iOS Developer (OAuth, SAML, JWT, OWASP, Zimperium, SSDLC, MVC, MVVM, JSON)

EVYONIC SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

EVYONIC SOLUTIONS PTE. LTD. seeks an experienced iOS security engineer to develop native iOS applications with a strong focus on security.

The role requires hands-on expertise in Swift, UIKit/SwiftUI, and secure coding practices, including Keychain, Secure Enclave, and biometric authentication. You will work on secure mobile banking features, API security, and threat detection using tools like Zimperium or vKey, while collaborating with cross-functional teams in a fast-paced environment.

Qualifications

• Minimum 5 years of hands-on iOS development experience.
• Expert in secure mobile app development and security best practices.
• Proficient in Swift, UIKit/SwiftUI, Objective-C, and Xcode.
• Experience with Keychain, Secure Enclave, and biometric authentication.
• Familiar with MFA, OAuth 2.0, OpenID Connect, or SAML.
• Knowledge of JWT, API security, and OWASP Mobile Top 10.
• Experience in mobile banking apps, fraud detection and mobile security.
• Experience with threat detection tools like Zimperium and vKey.
• Understanding SSDLC, vulnerability remediation, and code scanning.
• Strong analytical, debugging, and cross-functional collaboration skills.
• Familiarity with Android development is a plus.

Skills

iOS development

Secure mobile development

Security best practices

Biometric authentication

MFA / OAuth / OpenID / SAML

JWT / API security

Threat detection

Zimperium / vKey

SSDLC / code scanning

Swift / UIKit / SwiftUI / Objective-C

Android knowledge (Kotlin/Java)

RESTful APIs integration

Git / collaboration

Software design patterns

Analytical / debugging

Cross-functional teamwork

Tools

Zimperium

vKey

Android Studio

Xcode

Git

Job description

Requirements:

• 5 + 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 protects.
• 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.