Job title: Senior Test and Resiliency Engineer
Location: St. Louis, MO in USA Hybrid role
Project Type: Long term Contract
Start date: Immediate
Interview Process (Virtual or Face-to-face):1st round virtual, second round face to face
Minimum years of experience required: 5 years
Must Have Skills:
Resiliency, performance, network, and integration testing, TCP/IP and packet-level troubleshooting, Automated test frameworks and failure-injection techniques
Nice to Have Skills: Financial messaging, ISO 8583, payment switching, telecom, or other high-availability transaction platforms. Proxy, load-balancer, network-service, or active-active failover testing
Detailed job description & 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.
