# Andrew Lorek > iOS, watchOS, web developer Location: San Francisco, California, United States Profile: https://flows.cv/andrewlorek I'm a former Twitter engineer from the early days; an experienced full-stack engineer particularly skilled in a front-end web platforms and with decent skill in mobile app development on iOS and watchOS. Interested in resuming front-end work on mobile apps for a mid-sized, focused startup. Some design/graphics ability as well. ## Work Experience ### Software Engineer @ Seesaw Learning Jan 2016 – Present | San Francisco, California iOS engineer and spinner of Dotcom Boom yarns. ### Software Engineer @ Personal Projects Jan 2015 – Jan 2016 Took time off to take care of a family medical emergency. Working on personal projects, primarily an iOS and watchOS fitness app, still in alpha, written entirely in Swift. Gained a lot of knowledge about CoreData, HealthKit, watchOS, iOS graphics and picked up some application design and graphic design skills as well. Currently looking to resume full-time employment, preferably continuing to work on mobile application development. ### Software Engineer @ Pushd Jan 2014 – Jan 2015 | San Francisco Pushd is a mobile app startup founded by ex-Twitter engineers and execs. While there I worked on a variety of app ideas for the company on iOS and watchOS, with some Android development as well. Besides front-end work, I maintained the Rails backend and the MySQL database. Worked briefly on their current Auraframes product. ### Technical Lead (Web, Growth, Analytics Infrastructure) @ Twitter Jan 2008 – Jan 2013 Hired as web engineer and 15th employee in the company. Ended up working on 3 homepage redesigns, 3 entire-site redesigns, search integration, verified-user badges, the crowd-sourced i18n application, 3rd party widgets, static assets packaging, new user onboarding, notification email delivery and generation, the mobile web app, the A/B testing platform, OAuth implementation, JS core frameworks, Facebook & LinkedIn integration, various APIs including follow recommendations and data logging. Managed and implemented analytics gathering infrastructure and some analysis infrastructure for web and mobile apps. Probably a lot of other stuff I've forgotten. ### Senior Software Engineer @ Oracle Jan 2008 – Jan 2008 BEA was bought by Oracle. Left shortly thereafter. ### Senior Software Engineer @ BEA Systems Jan 2005 – Jan 2008 Solely designed and implemented a suite of UI controls for the JSF and ASP.NET platforms using a single source code base. These dynamic UI controls were able to utilize AJAX requests to allow JSF and ASP.NET applications to be built along modern web application standards. Worked on BEA's new social networking enterprise applications, all of which were built using these controls. Started working at BEA after it was acquired Plumtree Software. ### Senior Software Engineer @ Plumtree Software Jan 2002 – Jan 2006 Worked on enterprise applications for the Plumtree portal, an enterprise application allowing diverse web applications to be aggregated on a single "portal" website. Wrote UI, application logic, and data access code for content management, collaboration, and page layout applications. ### Software Engineer, Contractor @ LegalMatch Jan 2002 – Jan 2002 Contracted briefly for this legal services marketplace startup, designing and implementing the UI for the website's front-end and optimizing back-end SQL queries. ### Senior Software Engineer @ Bitlocker Jan 1999 – Jan 2001 Started as 5th employee for this web application startup. Bitlocker.com provided a web-based database creation and access application for its clients. Designed and implemented the user interface from the whiteboard to the website launch. Worked on back-end ORDBMS code as well. ### Software Engineer @ Infoscape Jan 1999 – Jan 1999 Wrote Java Swing UI components and designed application user interface. ### Software Engineer @ Hitachi Data Systems Jan 1997 – Jan 1999 Wrote sales automation software for this company's portfolio of mainframe and storage servers. ## Education ### B.S. in Physics Yale University ## Contact & Social - LinkedIn: https://linkedin.com/in/andrewlorek --- Source: https://flows.cv/andrewlorek JSON Resume: https://flows.cv/andrewlorek/resume.json Last updated: 2026-04-11