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Performance Engineer Jobs in California (NOW HIRING)

Google

Performance Engineer

San Jose, CA · On-site

... the performance benefit of changes. The Core team builds the technical foundation behind Google's flagship products. We are owners and advocates for the underlying design elements, developer ...

Anthropic

Performance Engineer

San Francisco, CA · On-site

$280K - $850K/yr

As a Performance Engineer, you'll be responsible for identifying these problems, and then developing systems that optimize the throughput and robustness of our largest distributed systems. Strong ...

Anthropic

Performance Engineer, GPU

San Francisco, CA · On-site

As a GPU Performance Engineer, you'll architect and implement the foundational systems that power Claude and push the frontiers of what's possible with large language models. You'll be responsible ...

Conductor

Senior Performance Engineer

San Jose, CA · On-site

$138 - $206/hr

We are seeking a Senior LLM Systems Performance Engineer to build representative AI environments, characterize emerging workloads, and drive performance analysis for next‑generation AI platforms.

Gotion, Inc.

Pack Performance Engineer

Irvine, CA · Hybrid

Pack Performance Engineer Battery Systems / Pack Engineering Department: Battery Systems / Pack Engineering Reports to: Head of Battery Systems Engineering (or Pack Engineering Lead) Level: Senior ...

Gotion, Inc.

Pack Performance Engineer

Irvine, CA · On-site

Pack Performance Engineer Battery Systems / Pack Engineering Department: Battery Systems / Pack Engineering Reports to: Head of Battery Systems Engineering (or Pack Engineering Lead) Level: Senior ...

Axiom Space

System Performance Engineer

Hercules, CA · On-site

$120 - $170/hr

Our mission-driven team is seeking a bold and dynamic System Performance Engineer who is fueled by high accountability, execution horsepower, and driven to understand our world, science/technology ...

OpenAI

Training Performance Engineer

San Francisco, CA · On-site

$250K - $445K/yr

About the Role As a Training Performance Engineer, you'll drive efficiency improvements across our distributed training stack. You'll analyze large-scale training runs, identify utilization gaps, and ...

Genmo

GPU Performance Engineer

San Francisco, CA · On-site

We're seeking a GPU Performance Engineer to squeeze every last FLOP from our H100 infrastructure and optimize our model serving stack to its absolute limits. The Role You'll be our performance ...

Slope

Training Performance Engineer

San Francisco, CA · On-site

$250 - $460/hr

About the Role As a Training Performance Engineer, you'll drive efficiency improvements across our distributed training stack. You'll analyze large-scale training runs, identify utilization gaps, and ...

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All JobsPerformance Engineer JobsPerformance Engineer Jobs in California

Performance Engineer information

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How much do performance engineer jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for performance engineer in California is $59.32, according to ZipRecruiter salary data. Most workers in this role earn between $48.65 and $67.12 per hour, depending on experience, location, and employer.

What is a performance engineer?

A Performance Engineer is a professional who ensures that software applications and systems run efficiently and meet performance requirements. They analyze, test, and optimize system performance by identifying bottlenecks, conducting load and stress testing, and recommending improvements. Performance Engineers work closely with development and operations teams to ensure that applications can handle expected user loads and deliver a smooth user experience. Their work is crucial in preventing slowdowns, crashes, and other performance-related issues in production environments.

What is performance engineering?

Performance engineering is the development of software solutions for specific business problems. As a performance engineer, your responsibilities are to identify issues, whether for a particular company or an industry, and develop software that directly addresses them. To become a performance engineer, you need a bachelor’s degree in computer science or computer engineering, two to five years of information technology (IT) work experience, and excellent problem solving skills. Organizations like HyPerformix offer professional certifications, like their Enterprise Performance Engineering program, which can significantly boost your qualifications. Your additional job duties include performing routine maintenance and service, experimenting with possible solutions in the test environment, and monitoring system performance.

What are the key skills and qualifications needed to thrive as a performance engineer, and why are they important?

To thrive as a Performance Engineer, you need strong analytical abilities, a solid understanding of software architecture, and experience with load testing and profiling, often supported by a degree in computer science or a related field. Familiarity with tools such as JMeter, LoadRunner, New Relic, and monitoring systems, as well as scripting languages, is typically required. Excellent problem-solving, attention to detail, and effective communication skills help distinguish top performers in this role. These skills and qualities are crucial for identifying system bottlenecks, optimizing performance, and ensuring a seamless user experience.

What are some common challenges performance engineers face when optimizing complex systems?

Performance Engineers often encounter challenges such as identifying bottlenecks in multi-tiered or distributed systems, balancing trade-offs between speed and resource consumption, and ensuring that performance improvements do not compromise system reliability. They frequently work with cross-functional teams, requiring strong communication skills to translate technical findings into actionable recommendations. Staying up-to-date with evolving tools and best practices is also essential, as technology stacks and performance benchmarks continually change.

What is the difference between Performance Engineer vs Software Test Engineer?

AspectPerformance EngineerSoftware Test Engineer
Primary FocusOptimizing system performance, load testing, scalabilityFunctional testing, bug identification, feature validation
Required SkillsPerformance testing tools, scripting, system analysisTest case design, automation, defect tracking
Work EnvironmentDevelopment teams, QA, DevOpsQA teams, development teams
CertificationsPerformance testing certifications (e.g., JMeter, LoadRunner)ISTQB, software testing certifications

Performance Engineers focus on system performance, scalability, and load testing, ensuring applications run efficiently under stress. Software Test Engineers primarily verify functionality and identify bugs. While both roles require testing skills, Performance Engineers specialize in performance metrics and optimization, making their roles complementary but distinct.

How much do performance engineers make in the US?

Performance engineers in the US typically earn between $80,000 and $130,000 annually, depending on experience, location, and industry. Senior roles or those with specialized skills in tools like JMeter or LoadRunner can command higher salaries, often exceeding $150,000.
More about Performance Engineer jobs

What are the most commonly searched types of Performance Engineer jobs in California?

The most popular types of Performance Engineer jobs in California are:

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For Performance Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Performance Engineer jobs in California look for?

The top searched job categories for Performance Engineer jobs in California are:

What cities in California are hiring for Performance Engineer jobs?

Cities in California with the most Performance Engineer job openings:

What are popular job titles related to Performance Engineer jobs in CA?

For Performance Engineer jobs in CA, the most frequently searched job titles are:

Performance Engineer jobs near you
Infographic showing various Performance Engineer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 12% Part Time, and 2% Contract. Highlights an 86% Physical, 2% Hybrid, and 12% Remote job distribution, with an average salary of $123,381 per year, or $59.3 per hour.

Performance Engineer

EROS Technologies, Inc.

Sunnyvale, CA • On-site

Contractor

Re-posted 23 days ago

Job description

Job Description

Hi,

Hope you doing great.

We have an urgent positions with our direct client, kindly send me your updated resume if suitable for following job des.

Title: Performance Engineer

Location: Cupertino CA & Sunny Vale, CA

Duration: Long Term


Note: Do provide Visa copy as well as I-94 Copy (not for USC and GC).


Job Requirements:

Must have:

Non functional requirements collection from different stake holders

Build the work load model by using production logs and Splunk

Test script development by using different tools like Apache Jmeter and HP Load runner or App perfect

Design the different set of scenarios like peak load test, endurance test, stress test, scalability test etc.

Execute different types of test runs

Client Side and Server Side Reports, Collate the reports, correlate the test results

Monitor the server side metrics through Hubble, Foglight, HP Performance manager

Trouble shoot the issues by co-ordinating with dev and capacity teams

Provide an effective test results analysis to tune the application performance

Nice to have:

Client and server side profiling by using different set of tools like developer tools, J profiler and Dynatrace

Knowledge on Mongo DB and MMS, OEM, AWR reports

Integration knowledge on Jenkins, Jmeter, Splunk and the monitoring tools to have a single dashboard structure

Performance Infrastructure (Tools, Scripting to collate and corelate logs, CI background, Unix Background, Add value to the analysis, Know how to investigate performance issues)

APM, CI kind of work with custom tools etc. Jenkins, Selenium + JMeter kind of use case based testing.


Please e-mail me if I miss your phone call

------------------------------------------------------------------

Thanks & Regards

Tabish Hamid

516-545-0747

Sr. Talent Acquisition Executive

EROS Technologies Inc.

16192 Coastal Highway

Lewes, DE- 19958

Additional Information
  • Do provide Visa Copy as well as I-94 copy. (not for USC)
  • All your information will be kept confidential according to EEO guidelines.


Eros Technologies logo

About Eros Technologies

Sourced by ZipRecruiter

We create a culture that inspires us to work smart, together. Experience Eros is dedicated to delivering services to all our Fortune 100 to Fortune 500, SME, and Enterprise customers in the USA, Canada, and India. Eros Technologies is a leading Global Consulting and IT services company, offering a wider variety of solutions customized to the needs of demanding industries and diversified business environments. We help clients move forward in every part of their businesses, from strategic planning to day-to-day operations by enhancing our consulting and outsourcing expertise with alliances and other capabilities. Eros can mobilize the right people, skills, and technologies to help its clients improve their performances. We create Solutions with the aim of increasing your organization’s efficiency, productivity, and profits.

Industry

Human resources consulting services

Company size

1,001 - 5,000 Employees

Headquarters location

Lewes, DE, US

Year founded

2015

Social media

Facebook

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