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Tax season is seasonal in the extreme: a large share of our customers file in the final days, and on Tax Day they arrive at once. The Performance Testing Engineer is how we know, before that day, that the system will hold. You will build and run tests that push our applications, services, databases and network past their limits on purpose, find where they break, and turn what you learn into concrete fixes, capacity numbers and early-warning signals for the teams that run production.
This is not a scripting-only role. The load test team owns a full-scale environment of its own: load generators, application servers, container platforms, databases, load balancers and mock external services. You will administer it, deploy code to it, break it, tune it and rebuild it. You will work daily with developers, IT and QA, and your findings will change how systems are configured and how code ships.
Tax season is seasonal in the extreme: a large share of our customers file in the final days, and on Tax Day they arrive at once. The Performance Testing Engineer is how we know, before that day, that the system will hold. You will build and run tests that push our applications, services, databases and network past their limits on purpose, find where they break, and turn what you learn into concrete fixes, capacity numbers and early-warning signals for the teams that run production.
This is not a scripting-only role. The load test team owns a full-scale environment of its own: load generators, application servers, container platforms, databases, load balancers and mock external services. You will administer it, deploy code to it, break it, tune it and rebuild it. You will work daily with developers, IT and QA, and your findings will change how systems are configured and how code ships.
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Experience testing or operating server-side web applications, including reading runtime behavior under load (garbage collection, thread pools, connection pools).
Experience with Linux administration and with containers and orchestration such as Kubernetes.
Working knowledge of monitoring and observability tools such as Prometheus, Grafana, Elastic and Kibana, and the ability to build dashboards and alerts.
Strong scripting in at least one language and comfort with Git.
Daily use of AI coding assistants such as Claude Code or Codex to write, debug and analyze code.
Experience with automation testing and with browser developer tools for inspecting HTTP traffic.
Systematic troubleshooting: you form a hypothesis, isolate variables, and let the data decide.
A real interest in performance: how systems behave at their limits and why.
Load testing tools such as JMeter, Gatling, k6 or Locust.
Relational database administration or tuning, including replicated or clustered deployments.
Configuration management and infrastructure automation tools.
Cloud infrastructure experience, including running or costing test environments there.
Network diagnostics with Wireshark, Fiddler or similar, and familiarity with load balancers.
Software development experience in a compiled backend language.
Data analysis in SQL against large datasets.
Privately held U.S. tax-preparation software company serving taxpayers with free federal and low-cost state online filing.
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