This full-time Senior Staff Software Engineer role supports a leading government contractor in Huntsville, Alabama, focusing on safety-critical embedded systems for aerospace and defense platforms. The position requires a US Citizen with an active Secret clearance and involves leading the software engineering lifecycle from requirements analysis and object-oriented design to code implementation and integration testing. Key responsibilities include defining high-level software architectures, managing low-level hardware interfaces, and ensuring rigorous traceability across verification artifacts. The role appeals to engineers seeking to work on high-reliability missions involving missiles or satellites within a collaborative environment. The position is onsite with a flexible 9x80 work schedule that provides every other Friday off, complemented by a comprehensive benefits package including an Employee Stock Ownership Plan and tuition reimbursement.