The Software Test Engineer III is responsible for leading testing processes, designing comprehensive test plans, developing testing strategies, and architecting testing frameworks for large and complex aerospace software projects. You will participate in the development and execution of comprehensive test plans, test cases, and test procedures to verify the functionality, performance, and reliability of aerospace software systems used in space vehicles and other aerospace applications. In this role you will also be responsible for coordinating testing activities, ensuring thorough coverage of all requirements, and performing defect triage. Your role will involve significant interaction with cross-functional teams, including software development, systems engineering, and quality assurance to ensure compliance with technical specifications and adherence to software quality standards. You will also mentor and guide junior engineers, fostering a culture of continuous improvement and technical excellence while contributing to the success of complex space missions. Key responsibilities include developing and executing test plans, cases, and procedures to ensure software functionality, performance, and reliability. This involves creating and reviewing automated test scripts, collaborating with developers to design effective test strategies, and managing the defect lifecycle from discovery to resolution. Additional duties include optimizing testing processes, performing regression testing, maintaining test documentation, and implementing automated tools to enhance efficiency. The role also requires mentoring junior engineers, participating in code reviews, staying updated on industry best practices, and designing complex test systems to meet project requirements.