* Designed and implemented network activity tracing using Objective-C method swizzling.* Architected an on-screen barcode to enable syncing of screen recordings with trace events, displayed from a background thread using Metal and CoreImage.* Wrote code to automatically configure client build settings (Xcode, SPM, and Bazel supported).* Added features and fixed bugs related to source code injection (using SwiftSyntax).* Wrote scripts to build, notarize, and staple our tools for distribution to client.* Configured and re-signed ad-hoc iOS apps shared by clients. Steps included modifying Mach-O load commands, interposing Security framework functions, and modifying entitlements.* Reviewed iOS-related performance insights before they were shared with clients.

* Responsible for various features, bug fixes and maintenance tasks needed to prepare the Reclip iOS app for App Store release. 100% Swift. Native frameworks used include UIKit (95%) and SwiftUI (5%), Combine, AVFoundation, Core Data and MetricKit. Third-party frameworks include Firebase, Auth0 and Alamofire.* Designed interview challenge questions and other criteria for evaluating potential iOS candidates.* Implemented more than 600 unit tests, added an integration test target to hold slower tests, and built custom Sourcery templates to generate mock objects.

* Architected and built a Core Data "changes" layer for Appraiser iOS. This layer was responsible for keeping local and remote changes to appraisal data in sync.* Wrote the networking library used by all iOS apps. Features include automatic retries for token-expiration failures and the ability to mock specific requests.* Developed a modular, UI-based debugging library for iOS. Features include easy addition of new debugging features, and drag-and-drop HUD widgets.* Created a GraphQL generation tool for Swift client code. Given a GraphQL endpoint, generates type-safe request and response objects. Written in Python.* Established a dependency injection pattern for use in HouseCanary iOS code. Our implementation utilized protocol conformance to acquire factory methods.* Designed and built server-side APIs for customer-facing products, including the ComeHome REST and GraphQL APIs (written in Go) and the Appraisal REST API (written in Python).

* iNavX [February 2016 to November 2016] - I was tasked with bringing the codebase up to modern standards, and with adding several features including in-app purchases and network syncing. Written in Objective-C.* Stitch Fix iOS [March 2015 to January 2016] - I worked with developers at Stitch Fix and Carbon Five to build v1.0 of their iOS app. Written in Swift.* Flixfindr iOS [November 2014 to March 2015] - I built v1.0 of their iOS app. Written in Swift.

* Employee #3.* Key contributor to the second iteration of the consumer iOS app. Time from first line of code to App Store submission took approximately 2.5 months.* Played a key role in architecting and developing the first iteration of the company’s consumer app. It allowed the user to specify item to pick up, pickup address and delivery address.* Primary architect and developer of the courier iOS app. Notifies couriers of available jobs and relays the courier’s progress once a job has been started.

* Worked for two months as a subcontractor on Blockbuster's Android application. My primary focus was implementation of the app’s DRM features.* Spent four months working for Postmates remotely as a contract developer before joining them full-time in SF.

* Tech lead on the project to build the native iPad Application for The Financial Times. One of 5 iPad applications honored with an Apple Design Award at the 2010 World Wide Developers Conference.* Tech lead on native iPhone Applications for the Financial Times, Fineco, and FTSE.* Member of development team on iOS projects for CNBC, TDWUK, RBS, NatWest and Zecco.* Wrote Ruby scripts used in several projects by the Mobile Applications team.