OMER SEN
Voorhees,NJ
Summary
Mobile development professional with strong track record in creating user-friendly applications. Adept at leveraging coding languages and development frameworks to deliver high-quality results. Known for effective collaboration within team environments and adapting to project needs seamlessly. Skilled in problem-solving, coding in Swift, and ensuring optimal app performance.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Full Stack Developer
Zarany LLC
09.2021 - Current
- Built the original iOS app using SwiftUI, and later rebuilt it using React Native for Android support.
- Owned full-cycle mobile development: UI design, Stripe payment integration, authentication, webhooks, and App Store submission.
- Developed and maintained backend systems, including donation processing APIs, admin panels, and webhook integrations.
- Handled API design and infrastructure to support both the mobile app and nonprofit operations.
- Overcame the technical challenge of learning React Native from scratch to enable cross-platform reach.
- Live on App Store with ~1300 impressions and 30–40 downloads; continuously maintained and improved.
Mobile Developer
Circleboom
06.2022 - Current
- Built and maintained the Circleboom iOS app using Swift, SwiftUI, and MVVM architecture, delivering a performant and scalable codebase across iPhone and iPad.
- Collaborated with cross-functional teams to enhance app functionality and user experience.
- Migrated all networking from RESTful APIs to GraphQL using Apollo Client, implementing OAuth 2.0 with Bearer Token authentication.
- Designed and implemented data-driven UI components including filtering views with tristate toggles, onboarding flows, and alert-based overlays.
- Developed animated state-driven visualizations for analytics dashboards, improving user interaction and engagement clarity.
- Delivered full dark mode support and adaptive iPad layouts with responsive design patterns.
- Managed state-driven rendering and UI logic using SwiftUI’s declarative model.
- Owned App Store deployment and collaborated with backend/product teams to ensure feature success.
- Improved app stability and UI responsiveness by profiling SwiftUI views, optimizing async GraphQL data loading, and addressing edge-case crashes during QA.
Education
Bachelor of Science - Computer Science
Rutgers University
New Brunswick, NJ05.2005
Skills
- Languages and Frameworks: Java, Python, Swift, SwiftUI, JavaScript, Ruby on Rails, React Native
- Databases and Data Stores: MySQL, GraphQL
- DevOps: Google Compute Engine, Google Buckets, API
- Mobile Development: MVVM, async/await, REST, GraphQL, OAuth 20, Bearer tokens, Push Notifications
- Payments: Stripe SDK, Webhooks
- Tools: Xcode, Firebase, Git, App Store Connect
- Platforms: iOS, iPadOS, React Native (Android)
- Swift programming
- Git workflow
Certification
- IBM Generative AI for Executives and Business Leaders
- Online Course – Coursera
Timeline
Mobile Developer
Circleboom
06.2022 - Current
Full Stack Developer
Zarany LLC
09.2021 - Current
Bachelor of Science - Computer Science
Rutgers University
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