QA Performance Engineer II

About Juniper Square

Our mission is to unlock the full potential of private markets. Privately owned assets like commercial real estate, private equity, and venture capital make up half of our financial ecosystem yet remain inaccessible to most people. We are digitizing these markets, and as a result, bringing efficiency, transparency, and access to one of the most productive corners of our financial ecosystem. If you care about making the world a better place by making markets work better through technology – all while contributing as a member of a values-driven organization – we want to hear from you.

Juniper Square offers employees a variety of ways to work, ranging from a fully remote experience to working full-time in one of our physical offices. We invest heavily in digital-first operations, allowing our teams to collaborate effectively across 27 U.S. states, 2 Canadian Provinces, India, Luxembourg, and England. We also have physical offices in San Francisco, New York City, Mumbai and Bangalore for employees who prefer to work in an office some or all of the time.

About Your Role

As a QA Performance Engineer II at Juniper Square, you will collaborate with the product and engineering teams to help define and drive our performance and load testing efforts. You must be detail oriented, passionate about product quality, and a strong advocate for the end user experience.

What You’ll Do

• Review functional and non-functional requirements, technical design documents, and provide meaningful feedback to identify performance risks early.
• Design, develop, and execute performance, load, and stress tests for web and backend systems.
• Build and maintain performance test scripts using Python, primarily leveraging Locust (tool-agnostic mindset, but Locust experience is a strong plus)
• Collaborate closely with development, QA, DevOps, and SRE teams to define performance benchmarks, SLAs, and acceptance criteria.
• Analyze test results to identify bottlenecks related to application code, APIs, databases, infrastructure, or third-party dependencies.

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• Produce clear and actionable performance test reports, highlighting trends, risks, and recommendations for optimization.
• Integrate performance tests into CI/CD pipelines and support continuous performance testing practices.
• Monitor application performance during releases and contribute to capacity planning and scalability discussions.
• Advocate for performance engineering best practices and help shift performance testing left in the SDLC.
  
  

Qualifications

• Education: Bachelor's degree in Computer Science, or equivalent professional experience.
• Experience: 4-7 years in Software Quality Assurance, with at least 2 years focused on performance, load, and stress testing.
• Performance Testing: Strong hands-on experience designing and executing performance test strategies for web applications and APIs.
• Programming Skills: Strong proficiency in Python, with the ability to write clean, maintainable, and scalable test code.
• Tools and Systems: Experience with performance testing tools such as Locust (preferred), JMeter, Gatling, or similar

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• Metrics & Analysis: Solid understanding of performance metrics (response time, throughput, latency, error rates, resource utilization) and profiling techniques.
• APIs & Backend: Hands-on experience testing REST APIs and backend services under load.
• CI/CD and SDLC: Familiarity with CI/CD pipelines, version control systems (Git), and integrating performance tests into automated workflows.
• Databases: Basic knowledge of databases and how database performance impacts overall system behavior.
• Cloud and Deployment: Knowledge of cloud environments (e.g., AWS) and experience with application deployments, is a plus.
• Test Process: Experience in performance test plans, scenarios, workload models, and test data strategies.
• Soft Skills: Excellent analytical and problem-solving abilities, attention to detail, and the ability to work independently within Agile development teams.
• Communication: Clear written and verbal communication skills, with the ability to explain performance findings to both technical and non-technical stakeholders.
  
  

At Juniper Square, we believe building a diverse workforce and an inclusive culture makes us a better company. If you think this job sounds like a fit, we encourage you to apply even if you don’t meet all the qualifications.