Software Test Engineer (APM tools, performance testing, Jmeter, Python Java)

Job Summary

We are seeking a Software Test Engineer with strong hands-on expertise in performance testing and growing capabilities in performance engineering.

In this role you will lead test design and execution for complex systems drive performance optimization efforts and collaborate with cross-functional teams

to ensure applications are scalable stable and production-ready.

You will also play a key role in advancing automation and shift-left performance practices.

Key Responsibilities

Performance Test Design & Execution

• Design develop and execute performance tests for web API and microservices-based systems.
• Develop robust workload models scenarios and test strategies aligned with business usage patterns.
• Ensure complete coverage across load stress endurance and scalability testing.

Script Development & Automation

• Build and maintain advanced scripts using JMeter LoadRunner or similar tools.
• Create reusable frameworks utilities and templates to improve team productivity.
• Integrate performance testing into CI/CD pipelines (GitHub Actions or similar) for continuous validation.

Analysis & Troubleshooting

• Analyse performance test results to identify bottlenecks across application API database and infrastructure layers.
• Perform root-cause analysis using APM and observability tools (Datadog AppDynamics Coralogix or similar).
• Collaborate with engineering teams to validate fixes and drive performance improvements.

Performance Engineering & Optimization

• Contribute to capacity planning benchmarking and performance tuning activities.
• Provide recommendations for optimizing application code database queries and infrastructure.
• Support early-stage testing (shift-left) to identify performance risks during development.

Environment & Tooling Enablement

• Collaborate with DevOps and infrastructure teams to ensure stable and production-like performance environments.
• Support monitoring setup log analysis and system health validation during test cycles.
• Drive improvements in performance testing tools dashboards and automation pipelines.

Collaboration & Mentoring

• Work closely with developers QA SRE and product teams to ensure performance requirements are well understood.
• Mentor junior engineers and review test scripts results and approaches.
• Contribute to best practices documentation and knowledge sharing within the team.

Reporting & Insights

• Create clear and concise performance reports with insights trends and recommendations.
• Communicate risks and findings effectively to both technical and non-technical stakeholders.

Qualifications :

Core Skills (Must Have)

• 1-3 years of strong experience in Performance testing and engineering.
• Strong hands-on expertise with tools like JMeter LoadRunner or Locust.
• Proficiency in at least one programming/scripting language (Java Python or JavaScript).
• Solid understanding of API performance testing and distributed systems.
• Experience with microservices architectures and cloud-based applications.
• Good working knowledge of APM/monitoring tools (Datadog AppDynamics Coralogix or similar).
• Understanding of key performance concepts:
  • Response time throughput concurrency
  • Load modeling and test design
  • Basic capacity and scalability considerations
• Strong analytical and troubleshooting skills.
• Ability to work independently and collaborate across teams.

Preferred Qualifications

• Experience integrating performance workflow with AI powered systems.
• Exposure to Kubernetes Docker and cloud environments (AWS/Azure/GCP).
• Experience in shift-left performance practices or early-stage testing.
• Knowledge of performance-as-code observability and log analytics tools.

Additional Information :

Our Benefits

• Flexible working environment
• Volunteer time off
• LinkedIn Learning
• Employee-Assistance-Program (EAP)

NIQ may utilize artificial intelligence (AI) tools at various stages of the recruitment process including résumé screening candidate assessments interview scheduling job matching communication support and certain administrative tasks that help streamline workflows. These tools are intended to improve efficiency and support fair and consistent evaluation based on job-related criteria. All use of AI is governed by NIQs principles of fairness transparency human oversight and inclusion. Final hiring decisions are made exclusively by humans. NIQ regularly reviews its AI tools to help mitigate bias and ensure compliance with applicable laws and regulations. If you have questions require accommodations or wish to request human review were permitted by law please contact your local HR representative. For more information please visit NIQs AI Safety Policies and Guiding Principles: NIQ

NIQ is the worlds leading consumer intelligence company delivering the most complete understanding of consumer buying behavior and revealing new pathways to 2023 NIQ combined with GfK bringing together the two industry leaders with unparalleled global reach. With a holistic retail read and the most comprehensive consumer insightsdelivered with advanced analytics through state-of-the-art platformsNIQ delivers the Full View. NIQ is an Advent International portfolio company with operations in 100 markets covering more than 90% of the worlds population.

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Our commitment to Diversity Equity and Inclusion

At NIQ we are steadfast in our commitment to fostering an inclusive workplace that mirrors the rich diversity of the communities and markets we serve. We believe that embracing a wide range of perspectives drives innovation and excellence.  All employment decisions at NIQ are made without regard to race color religion sex (including pregnancy sexual orientation or gender identity) national origin age disability genetic information marital status veteran status or any other characteristic protected by applicable laws. We invite individuals who share our dedication to inclusivity and equity to join us in making a meaningful impact. To learn more about our ongoing efforts in diversity and inclusion please visit the  Work :

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Employment Type :

Full-time