Principal Systems Engineer
Confirmed on the employer's own hiring board on Nov 1, 2026. First seen by Alion on Aug 31, 2026. SAIC scores B on the Alion truth index.
Make a difference for national security by joining a team of dedicated professionals in El Segundo, CA who assist the US Space Force in developing and deploying the satellites and ground systems for Nuclear Detection System (NDS) capabilities. These systems provide timely and critical nuclear detection data to our warfighter to ensure national security mission success.
Our Systems Engineering & Integration (SE&I) team has an immediate need for a hybrid Principal Nuclear Detection System Engineer (USNDS) in El Segundo, CA with mission experience in space/ground systems for the management, development, and deployment of NDS systems to ensure on-time delivery of capabilities. As a SE&I professional, candidates will provide System Engineering (SE) services across all SE disciplines with emphasis in integration and test toward delivering operational capabilities into an enterprise system architecture.
Job Responsibilities:
Provide Systems Engineering expertise with focus on Ground software development and verification to SSC NDS program office as a member of the SE&I team.
Support Ground System DT&E, OT&E and associated milestone deliverables reviews and design maturity assessment.
Perform requirement definition & allocations, refine enterprise operational concepts, evolve system architectures, and develop verification methodologies toward operational acceptance.
Conduct and maintain the program technical baseline including Requirements Specification, ICDs, and Systems Engineering processes.
Conduct mission analysis to define technical requirements and interfaces, provide analysis of alternatives, guide development, evaluate expected performance against requirements and mission needs.
Perform milestone readiness reviews to demonstrate the design meets milestone criteria, specifications and specified customer requirements.
Collaborate with internal and external stakeholders including executive officials, military officers, development contractors, and end users.
Develop briefings and assessments to a variety of audiences and must be able to convey information in a clear and articulate manner to Government leadership.
Required Education, Experience, and Qualifications:
Active Secret Clearance and willing to obtain a Top Secret clearance
Bachelor’s Degree and nine (9) or more years of experience. Masters Degree and (7) or more years of experience
Experience with systems development, integration & test throughout the lifecycle
Relevant DoD space and ground system development experience
Experience leading combined hardware and software integration activities
Experience with space-ground systems architectures and lifecycle support
Experience implementing agile development techniques
Strong leadership, interpersonal communications skills
Experience in collaborating with Government & contractor teams
Desired Education, Experience, and Qualifications:
Master’s Degree in engineering, science or related technical field
Experience in large Government systems development and acquisition
Thorough understanding of SSC space & ground systems, including Navigation, Missile Warning, and NDS systems design, integration and test
Active TS or TS/SCI Clearance