Mobile Performance Engineer (iOS) - Remote Work | REF#295310

BairesDev; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

100% remote

USD or local currency

Hardware provided

Flexible hours

Paid time off and holidays

Multicultural environment

Mentorship and growth

Job summary

BairesDev is hiring a Mobile Performance Engineer (iOS) to optimize startup time, memory, and UI responsiveness for iOS apps. You will work remotely with global teams to drive performance improvements across Swift code and system frameworks.

Ideal candidates have 4+ years in mobile or performance engineering, strong Swift and Xcode Instruments skills, and excellence in English. This role offers 100% remote work with flexible hours and competitive USD-based compensation.

Qualifications

• 4+ years in software engineering, mobile development, or performance engineering.
• Proven expertise in optimizing iOS performance (memory/battery).
• Proficiency with Xcode Instruments for profiling.
• Strong Swift and iOS internals.
• Excellent English skills.

Responsibilities

• Analyze and optimize iOS startup time and scrolling performance.
• Monitor and reduce memory usage and battery consumption with profiling tools.
• Identify and resolve performance regressions in Swift and system frameworks.
• Collaborate with teams to implement best practices for resource management.
• Design and execute performance tests to catch regressions before production.

Skills

iOS performance

Swift programming

Xcode Instruments

Memory management

Battery optimization

Profiling tools

English proficiency

Startup optimization

Tools

Xcode Instruments

Job description

At BairesDev®, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley.

Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive significant impact worldwide.

When you apply for this position, you're taking the first step in a process that goes beyond the ordinary. We aim to align your passions and skills with our vacancies, setting you on a path to exceptional career development and success.

Mobile Performance Engineer (iOS) at BairesDev

As a Mobile Performance Engineer (iOS), you will focus on optimizing the efficiency and responsiveness of iOS applications. You will ensure a high-quality user experience by identifying and resolving performance bottlenecks related to memory, battery life, and interface fluidity.

What You’ll Do

• Analyze and optimize iOS application startup time and scrolling performance to ensure a seamless user experience.
• Monitor and reduce memory usage and battery consumption using Xcode Instruments and other profiling tools.
• Identify and resolve complex performance regressions through deep-dive analysis of Swift code and system frameworks.
• Collaborate with development teams to implement best practices for resource management and efficient coding.
• Design and execute performance testing strategies to proactively catch regressions before they reach production.

What We Are Looking For

• 4+ years of experience in Software Engineering, Mobile Development, or Performance Engineering.
• Proven expertise in optimizing iOS application performance, including memory and battery consumption.
• Proficiency in using Xcode Instruments for profiling and identifying performance bottlenecks.
• Strong background in Swift development and iOS system internals.
• Hands‑on experience improving startup times and UI responsiveness for mobile applications.
• Advanced proficiency in English.

How we do make your work (and your life) easier:

• 100% remote work (from anywhere).
• Excellent compensation in USD or your local currency if preferred
• Hardware and software setup for you to work from home.
• Flexible hours: create your own schedule.
• Paid parental leaves, vacations, and national holidays.
• Innovative and multicultural work environment: collaborate and learn from the global Top 1% of talent.
• Supportive environment with mentorship, promotions, skill development, and diverse growth opportunities.

Join a global team where your unique talents can truly thrive and make a significant impact!