As a Test Engineer Sr, you will report to the Software Development Engineer Senior Manager, contributing to understanding feature requirements and usage across applications and networking groups. Your role involves creating software test plans with a strong focus on test automation, participating in project planning, code demos, and quality procedures. You will also perform end-to-end testing with third-party vendors, including troubleshooting and escalation. Candidates should have a Bachelor's degree or equivalent experience, 5 years in testing tools, and expertise in automated testing processes and C# programming, alongside business-level English proficiency.