Performance Testing Engineer

Inetum · Bucharest, , Romania

  • Junior
  • Full-time
  • Posted 2026-09-14
  • Confirmed live on 25 September 2026

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Job description

Job Description
About the role
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.
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.
Performance Test Execution
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.
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 Analysis
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.

Qualifications
Required Technical Skills
Performance Testing
Experience with one or more performance testing tools:
Preferred:

• OpenText LoadRunner Enterprise

• OpenText VuGen

• OpenText Analysis
Nice to have:

• Apache JMeter

• Gatling

• K6

• NeoLoad / Blazemeter
Performance Engineering Knowledge
Understanding of:

• Performance testing methodologies

• Performance Engineering principles

• Workload modelling

• Test planning:

• Performance bottleneck identification

• Scalability concepts

• Capacity planning fundamentals

• Performance analysis techniques
Protocols & Technologies:

• Knowledge of:
• HTTP / HTTPS

• REST APIs

• SOAP

• GraphQL (nice to have)

• WebSockets (nice to have)

• Understanding of:
• Web applications

• APIs

• Distributed systems

• Microservices architecture

• Mobile applications (nice to have)

Scripting & Programming

• Knowledge of one or more:
• JavaScript

• Java

• Python

• Groovy

• Basic scripting skills are expected for automation, data manipulation, and script creation & customization.

• Our main development programming language is JavaScript and usage of internal framework available in LoadRunner Enterprise.

DevOps & CI/CD:
Basic understanding of:

• Git

• GitLab CI *

• Jenkins *

• Azure DevOps *

• GitHub Actions *
* represents an advantage
Experience integrating performance testing into delivery pipeline, following best practices, is considered and advantage
Monitoring & Observability:

• Exposure to monitoring platforms is a plus:
• Dynatrace

•

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