Portfolio

I'm John Senner, a seasoned mobile and web developer with over a decade of experience, starting in 2010. Throughout my career, I've successfully contributed to Android app development for notable organizations such as Honey, OfferUp, NBA, NYPL, the American Heart Association, the Colorado Lottery, and Sporcle. My passion lies in crafting clean code, creating comprehensive documentation, mentoring emerging developers, and implementing automated testing practices.

Here is a brief portfolio of just a few of the Android/iOS apps I've worked on:

NBA - https://play.google.com/store/search?q=nba&c=apps&hl=en_US&gl=US (I worked specifically on the TV app) PayPal Honey - https://play.google.com/store/apps/details?id=com.joinhoney.honeyandroid&hl=en_US&gl=US OfferUp - https://play.google.com/store/search?q=offerup&c=apps&hl=en_US&gl=US Sporcle - https://play.google.com/store/apps/details?id=com.sporcle.geneva&hl=en_US&gl=US Colorado Lottery - https://play.google.com/store/search?q=colorado+lottery&c=apps&hl=en_US&gl=US

In the last few years, I have been developing a lot for Flutter. I love that it's declarative and responsive, that it gives cross-platform binaries of course, and that it's primed for modern development with separation of concerns and reusable widgets. My latest Flutter accomplishments have been extending the styling on widgets, building a Repository class I'm happy with, and learning about the different navigation patterns. I would be excited to talk about roles on your team if there might be a fit!