Key Facts

Remote From:

Full time

English

Hard Skills

Swift (Programming Language) Apple IOS Performance Improvement Memory Management OAuth CocoaPods Git (Version Control System) Exception Handling CI/CD Application Programming Interface (API) Backwards Compatibility Release Management Unit Testing Integration Testing Log Monitoring Documentation Generation

Other Skills

•
Collaboration

Roles & Responsibilities

5+ years of native iOS development experience with strong proficiency in Swift
Proven experience building and maintaining iOS SDKs, frameworks, or reusable libraries
Strong understanding of iOS memory management, performance optimization, and platform constraints
Solid experience consuming REST APIs, including authentication, retries, and error handling

Requirements:

Design, develop, and maintain the iOS SDK using Swift
Build SDK APIs that wrap REST services for event reporting and personalization
Ensure SDK stability, performance optimization, memory efficiency, and safe behavior within host applications
Own SDK versioning, releases, and backward compatibility

AccelOne

About AccelOne

AccelOne is a rapidly growing, multinational technology outsourcing company that develops software applications and provides senior and experienced technical staffing from the Americas with US offices in Seattle, Atlanta, Orange County, Bay Area, and Buenos Aires, Argentina. AccelOne applies a dualshore model: local and nearshore staffing approach to delivering its services which focus on building challenging and innovative software products for the world's most innovative sectors, including blockchain where it has years of experience delivering software projects and staffing for some of the world's biggest cryptocurrency custodians, trading and exchange platforms. Our company applies the latest software architecture, development, and design processes and procedures in its delivery. The company's culture of seeking innovative solutions is also applied to building its custom software and systems for itself which enables it to deliver on its company guiding principles and promise of Transparency, Accountability, and Responsiveness.

Company type: Scaleup

Founded: 2018

Company size: 51 - 200

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Job description

Location: Remote
Employment Type: Full-Time / Contract

Role Summary

We are looking for a Senior iOS SDK Engineer to design, develop, and maintain an iOS SDK written primarily in Swift, enabling internal and partner applications to integrate seamlessly with our APIs.

This is a platform / SDK engineering role focused on stability, performance, memory efficiency, and developer experience. You will collaborate closely with Backend, Android, and Web/React Native teams to ensure consistent behavior across platforms.

Responsibilities

• Design, develop, and maintain the iOS SDK using Swift.
• Build SDK APIs that wrap REST services for event reporting and personalization.
• Ensure SDK stability, performance optimization, memory efficiency, and safe behavior within host applications.
• Own SDK versioning, releases, and backward compatibility.
• Build, publish, and maintain SDK distribution using CocoaPods, supporting migration to Swift Package Manager (SPM).
• Develop and maintain unit and integration tests to validate SDK behavior.
• Maintain SDK documentation and developer integration guides.
• Collaborate cross-functionally with Backend, Android, and Web/React Native SDK engineers.

Requirements

• 5+ years of native iOS development experience with strong proficiency in Swift.
• Proven experience building and maintaining iOS SDKs, frameworks, or reusable libraries.
• Strong understanding of iOS memory management, performance optimization, and platform constraints.
• Solid experience consuming REST APIs, including authentication, retries, and error handling.
• Experience with iOS dependency management tools (CocoaPods); familiarity with Swift Package Manager (SPM).
• Proficiency with Git and CI/CD pipelines.

Nice to Have

• Experience migrating iOS SDKs from CocoaPods to Swift Package Manager.
• Experience distributing binary frameworks (XCFrameworks).
• Experience designing SDK-level error models, logging, and diagnostics.
• Familiarity with DocC or similar documentation tooling.
• Experience maintaining Objective-C interoperability in mixed-language environments.
• Experience collaborating across Android or Web/React Native platforms.