Performance Engineer — Systems Profiling & Optimization

Google; New York (NY); On-site; USD 174,000 - 252,000; Full time

Job summary

Google’s San Jose and New York offices seek a Performance Engineer to optimize large-scale software, focusing on fast, efficient systems. You will work across teams to improve core libraries, profile workloads, and drive performance improvements.

The role requires strong C++ and compiler know-how, 5 years of software development, and experience scaling systems. You’ll mentor junior engineers, review designs, and help shape performance strategies across Google’s infrastructure.

Qualifications

• Bachelor’s degree or equivalent practical experience.
• 5 years of software development experience in one or more programming languages, and with data structures/algorithms.
• 3 years of experience testing, maintaining, or launching software products, and 1 year of experience with software design and architecture.
• Experience with C++ programming language.
• Experience with compiler technologies.

Responsibilities

• Write and test product or system development code.
• Participate in, or lead design reviews with peers and stakeholders to decide amongst available technologies.
• Design and implement improvements to fundamental library code and runtimes, maximizing resource utilization across the fleet.
• Design and implement telemetry and profiling methods, as needed.
• Quantify the fleet-scale impact of optimizations using statistical analysis.

Skills

C++ programming

Data structures/algorithms

Mentoring

Performance mindset

Education

Bachelor’s degree

Master’s degree

PhD

Tools

Compiler technologies

Job description

Google’s San Jose and New York offices seek a Performance Engineer to optimize large-scale software, focusing on fast, efficient systems. You will work across teams to improve core libraries, profile workloads, and drive performance improvements.

The role requires strong C++ and compiler know-how, 5 years of software development, and experience scaling systems. You’ll mentor junior engineers, review designs, and help shape performance strategies across Google’s infrastructure.