Currently dedicating my career to web development through Ruby on Rails, Go and React. Interested in distributed computing projects and high scale infrastructure. Feel free to check out my website https://jonwho.github.io to run some sample apps I have written or to see my future work!

2020 — NowAppleSenior Software Engineer

2020 — Now

2019 — 2020OpendoorSoftware Engineer

2019 — 2020

Software Engineer on Growth & Engagement working in Ruby on Rails, React & React Native

* Consolidated metric APIs to reduce monthly engineering spend

* Build similar homes fallback API to improve response times

* Launched Early Access feature which sees higher user engagement

* Setup data feed and test Iterable email templates

* Update buying experience on web to meet parity with mobile experience

* Add new UI / CTAs that drive user engagement and tour conversion

* Document existing deep links and best practices to debug and develop

2017 — 2019ReSci (Retention Science)Software Engineer

2017 — 2019

Software Engineer on the Product Engineering team working in Ruby on Rails

* Develop tool to allow clients to build and target custom audience segments

* Integrate Data Science predictions based on control/distribution ratio

* Create report builder for product metrics

* AWS Batch development to scale with holiday traffic

* New SLA monitors to oversee core services

* UTM integration for clients on Google Analytics

* 3rd party plugin system for flexible data integration

* Internal API development for frontend and Data API for clients

* On-call rotation to triage/fix service operations

2016 — 2017Whisper AppSoftware Developer

2016 — 2017

Venice, California

Software Developer on the Web team developing in Elixir, Erlang, Phoenix framework, and CoffeeScript

* Add ad partners through header bidding

* A/B test call-to-action mobile installs from web

* Audience demographic targeting for partner campaigns

2015 — 2016Fullscreen MediaFull Stack Software Engineer

2015 — 2016

Playa Vista, CA

Software Engineer on the Video Operations team developing in Ruby on Rails and AngularJS/ReactJS.

* Develop tools in and around video.js (JavaScript, HTML5/CSS3)

* Experience working with DASH/HLS streams and caption rendering in browsers

* Develop tests in RSpec 3 covering unit testing to feature testing

* Client-side QC tools developed in AngularJS 1.x / ReactJS

* Work on asset workflow automation from ingestion to publishing using Workflow gem

* Use of workers and processes through Sidekiq gem

* User operations with Devise gem

* XML manipulation with Nokogiri gem for dynamic caption playback

* Query interface in client with Ransack gem

* Development debugging with pry-rails gem

Education

2011 — 2015

UC San Diego

Bachelor of Science (B.S.)

2011 — 2015

Experience+

Education

Bachelor of Science (B.S.)