Jon Hoffman

Co-Founder and CTO

Anomaly

Jan 2020 - Current (6 years 6 months)

Anomaly harnesses advancements in Machine Learning and Artificial Intelligence to uncover hidden patterns and costly, preventable defects in health payment data - driving certainty in reimbursement & healthier relationships between payers, providers and patients. We’re hiring! Visit findanomaly.com for more info.

Head Of Engineering

Redesign Health

Aug 2018 - Apr 2020 (1 year 9 months)

Building healthcare companies from scratch: ideation, funding, pushing code and hiring the founding teams. Was early acting CTO for: - Vault - Calibrate - EverBody - HealthQuarters - Anomaly

SVP, Engineering

Foursquare

May 2016 - Dec 2017 (1 year 8 months)

I reported to the CEO and ran the engineering team across our NYC and SF offices.

Senior Director of Engineering - Ads

Foursquare

Mar 2015 - May 2016 (1 year 3 months)

I led the team that's responsible for building all of Foursquare's advertising products: * Pinpoint - We build targetable advertising segments (e.g., "people who've gone to a car dealership in the past 14 days") based on Foursquare first-party location data and secondary data. Raw lat-lng data is fed through machine learned models to determine place visit history with a high degree of confidence. Segments are built using offline batch processing as well as inline with an aggregated real-time bid stream. * Attribution - Real world conversion measurement based on a panel of Foursquare & Swarm users. Exposed user visit rate is compared to an algorithmically constructed control group to compute visit rate lift. The control group constructi

Director of Engineering - Foursquare App

Foursquare

May 2014 - Mar 2015 (11 months)

The team was responsible for Foursquare app components including profile, follow graph, expertise, and sign-up/onboarding flow during the period that Foursquare and Swarm were split into two different apps. After building the sign-up/onboarding flow, we also built the ability to use Foursquare "anonymously" - i.e., without signing up.

Senior Staff Engineer

Foursquare

Mar 2014 - May 2014 (3 months)

A brief stint as an individual contributor to help build the server side of what evolved into the Top Picks screen in the Foursquare app

Director of Engineering - Infrastructure

Foursquare

Mar 2011 - Mar 2014 (3 years 1 month)

Led the infrastructure team during the company's highest growth period. The team's notable projects included: - Designing the MongoDB collections that store Foursquare's largest data sets - Tooling, including a fork of MongoDB to support running Mongo on unreliable disks - Building out the offline analytics stack that now powers much of the Foursquare, Swarm, Ads, and Enterprise products - Splitting up our monolithic server stack into a services-oriented architecture and building out the support tooling

Software Engineer

Foursquare

Mar 2010 - Mar 2011 (1 year 1 month)

As one of the first engineers, I mostly focused on issues related to scalability as the user base grew from thousands to millions.

U

Software Engineer

Udorse

Jul 2009 - Feb 2010 (8 months)

Built udorse.com and wee bit of topguest.com. I spent most of my time working on the server side web architecture using the scala web framework, Lift.

Software Engineer

Goldman Sachs

Jun 2005 - Apr 2009 (3 years 11 months)

I worked on the Risk Cache, a custom reporting tool for assessing market and credit risk across the entire firm's positions. Trade and simulated pricing data from various sources were co-located into Java process heap to allow for arbitrary queries by end users over a web interface. Data requirements that exceeded limitations of commodity hardware required a move from single process to distribution across multiple servers. I created the data chunking, loading, and recovery framework for pricing data. - Built an arbitrary operation distributed execution framework to send computes to data and aggregate results (i.e., map/reduce). - Built a parallel calculation graph engine to optimize data loading utilizing the Fork-Join task library

Software Engineer

COMMERZBANK AG

Jul 2004 - May 2005 (11 months)

I was a software developer within the Digital Markets group. We created plumbing to other services such as Reuters and Bloomberg. These were gateways written in Java to allow our proprietary trading platform to communicate via quirky TCP socket protocols.

Software Engineer

Centurylink

Aug 2003 - Jun 2004 (11 months)

- Worked on R&D Voice over IP (VoIP) conferencing project as part of training. We created a Java based web service and application code to facilitate call processing on VoIP application server. - Worked on re-creation of the myqwest.com customer portal in order to achieve greater performance, up-time, and usability. - Built the core user account management Web Service in C# that coordinated and synchronized data across an Oracle database and a TIBCO bus exposed legacy service. I also created a data access architecture and supported development efforts of external teams that utilized the framework.

Software Developer

Net Health

May 2002 - Jul 2003 (1 year 3 months)

I was a significant contributor on a team that created a Palm Pilot application to allow healthcare staff to input wound treatment assessments electronically while seeing a patient, and then later synchronize that data with a web based system. The Palm Pilot app was written in C, the synchronization conduit was in Visual C++, and the server side was in Microsoft's ASP (pre .NET).

About

Detail

Timeline

Résumé