Innovating for safer, more sustainable productsBuilding enterprise platforms that leverage AI, science and advanced technology to manage substances of concern (identify, mitigate, and innovate)

Founding member and head of AWS Systems Manager, cloud management suite enabling AWS customers to build, automate, optimize, and operate at scale. Built 10+ services including 2 reinvent keynote announcements. Systems Manager securely manages millions of nodes, executes billions of daily operational automations, enables visual workflow authoring and offers comprehensive solutions for change, incident, and operational event management. Enterprise customers and leading Security & Observability vendors leverage Systems Manager to deploy and configure their agents.Built hyper scale suite of services globally handling trillion+ TPS, and highly resilient multi-region incident response system. Built low latency messaging system, cross-platform (Linux, Windows and MacOS flavors) open-source agent, and workflow orchestrator to securely manage 100+ million Servers/Containers/IoT compute nodes across hybrid clouds. Built multi-petabyte cellular OpenSearch based centralized storage solution to collect, search/analyze resource inventory across AWS accounts and regions. Responsible for strategy, vision, execution, and business P&L. Built a large and diverse 200+ global cross-functional organization from ground up. Managed team of Automated Reasoning scientists innovating on advanced security features. *EC2 Windows* Led engineering team and built EC2 Windows features that include windows sys-prep and configurations, simple domain join feature, bring your own license and Windows golden AMI release automation.

Office 365 Information Protection and e-DiscoveryFounding member and Engineering Manager of Office 365 v1 Spam Filtering service. Built cloud-native spam filtering system with high SLAs (1000+ mails/sec, latency under 3 sec, scaling to billion+ daily mails and supporting several million users). This extensible filtering engine is built with advanced capabilities such as rules chaining, fingerprinting, parallel execution, and heuristic based IP pool selection. Led engineering team that builds E-Discovery features for Office 365. Built federated e-discovery search platform that searches petabytes of data across Exchange, SharePoint, file shares and Lync. Managed Security Research team focusing on safe, secure, and spam -free email experience.Microsoft Exchange Hosted ServicesArchitected and built Emerging Spam Responder, analyze live spam feed and block newly emerging spams within 30 minutes. Designed and built IP filtering Service to efficiently classify spam emails originating from suspicious IPs. Re-designed email feedback loop system to process 5X increase in volume (300K+ mails/ day) and built innovative features (fingerprinting, clustering, and auto-triaging) to reduce operational burden of Spam Researchers.

Engineering Manager, Microsoft Windows (2002-2005)Built and managed large-scale distributed automation system for Microsoft Windows divisionTechnical Lead, Hewlett Packard (2000-2002)Managed offshore engineering team for HP WebEnforcer, enterprise security product.Software Engineer, Unit Trust of India (1998-2000)