Performance Tester: Load, API & CI/CD Expert

OJUS LLC

Wilmington (DE)

On-site

USD 110,000 - 150,000

Full time

5 days ago

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Job summary

OJUS LLC is seeking an experienced Performance Tester to join our QA team in the United States. You will design, execute, and analyze performance tests for enterprise applications and collaborate with developers, analysts, and DevOps to optimize performance.

The role requires 5+ years in performance testing, hands-on LoadRunner/JMeter, and strong knowledge of monitoring and SQL/database performance. You will contribute to CI/CD pipelines and capacity planning in a fast-paced environment.

Qualifications

5+ years of experience in Performance Testing/Engineering.
Hands-on LoadRunner and/or JMeter experience.
Experience in performance test planning, scripting, execution and analysis.
Strong understanding of load, stress, endurance, volume, and scalability testing.
Testing REST/SOAP APIs and web applications.
SQL and database performance analysis knowledge.
Experience with Dynatrace, AppDynamics, Splunk, or similar tools.
Experience with Java, .NET or other enterprise environments.
Knowledge of HTTP/HTTPS, TCP/IP, web services, APIs, and distributed systems.
Ability to analyze CPU/memory/disk I/O/network metrics.
Understanding of SDLC/STLC/Agile-Scrum and defect management.
Strong analytical and troubleshooting skills.

Responsibilities

Design and develop performance test strategies, scenarios, scripts, and test plans.
Develop and execute load, stress, endurance, scalability, and volume tests.
Create and maintain performance test scripts using LoadRunner, JMeter, or similar tools.
Analyze performance, response times, throughput, resource utilization, and bottlenecks.
Collaborate with developers, analysts, architects, DevOps, and infrastructure teams.
Perform baseline, benchmark, load, and regression performance testing.
Monitor performance using Dynatrace, AppDynamics, Splunk, Grafana, or similar tools.
Prepare detailed performance reports with optimization recommendations.
Identify bottlenecks across application, database, API, network, and infrastructure layers.
Execute testing for Web apps, REST/SOAP APIs, microservices, and backend systems.
Participate in capacity planning and scalability threshold determination.
Integrate performance testing into CI/CD pipelines.
Troubleshoot scripting and test execution issues; maintain reusable assets.
Collaborate with cross-functional teams throughout the software lifecycle.