Skip to content


Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time

Tim Kersey

Los Angeles, CA

Carbon Five — February 2018 to present (Senior Software Developer)

Working as both individual contributor and technical lead as needed when consulting on client projects.

  • iOS app for a large, midwestern bank
    • Led team through implementing advanced Swift/iOS concepts to prepare the codebase for growth
      Technologies used: Swift, RxSwift, Swagger
  • iOS and Android apps for remote group therapy
    • Built using Saas solutions for HIPAA compliance under extremely short deadline
      Technologies used: React Native, Expo, Firebase
  • iOS and Android app for Mexican small business credit card
    • Led to to recongize the opportunity to build using SwiftUI/Combine and implemented using Elm/Redux architecture
      Technologies used: SwiftUI, Combine, The Composable Architecture (TCA), Figma
  • Launched telehealth and chatbot services in the US for UK based company
    • Co-led team of 12+ to customize existing microservices for US Market (HIPAA compliance, EHR integration, Localization)
      Technologies used: Swift, ReactiveSwift, Bento, OpenTok, React, Rails, Java, Spring
  • iOS app for socially responsible investing
    • Written declaratively using many ideas from functional programming
      Technologies used: Swift, RxSwift, RxDataSources, Rails, React

Skurt — May 2017 to January 2018 (Senior Software Engineer)

iOS development lead building an app to deliver rental cars to customers

  • Led the transition from monolithic feature development to incremental improvements in small batches
  • Implemented a test driven development process, including full test coverage on all new features and backfilling of test coverage when refactoring
  • Executed product transition from reservations to on-demand rentals
  • Reduced app size by 30% without loss of functionality and improved build times by 300%
    Technologies used: Swift, RxSwift, Swagger

Pivotal Labs — November 2015 to May 2017 (Senior Software Engineer)

Worked in collaboration with designers, product managers and developers to guide client team members to working in a Lean/Extreme Programming style

  • tvOS app for a lean-back, recommendation based video experience for pre-funded startup
  • Software to manage broadcast tv for online streaming in React/Java/Spring for a large broadcast tv company
  • Redesign of meal plan workflow for FoodTech in Node/Angular
  • iOS app for FinTech startup in auto loan space
  • iOS app for an auto club in Southern California developed in Objective-C
    Technologies used: Swift, tvOS, Objective-C, Node, React, Java, Spring, Rails, XP

ThinkALike — April 2015 to October 2015 (Senior Software Engineer)

iOS based social network designed to discover unknown connections between users

  • Worked alongside Pivotal Labs to architect and build a photo-based social network
    Technologies used: Swift, Rails, CloudFoundry

Freelance — October 2013 to March 2015

Worked with pre-funded startups to build minimally viable products under condensed timelines

  • iOS keyboard extension with row of custom actions including quickly sharing current location using both Apple and Google Maps
  • iOS app to aggregate all social content from your favorite musicians
  • iOS app to find and redeem deals by sharing via social networks
    Technologies used: Swift, Objective-C, Keyboard extensions, CloudKit, Slack, Sketch

Gray's College Enterprises — November 1998 to October 2013 (Director/Developer)

Gray's owned and operated eight off-campus retail stores catering to the college market and ran a wholesale division that distributed textbooks for retail and direct to customers

  • Designed and built from scratch an iOS app customized for the purchase of textbooks directly from students while at a remote location
  • Designed and built a tool to search Amazon for arbitrage opportunities on textbooks
  • Developed tools to automatically acquire critical business information about required textbooks for classes from campus websites
  • Designed and led development of a custom textbook inventory management system
    Technologies used: Objective-C, Ruby, Tokyo Cabinet, MessagePack
Open source contributions
  • Homebrew
  • ReSwift
  • Various Rubygems


No description, website, or topics provided.






No releases published


No packages published