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Themesoft Inc. • Plano, Texas, United States
Role & seniority: Performance Test Engineer, contract (W2)
Location & work type: Plano, TX — Onsite
Containerization: Docker (image creation, optimization, management), Kubernetes, container networking, security, vulnerability scanning
Performance testing: JMeter, Gatling, K6, Artillery (design, execution, analysis)
Monitoring/Observability: Dynatrace, New Relic, AppDynamics; Prometheus, Grafana, Datadog, Splunk
Cloud/DevOps: AWS, Lambda; CI/CD integration; Git; cloud-native/microservices
Mainframe (nice-to-have): CICS, IMS, DB2
Programming/scripting: Python, Java, Go, Shell scripting
Design, develop, and execute performance/load/soak tests for containerized apps; identify bottlenecks across apps, infra, and orchestration
Analyze results, provide actionable recommendations, and drive performance improvements; integrate tests into CI/CD
Develop/maintain performance testing frameworks; monitor production and pre-production performance; collaborate across Dev, QA, Ops
Deep Docker expertise; Kubernetes administration; container networking and security best practices
Proven performance testing experience (design/execution) with JMeter, Gatling, K6, or Artillery
Ability to analyze test results, perform tuning/optimization, and recommend fixes
APM/observability proficiency (Dynatrace/New Relic/AppDynamics; Prometheus/Grafana/Datadog/Splunk)
Cloud experience
Job Title: Performance Test Engineer
Location: Plano, TX - Onsite
Hire type: Contract on W2
Design, develop, and execute performance and load testing strategies for containerized applications.
Identify performance bottlenecks in applications, infrastructure, and container orchestration platforms.
Analyze performance test results, provide detailed insights, and recommend actionable improvements.
Collaborate with development, QA, and operations teams to integrate performance testing into the CI/CD pipeline.
Develop and maintain performance testing frameworks and tools.
Monitor application and system performance in production and pre-production environments.
Stay current with emerging technologies and best practices in performance engineering and containerization.
Contribute to the continuous improvement of performance testing processes and methodologies.
Deep understanding of Docker, including container image creation, optimization, and management.
Hands-on experience with container orchestration platforms such as Kubernetes.
Familiarity with container networking concepts and best practices.
Experience with container security best practices and vulnerability scanning.
Chaos Engineering
CICS
IMS
DB2
Proven experience in designing and executing performance, load, stress, and soak testing.
Proficiency with performance testing tools such as JMeter, Gatling, K6, Artillery, or similar.
Ability to analyze performance test results, identify root causes, and provide actionable recommendations.
Experience in performance tuning and optimization of applications and infrastructure.
Experience with Application Performance Monitoring (APM) tools (e.g., Dynatrace, New Relic, AppDynamics).
Familiarity with observability platforms and tools (e.g., Prometheus, Grafana, Datadog, Splunk).
Experience in collecting and analyzing metrics, logs, and traces for performance troubleshooting.
Cloud Technologies
AWS
Lambda
Strong programming or scripting skills (e.g., Python, Java, Go, Shell scripting).
Understanding of CI/CD principles and experience integrating performance tests into pipelines.
Familiarity with cloud-native architectures and microservices.
Experience with version control systems (e.g., Git).
Excellent analytical and problem-solving skills.
Strong communication and collaboration skills, with the ability to explain technical concepts to diverse audiences.
Ability to work independently and as part of a team.