Senior IOS Engineer

Puzzle

. Own iOS features from technical design through implementation, testing, release, and production monitoring.

Posted 10/9/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in iOS application development, including proficiency in Swift and SwiftUI, with a strong focus on performance, security, and maintainability. Capable of mentoring engineers and collaborating effectively across teams to enhance mobile application quality and reliability.

Highest-signal resume keywords

IOS Application DevelopmentSwift and SwiftUIAPI IntegrationAutomated TestingMobile Security

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

IOS Application LifecycleConcurrencyNetworkingDebuggingPerformance OptimizationClean Code PracticesProduction MonitoringAccessibilityCI/CDApp Store Release Processes

Soft Skills

Strong CommunicationCollaborationMentoring

Tools & Technologies

Automated Testing ToolsCoding AssistantsAI Development Tools

Industry Keywords

Mobile InterfacesProduction SupportTechnical DesignTechnical Improvement Plan

Tech Stack

Tools & technologies

AndroidiOSSwift

About the role

Key responsibilities & impact

Own iOS features from technical design through implementation, testing, release, and production monitoring.
Build accessible, responsive, and reliable mobile interfaces using modern iOS development practices.
Develop and maintain integrations with APIs, authentication systems, local data storage, and background processes.
Diagnose and resolve crashes, concurrency issues, memory problems, and performance bottlenecks.
Contribute to application architecture and improve development tools and processes.
Write clean, maintainable, well-tested code.
Participate in code reviews and provide constructive technical feedback.
Mentor other engineers and contribute to a collaborative engineering culture.
Participate in a defined production-support or on-call rotation.
Collaborate closely with backend, Android, QA, Product, and Design teams.
Report to the Mobile Engineering Manager or Head of Engineering.
Learn the existing iOS architecture, development practices, product roadmap, and release process.
Ship a tested feature or priority production improvement.
Improve a key reliability or development bottleneck and contribute to a prioritized technical improvement plan.

Requirements

What you’ll need

5+ years of professional software engineering experience, with substantial experience building and shipping native iOS applications.
Strong experience with Swift and SwiftUI and/or UIKit.
Strong understanding of the iOS application lifecycle, concurrency, networking, and API integration.
Experience writing and maintaining automated tests for mobile applications.
Experience diagnosing and resolving production issues, including crashes, memory problems, and performance bottlenecks.
Understanding of mobile security, accessibility, application signing, CI/CD, and App Store release processes.
Ability to independently design, develop, debug, test, and maintain production-quality software.
Strong communication and collaboration skills.
Experience developing software both with and without agentic or generative AI coding tools.
Ability to use coding assistants and AI agents effectively while maintaining engineering quality.
Ability to independently evaluate, debug, and validate AI-generated code.
Accountability for the correctness, security, performance, and maintainability of production code.
Understanding of how to protect proprietary code, credentials, and sensitive information when using AI development tools.
Location: Remote - LATAM.

Benefits

Comp & perks

Competitive Salary: Earn a USD salary that matches your skills and experience.
Paid Time Off: Generous PTO to support your work-life balance and recharge.
Health Insurance Subsidy: Financial assistance to support your healthcare coverage.
Annual Salary Reviews: Structured annual evaluations to recognize and reward performance.
Paid Training & Certifications: Continuous support for professional growth and upskilling.