Senior-Software Engineer needed by ATandT Services Inc. in Plano, TX to responsible for the overall delivery process of software applications and service. Design, develop, test, deploy, troubleshoot, and maintain with a focus on automation. Gather and review software requirements and user stories. Provide estimates and create software design specifications. Collaborate with engineers and architects to assess and test hardware and software interactions. Execute a specific development methodology through application of various programming languages. Create and execute automated test plans and strategize utilizing business requirements. Collaborate with engineers, architects, and clients to validate test environments, test data, and test results. Design and implement code fixes, validate outcomes against expected results, and produce associated reporting. Perform unit testing, dynamic application security testing, interface testing, integration testing, end-to-end testing, and user acceptance testing. Support applications and solve configuration and environment issues. Support the software deployment process. Use iQi mobile and platform technology, end-to-end automation, and data validation to support mobile software development. Perform Android software development and UI testing on Android platform. Triage and solve production crashes involving crash symbolization, multi-threading, and synchronization. Apply knowledge of Keysight and RandS LTE and 5G mobile network simulator. Develop and qualify iQi platform technology in Databricks. Utilize Android Studio, Java, Python, and C++. Apply knowledge of Jenkins, Jira, and Zephyr. Debug mobile experiences using Qualcomm QXDM.