Senior iOS Engineer, Contractor (Brazil)

Owlet Baby Care

Brazil Remote permanent

Posted: October 6, 2025

Required Skills

Job Description

Primary Responsibilities

• Design, build, and maintain customer-facing iOS applications with a focus on quality and performance
• Collaborate with Product and Design teams to define, design, and deliver new features
• Take ownership of the iOS codebase architecture, ensuring scalability, reliability, and maintainability
• Partner with backend and firmware engineers to design end-to-end solutions
• Mentor junior engineers through code reviews, pair programming, and technical guidance
• Advocate for coding standards, testability, and performance best practices within the team
• Identify and resolve complex technical issues, including debugging and performance optimization
• Stay current with iOS ecosystem trends and proactively recommend improvements
• Participate in Agile ceremonies, contributing to sprint planning, estimation, and retrospectives
• Maintain clear technical documentation for features, architecture decisions, and best practices

Requirements:
• 5+ years of iOS app development experience, with a portfolio of shipped apps
• Expertise in Swift and SwiftUI, with deep knowledge of iOS SDK frameworks and Apple’s design guidelines
• Strong computer science fundamentals: data structures, algorithms, concurrency, memory management
• Proficient in REST APIs, JSON data handling, and integrating third-party SDKs
• Experience with unit/UI testing, CI/CD pipelines, and Agile development practices
• Skilled in debugging, profiling, and optimizing mobile applications
• Strong problem-solving and communication skills, able to work effectively in cross-functional teams
• Ability to rapidly prototype and iterate toward production-ready features

Bonus Skills

• Experience with iOS Bluetooth Low Energy (BLE) APIs
• Familiarity with cross-platform libraries
• Experience working with Google Firebase APIs

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