ZipRecruiter

Log In

1

Senior Performance Engineer Jobs in California (NOW HIRING)

Amazon

Sr Performance Validation Engineer

Sunnyvale, CA · On-site

As the Senior Pre-Silicon Performance Validation Engineer, you will be responsible for validating and verifying the performance of complex silicon designs during the pre-silicon phase, ensuring that ...

Apple

Sr. WebKit Performance Engineer

San Diego, CA · On-site

$148K/yr

The WebKit Performance team is looking for an engineer with a passion for software optimization to support one of the most heavily used frameworks and applications in the world. WebKit is the system ...

Apple

Sr. WebKit Performance Engineer

San Diego, CA · On-site

$175K - $308K/yr

The WebKit Performance team is looking for an engineer with a passion for software optimization to support one of the most heavily used frameworks and applications in the world. WebKit is the system ...

Qualcomm

System Performance Engineer, Senior

San Diego, CA · On-site

$122K - $183K/yr

... engineering, etc.) to implement optimal power, performance, and thermal solutions. * Provide ... Prepare clear and concise reports and recommendations for product teams up to senior executives to ...

Apple Inc.

Sr. WebKit Performance Engineer

San Diego, CA · On-site

$175K - $308K/yr

San Diego, California, United States Software and Services The WebKit Performance team is looking for an engineer with a passion for software optimization to support one of the most heavily used ...

Qualcomm

System Performance Engineer, Senior

San Diego, CA · On-site

$110K - $151K/yr

In the role of System Performance Engineer, you will collaborate with software, hardware, and ... senior executives to help drive business decisions and next generation architecture choices. • ...

Nvidia

Senior Systems Performance Engineer

Santa Clara, CA

$122K - $167K/yr

We are now looking for a Senior Validation Engineer in the DGX Server Product Engineering Team. In ... System architecture, design, performance modelling, estimation across new models and new packages.

NVIDIA AI

Senior Systems Performance Engineer

Santa Clara, CA · On-site

$121K - $166K/yr

We are looking for a Senior Validation Engineer in the DGX Server Product Engineering Team. In this ... System architecture, design, performance modelling, estimation across new models and new packages.

New

previous page

Showing results 41-60

All JobsPerformance Engineer JobsSenior Performance Engineer JobsSenior Performance Engineer Jobs in California

Senior Performance Engineer information

See California salary details

$58.7K

$124.9K

$181.1K

How much do senior performance engineer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for senior performance engineer in California is $124,900.00, according to ZipRecruiter salary data. Most workers in this role earn between $103,100.00 and $141,600.00 per year, depending on experience, location, and employer.

What is a senior performance engineer?

A Senior Performance Engineer is responsible for optimizing the performance, scalability, and reliability of software applications and systems. They analyze performance metrics, conduct load and stress testing, identify bottlenecks, and work with development teams to implement improvements. This role requires expertise in profiling tools, performance tuning, and system architecture to ensure optimal user experience. Additionally, they may establish best practices for performance testing and contribute to overall system design decisions.

What does a senior performance engineer do?

A Senior Performance Engineer typically oversees performance testing cycles, analyzes system metrics, and collaborates with development and operations teams to diagnose and resolve performance issues. Daily tasks often include designing and executing test plans, monitoring application behavior under load, and recommending improvements for scalability and efficiency. They also participate in code reviews and architectural discussions to identify potential bottlenecks early in the development cycle. Consistent communication with both technical and non-technical stakeholders is key, ensuring that performance goals align with business objectives.

What skills and qualifications are needed to thrive as a senior performance engineer?

To thrive as a Senior Performance Engineer, expertise in performance analysis, capacity planning, and system optimization—often backed by a degree in computer science or a related field—is crucial. Familiarity with tools such as LoadRunner, JMeter, APM solutions, profiling tools, and relevant certifications like CPPE or PMP are highly beneficial. Strong problem-solving, collaboration, and clear communication skills are vital for identifying bottlenecks and working closely with cross-functional teams. These combine to ensure robust system performance, user satisfaction, and reliable application scalability in demanding technical environments.

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

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

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

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

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

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

What cities in California are hiring for Senior Performance Engineer jobs?

Cities in California with the most Senior Performance Engineer job openings:

Senior Performance Engineer jobs near you
Infographic showing various Senior Performance Engineer job openings in California as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 82% Full Time, 13% Part Time, 1% Temporary, and 2% Contract. Highlights an 79% Physical, 2% Hybrid, and 19% Remote job distribution, with an average salary of $124,900 per year, or $60 per hour.

Senior Performance Advertising Engineer

Redwood City, CA • On-site

PubMatic
Internet and IT • 501 - 1,000 employees
Learn more about PubMaticexternal

$127K - $175K/yr

Full-time

Medical, Dental, Vision, Life, PTO

Re-posted 22 days ago

Job description

Role: Hybrid in Redwood City, CA, or New York, NY (Will consider Remote for the right candidate)
Must have: Experience in performance advertising, programmatic bidding, or large-scale user-conversion optimization loops
PubMatic is the leading AI-powered ad tech company delivering measurable advertising performance through an intelligent, unified platform that connects buyers, publishers, data partners, and commerce media across CTV, mobile app, and omnichannel environments.
About the Role:
We are seeking a Senior Performance Advertising Engineer to own and drive the optimization of our buyer-side and performance marketing systems. In this role, you will be directly responsible for designing algorithms, building data systems, and refining optimization loops that drive Return on Ad Spend (ROAS) for our Advertisers and Agencies. You will own the technical architecture and end-to-end evaluation, implementation, and scaling of robust data pipelines for attribution data. This position spans our complete omnichannel environment, requiring expert-level performance engine development across Mobile App (including privacy-aware frameworks like SKAdNetwork and Privacy Sandbox), Video, Connected TV (CTV), and Desktop environments.
What You'll Do:
  • ROAS Optimization & Algorithmic Design: Develop, benchmark, and deploy real-time bidding (RTB) algorithms, pacing controls, and predictive models aimed squarely at maximizing ROAS and conversion tracking across all screens (CTV, Mobile App, Video, and Desktop).
  • Attribution Data Pipelines: Design, evaluate, and implement scalable, low-latency streaming and batch data pipelines that ingest, validate, and process complex conversion and multi-touch attribution (MTA) datasets.
  • Omnichannel Execution: Advance PubMatic's performance capabilities across specific programmatic formats:

- Mobile: Build robust mechanisms that thrive within SKAdNetwork, Attribution API, and Android Privacy Sandbox constraints.
- CTV & Video: Implement precise cross-device graph integrations, household-level frequency capping, and server-to-server attribution systems.
- Desktop: Innovate alternative identity framework integrations (e.g., UID2, LiveRamp ATS) to sustain high attribution fidelity post-third-party cookies.
  • Data Pipeline Evaluation: Constantly audit existing data ingestion points for architectural flaws, data loss, or systemic latencies that negatively skew attribution accuracy and campaign performance.
  • Scalable Systems Engineering: Write high-performance, low-latency, and memory-efficient code (Python, Go, Java, or C++) matching our ultra-scaled backend layer that processes trillions of monthly events.

Preferred Experience:
  • Deep understanding of the OpenRTB protocol, DSP/SSP mechanics, and supply-path optimization (SPO).
  • Experience deploying production-grade Machine Learning frameworks for CTR/CVR prediction.
  • Strong system-level performance benchmarking skills (profiling memory allocation, reducing I/O bottlenecks).

We'd love for you to have:
  • Education: Bachelor's, Master's, or equivalent practical experience in Computer Science, Data Science, Statistics, Mathematics, Physics, or an analytically grounded quantitative field.
  • Experience: 5+ years of software engineering experience focusing on performance advertising, programmatic bidding, or large-scale user-conversion optimization loops.
  • Attribution Domain Expertise: Demonstrated track record of evaluating and implementing multi-touch attribution (MTA), last-touch attribution (LTA), or incrementality testing frameworks in a production environment.
  • Data Engineering & Scale: Hands-on experience engineering pipelines handling terabyte-to-petabyte scale data via distributed frameworks such as Apache Spark, Apache Flink, Kafka, and cloud data warehouses (e.g., Snowflake, BigQuery).
  • Format Versatility: Strong technical familiarity with technical specs supporting Mobile App (IDFA/GAID loss mitigations), CTV (App Transport Security, IFA standards), and Desktop environments.

Additional Information
Return to Office: PubMatic employees throughout the globe have returned to our offices via a hybrid work schedule (3 days "in office" and 2 days "working remotely") that is intended to maximize collaboration, innovation, and productivity among teams and across functions.
Benefits: Our benefits package includes the best of what leading organizations provide such as, paid leave programs, paid holidays, healthcare, dental and vision insurance, disability and life insurance, commuter benefits, physical and financial wellness programs, unlimited DTO in the US (that we actually require you to use!), reimbursement for mobile and fully stocked pantries plus in-office catered lunches 5 days per week.
Diversity and Inclusion: PubMatic is proud to be an equal opportunity employer; we don't just value diversity, we promote and celebrate it. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status
About PubMatic
PubMatic is one of the world's leading scaled digital advertising platforms, offering more transparent advertising solutions to publishers, media buyers, commerce companies and data owners, allowing them to harness the power and potential of the open internet to drive better business outcomes. Founded in 2006 with the vision that data-driven decisioning would be the future of digital advertising, we enable content creators to run a more profitable advertising business, which in turn allows them to invest back into the multi-screen and multi-format content that consumers demand.
#LI-HYBRID
Compensation Disclosure
In accordance with applicable law, the below salary range provided is PubMatic's reasonable estimate of the total compensation for this role. New hires and current team members are typically compensated toward the middle of our pay range. The actual amount may vary, based on non-discriminatory factors such as location, experience, knowledge, skills and abilities. In addition to salary PubMatic also offers a bonus, restricted stock units, and a competitive benefits package.
Total Compensation Range
$260,000-$330,000 USD

Apply