Senior iOS SDK Developer

IDEMIA Group; Paris; Sur place; EUR 60 000 - 80 000; Plein temps

Résumé du poste

IDEMIA Group is seeking a Senior Developer in Paris to enhance their Digital Card Platform. The role involves designing contactless payment solutions and optimizing SDK performance. Candidates must have experience with iOS SDKs and proficiency in Swift and Kotlin Multiplatform. Fluency in English and French is required. IDEMIA fosters diversity and offers a hybrid work model, ensuring at least three days in the office each week.

Qualifications

• 5+ years of experience in iOS development with SDKs.
• Strong knowledge of contactless payment functionality.
• Familiarity with Agile methodologies.

Responsabilités

• Design and implement HCE contactless payment functionality.
• Collaborate with external teams and clients.
• Prepare technical documentation and security audits.

Connaissances

Experience with iOS SDKs

Proficiency in Swift 5

Knowledge of cryptography

Fluent in English and French

Experience with Kotlin Multiplatform

Formation

Bachelor’s or Master’s degree in Computer Science

Outils

Git

Jenkins

GitHub Copilot

Description du poste

IDEMIA Secure Transactions, a division of IDEMIA Group, is the leading technology provider making it safer and easier to pay and connect. With unmatched expertise in cryptography and credential issuance, IST is trusted by over 2,000 financial institutions, mobile operators, automotive manufacturers, and IoT providers worldwide. Every day, IST secures billions of essential transactions, ensuring the highest levels of data protection and convenience.

General Description

Currently we are looking for a Senior Developer to join one of the SDK development teams in the IDEMIA Digital Card Platform. The SDKs provided for iPhone devices enable the use of QR codes. We seek a developer who will work with us to enable contactless transactions on iOS devices.

The team develops new features and maintains the quality of existing ones in our SDK. This solution is then integrated by our clients into their 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 of 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 at a 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

Paris, France. We are working in a hybrid model with at least three visits to the office per week. If you prefer to work fully on site, our office is always open for you.

We value the diversity of our teams and welcome people from all walks of life, regardless of how they look, where they come from, who they love, or what they think.