Senior iOS Developer with Swift, Mobile SDK Platform

Remote.Bulgaria
Remote.Georgia
Remote.Kazakhstan
Remote.Poland
Алмати
Астана
Белград
Варна
Варшава
Вроцлав
Єреван
Клуж-Напока
Краків
Ларнака
Лодзь
Люблін
Рига
Софія
Тбілісі

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Project overview

The project focuses on modernizing a mobile SDK used for digital fraud prevention and customer authentication in financial services. You will contribute to building a scalable, secure, and high performance SDK designed for integration into external applications across multiple environments.

Team

You will work in a distributed team of iOS engineers, backend engineers, and security specialists. The team collaborates closely across regions, following shared engineering standards and participating in design reviews and system level discussions.

Position overview

We are looking for a Senior iOS Developer who can lead technical design and implementation for an iOS SDK modernization initiative. You will define architecture, validate migration strategies, develop proof of concept components, and establish engineering standards for distribution, testing, and security.

Technology stack

Swift, Objective C, Combine, async await, XCFramework, Swift Package Manager, CocoaPods, Keychain, Secure Enclave, App Attest, DeviceCheck, XCTest, XCUITest, Instruments, BGTaskScheduler

Responsibilities

Lead technical design and implementation of iOS SDK components
Define and maintain architecture aligned with enterprise standards
Develop proof of concept solutions to validate design approaches
Ensure SDK compatibility across multiple iOS versions and devices
Establish guidelines for SDK distribution, integration, and versioning
Collaborate with cross functional teams on security and compliance requirements
Optimize application performance, memory usage, and energy efficiency
Implement secure coding practices and support data protection mechanisms
Drive testing strategies including unit, integration, and UI testing
Contribute to code reviews and support engineering best practices

Requirements

8+ years of experience in iOS development
Strong proficiency in Swift and experience with Objective C interoperability
Experience building and maintaining reusable iOS SDKs or frameworks
Understanding of framework distribution using XCFramework, Swift Package Manager, and CocoaPods
Knowledge of static and dynamic linking, module stability, and library evolution
Experience managing dependencies and optimizing application size and performance
Understanding of iOS security concepts including Keychain, Secure Enclave, and certificate pinning
Familiarity with privacy and App Store compliance standards
Experience with background execution models and related constraints in iOS
Knowledge of performance analysis tools such as Instruments
Experience with testing frameworks including XCTest and XCUITest
Familiarity with code signing, provisioning, and distribution processes