Available to hire
Hello, I’m Hayouni Saiefeddine, an iOS Developer Engineer with extensive experience building native iOS apps using Swift, SwiftUI and Objective-C. I excel in Clean Architecture, MVVM, and reactive programming with RxSwift and Combine, collaborating in Agile teams to deliver features from concept to production. In my career I have worked with Renault Group apps at NeoSoft, Sodexo projects at NIJI, and ARKEA Group engagements at Onepoint, among others. I thrive on challenges, enjoy writing functional specifications, and love integrating third-party SDKs (e.g., Parse Server, Facebook, Google Maps, PayPal) and modern tooling like Tuist and SPM to improve developer productivity. I am fluent in English, French and Arabic and am seeking new opportunities to contribute, learn, and grow.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Advanced
French
Advanced
Arabic
Fluent
Work Experience
iOS Developer at NeoSoft
December 31, 2023 - September 21, 2025Maintenance and development of Renault Group applications. Created UI components with SwiftUI in a library and exposed them to apps via Swift Package Manager. Wrote functional specifications. Implemented a virtual key feature to lock/unlock, start, and control vehicle lights and horn. Implemented Live Activity for vehicle state of charge. Added an Apple Watch extension for vehicle control and notifications. Built an interactive user guide feature via scanning. Implemented async/await. Used Tuist to generate PBXProj. Implemented theming across targets and migrated to Swift Package Manager.
iOS Developer at NeoSoft
January 1, 2023 - PresentMaintenance and development of Renault Group apps; create UI components with SwiftUI in a library exposed via SPM; write functional specifications; develop a virtual key feature to control the vehicle; live activity for vehicle charge state; Apple Watch extension for vehicle control and notifications; interactive user guide feature via image scan; implement async/await; use Tuist to generate pbxproj; theme management across targets; migrate application to SPM.
iOS Developer at NeoSoft
January 1, 2023 - PresentWorked as an iOS developer on Renault group applications within an agile team of 23 people. Responsibilities included design, development, maintenance, creating UI components with SwiftUI, writing functional specifications, unit tests, demos, feature estimation, code review, and deployment. Utilized Clean Architecture and tools like SwiftLint, CocoaPods, and XcodeGen.
iOS Developer at NeoSoft
January 1, 2023 - PresentWorked as an iOS developer on all Renault group applications within an agile team of 23 people. Responsibilities included design and development, maintenance and addition of new features, UI component creation with SwiftUI, writing functional specifications and maintenance sheets, implementing XcodeGen, preparing demos, feature estimation, unit testing, application deployment on App Center, and code review. Utilized methodologies like Agile with sprints and ceremonies and worked on technologies such as Clean Architecture, Swift, SwiftUI, MVVM, CocoaPods, SPM, JIRA, Confluence, Git, Scrum, Amazon services, Firebase, Combine, XcodeGen, Google Analytics, and Postman.
iOS Developer at NIJI
December 31, 2022 - September 21, 2025Maintenance and development of new features for Sodexo apps; UI redesign; theming across multiple targets; implemented XCodeGen; refactored networking using RxSwift.
iOS Developer at NIJI
December 31, 2022 - July 31, 2025Contributed to maintenance and new feature development for Sodexo and Oneo applications. Tasks included graphical redesign, theming solution for multiple targets, networking refactor, usage of MVVM architecture with RXSwift, and implementation of XcodeGen. Worked in agile teams and used tools including JIRA, Git, CocoaPods, and Crashlytics.
iOS Developer at Onepoint
December 31, 2022 - July 17, 2025Developed and maintained native iOS applications for ARKEA group using MVVM architecture, RXSwift/RXCocoa, Protocol Oriented Programming, dependency injection with Swinject, and reusable code with pods. Maintained iOS frameworks/pods, wrote technical and functional documentation, redesigned libraries, implemented data recovery system with Firebase, developed online payment validation features, integrated pinning certificate solution, conducted code reviews, and actively participated in agile ceremonies. Utilized Objective-C, Swift, MVVM, SVN, MVC, Cordova, Xcode, JSON, XCTest, CocoaPods, TestFlight, Crashlytics, Alamofire, JIRA, Confluence, Zeplin, Git, Scrum, InVision, Pods, RXCocoa, RXSwift, SwiftLint, Swinject, SwiftGen, XCFramework.
iOS Developer at NIJI
December 31, 2022 - July 17, 2025Worked as an iOS developer for Sodexo and Oneo in agile teams, focusing on maintenance and development of new features, UI redesign, thematization solutions, networking refactor, and XcodeGen implementation. Developed Oeneo applications using MVVM architecture with RXSwift. Participated in agile ceremonies. Utilized tools and languages such as Swift, MVVM, iOS, Xcode, JSON, XCTest, CocoaPods, Crashlytics, Alamofire, RXSwift, JIRA, Confluence, Git, Scrum, Poeditor, Moya, Crowdin.
iOS Developer at NIJI
January 1, 2022 - September 21, 2025iOS development for Sodexo; maintenance and feature development; theming across multiple targets; refactor/networking using RxSwift; implement XcodeGen; contribute to app quality and performance.
iOS Developer at Mobelite
December 31, 2019 - September 21, 2025iOS development for Elsevier projects; SWIFT/Objective-C; built a framework for a generic quiz; REST networking; localization; CoreData; JSON; unit tests; Crashlytics; Jenkins. Key projects included Pflege (nursing student app), Kscore (MASCC score calculator), surviveMed, Netter, and Projeqtor.
iOS Developer at Mobelite
December 31, 2019 - July 31, 2025Worked on iOS projects including medical and educational apps using Swift and Objective-C. Developed frameworks, integrated CoreData and Crashlytics, fixed bugs, improved UI/UX, wrote unit and UI tests, and participated in agile ceremonies with a team of developers. Technologies included MVC, JSON, Xcode, CocoaPods, and various testing and analytic tools.
iOS Developer at Mobelite
December 31, 2019 - July 17, 2025Worked on multiple iOS projects at Elsevier GmbH, using Swift and Objective-C to create mobile applications including a generic quiz framework. Responsibilities included development, planning, integration of CoreData, fixing bugs and memory leaks, writing unit tests, integration of Crashlytics, communication with REST APIs, code reviews and participation in agile ceremonies with a team of 15 people. Projects involved prevention and management application for febrile neutropenia, medical education applications, and construction site monitoring applications. Technologies used were Objective-C, Swift, MVC, CoreData, XCTest, CocoaPods, JIRA, Confluence, Git, Scrum.
iOS Developer at Mobelite
January 1, 2019 - September 21, 2025iOS development for Elsevier GmBH; created a framework for a generic quiz; localization; CoreData; REST API integration; unit tests; crash reporting with Crashlytics.
iOS Developer Engineer at Enano-Tech
December 31, 2017 - September 21, 2025Developed iOS applications using Objective-C and Swift; worked with Storyboard, Auto Layout; contributed to app architecture, memory management and bug fixes.
iOS Developer Engineer at Enano-Tech
December 31, 2017 - July 31, 2025Developed iOS mobile applications using Objective-C and Swift. Hands-on experience with Storyboard, auto layout, and interface builder. Created applications for organic product sales, booking, and project management. Implemented barcode scanning, online payment, Google Maps integration, and notifications. Used REST APIs, pods/cartage for third-party libraries, and continuous bug fixing.
iOS Developer Engineer at Enano-Tech
December 31, 2017 - July 17, 2025Developed iOS mobile applications utilizing Objective-C and Swift, working with Storyboard, Auto Layout, Auto Resizing, and Interface Builder. Projects included applications for organic product sales with features like barcode scanning, notifications, and Google Maps integration; booking application with online payment, UI implementations, and REST web service integration; and project management application with task tracking and notifications. Duties involved bug fixing, UI design, use of third-party frameworks via CocoaPods and Cartegraph, and communication with RESTful APIs.
iOS Developer at Enano-Tech
January 1, 2017 - September 21, 2025Worked on iOS apps in Objective-C and Swift; experience with Storyboard, auto layout, delegates and extensions; CoreData; crash reporting; CI exposure ( Jenkins ); multiple project contributions including Le Club Bio, Kscore, surviveMed, Netter.
Education
National Diploma of Engineer at Gabes National Engineering School (ENIG)
January 1, 2012 - December 31, 2015Preparatory studies for the Engineering-Technology cycle at Preparatory Institute for Engineering Studies of Monastir (IPEIM)
January 1, 2010 - December 31, 2012National Diploma of Engineer at Gabes National Engineering School (ENIG)
January 1, 2012 - December 31, 2015Preparatory studies for the Engineering-Technology cycle at Preparatory Institute for Engineering Studies of Monastir (IPEIM)
January 1, 2010 - December 31, 2012National Diploma of Engineer in Communications and Networks at Gabes National Engineering School (ENIG)
January 1, 2012 - January 1, 2015Preparatory studies for the Engineering-Technology cycle at Preparatory Institute for Engineering Studies of Monastir (IPEIM)
January 1, 2010 - January 1, 2012National Diploma of Engineer in Communications and Networks at Gabes National Engineering School (ENIG)
January 1, 2012 - January 1, 2015Preparatory studies for the Engineering-Technology cycle at Preparatory Institute for Engineering Studies of Monastir (IPEIM)
January 1, 2010 - January 1, 2012Qualifications
Industry Experience
Software & Internet, Financial Services, Healthcare, Real Estate & Construction, Transportation & Logistics, Computers & Electronics, Professional Services, Media & Entertainment, Education
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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