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Baxter Logo Baxter · IT - Software Development

Principal Engineer, Test

India, Bengaluru · Job Posted May 29, 2026
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Job Description

The Principal Engineer, Performance Test is responsible for planning, designing, and executing performance tests to ensure that the platform and the applications meet the required performance criteria. This role involves collaborating with development teams, analyzing performance bottlenecks, and providing solutions to enhance system scalability, reliability, and responsiveness.

Job Responsibility

  • Develop and implement performance testing strategies and frameworks for applications and systems, including microservices
  • Define performance test objectives, metrics, and key performance indicators (KPIs)
  • Design, create, and execute performance test cases, scenarios, and scripts using performance testing tools (e.g., JMeter, LoadRunner, Gatling)
  • Simulate user loads to analyze the platform behavior under peak conditions
  • Conduct performance testing for microservices, focusing on API latency, throughput, and reliability under different loads
  • Evaluate the scalability of individual microservices and their interactions under various conditions
  • Analyze and test the performance of microservices in distributed architectures
  • Ensure proper functioning of service discovery, load balancing, and communication protocols (e.g., REST, gRPC, WebSocket)
  • Evaluate the impact of dependencies and latency across microservices
  • Optimize resource usage, including CPU, memory, and I/O for microservices
  • Monitor, collect, and analyze performance data during tests
  • Provide detailed performance reports, including root cause analysis, trends, and recommendations
  • Use tools and frameworks like Prometheus and Grafana stack to monitor microservices performance metrics
  • Work closely with developers, architects, and product managers to ensure performance considerations are incorporated early in the development lifecycle
  • Communicate performance test results and recommendations effectively to technical and non-technical stakeholders

Requirements

  • Bachelor's degree in computer science, Engineering
  • 12+ years of experience in performance testing role
  • Proven experience with performance testing tools such as JMeter, Loadrunner and Gatling
  • Experience in testing microservices and distributed systems
  • Strong knowledge of system architectures, microservices, and APIs (REST/gRPC)
  • Proficiency in scripting languages such as Python, Java, or JavaScript
  • Strong experience with monitoring tools (e.g., Prometheus, Grafana)
  • Hands-on experience with CI/CD tools and processes
  • Understanding of cloud platforms (e.g., AWS, Azure, Google Cloud) and containerization tools (e.g., Docker, Kubernetes)

Nice to have

  • Exposure on AI modelling for Performance Testing
  • Performance testing of AI models

What we offer

  • Support for Parents
  • Continuing Education/ Professional Development
  • Employee Heath & Well-Being Benefits
  • Paid Time Off
  • 2 Days a Year to Volunteer
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