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Sr Performance Test Engineer Jobs in Seattle, WA

Sr. Test Engineer

Seattle, WA ยท On-site

$145K - $203K/yr

Mentor junior engineers in all aspects of component testing and support Test Operations ... Blue Origin hires and promotes people on the basis of their qualifications, performance, and ...

Sr. Radar Test Engineer

Seattle, WA ยท On-site

$140K - $225K/yr

As a Radar Test Engineer, you will be a part of our Test Engineering team working directly with our radar development program. We enjoy a culture of sharing information and collaboration. Phased ...

You will lead a team of technicians and test engineers, drive test throughput while maintaining ... Blue Origin hires and promotes people on the basis of their qualifications, performance, and ...

Senior Performance Architect, Nemotron

Redmond, WA ยท On-site

$187K/yr

We are now looking for a Senior Performance Architect for Nemotron! At NVIDIA, we are redefining ... engineers. What we need to see: * A minimum qualification of a Master's degree (or equivalent ...

Sr. Test Engineer | TeraWave

Seattle, WA ยท On-site

$125K - $163K/yr

You will lead a team of technicians and test engineers, drive test throughput while maintaining ... Blue Origin hires and promotes people on the basis of their qualifications, performance, and ...

Showing results 41-60

Sr Performance Test Engineer information

See Seattle, WA salary details

$11

$53

$79

How much do sr performance test engineer jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for sr performance test engineer in Seattle, WA is $53.01, according to ZipRecruiter salary data. Most workers in this role earn between $39.66 and $67.31 per hour, depending on experience, location, and employer.

What are some typical challenges faced by a Sr Performance Test Engineer, and how can these be addressed?

Sr Performance Test Engineers often encounter challenges such as simulating real-world user loads, identifying performance bottlenecks in complex systems, and ensuring testing environments closely mirror production. Addressing these requires collaboration with developers and DevOps teams to set up accurate test environments, using advanced monitoring tools to trace issues, and continuously refining test scripts as applications evolve. Proactively communicating with stakeholders and staying updated on the latest performance testing tools can also help overcome these challenges.

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

AspectSr Performance Test EngineerPerformance Test Engineer
CredentialsTypically requires 5+ years experience, certifications like ISTQB or ISTQB Advanced, and strong technical skillsUsually requires 2-4 years experience, similar certifications, and foundational testing skills
Work EnvironmentWorks in complex projects, often leads testing efforts, and collaborates with multiple teamsPerforms testing tasks under supervision, supports performance testing activities
Industry UsageCommonly employed in IT, software development, and enterprise applicationsUsed across similar industries, often as an entry to mid-level role

The main difference is experience level and responsibility. Sr Performance Test Engineers lead testing efforts and handle complex scenarios, while Performance Test Engineers focus on executing tests and supporting the team. Both roles require similar skills and certifications, but the senior role involves more leadership and strategic planning.

What is a Sr Performance Test Engineer?

Senior Performance Test Engineers are experienced professionals responsible for designing, implementing, and executing tests to evaluate the speed, responsiveness, scalability, and stability of software applications under varying workloads. They analyze system performance, identify bottlenecks, and recommend optimizations to ensure the application meets performance requirements. Additionally, Sr Performance Test Engineers often lead performance testing initiatives, mentor junior testers, and collaborate closely with development and operations teams to ensure a high-quality user experience.

What are the key skills and qualifications needed to thrive as a Sr Performance Test Engineer?

To thrive as a Sr Performance Test Engineer, you need an in-depth understanding of performance testing concepts, scripting, and analysis, typically supported by a degree in computer science or a related field. Expertise in tools like LoadRunner, JMeter, and monitoring systems such as Dynatrace or New Relic, along with relevant certifications, is often required. Strong analytical thinking, problem-solving abilities, and effective communication skills set standout professionals apart in this role. These skills and qualities are crucial to accurately identify bottlenecks, ensure system reliability, and drive collaboration across development teams for optimal application performance.
What are popular job titles related to Sr Performance Test Engineer jobs in Seattle, WA? For Sr Performance Test Engineer jobs in Seattle, WA, the most frequently searched job titles are:
What job categories do people searching Sr Performance Test Engineer jobs in Seattle, WA look for? The top searched job categories for Sr Performance Test Engineer jobs in Seattle, WA are:
Infographic showing various Sr Performance Test Engineer job openings in Seattle, WA as of August 2026, with employment types broken down into 83% Full Time, and 17% Contract. Highlights an 100% In-person job distribution, with an average salary of $110,257 per year, or $53 per hour.

Senior Performance Improvement (PI) Specialist

TerraPower LLC.

Bellevue, WA โ€ข On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 22 days ago


Job description

TerraPower is a nuclear technology company based in Bellevue, Washington. At its core, the company is working to raise living standards globally through a more affordable, secure, and environmentally friendly form of nuclear energy along with innovations in medical isotopes to improve human health. In 2006, TerraPower originated with Bill Gates and a group of like-minded visionaries who evaluated the fundamental challenges to raising living standards around the world. They recognized energy access was crucial to the health and economic well-being of communities and decided that the private sector needed to take action and create energy sources that would advance global energy deployment. TerraPower's mission is to be a world leader in new nuclear technologies, while developing innovators and future leaders in the nuclear field. As a result, the company's activities in the fields of nuclear energy and related sciences are yielding significant innovations in the safety and economics of nuclear power, hybrid energy and medical applications - all for significant human health benefits."
TerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape and bringing forward the critical production of medical isotopes. TerraPower is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state, or local law.
Senior Performance Improvement Specialist
The Senior Performance Improvement (PI) Specialist is a full-time exempt position that reports to the Performance Improvement Manager and is responsible for implementing performance improvement programs, which may include Correction Action Process (CAP), Self-Assessment, Benchmarking, Operating Experience, Performance Gap Analysis, Trending, Root Cause Analysis, Cause Investigations, and any other duties as assigned by the Performance Improvement Manager. Continuously improve performance improvement program execution to increase efficiency and results of the program and ensure effective identification, screening, analysis, resolution, implementation and measurement of performance issues. Prepare site performance data and adverse trends using observations, CAP, self-assessment, benchmarking, operating experience, and performance indicator data. This position requires an advanced level of knowledge of ASME NQA-1 requirements for corrective action program.
Responsibilities:
  • Lead the development, maintenance, and implementation of Performance Improvement standard operating documents (SODs), ensuring strategic alignment with organizational goals and compliance standards across multiple departments.
  • Expertly analyze and interpret corrective action data and performance metrics, providing detailed reports and strategic recommendations to senior management.
  • Conduct advanced analysis of performance data to identify systemic issues and trends, leveraging CAP data, self-assessments, benchmarking, operating experiences, and performance indicators to drive organizational change.
  • Take a leadership role in CAP investigations and condition screenings, guiding teams to provide structured insights and implement long-term corrective actions.
  • Serve as a mentor and subject matter expert for cross-functional teams, fostering a strong culture of continuous improvement and operational excellence.
  • Lead the development and refinement of performance indicators, ensuring they are actionable and aligned with both short-term and long-term organizational objectives.
  • Oversee the coordination and preparation of materials for Performance Improvement meetings and CAP review board meetings, facilitating high-level discussions with senior leadership.
  • Provide executive-level weekly and monthly status reports, synthesizing complex data into strategic insights and recommendations for senior leadership.
  • Independently lead and oversee teams in conducting comprehensive cause analysis tasks, ensuring high-quality, actionable outcomes that drive performance improvements.
  • Direct initiatives to enhance Performance Improvement software and related tools, collaborating with stakeholders to ensure that user needs are effectively addressed and integrated into system updates.
  • Other duties as assigned by the Performance Improvement Manager.

Key Qualifications and Skills:
  • BS, BA in applicable field (e.g., math, science, engineering, or business administration)
  • 10+ years' experience in a nuclear performance improvement or corrective action program work environment preferred
  • Root Cause analysis or cause analysis experience preferred.
  • Experience working with government organizations such as Department of Energy (DOE) and/or the Nuclear Regulatory Commission (MRC), as well as industry groups like the Institute of Nuclear Power Operations (INPO) is preferred.
  • Strong customer service and training skills and a desire to achieve results.
  • Proficiency in Microsoft Office Suite including Word, Excel, Outlook, and PowerBI.
  • Experience working with Confluence, JIRA, INPO IRIS, and Devonway.
  • Exceptional attention to detail.
  • Strong oral and written technical communication skills.
  • Strong organizational and time management skills.
  • Ability to work independently and in a team environment.
  • Skilled in setting priorities.
  • Excellent analytical, interpretive, and problem-solving skills.
  • The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork.
  • Actual position starting level and title will be determined based on assessment of qualifications.

Job Functions:
Job Functions are physical actions and/or working conditions associated with the position. These functions may also constitute essential functions for the job which the employee must be able to fulfill, with or without accommodation. Information provided below is to help describe the job so that the applicant has a reasonable understanding of the job duties/expectations. An applicant's ability to perform and/or tolerate these actions and conditions will be discussed and workplace accommodations may be made on a case-by-case basis following an individualized assessment of the applicant and other considerations, including but not limited to any governing safety standards.
  • Motor Abilities: Sitting and/or standing for extended periods, bending/stooping, grasping/gripping, fine motor control (hands)
  • Physical exertion and/or requirements: Minimal, with ability to safely lift up to 25 pounds
  • Repetitive work: Prolonged
  • Special Senses: Visual and audio focused work
  • Work Conditions: Stairs, typing/keyboard, standard and/or sitting working environment of >8 hrs./day
  • Travel required: 0-5%

TerraPower's technology is controlled for export by various agencies of the U.S. Government. TerraPower must evaluate applicants who are foreign nationals (other than asylees, refugees, or lawful permanent residents) in accordance with U.S. Government export control requirements. To facilitate TerraPower's export control reviews, you will be asked as part of the application process to identify whether you are a U.S. Citizen or national, asylee, refugee, or lawful permanent resident of the United States. Government export authorization approval times vary. Based on the business needs for a particular position, TerraPower may not consider a foreign national from a country if it is impracticable to obtain timely Government export approval.
Job Functions:
Job Functions are physical actions and/or working conditions associated with the position. These functions may also constitute essential functions for the job which the employee must be able to fulfill, with or without accommodation. Information provided below is to help describe the job so that the applicant has a reasonable understanding of the job duties/expectations. An applicant's ability to perform and/or tolerate these actions and conditions will be discussed and workplace accommodations may be made on a case-by-case basis following an individualized assessment of the applicant and other considerations, including but not limited to any governing safety standards.
  • Motor Abilities: Sitting for extended periods, bending/stooping, grasping/gripping, fine motor control (hands)
  • Physical exertion and/or requirements: Minimal, with ability to safely lift up to 25 pounds.
  • Repetitive work: Prolonged
  • Special Senses: Visual and audio focused work
  • Work Conditions: Stairs, typing/keyboard, standard and/or sitting working environment of >8 hours/day
  • Travel required 0-10%

TerraPower's technology is controlled for export by various agencies of the U.S. Government. TerraPower must evaluate applicants who are foreign nationals (other than asylees, refugees, or lawful permanent residents) in accordance with U.S. Government export control requirements. To facilitate TerraPower's export control reviews, you will be asked as part of the application process to identify whether you are a U.S. Citizen or national, asylee, refugee, or lawful permanent resident of the United States. Government export authorization approval times vary. Based on the business needs for a particular position, TerraPower may not consider a foreign national from a country if it is impracticable to obtain timely Government export approval.
Job details
Salary Range: $138,685 - $208,027
* We typically place offers in the lower to middle portion of the range to maintain internal equity and allow room for growth. Any salary offered within the posted salary band is based on market data and commensurate with the selected individual's qualifications experience. This range is specific to Washington State.
Benefits:
  • Competitive Compensation
  • Salary, eligible to participate in discretionary short-term incentive payments
  • Comprehensive Medical and Wellness Benefits
    • Medical
    • Vision
    • Dental
    • Life and Disability
    • Gender Affirmation Benefits
  • Parental Leave
  • 401k Plan
  • Generous Paid Time Off (PTO)
    • 21 days of annually accrued PTO
  • Generous Holiday Schedule
    • 10 paid holidays
  • Relocation Assistance
  • Professional and Educational Support Opportunities

TerraPower Career and Benefits information: https://www.terrapower.com/contact-us/careers/