Performance Tester

Buenos Aires, ARPermanentPosted Aug 4, 2026

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.

Job Description

Timezone: PST (working hours 12pm - 9pm Argentina Time) 

 

Key Responsibilities
Design, develop, and execute performance test strategies, plans, and scripts for web, mobile, API, and enterprise applications.
Create and maintain performance test scripts using K6 and/or Apache JMeter.
Perform load, stress, endurance, spike, and scalability testing.
Analyze test results and identify application, database, infrastructure, and network bottlenecks.
Collaborate with development, DevOps, SRE, and architecture teams to troubleshoot and resolve performance issues.
Integrate performance testing into CI/CD pipelines and support shift-left quality practices.
Generate performance reports and provide recommendations for system optimization.
Monitor application performance using observability and APM tools.Participate in capacity planning and production readiness activities.
Support root cause analysis for performance-related incidents in non-production and production environments.

Required Qualifications
Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.4+ years of experience in Performance Testing and Performance Engineering.
Strong hands-on experience with K6 and/or Apache JMeter.
Experience testing REST APIs, microservices, and web applications.
Strong understanding of performance testing methodologies and best practices.
Experience analyzing JVM, application, database, and infrastructure performance metrics.
Knowledge of HTTP/HTTPS, REST, TCP/IP, caching, and distributed systems.
Experience with SQL and database performance analysis.
Familiarity with Agile and DevOps methodologies.
Strong analytical and problem-solving skills.
Excellent communication and stakeholder management skills.

Preferred Qualifications
Experience with cloud platforms such as AWS, Azure, or GCP.
Experience with monitoring and observability tools such as: Dynatrace, AppDynamics, New Relic, Grafana, Prometheus, Splunk
Experience integrating performance testing into CI/CD pipelines using:GitHub Actions, Azure DevOps, Jenkins

 

#LI-LB21 

Job Description - Grade Specific

Has more than a year of relevant work experience. Solid understanding of programming concepts, software design and software development principles. Consistently works to direction with minimal supervision, producing accurate and reliable results. Individuals are expected to be able to work on a range of tasks and problems, demonstrating their ability to apply their skills and knowledge. Organises own time to deliver against tasks set by others with a mid term horizon. Works co-operatively with others to achieve team goals and has a direct and positive impact on project performance and make decisions based on their understanding of the situation, not just the rules.

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.

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