> Markdown version of [/jobs/ext/3762302-lead-test-and-resiliency](https://www.wearedevelopers.com/jobs/ext/3762302-lead-test-and-resiliency). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Test and Resiliency - **Company:** TDK Technologies, LLC - **Location:** United States - **Experience:** Expert - **Contract:** Contract - **Skills:** Automation of Tests, Failover, Log Analysis, TCP/IP, Transmission Control Protocol (TCP), Integration Tests - **Published:** October 15, 2026 - **Apply:** https://www.dice.com/job-detail/e41a8334-038b-43f2-841e-fd9981862fdc ## About the Role Resiliency, performance, network, and integration testing. TCP/IP and packet-level troubleshooting. Automated test frameworks and failure-injection techniques. Performance and capacity tools for high-throughput services. Strong defect analysis and technical documentation ## Description Define and execute the validation strategy for functional behavior, transaction integrity, performance, failover, recovery, monitoring, and production readiness. Core Responsibilities Build end-to-end test plans across representative lab and lower environments. Validate traffic movement and persistent TCP connections during planned maintenance and failure scenarios. Verify there is no unacceptable message loss, duplication, ordering issue, or customer-visible interruption. Execute functional, integration, regression, negative, failover, recovery, load, soak, and capacity testing. Validate proxy bypass and return-to-legacy recovery procedures. Reproduce defects, analyze logs and packet captures, and partner with developers on root-cause analysis. Define test evidence, acceptance criteria, certification results, and operational sign-off inputs.