Senior QA Engineer; Jmeter Javascript​/Python

Introduction

Symphony

AI is at the forefront of innovation, leveraging cutting-edge artificial intelligence and machine learning technologies to transform industries and drive business growth. As a global leader in AI-powered solutions, we empower organizations to harness the full potential of data-driven insights. Symphony

AI enterprise applications rapidly deliver transformative business value across retail, CPG, financial services, manufacturing, media, Enterprise IT (Symphony

AI Summit) and the public sector. Symphony

AI combines unrivalled AI technology, vertical expertise and industry-specific data and insights into applications that drive the highest value for customers. We are one of the largest and fastest growing AI portfolios.

We are seeking an Senior Performance Test Engineer to lead performance, load, stress, spike, and endurance testing for our web applications, APIs, and data platforms. The ideal candidate will have strong expertise in designing, executing, and analyzing performance tests to ensure scalability, stability, and high performance of enterprise‑grade systems.

• Design and implement performance test strategies covering load, stress, spike, and endurance testing for web, API, and data‑driven applications.
• Develop and maintain performance test scripts using leading tools (e.g., JMeter, Gatling, Load Runner, K6).
• Collaborate with development, operations, and data platform teams to identify performance bottlenecks and optimize system performance.
• Set up and execute end‑to‑end performance test scenarios in CI/CD pipelines.
• Analyze test results, monitor key performance metrics (throughput, latency, resource utilisation), and provide actionable insights and recommendations.
• Conduct performance baselining, capacity planning, and tuning for backend systems and data pipelines.
• Generate detailed performance test reports and communicate findings to technical and non‑technical stakeholders.
• Participate in architectural reviews to ensure performance and scalability best practices are incorporated.
• Mentor junior testers and contribute to ongoing improvement of the performance testing framework.

• 5–8 years in software performance testing with hands‑on experience in load, stress, spike, and endurance testing.
• Tools:
  Proficiency in at least one major performance testing tool (e.g., JMeter, Gatling, Load Runner, K6, Locust).
• Monitoring & Analysis:
  Experience with APM and monitoring tools (e.g., Grafana, Prometheus, New Relic, App Dynamics, Dynatrace).
• Programming/Scripting:
  Strong knowledge of scripting in Java, Python, or JavaScript for test automation and custom metric tracking.
• Protocols:
  Strong understanding of HTTP/HTTPS, REST, Web Socket, and database connectivity.
• Data Platforms:
  Experience testing data‑heavy systems such as Hadoop, Spark, Star Rocks, Iceberg, or similar distributed data platforms.
• Performance Engineering:
  Experience in result analysis, tuning JVM, database query optimisation, and cloud scaling (AWS/GCP/Azure).
• CI/CD Integration:
  Hands‑on experience integrating performance tests into pipelines (Jenkins, Git Hub Actions, Azure Dev Ops).
• Soft Skills:
  
  Analytical thinking, effective communication, and problem‑solving abilities.

• Experience with benchmarking frameworks for large‑scale data platforms.
• Knowledge of containerised environments (Docker, Kubernetes).
• Exposure to observability stacks (ELK/EFK, Open Telemetry).
• Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
• Exposure to AI / Generative AI applications or machine learning model testing.

Symphony

AI Enterprise IT is part of the Symphony AI group with over 3000 talented leaders, data scientists, and other professionals incubate and build Symphony

AI Group solutions.

Symphony

AI Enterprise IT, an innovative AI‑powered firm based in Palo Alto, California. Our product range includes ITSM, ITAM, digital agent, and service automation solutions. With a global footprint covering North America, Southeast Asia, the Middle East, and India, we’re at the forefront of IT innovation. Recognised as an honourable mention in the 2024 Gartner Magic Quadrant for ITSM Platforms and consistently awarded as a Gartner Peer Insights Customers' Choice for five consecutive years, Summit leads the way in industry innovation.