Mobile SDK Engineer (iOS)

Job Title - iOS Engineer / Mobile SDK Engineer

Job Location - Baner, Pune

As a small, highly-skilled team, each engineer has a significant impact on our product direction and the opportunity to drive innovation across multiple platforms. Our client is looking to expand our team with experienced engineers who are passionate about creating secure, high-performance mobile solutions at scale.

Role Overview

As a iOS Engineer, you will:

• Play a crucial role in designing, developing, and maintaining our secure SDK solutions across Apple platforms
• Work on products that impact over 1 million daily active users, requiring a focus on performance, reliability, and scalability
• Leverage your expertise in both UIKit and SwiftUI to create separate SDK implementations that cater to different developer preferences and application requirements
• Collaborate with security experts, product managers, and other engineers to deliver SDKs that meet the highest standards of security, performance, and usability

Key Responsibilities

• Lead the architecture, design, and implementation of secure SDK components for iOS, macOS, and VisionOS platforms
• Develop and maintain separate UIKit and SwiftUI SDK implementations with feature parity
• Establish best practices for secure coding, API design, and SDK integration.
• Collaborate with security teams to implement robust encryption and data protection measures
• Drive performance optimization initiatives to minimize SDK latency and resource usage
• Create comprehensive documentation and sample applications to facilitate SDK adoption
• Provide technical leadership across SDK development initiatives
• Break down complex epics into manageable features and drive the full development lifecycle from planning to release
• Stay current with Apple platform updates, security standards, and best practices
• Participate in code reviews, architectural discussions, and technical planning
• Work closely with QA to ensure SDK reliability across various device configurations and OS versions
• Engage directly with customers to gather feedback, provide technical guidance, and improve SDK usability and integration experience
• Write clean, testable code following modern architectural patterns such as MVI (Model-View-Intent)

Qualifications Required

• 8+ years of professional iOS development experience
• Deep understanding of UIKit, SwiftUI, and the differences between them
• Proven experience with iOS performance optimization techniques
• Expertise in writing testable code and implementing modern architectural patterns (such as MVI)
• Strong knowledge of iOS security concepts (keychain, secure enclave, encryption, etc.)
• Extensive experience with WebView implementation and optimization
• Experience with modern Swift programming techniques and patterns
• Proficiency with dependency management, modularization, and API design
• Understanding of binary compatibility, semantic versioning, and SDK lifecycle management
• Experience integrating with RESTful APIs and implementing network security best practices
• Excellent debugging and performance optimization skills
• Excellent communication skills for effective customer interaction and ability to document complex technical concepts clearly

Preferred

• Experience with VisionOS development
• Knowledge of cryptography principles and implementations
• Familiarity with mobile security standards (OWASP, NIST, etc.)
• Experience with CI/CD pipelines for SDK deployment and ability to automate release processes
• Experience with backend API development and deployment
• Extensive experience building and maintaining SDK libraries
• Contributions to open-source projects or published technical content
• Experience with cross-platform development (React Native, Flutter, etc.) integration
• JavaScript knowledge and experience with WebView-native bridge implementations
• Understanding of Apple's App Store guidelines and submission process
• Experience with automated testing strategies for SDKs

Technologies

• Swift, Objective-C
• UIKit, SwiftUI
• Xcode, Swift Package Manager, CocoaPods
• Git, CI/CD tools
• Security frameworks (CryptoKit, CommonCrypto)
• Networking (URLSession, Combine)
• WebView, WKWebView, JavaScript
• Testing frameworks (XCTest, Quick/Nimble)