Senior iOS Developer with 12+ Years Experience

Jon Fabris, senior iOS developer

***@**************.*** Efland, NC (27243) 919-***-**** linkedin.com/in/jon-fabris

PROFESSIONAL SUMMARY

Innovative and highly skilled Senior iOS Developer with 12+ years of dedicated iOS experience and 20+ years in software development across industries including eLearning, fintech, insurance, healthcare, crypto, gaming, and social platforms. Proficient in Swift, SwiftUI, UIKit, and modern iOS architecture, with strong cross-platform experience in Android (Kotlin). Adept at full life-cycle development in Agile environments, including architecture design, testing, performance optimization, and deployment. Published multiple iOS and Android apps and recognized for building scalable, user-friendly applications that drive business success. Extensive experience working with startups and distributed teams.

AREAS OF EXPERTISE

Swift SwiftUI SwiftData UIKit Unit Testing UITesting Xcode Concurrency Objective-C Kotlin Java GIT YAML GraphQL Android SDK JavaScript/HTML5 C++ Unity C# REST APIs JSON Cucumber/Gherkin XML SQL MySQL Agile SCRUM UI/UX Design iOS eLearning Solutions Software Architecture Multithreading Android Studio MVVM Coroutines Jetpack Compose Gradle UIKit Fintech Healthtech Realm Plaid OAuth JWT HealthKit Reactive programing

PROFESSIONAL EXPERIENCE

Freelance iOS Developer Toptal Oct 2024 – Present

Served as the lead iOS developer for innovative mobile applications, ensuring high performance and user engagement. Collaborated with cross-functional teams to deliver projects that meet client needs and expectations. Developed a crypto mobile app, Coinlist, enhancing user experience and functionality. Contributed to the iOS app for Premiere Lacrosse League, focusing on seamless integration and performance.

Senior iOS Developer String and Key and Wysh (Startup) Mar 2021 – Oct 2024

Led the development of a customer-facing life insurance app, optimizing user interactions and enhancing overall experience. Focused on backend optimization and collaborative team efforts to deliver high-quality mobile solutions. Spearheaded the implementation of GraphQL, improving data retrieval processes. Played a crucial role in enhancing app performance, leading to increased user engagement. Directed the iOS UI Test team, ensuring product quality through robust testing procedures. Mentored junior team members.

Senior iOS Developer AD60 Aug 2018 – Mar 2021

Delivered a diverse portfolio of iOS and Android mobile applications tailored to the unique needs of high-profile clients, including Christie’s Auctions and Moneylion. Served as lead developer on several projects, such as a fractional stock-trading app and a pinball minigame, while also taking responsibility for coding a C++ cross-platform SDK. Collaborated closely with clients to translate business requirements into intuitive, scalable mobile solutions that enhanced user satisfaction and supported overall client success.

Freelance iOS Developer Toptal International Aug 2014 – Aug 2018

Developed and delivered innovative mobile applications—including WhereYouAt, Perchwell, Salony, and Behold—each tailored to address unique client challenges and industry demands. Leveraged expertise as part of Toptal’s elite network of top 3% developers to design high-quality, scalable solutions for global clients. Consistently exceeded client expectations by transforming complex requirements into user-friendly, performance-driven mobile applications.

Freelance Developer JAF Productions Apr 1994 – Aug 2018

Partnered with high-profile clients, including National Geographic, Disney, Sesame Street, Chase, the DOD, UNC, and others, to deliver innovative solutions across a wide range of industries. Provided full life-cycle development for projects spanning mobile apps, games, business tools, and eLearning platforms, ensuring end-to-end quality and strong client satisfaction. Led architecture, programming, and design for iOS and Android apps and games, elevating functionality and user engagement through cutting-edge solutions. Designed and implemented more than 40 Flash applications, over 20 Java applets and servers, and numerous desktop and web applications, including multiplayer games and cross-platform tools. Applied deep expertise in technologies such as Swift, Java, Kotlin, C#, .NET, Unity, and others to build scalable, robust software tailored to client needs. Streamlined development processes and introduced innovative features across multiple projects, improving performance and strengthening client relationships.

Freelance Developer Contractor Anuva Innovations Aug 2014 – Sept 2016

Developed user-facing Android and iOS mobile applications that seamlessly interfaced with hardware devices, enhancing functionality and overall user experience. Delivered robust solutions incorporating Bluetooth (standard and LE), GPS services, and database integration to ensure reliable performance and precise device communication. Applied Agile SCRUM methodologies to efficiently manage workflows and deliver high-quality projects within tight deadlines.

EDUCATION

B.S. in Computer Information Systems Bentley University - Cum Laude Waltham, MA

PROJECT EXPERIENCE

Coinlist.co – Lead developer for Crypto iOS fintech app. SwiftUI front end and REST server, amplitude analytics, Apple Pay, concurrency, unit testing, MVVM/TCA architecture.

Premiere Lacrosse League - iOS App. Lead developer. SwiftUI and UIKit front end with REST server.

Wysh iOS and Android: Cross-platform consumer life insurance app with fintech features, Push notifications, OAuth, JSON Web Tokens, GraphQL. (Swift, SwiftUI, GraphiQL, Kotlin) – Senior iOS Developer, UI testing specialist. (Mobile apps discontinued)

Pace iOS and Android: Research app for Adrenal Crisis content. (Swift, Kotlin) – Sole Developer.

Rise iOS and Android: Wellness app for weight loss. (Swift, Kotlin, Charts) – Sole Developer.

GRE Upgrade Vocabulary: (Swift) Educational prep app for GRE vocabulary.

Moneylion iOS and Android: Consumer-facing financial app. (Swift, Java, Kotlin, C++)

Guild iOS: Financial app with REST backend. (Swift)

Graypeak iOS & Android: Talent management enterprise apps. (Swift, Kotlin)

Graypeak Interview iOS & Android: Video interview apps. (Swift, Java)

The Better Their World Database: Cross-platform student project app. (Ionic, Firebase)

Tio iOS & Android: Home automation interface apps. (Swift, Java, Bluetooth)

Behold: Image processing app for iOS. (Objective-C)

Perchwell, Salony, WhereYouAt: iOS apps with geolocation, social logins, and REST APIs. (Swift)

Igluco Touch iOS & Android: Insulin pump interface with Bluetooth connectivity. (Swift, Java)

WhereYouAt: Geolocation based social media app (iOS - Swift)

Stability Ops – Training game. Phase 1&2 SBIR for DARPA and DOD (C++)

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