates customer’s accounts to identify ways to optimize their AWS infrastructure, and leverages a unique combination of technology and humans to enable customers get the most value.
• (c) AWS Well-Architected helps cloud architects build applications that are secure, high-performing, resilient, and have efficient infrastructure. Well-Architected provides a consistent approach for customers and partners to evaluate architectures and implement scalable designs.
• (d) Foundational AI/ML models to predict customer intent and provide customers with actionable self-remediations, leading to large operational productivity gains for the AWS Support organization with 12,000+ employees (support engineers, technical account managers, etc.) Leveraged Gen AI and LLMs to guide customers through interactive conversational chat experience, and agentic workflows.

Jan 2013 – Dec 2017 · 4 yrs 11 mos · Seattle, Washington, United States

• Amazon Marketplace supports 2MM+ active 3P Sellers worldwide bring new selection and price competitiveness to Amazon customers, and is a major growth driver for Amazon. I was the Senior Software Development Manager for five years, and the single-threaded leader for Marketplace services such as Seller Central, Selling Coach, and Business Analytics.
• (a) Seller Central is the personalized dashboard that 3P Sellers use to manage their business on Amazon. Built and led the UI framework to support 50K+ hits/minute with under 2.5s latency at tp50 and 125 fatals per million.
• (b) Selling Coach Platform provided targeted advice to 3P Sellers to help them grow their business on Amazon Marketplace. 350+ models generate ASIN level recommendations related to inventory, selection, advertising and pricing. Platform scaled well in processing 100s of TBs of data, and leveraging machine learning models.
• (c) Launched and drove adaption of our big data processing platform, a fully managed Spark solution enabling data engineers, scientists, and software developers to transform and migrate their data between sources without requiring service setup, integration code, scaling, and operational burden. It supports streaming data at 30K TPS, 10TB bundles of records stored as flat files in S3, and records stored in a one billion record Dynamo table.
• (d) Built the technology organization supporting 2500+ GTM/Sales organization. Delivered technology to support 200K+ self-service Seller Registrations per year, Seller Promotions and Lightning Deals for Amazon Prime Day.

Sep 2009 – Dec 2012 · 3 yrs 3 mos · Seattle, Washington, United States

• eCommerce Platform Services (eCPS) team provided the platform for Amazon and powered every purchase, every shipment, every browse of a product, and every login. I was the Software Development Manager for three years responsible for building the core eCommerce services, especially for accurately and reliably calculating all transactional taxes such as Sales Tax and VAT for Amazon and 3P Sellers at checkout and during returns processing.
• (a) Led the core architecture consisting tier-1 services supported by several critical services. This architecture has scaled up well in the last fifteen years with the business and currently supports tax calculations @ 9000 average TPS (transactions per second) worldwide, extremely low latency (35ms @TP50) for calculation API used at checkout, and stores the artifacts from tax calculations 700 TARs (Tax Audit Records) per second.
• (b) Designed, experimented, and improved operational burden for the team (achieved 30% reduction in high severity tickets YoY and 18% reduction in low severity tickets YoY).
• (c) Led initiatives to eliminate bottlenecks for expansion to new countries and product categories, by removing avoidable coupling in the architecture, accelerating migration to new services and deprecating the legacy stack.

Aug 1997 – Sep 2009 · 12 yrs 1 mo

• Started my career as Software Development Engineer building 3D solid modeler at Unigraphics. Progressed while working as Technical Architect at Rapidigm, leading software development work for firms like Corning Inc., Meijer, Quixtar and Pfizer. Transitioned to Software Development Manager role at Morgan Stanley.