Architecting and implementing full-stack features for the Auto List web product. Designing, building and maintaining infrastructure. Optimizing front-end and infrastructure performance. Focus on code quality and process sanity.Designing, architecting, and building Listimate™, a price estimation tool for auto buyers and sellers. Processing big data on historical vehicle pricing using AWS Elastic MapReduce, Data Pipeline and Redshift. Implementing features around this, including aggregating time series data, clustering data, and building price heat-maps.Architecting, designing, and building the Auto List Android app MVC, iOS app MVC, and mobile data API. Maintaining and extending functionality of the Android and iOS apps.Planning and implementing wide-ranging integration of user authentication into pre-existing systems. Balancing complex security, user experience, reliability, and backwards compatibility constraints across diverse web and native mobile clients.Leading or involved in the architecture, design, and implementation of many Auto List technical projects.Languages: Ruby, Swift, Python, Java, JavaScript

Engineering platform-spanning features for our suite of cutting-edge consumer- and business-facing websites. Developing new engineering tools and code constructs to improve developer efficiency. Working closely with front-end and architecture engineers to improve the usability and scalability of the platform.Languages: Ruby, JavaScript, PHPDesigned and implemented a machine learning recommendation engine for matching renters to available apartments.Helped design and implement a platform-based architecture for our suite of Rails-based web applications.Lead Engineer on the Auto List project for two years, building it from zero to net profitable in six months. Designed system and infrastructure architecture, and implemented full stack features. Responsible for leading a small team of one other engineer and a web desginer/developer.

Developing and maintaining features and modules of e-commerce websites. Working on web application back-ends and front-ends using PHP, MySql and JavaScript. Working on SEO projects. Contract position.

Developing and maintaining data-aggregation, data-analysis and reporting applications. Developing desktop applications with database back-ends in C# in the .Net framework. Developing web applications in ColdFusion and JavaScript. Integrating applications with Access and Oracle databases.

Developing test software for a computer vision system. Preparing reports on new technology. Using the Half-Life 2 engine to generate 3d animations of security scenarios. Writing code in C++.

Developing scientific code as part of a computer vision project. Developing code to calculate smooth approximations to jagged functions. Developing code to identify facial features. Coding in C, integrating with a larger codebase.