Performance Test Engineer

Role: Performance Test Engineer

Location: Wilmington, DE - Hybrid

Contract Duration: 12+ months

The Performance Test Engineer ensures the scalability, stability, and responsiveness of the applications—primarily web-based and select client-server applications. This is a hands-on role that designs and executes performance testing strategies, integrates them into CI/CD practices, and collaborates closely with engineering teams to optimize application performance across the .NET technology stack.

 Primary Responsibilities:

Performance Testing Execution:

• Design, develop, and execute performance, load, and stress tests using
• Design, develop, and execute performance, load, and stress tests using JMeter and industry-standard approaches.
• Analyze test results to identify bottlenecks (CPU, memory, I/O, database, network) and recommend code/configuration optimizations.
• Integrate performance testing into CI/CD pipelines using GitLab; author and maintain pipeline jobs, artifacts, and thresholds.

 System Reliability & Scalability:

• Validate application performance under varying loads and peak events for web and client-server applications.
• Collaborate with developers and architects to embed performance considerations (capacity, caching, concurrency) in design and development.
• Partner with database engineers to tune queries, indexes, and connection strategies for .NET/SQL workloads.

 Environment & Tooling:

• Leverage Azure (strong plus) for test environments, scaling, and monitoring; collaborate on infrastructure-as-code where applicable.
• Utilize monitoring and log analysis tools (e.g., Splunk, ELK) to correlate performance metrics with system behavior and trace root causes.
• Work closely with DevOps to maintain test harnesses, datasets, synthetic users, and environment parity across stages.

 Education and Experience (Required): 

• Degree: Bachelors’ degree and 5+ years' experience in performance testing/QA, or equivalent combination of education and experience

 Technical Expertise:

• Strong hands-on experience with Apache JMeter (test plan design, parameterization, correlation, distributed testing, and reporting).
• CI/CD: GitLab pipelines (YAML), test gating with pass/fail thresholds, artifact management, and integration with .NET builds.
• .NET stack familiarity (C#, ASP.NET, Entity Framework/SQL Server); ability to collaborate on code-level and config tuning.
• Experience testing both web applications and client-server applications across custom and COTS solutions.
• Exposure to Microsoft Azure for environment provisioning, monitoring, and scaling (strong plus).

 EEO: “Mindlance is an Equal Opportunity Employer and does not discriminate in employment on the basis of – Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans.”