IOS Developer

HI5 ELITE PTE. LTD.; Hong Kong; On-site; HKD 600,000 - 1,200,000; Full time

Job summary

HI5 Elite is seeking a seasoned iOS security-focused developer in Hong Kong to build and secure native mobile applications. You will implement secure coding practices, integrate biometric authentication, manage secure enclaves, and ensure strong API security and threat detection.

Qualifications include 4–6 years of iOS experience, proficiency in Swift/Objective-C, and familiarity with OAuth/OpenID/SAML, JWT, and SSDLC. Experience in banking apps and cross‑functional teamwork is valued.

Qualifications

• 4-6 years hands-on iOS development experience.
• Secure mobile app development and secure coding practices required.
• Experience with biometric auth, keychain, and secure enclave.
• Knowledge of OAuth 2.0, OpenID Connect, or SAML and JWT.
• Familiarity with OWASP Mobile Top 10 and API security.
• Background in mobile banking security, fraud/threat detection.
• Proficient in Swift, UIKit/SwiftUI; Objective-C and Xcode experience.
• Knowledge of Android Studio and Kotlin/Java is a plus.

Skills

iOS development

Secure mobile development

Secure coding

Keychain/Secure Enclave

Biometrics (FaceID/TouchID)

MFA/OAuth/OpenID/SAML

JWT/API security

OWASP Mobile Top 10

Mobile banking security

Fraud detection

Mobile threat detection

Zimperium/vKey

SSDLC/Vulnerability remediation

Code scanning

Swift

UIKit/SwiftUI

Objective-C

Xcode

Android Studio

Kotlin/Java

RESTful APIs

Git

Software engineering principles

Design patterns

Debugging

Cross-functional teamwork

HarmonyOS mobile development

Tools

Xcode

Android Studio

Git

Job description

Job Requirements :

• 4-6 years of hands-on experience developing native iOS applications.
• Secure Mobile Application Development, Mobile application security best practices
• Secure coding principles, Data encryption at rest and in transit, Certificate pinning
• Keychain and Secure Enclave on iOS, Biometric authentication (Face ID / Touch ID)
• Multi-Factor Authentication (MFA), OAuth 2.0, OpenID Connect, or SAML
• JSON Web Tokens (JWT), API security, OWASP Mobile Top 10
• Experience in Mobile/Internet banking application, Fraud Detection, Mobile Security – Maleware detection, threat detection.
• Experience in Zimperium, vKey product or any other mobile threat detection protect.
• Secure software development lifecycle (SSDLC), Vulnerability remediation and code scanning
• Strong proficiency in Swift, UIKit and/or SwiftUI, Objective-C, Xcode,
• Proficiency in Android Studio, Android (Kotlin/Java) is added advantage.
• Good understanding of iOS application architecture (MVC, MVVM, Clean Architecture).
• Experience integrating RESTful APIs and JSON-based web services.
• Experience using Git and collaborative source control workflows.
• Good understanding of software engineering principles and design patterns.
• Strong analytical, debugging, and problem-solving skills.
• Development experience in Android / Harmony OS Mobile Development is added advantage.
• Good communication skills to work effectively in cross-functional teams.