Senior iOS SDK Developer
Summary
Build and maintain an iOS SDK for contactless payments using QR codes and HCE, integrating cryptography and Swift 5 in a fintech product.
General Description
Senior Developer for SDK development in IDEMIA Digital Card Platform. The SDKs enable iPhone devices to use QR codes for contactless transactions on iOS. Work will involve enabling contactless payments on iOS devices. The team develops new features and maintains existing ones in the SDK, which is integrated by clients into mobile applications.
Responsibilities & Technical stack
- Design and implementation of HCE contactless payment functionality
- Knowledge of Kotlin Multiplatform SDK performance and security optimization
- Knowledge of cryptography
- Participation in scrum meetings
- Preparatory work for security audits and functional audits
- Preparation of technical documentation
- Collaboration with external teams
- Collaboration with clients during implementations
- Resolving customer production issues
- Participation in code review
Technologies stack:
- Swift 5
- XCTest
- Git
- Swift Package Manager
- Jenkins
- CI/CD
Other
- Experience in working with iOS SDKs, preferably with payments/fintech solutions
- Experience with Kotlin Multiplatform would be an asset
- Knowledge minimal version of iOS 17.4
- Knowledge of GenAI supported development with tools like GitHub Copilot CLI to create and utilize Skills, Specs and MCP Servers.
- English and French on fluent level are necessary to communicate with the team and stakeholders.
Nice to have:
- Mentoring for junior/mid developers
- Integration with EMV specification
- Knowledge of Android HCE (additional plus)
- Bachelor’s or Master’s degree in Computer Science, Software Engineering, Cybersecurity, or a related field.
- Advanced coursework or certifications in cryptography, mobile security, or secure software development preferred.
The role is based in Paris, France. We are working in a hybrid model with at least three visits at the office per week.