Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Sean Goldsborough, an iOS engineer who loves turning ideas into concise, reliable apps with thoughtful design. I enjoy solving challenging problems, learning new skills, and growing as a software developer through collaboration and hands-on work. I’ve shipped features for high-traffic apps in gaming, sports betting, and fintech-style domains, always focusing on clean code, robust architecture, and a great user experience. I thrive in cross-functional teams and enjoy bringing product ideas to life from concept to release.…Hi, I’m Sean Goldsborough, an iOS engineer who loves turning ideas into concise, reliable apps with thoughtful design. I enjoy solving challenging problems, learning new skills, and growing as a software developer through collaboration and hands-on work. I’ve shipped features for high-traffic apps in gaming, sports betting, and fintech-style domains, always focusing on clean code, robust architecture, and a great user experience. I thrive in cross-functional teams and enjoy bringing product ideas to life from concept to release.

Sean Goldsborough

App Developer, Web Developer, Full Stack Developer, +2





Hi, I’m Sean Goldsborough, an iOS engineer who loves turning ideas into concise, reliable apps with thoughtful design. I enjoy solving challenging problems, learning new skills, and growing as a software developer through collaboration and hands-on work. I’ve shipped features for high-traffic apps in gaming, sports betting, and fintech-style domains, always focusing on clean code, robust architecture, and a great user experience. I thrive in cross-functional teams and enjoy bringing product ideas to life from concept to release.…Hi, I’m Sean Goldsborough, an iOS engineer who loves turning ideas into concise, reliable apps with thoughtful design. I enjoy solving challenging problems, learning new skills, and growing as a software developer through collaboration and hands-on work. I’ve shipped features for high-traffic apps in gaming, sports betting, and fintech-style domains, always focusing on clean code, robust architecture, and a great user experience. I thrive in cross-functional teams and enjoy bringing product ideas to life from concept to release.

Available to hire

Hi, I’m Sean Goldsborough, an iOS engineer who loves turning ideas into concise, reliable apps with thoughtful design. I enjoy solving challenging problems, learning new skills, and growing as a software developer through collaboration and hands-on work.

I’ve shipped features for high-traffic apps in gaming, sports betting, and fintech-style domains, always focusing on clean code, robust architecture, and a great user experience. I thrive in cross-functional teams and enjoy bringing product ideas to life from concept to release.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Independent iOS Engineer at NoomaLooma

October 1, 2025 - Present

Implemented chat and image sharing features using SwiftUI. Implemented bingo-style gaming logic using Swift, SwiftUI, and Combine.

Software Engineer at Apex Trader Funding Inc

May 1, 2024 - Present

Developed and implemented algorithmic trading strategies for CME Futures Exchange using NinjaScript. Implemented algorithmic trading strategies to meet company profit target goals.

iOS Engineer at Penn Interactive/Penn Entertainment

August 1, 2022 - January 31, 2024

ESPN BET/TheScore Bet Sportsbook and Casino: Refactored Bonus Bets feature from UIKit/IGListKit to SwiftUI and MVVM; Built Promotions Credits feature using SwiftUI and GraphQL; Added Promotion Opt-In functionality with IGListKit and GraphQL.

iOS Engineer at Penn Interactive/Penn Entertainment

August 1, 2022 - December 31, 2022

TheScore Bet Sportsbook and Casino: Deep linking between sports media app promotions to theScore Bet Sportsbook betslip and casino.

iOS Engineer at Penn Interactive/Penn Entertainment

February 1, 2020 - August 31, 2023

Barstool Sportsbook and Casino: Geofenced promotions with CoreLocation, Kotlin Multiplatform and MVVM; SmartyStreets address verification for user registration; biometric login feature on the home screen; responsible gaming features; oversaw Autumn 2021 release and release builds for Apple review.

iOS Engineer at Penn Interactive/Penn Entertainment

January 1, 2020 - February 29, 2020

Hollywood Sportsbook: Contributed to a random parlay generator feature using Swift, MVC architecture and UIKit.

iOS Engineer at Wikilane

June 1, 2019 - December 31, 2019

Designed and developed a reactive version of the InvoiceHome app using SwiftUI, Combine and MVVM. Updated existing code base to support Dark Mode for iOS 13. Implemented a UI/Unit testing solution via Swifter mock server.

iOS / React Native Developer at Chad

January 1, 2019 - June 30, 2019

Collaborated with a team of developers using Swift, Slack, and Git to produce clean code and meet team goals. Implemented updates to the existing user interface using React Native.