Senior QA Performance Testing

Job Title: Performance Test Engineer / Performance QA Engineer

About Us

Paytm is India's leading mobile payments and financial services distribution company. A pioneer of the mobile QR payments revolution in India, Paytm builds technologies that empower small businesses with payments and commerce solutions. Paytm’s mission is to serve half a billion Indians and bring them into the mainstream economy through the power of technology.

Job Summary

We are seeking a skilled Performance Test Engineer to design, execute, and analyze performance tests to ensure application scalability, stability, and responsiveness under varying load conditions. The ideal candidate will have hands‑on experience with industry‑standard performance testing tools and a strong understanding of system architecture, monitoring, and troubleshooting.

Key Responsibilities

• Develop comprehensive performance test strategies and plans aligned with system requirements, project timelines, and business goals.
• Understand application architecture and identify critical business transactions for performance validation.
• Design realistic workload models to simulate real‑world usage scenarios.
• Create, maintain, and execute performance test scripts using tools such as JMeter, LoadRunner, Gatling, or similar.
• Conduct baseline, load, stress, and scalability testing to evaluate system behavior under different conditions.
• Monitor system performance using tools like InfluxDB, Grafana, JVM monitoring tools, and MAT (Memory Analyzer Tool).
• Analyze test results to identify performance bottlenecks and system limitations.
• Collaborate with development and infrastructure teams to troubleshoot and resolve performance issues.
• Assess system scalability and recommend optimizations to improve performance and reliability.
• Generate detailed performance test reports, including metrics, findings, and actionable recommendations.
• Work with stakeholders to gather and validate Non‑Functional Requirements (NFRs), SLAs, and KPIs.
• Perform API and service‑level testing using tools like Postman and SOAP UI, including WebSocket testing.
• Communicate performance insights and recommendations clearly to both technical and business stakeholders.

Performance Testing Lifecycle Responsibilities

• 3+ years of understanding system architecture and components
• Identify critical user journeys and transactions
• Design workload models and test scenarios
• Prepare and validate test scripts
• Execute baseline tests
• Perform load, stress, and endurance testing
• Monitor application and infrastructure performance
• Analyze results and provide recommendations

Required Skills & Qualifications

• 3+ years of strong experience in performance testing and engineering
• Proficiency in tools such as JMeter, LoadRunner, Gatling, or equivalent
• Experience with monitoring tools like Grafana, InfluxDB, JVM tools, and MAT
• Knowledge of API testing (Postman/SOAP UI) and WebSocket testing
• Solid understanding of system architecture, scalability, and distributed systems
• Experience in analyzing performance metrics and identifying bottlenecks
• Familiarity with NFRs, SLAs, and KPIs
• Strong analytical, problem‑solving, and communication skills
• Ability to work collaboratively in cross‑functional teams