SciTec is seeking a Senior Staff/Senior Software Test Engineer to join their Defense, Intelligence, & Space Solutions team in Boulder, Colorado. This role combines software engineering expertise with testing specialization, focusing on mission-critical defense and space systems. The position requires strong technical skills in Python programming and Linux environments, along with experience in OPIR (Overhead Persistent Infrared) systems. As a defense contractor, the role demands high security standards, including maintaining a DoD security clearance. The position offers an opportunity to work on cutting-edge defense and space technology while being part of a team dedicated to national security solutions. The role is ideal for experienced software test engineers who want to advance their careers in the defense sector while working with sophisticated technology systems. The position requires on-site work in Boulder, offering the chance to work in one of Colorado's most vibrant tech hubs while contributing to important national security initiatives.