Senior iOS Developer at Moniepoint Inc.

Job Summary

• We are seeking a Senior iOS Developer to join our payments engineering team.
• You will play a key role in designing and developing a robust, secure, and scalable iOS SDK that powers seamless in-app transactions across our partner ecosystem.
• You will work closely with product managers, backend engineers, and QA teams to deliver high-quality SDKs that are easy to integrate, developer-friendly, and compliant with the latest security standards (PCI DSS, EMV 3DS, etc.).

Key Responsibilities

• Design, build, and maintain the iOS SDK used by merchants and partners to accept payments.
• Develop secure and scalable SDK modules for payment authorization, card/token management, and EMV 3DS authentication.
• Collaborate with backend/API engineers to integrate REST/GraphQL/gRPC APIs.
• Ensure optimal performance, quality, and responsiveness of the SDK across different iOS devices and versions.
• Implement unit tests, UI tests, and CI/CD pipelines to maintain high code quality.
• Drive architectural decisions for modular, testable, and reusable code.
• Stay current with Apple iOS SDK, Swift, Xcode, UIKit, and new payment-related APIs (Apple Pay, Passkeys, etc.).
• Work closely with security teams to address vulnerabilities and follow mobile security best practices.

Qualifications

• 5+ years of experience in iOS development using Swift (Objective-C is a plus).
• Strong experience building and maintaining SDKs or Frameworks for third-party integration.
• Solid understanding of iOS architecture patterns – MVVM, VIPER, etc.
• Deep knowledge of networking, local storage, and threading on iOS.
• Experience with integrating and handling payments, EMV, or PCI-compliant flows.
• Hands-on experience with Unit/UI Testing, mocking frameworks, and XCTest.
• Familiarity with App Store guidelines, Apple’s human interface guidelines, and SDK distribution (CocoaPods/SPM/XCFrameworks).
• Good understanding of security principles (JWE/JWT, keychain access, biometric authentication, TLS pinning).

Preferred Qualifications:

• Experience working on Payment Gateways, Wallets, or Banking Apps.
• Exposure to mobile CI/CD (Fastlane, Bitrise, GitHub Actions).
• Contributions to open-source SDKs or payment libraries.