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Lead Performance Engineer in Sunnyvale, CAHybrid role

iFLOWSunnyvale, CA🇺🇸United StatesPosted Oct 14, 2026

Why This Role Stands Out

As a Lead Performance Engineer at iFLOW, you'll drive critical performance testing strategies for enterprise and cloud applications, gaining exposure to cutting-edge technologies and collaborating with diverse engineering teams. This hybrid role offers a fantastic opportunity to hone your skills in scalability and reliability, making you an invaluable asset to the company's success. You'll thrive here if you have a passion for optimizing applications and a knack for problem-solving, so don't miss out on this exciting chance to advance your career!

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Sunnyvale, CA, United States
Posted
4 days ago

Job Description

Job Title: Lead Performance Engineer
Location: Sunnyvale, CA Hybrid role
Duration: 6 months
Role Descriptions:
We are looking for a skilled Lead Performance Engineer to design, develop, and execute performance testing strategies for enterprise and cloud-based applications.
The ideal candidate has hands-on experience with JMeter, Load runner, K6, Gatling, Data Dog, Dynatrace skills, and solid expertise in API, Web and automation testing.
Candidate will work closely with development, QA, DevOps, and architecture teams to ensure applications are scalable, reliable, and performant.
Key Responsibilities
12+ Yrs of experience in Performance Engineering.
Design, develop, and maintain performance test scripts using Apache JMeter or similar tools for web, API, and backend systems.
Conduct load, stress, endurance, and scalability testing for applications and microservices.
Design, develop, and maintain automated test suites for Next.js applications, covering unit, integration, and E2E tests.
Perform API performance testing (REST/JSON, SOAP) and integrate with automation frameworks.
Analyze test results, identify performance bottlenecks, and provide actionable recommendations.
Monitor system performance metrics (CPU, memory, I/O, network) during test execution.
Collaborate with development and DevOps teams to optimize application and infrastructure performance.
Integrate performance tests into CI/CD pipelines.
Prepare detailed performance test reports and present findings to stakeholders.
Continuously improve testing frameworks, tools, and best practices.
Required Skills & Qualifications
Strong experience in performance testing and engineering best practices
Hands-on expertise with Apache JMeter (test plans, scripting, listeners, distributed testing)
Front end performance testing experience on Next.js application
Design and deployment of performance test framework
Experience with API automation and performance testing (REST, SOAP)
Knowledge of HTTP/HTTPS protocols, JSON, XML
Experience with performance monitoring tools (APM, server logs, JVM monitoring)
Familiarity with CI/CD tools (Jenkins, Git, etc.
Strong analytical, troubleshooting, and communication skills"

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