SAIC is seeking Senior Systems Engineer to drive technical solutions for complex problems in advanced systems development. This role requires a highly motivated individual to lead system requirements analysis, architecture design, integration, and testing while collaborating with cross-disciplinary teams to execute mission-critical projects. This role supporting the U.S. Space Force’s Overhead Persistent Infrared (OPIR) mission area ground segment interfaces with both a prime contractor and USSF stakeholders to deploy next-generation OPIR capabilities. Location is either in Boulder, Colorado or Dayton, Ohio. Responsibilities: • Coordination with the acquisition program office and operational end-users to elicit, detail, and document operational concepts and stakeholder needs for the operation of a MOSA architecture hosting high-performance data processing applications. • Development and analysis of system requirements which address identified stakeholder needs. • Support to SW development teams in the design of system architectures which meet established requirements and align with customer concepts of operations. • Coordination with integration, verification, and test teams to support requirements verification and validation. • Managing the documentation of operational concepts, stakeholder needs, system requirements, and system architecture using Model-Based Systems Engineering tools • Staff mentoring and process improvement within the systems engineering team • Bachelor's degree in Engineering, Computer Science, or related field. • Minimum of 5+ years of experience in systems engineering with a strong track record of leading complex projects. • Active Secret Clearance • Demonstrated expertise in requirements analysis, system design, and integration. • Experience in working within an Agile development environment and applying systems engineering best practices. • Knowledge of DoD processes and standards, including working with classified systems. • Master’s degree in a technical field or MBA with technical credentials. • 10+ years of relevant experience across multiple domains, including space systems, C4ISR, or AI/ML integration. • Familiarity with Model-Based Systems Engineering (MBSE) tools like Cameo Systems Modeler or similar. Desired: • Master’s degree in a technical field or MBA with technical credentials. • 10+ years of relevant experience across multiple domains, including space systems, C4ISR, or AI/ML integration. • Familiarity with Model-Based Systems Engineering (MBSE) tools like Cameo Systems Modeler or similar. • Certifications such as INCOSE CSEP, PMP, or related are a plus.