Performance Testing Engineer

As a Performance Testing Engineer, you will help ensure that our applications deliver excellent performance, scalability, and reliability before reaching production.

You will collaborate with business stakeholders, developers, testers, architects, DevOps Engineers, and Infrastructure Teams to design, execute, and analyze performance tests that validate system behavior under realistic workloads. Your work will contribute directly to improving customer experience, reducing production risks, and supporting high-quality software delivery across multiple business domains.

This role offers the opportunity to work with modern performance engineering practices, enterprise-scale applications, cloud-native technologies, CI/CD pipelines, and observability platforms while continuously developing your technical expertise across different technology stacks.

Key responsibilities

Performance Test Planning

• Participate in discovery/analysis sessions to understand business objectives and non-functional requirements (NFRs).
• Asses potential performance risks introduced by new features or architectural changes.
• Define appropriate performance testing strategies based on business and technical requirements.
• Design comprehensive Performance Test Plans/Assessment Documents, covering scope, objectives, workload models, success criteria, and execution approaches.
• Collaborate with stakeholders to clarify assumptions, risks, and expected system behavior.

Test Design & Script Development

• Develop reusable and maintainable performance test scripts.
• Design realistic workload models based on production usage patterns and be able to propose proper approaches for load testing the applications.
• Implement parametrization, correlation, dynamic data handling, and reusable components either in new-script or by using existing frameworks.
• Support testing across Web, Mobile, API, and microservice architectures.
• Maintain test assets following coding and documentation standards.

Performance Test Execution & Analysis

• Design, configure, and execute various performance test types including Load Testing, Stress Testing, Spike Testing, Endurance (Soak) Testing, Scalability (Limit) Testing, Capacity Testing, other test types (when applicable)
• Monitor execution progress, validate results, and ensure test integrity throughout the testing lifecycle.
• Analyze test results to evaluate: response times, throughput, transaction success rates, error rates, resource utilization, scalability, system stability
• Identify performance bottlenecks and correlate application behavior with infrastructure metrics (from used observability tools) to determine root causes and provide recommendations.

Reporting & Recommendations

• Produce clear technical and executive performance testing reports (following pre-existing templates or from scratch).
• Present findings to technical and non-technical stakeholders.
• Document risks, bottlenecks, trends, and improvement opportunities.
• Provide recommendations to improve application performance, scalability, and stability.
• Support development teams during performance optimization activities.

Automation & Continuous Performance Testing

• Contribute to integrating performance testing into CI/CD pipelines.
• Support automated performance test execution using enterprise tools and APIs.
• Continuously improve testing processes, standards, and best practices.

What we are looking for

• Experience in Performance Testing
• Proficiency with one or more performance testing tools: OpenText LoadRunner Enterprise, OpenText VuGen, OpenText Analysis
• Knowledge of one or more programming languages: JavaScript, Java, Python, Groovy
• Previous experience with the following protocols & technologies: HTTP / HTTPS, REST APIs, SOAP, GraphQL or WebSockets
• Previous experience with web applications, APIs, distributed systems, microservices architecture or mobile applications
• Basic understanding of Git, GitLab CI, Jenkins, Azure DevOps, GitHub Actions
• Ability to independently design and execute performance test campaigns
• Knowledge of performance testing methodologies and principles; workload modelling, test planning, performance bottleneck identification, scalability concepts, capacity planning fundamentals and performance analysis techniques
• Exposure to monitoring platforms such as Dynatrace, AppDynamics, Icinga, Grafana, Datadog, Splunk or ELK Stack, would be a plus
• Previous experience with Apache JMeter, Gatling, K6, NeoLoad / Blazemeter, would be a plus

Other skills

• Professional working proficiency in English, both written and spoken
• Knowledge of French is considered an advantage
• Strong analytical thinking
• Excellent problem-solving abilities and attention to detail
• Curiosity and willingness to learn
• Effective communication skills and team collaboration
• Ability to explain technical concepts to non-technical stakeholders
• Ownership and accountability
• Time management and organizational skills
• Ability to work independently and as part of a team

Nice to Have

• Knowledge of Kubernetes
• Knowledge of Cloud platforms (Azure, AWS, GCP)
• Knowledge of Infrastructure monitoring
• Networking fundamentals
• AI-assisted testing tools / scripting
• Enterprise applications & knowledge of cloud scaling practices (HPA / VPA etc)
• ISTQB Certification Foundation or Advanced
• Any other relevant certifications for Performance Testing or Application related (i.e Cloud Certifications)

What we offer

• Benefits Online Platform - customized depending on your needs
• Private Medical Subscription
• Life Insurance
• Annual performance bonus and additional bonuses
• 24 days of annual leave
• Access to training and well-being platforms
• Hybrid way of working
• Various office perks such as massage, weekly fresh fruits, games room, monthly breakfast events and more

Who are we?

We’re part of one of the world’s largest banking groups and we’re leading its best IT and Operations projects.

Central Europe Technologies (CE.T) is an expertise Shared Service Center for BNP Paribas Group, supporting subsidiaries across 19 countries and we are consistently expanding.

Located in Romania, with offices in Bucharest and Brasov, the company brings together over 350 employees, with expertise in a range of technologies (Java, .NET, COBOL, manual & automation testing) and various operational roles (Credit Analysts, System Expert Administrators).

Our culture

We are proud to create, maintain and develop strategic business applications for BNP Paribas Group entities around the world, while keeping a high level of service and providing added value to our customers.

Working in a multicultural environment, we encourage our people to develop their talents and skills, offering various career opportunities and internal mobility programs, within local CE.T teams or in other entities within the Group, both in Romania and abroad.

We value our employees’ experience by keeping a well-balanced environment with flexibility regarding the work schedule and care for everyone’s personal time. We have adopted a hybrid work model, because we firmly believe that social connections consistently enhance the value of our daily activities.

Diversity and inclusion are among our core values, as CE.T is an equal opportunity employer. Therefore, we are committed to ensure employment opportunities are accessible to all, regardless of race, skin color, beliefs, religion, nationality, ethnic background, age, sex, sexual orientation, marital status or political opinions.