Building and Leading a remote-first engineering organization across USA and India. The Cities Engineering organization is responsible for building and maintaining all engineering infrastructure needed to keep Airbnb complaint with local regulations. This requires building high scale and low latency systems that integrate with core Guest and Host systems across bookings, calendar, and listing management. It is critically important to Airbnb's overall business. Execution requires cross-functional alignment across Product, Policy and Operations.

Built and led multiple software teams responsible for messenger's client-ML infra, Meta's OpenSource transpiler CG/SQL and Messenger Infra's Performance and Reliability team. Built and managed a multi-site team across Seattle, Menlo Park, New York and London. Our mission is to enable Messenger to scale and be integrated across Meta's family of apps including Messenger, Facebook on Android and iOS and on emerging devices in ARVR. The system is used by billions of users every day and operate at immense scale.

Head of AWS Marketplace for Machine Learning, SaaS and Professional Services. Launched new Professional Services for AWS Marketplace at re:Invent 2020. Grew SaaS business over 200% YOY with over half a billion in revenue. Led transformation of nascent ML category with 150% increase in engagement YOY.

Amazon's Choice is the most impactful product recommendation system for Amazon and Alexa that helps millions of customers with their purchase decisions. The program generates billions in gross revenue and is hugely coveted by sellers. At its core, it is a massively scaled algorithmic recommendation system built using big data, search and ML to help customers find the best products on Amazon. Grew the program from a modest prototype to highly scaled program across multiple systems, millions of customers in every market.Led the customer engagement team for Alexa Shopping responsible for awareness and engagement growth. Led evergreen campaigns and unique experiences on both Alexa, mobile, web and devices. Leveraged algorithmic targeting and econometric models to maximize effectiveness.

Launched a new live video advertising product (Amazon Live) to help customers learn and discover products on Amazon. Built a cross-functional team (UX, PM, SDE) across two sites (Seattle, NYC). Built a highly scaled (1M+ concurrent viewers), low broadcast latency network (<15 seconds) with multiple levels of network redundancy and high quality of service (< 5% rebuffer rate).

Led a cross-functional team of PM, Design and SDE incubating new mobile and cloud-based systems to simplify cross device usability ultimately shipping clipboard history with cloud sync for Windows 10.

Windows 8 + Bing: Software architect leading integration of Bing into Start Button for Windows 8. Responsible for App Deep linking architecture across result ranking, feeds, website annotation standards and crawler integration. Social Search: Led social search labs building features to improve search results using data from social networks (FB, Twitter, etc.)Contextual Search: Led team developing search ranking and relevance features for multi-query and session-based features. Commerce Search: Led development of MSN Shopping Search responsible for the targeted crawler, search index and result ranking. Led relevance and ranking team developing new search ranking systems leveraging Lambda-MART and ClickPredict.

Developed the managed code stack for Exchange Edge Server 2007's SMIME encryption and digital signing, TNEF, iCAL and RTF

Microsoft: Exchange Server, XBox, Windows, Natural Language GroupAmazon: Auctions and zShopsATI: Rage Mobility Drivers

Co-founded a company to create self-directed learning on computers in collaboration with Westmount Secondary School Math Dept.

Trauma medicine, field stabilization, land and air extraction.Partnered with Toronto Metro Ambulance during non-deployment.

C64 Basic, Pascal, C, C++, ASM, DirectX, OpenGL, 3D Studios, ACM Programming Competitions