Data engineering, analytics and data science.SQL, Python, BigQuery, Airflow.

Recruited and led the platform engineering team.Product management and engineering for the health data platform.AWS, Python, PostgreSQL, ReactQ Bio's mission:To remove the barriers to ubiquitous, preventive medicine.

Product management and engineering.

Product management and engineering.

Software design and engineering, product management.Highlights:• Designed and implemented a service that collects and analyzes credit card transaction history and a data visualization application on top of it.• Led the development of the publisher portal for the card-linked offers affiliate network.• Designed and ran a/b testing on the main consumer flow in Yub.• Specified and implemented analytics of the consumer website.• Led the adoption of node.js in the company.

Software design and engineering.Highlights:• Implemented and fine-tuned a ranking algorithm for in-app ads (“offers”). • Designed and implemented an offer recommendation system.• Implemented the integration of a credit card network into the card-linked offers platform (spinned off as "Yub").

• As founder, worked directly on all parts of the business: product design, software engineering, operations and business development. • Created and launched a service that collects product opinions and recommendations from Twitter. The service finds related tweets, removes spam, analyzes sentiment and creates a structured database of everything that was said about particular products (http://cohai.co).The service is exposed as a consumer website and as widgets that can be embedded in online retail websites (http://cohai.co/widget/get).The service is built with C# and ASP.NET MVC 3, Amazon Web Services (EC2, Mechanical Turk), MySQL and is deeply integrated with the Twitter API.• As contractor, developed a marketplace for group travel on top of the Facebook platform (launching 06/2012). The product includes a sophisticated payment system using PayPal Adaptive Payments.• As contractor, developed a fashion Facebook application that lets users create and share “closets” with friends (http://apps.facebook.com/wearitshareit/). The product is deeply integrated with the Facebook platform.

• Led the vision, design and specification of the social shopping project for Sears Holdings, #8 largest online retailer in the US (http://shopyourway.com).• Responsible for the product vision, product requirements and UX design. Guided the work of the engineering department.• Managed a team of 2 product designers.

• Joined the company as first employee and saw the company through the acquisition by Sears Holdings.• Managed a team of 5 engineers from inception to launch of a social web search engine.Built a web application using Microsoft .NET and integrated with various social networks (Facebook, Twitter, MySpace, Flickr etc.). • Integrated with a large custom search engine built using Lucene and Solr, MySQL databases and proprietary data storage systems.• Responsible for software architecture and standards, team building and management, project management and integration with other engineering teams.• Worked closely with the CEO and VP of Product to gather and define product requirements.

• Developed software for a large scale web-based project management tool.• Worked on server-side and client-side components, using C#, MySQL and JavaScript.• Designed and implemented the product-wise user-authorization system.

• Managed a cross-functional team of 8 in charge of a real-time GIS project for the Israeli Air Force.• Under my management, the system was successfully deployed and integrated in multiple Air Force bases.• Responsible for requirements gathering and specification, software architecture and engineering, UX design, deployment to end users, project and team management, user support and training.