Senior Performance Test Engineer

Insperity; Town of Texas (WI); Hybrid; USD 90,000 - 130,000; Full time

Job summary

Insperity in the United States is seeking an experienced Performance Test Engineer to join our testing team. You will design and execute performance tests, collaborate with Product Owners and engineers, and ensure application reliability across multiple teams.

The role requires 5–7 years of experience, strong SQL, and hands-on work with C#, Java, .NET, and NeoLoad; you will analyze results, report findings, and contribute to continuous performance improvement.

Qualifications

• Bachelor's Degree in Computer Science or a related field is required.
• Five to seven years of professional experience with performance testing, including scripting and/or software development.
• Ability to work effectively in an Agile/Scrum model environment.
• Strong understanding of performance testing requirements and converting them to executable scripts.
• Strong knowledge of automation/performance script creation using NeoLoad or other tools.
• Proficiency in parameterization, checkpoints, reusable functions, correlations, iterations, pacing and think time.
• Strong skills in Performance Workload Modeling and Capacity Planning.
• Experience analyzing client-side statistics (response times, throughput, hits/sec).
• Knowledge of web servers (Apache, IIS), application servers (Tomcat, JBoss), and databases (Informix, Oracle, MS SQL).
• Experience with monitoring server performance counters using AppDynamics or similar tools.
• Strong analytical and documentation abilities.
• Excellent communication, presentation and leadership skills.

Responsibilities

• Acts as an extended scrum team member on multiple teams and conducts system performance testing to ensure application reliability, capacity, and scalability.
• Collaborates with Product Owners, Business Users, and the Scrum team to identify performance requirements and develop a performance testing strategy.
• Designs performance test scripts and executes them (load, stress, spike, endurance, scalability).
• Monitors client-side and server-side performance with in-house and commercial tools.
• Analyzes test results, participates in root cause analyses, and provides improvement recommendations.
• Delivers detailed level test reports.
• Collaborates with the Application Health and Performance team to monitor post-deployment performance and refine tests pre-production.
• Suggests new tools and techniques to improve testing efficiency.
• Conducts training and provides assistance to Associate and Mid-Level Performance Test Engineers.

Skills

SQL (Advanced)

C#

Java

.NET

Heap analysis

Thread dump

CPU profiling

Memory profiling

NeoLoad

Excel

Visual Studio/TFS

Fidd

Education

Bachelor's Degree in Computer Science or related field

Tools

NeoLoad

AppDynamics

Job description

Insperity provides the most comprehensive suite of scalable HR solutions available in the marketplace with an optimal blend of premium HR service and technology. With more than 90 locations throughout the U.S., Insperity is currently making a difference for thousands of businesses and communities nationwide.

Behind our success is the unshakeable belief in the value of our people. We value diversity, inclusivity and a sense of belonging. We celebrate work and life events, and we partner with our clients and communities to make great things happen.

We've earned recognition time and again as a top place to work-named among the best by respected organizations like Glassdoor and U.S. News & World Report. We're also proud to be recognized for one of the country's Top 50 Midsize Early Talent Programs through RippleMatch's Campus Forward Awards. There's never been a better time to be part of Insperity, and our best work is still ahead. Learn more at Insperity.com.

Why Insperity?

Flexibility: Over 80% of Insperity's jobs have flexibility. We want your time to have balance, whether it's spent with coworkers, clients, family or your community.

Career Growth: Insperity provides many ways to grow with the company. We offer continuous learning programs, mentorship opportunities and ongoing training.

Well-Being: Our total rewards package includes generous paid time off, top-tier medical, dental and vision benefits, health & wellness support, paid volunteer hours and much more. We take care of our people so that you can do your best work.

Responsibilities:

• Acts as an extended scrum team member on multiple teams and conducts system performance testing to ensure application reliability, capacity, and scalability.
• Collaborates with Product Owners, Business Users, and the Scrum team to identify performance requirements and develop a performance testing strategy.
• Designs various types of performance test scripts and executes them based on the application requirements. This can include load testing, stress testing, spike testing, endurance/stability testing, and scalability testing scenarios.
• Monitors both client-side and server-side application performance using in-house and commercial tools.
• Analyzes the performance test results, participates in root cause assessments, and provides recommendations for improvements.
• Provides detailed level test reports.
• Collaborates with the Application Health and Performance team to monitor system performance post-deployment and uses that information to continue to refine tests in pre-production.
• Suggests new tools and techniques to improve testing efficiency.
• Conducts training and provide assistance to Associate and Mid-Level Performance Test Engineers.

Qualifications:

Bachelor's Degree in Computer Science or a related field is required.

Five to seven years of professional experience with performance testing, including scripting and custom scripting, and/or software development is required.

Ability to work effectively in an Agile/Scrum model environment.

Strong understanding of performance testing requirements and converting them to executable performance testing scripts.

Strong understanding of automation/performance script creation using NeoLoad or other applicable performance test tools.

Have an in-depth understanding of how to properly perform parameterization, use checkpoints, develop reusable functions, use correlations, schedule iterations, pacing and think time.

Highly proficient in Performance Workload Modeling and Capacity Planning.

Perform analysis of client side statistics like response times, throughput, hits per second etc.

Strong knowledge of web servers (Apache, IIS etc.), application servers (Tomcat, JBoss etc.), database servers (Informix, Oracle, MS SQL etc.).

Experience with monitoring server performance counters, e.g. CPU utilization (Host/Process), host memory utilization, heap memory usage, thread and connection pools, etc., using AppDynamics and other application monitoring tools.

Strong analytical and documentation skills.

Excellent communication, presentation and leadership skills

Required skills include:

• Knowledge of advanced SQL.
• Working experience with C#, Java, and .NET frameworks in order to participate in design and code inspections to proactively assist in identifying bottlenecks.
• Possesses and applies a knowledge of heap and thread dump analysis, CPU, and memory profiling data.
• Basic development knowledge for custom coding implementation in NeoLoad.
• Working knowledge of MS-Excel (macros, graphs/charts etc.) to automate any test reporting.
• Experience using Visual Studio/TFS for project management and defect tracking.
• Knowledge of Fidd