Derek Yang Email & Phone Number

Sweden

Copenhagen, Capital Region, Denmark

- Developed and maintained Boozt's iOS e-commerce app with a focus on legacy codebase refactoring and test automation (Swift, Cocoapods, Fastlane)

Capital Region, Denmark

- Developed and maintained Paralenz’s iOS and Android apps (React Native, JavaScript, Swift, Objective-C, Java, GraphQL, Relay)- Worked on mobile payment integrations (Apple Pay, Google Pay, Stripe)

Sweden

- Developed and maintained Handelsbanken’s 9 iOS apps (Swift, Objective-C)- Developed continuous delivery pipelines in Fastlane that transformed a mostly manual workflow to one with build, test and release automation- iOS code signing troubleshooter- Developed and maintained Handelsbanken’s 2 Windows Phone apps (2015-2018)

Sweden

- Worked as an independent developer on building iOS apps for various international clients- App “Healthy Heroes” was awarded “Best Health and Fitness App 2012” by the Swedish Mobile Association

- Developed and maintained Autodesk’s data management software Vault. (.NET, C#, SQL Server, C++)- Coached a team of 10+ engineers on refactoring and unit testing etc.- Reduced build cycle from 10+ hours down to 2 through automation

- Worked on building ThoughtWorks’ continuous delivery software Go (Java, Spring, H2 database, iBatis, ActiveMQ). - Shortened team’s functional test cycle from 2+ hours to 20 minutes- Worked on various client projects, including building a .NET based CRM system for a Hong Kong based investment bank- Built and led a L3 support team. Gained valuable experience supporting and finetuning a large, complex system used by 80+ bank branches globally- Practiced test driven development… Show more - Worked on building ThoughtWorks’ continuous delivery software Go (Java, Spring, H2 database, iBatis, ActiveMQ). - Shortened team’s functional test cycle from 2+ hours to 20 minutes- Worked on various client projects, including building a .NET based CRM system for a Hong Kong based investment bank- Built and led a L3 support team. Gained valuable experience supporting and finetuning a large, complex system used by 80+ bank branches globally- Practiced test driven development and pair programming on a daily basis Show less

- Tech lead on a .NET project to develop a multi-tier rich client software solution for a California based client (.NET, C#, Web Services, SQL Server)- Switched to the role of onsite coordinator and worked in US with the client for 8 months, focusing on team communication, requirement analysis etc.- Grew a team of 6 developers and 1 QA into a size of 20+ in one year