Charles Watkins Email & Phone Number

Menlo Park, Ca, Us

San Jose, Ca, Us

* Architect and build an innovative experience within the eBay app for college students, with visibility and monthly meetings to the Chief Product Officer.* Provide technical guidance and mentorship to a team of 6 iOS developers across the Selling organization by hosting office hours, thoughtful code reviews, and brown bag sessions.* Lead the effort to adopt MVVM-C within the eBay app, collaborating with the mobile architecture team for a platform-wide migration.* ​​Implement reusable UI components, working closely with design.* Champion localization and accessibility needs before development begins.* Build and maintain large, complex features such as real-time chat.* Work with AVFoundation to build in-app video recording.

San Jose, Ca, Us

* Adopted trunk-based development, leveraging an in-house A/B experimentation and feature flag system, resulting in more rapid and confident iteration.* Re-architected the Active and Sold listing management pages to provide a common platform for further feature development, 11M page views in total each day.* Implemented shareable listings, resulting in 27M links shared, 6.8M clicks, and 115K sales in its first 7 weeks* Worked cross-functionally to build Promoted Listings, a feature used by 52% of sellers in 2020.* Participated in all aspects of the Software Development Lifecycle, from project definition, technical specification, task break-down, delivery, monitoring, and maintenance.* Worked alongside Android developers to maintain feature parity between platforms.* Point-of-contact for client/service interaction, participated in service contract review.

San Jose, Ca, Us

* Led a team of four iOS developers to improve and iterate on Close5, reaching 12M downloads and thousands of daily active users.* Added a persistence layer on-device (Realm) for Close5, improving perceived performance and allowing for a limited offline-mode.* Built rapid prototypes of new features for user testing.* Profiled the Close5 app using Instruments before each release to monitor CPU / memory usage.

San Francisco, Ca, Us

* Launched the Close5 iOS app after Rumgr's acquisition in 2014.* Built real-time chat using sockets (PubNub).

Las Vegas, Nv, Us

* Built the front end (Obj-C) and back end (Node.js, MongoDB) for a Q&A system on listings.

North Las Vegas, Nv, Us

* Developed an app to calculate past constituents of special nuclear material (SNM) and visualize its change over time, titled DIVA (Decay Interaction Visualization and Analysis)* Spoke at the 9th annual MARC conference (MARC IX) in Kona, Hawaii* Work and results published: https://www.ans.org/pubs/journals/nt/article-12288/

Falls Church, Va, Us

* Worked on ASPEX electron microscope particle classification

North Las Vegas, Nv, Us

* Developed a method to rapidly determine past constituents of special nuclear material (SNM)* Worked on feature detection using wavelets on LaBr3 and NaI detector data