Senior Android Performance Engineer - Profiling & Optimization

Quantum Technologies. LLC; Cupertino (CA); On-site; USD 77,000 - 110,000; Full time

Job summary

Quantum Technologies. LLC is seeking a Senior Android Performance Engineer in Cupertino to ensure our flagship Android app delivers a smooth, responsive experience.

You will optimize UI, rendering, and frameworks by identifying bottlenecks and implementing robust performance tests focused on memory, energy, power, and thermal metrics. The role requires 5+ years in Android performance engineering, deep knowledge of Java/Kotlin, and strong profiling tool proficiency.

Qualifications

• BS in Computer Science or equivalent.
• 5+ years in Android performance engineering.
• Expertise in Java/Kotlin for Android.
• Deep understanding of Android OS architecture & performance pitfalls.
• Expert proficiency with Android profiling tools (Profiler, Perfetto, systrace, dumpsys, ADB, Battery Historian)
• Proven ability to diagnose and resolve complex performance issues.
• Adept at measuring and interpreting memory, energy, power, and thermal metrics.
• Strong Android UI optimization skills (View hierarchies, Recycler View, animations, overdraw).
• Strong understanding of mobile system architecture (CPU/GPU, memory, power management).
• Experience with performance testing frameworks (e.g., Android macro benchmark, Microbenchmark, Espresso).
• Effective communication of intricate performance analysis to diverse stakeholders,
• Proven ability to collaborate effectively with a diverse team and thrive in fast-paced, deadline driven environments.

Responsibilities

• Lead Android performance profiling (Jank, ANRs, memory, thermal) across UI, rendering, and app frameworks.
• Optimize & fix Android UI, rendering, and system performance issues.
• Define, track, and report accurate Android performance KPIs (memory, energy, power, thermal).
• Develop, maintain, and integrate performance monitoring tools & automated frameworks .
• Implement & maintain specialized performance tests (unit, integration, end-to-end) for CI/CD.
• Act as Android performance SME, guiding teams, reviewing architecture, and staying current.
• Perform in-depth data analysis, utilizing and developing custom analysis tools for actionable insights.

Skills

Android perf profiling

Java/Kotlin

Android UI optimization

Mobile architecture knowledge

Performance testing

Data analysis

Team collaboration

Communication

Education

BS in Computer Science

Tools

Profiler

Perfetto

systrace

dumpsys

ADB

Battery Historian

Job description

Quantum Technologies. LLC is seeking a Senior Android Performance Engineer in Cupertino to ensure our flagship Android app delivers a smooth, responsive experience.

You will optimize UI, rendering, and frameworks by identifying bottlenecks and implementing robust performance tests focused on memory, energy, power, and thermal metrics. The role requires 5+ years in Android performance engineering, deep knowledge of Java/Kotlin, and strong profiling tool proficiency.