Senior Systems Engineer

Senior Systems EngineerLeidos has a new and exciting opportunity for a Senior Systems Engineer in our Intelligence Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!Leidos supports critical missions within the Directorate of Operations and Directorate of Cybersecurity, delivering systems engineering solutions that enable cryptanalysis, foreign intelligence operations, and protection of National Security Systems. Our team explores, designs, and integrates emerging technologies to provide the nation with a decisive advantage over adversaries.We're seeking a Senior Systems Engineer to lead complex systems engineering efforts supporting cryptologic and cybersecurity missions. You'll drive requirements development, conduct analysis of alternatives, and lead integration efforts for emerging technologies while providing technical leadership to Government stakeholders and engineering teams.Primary ResponsibilitiesLead requirements analysis, solution design, and value modeling for complex cryptologic and cybersecurity systemsDevelop comprehensive CONOPs, system architectures, ICDs, and technical documentationLead integration, testing, and evaluation of prototypes and systems per NSA standardsConduct risk analysis and develop mitigation strategies for technical challengesDevelop XML schemas, metadata models, and data element dictionaries for mission systemsIntegrate specialty engineering disciplines (reliability, supportability, security) into development processesMentor junior engineers and coordinate knowledge transfer initiativesQualificationsBachelor's degree in Engineering plus 7 years of relevant experience, OR Master's plus 5 years, OR Doctoral plus 3 yearsAlternatively: Bachelor's/Master's/Doctoral in Computer Science, Mathematics, or Physics with equivalent experienceFor non-ABET programs: degree must include differential and integral calculus plus 5 of 18 specified technical areas*Active TS/SCI with polygraph clearance requiredDemonstrated technical leadership in systems engineering for complex programsExperience with analysis of alternatives, value modeling, and risk managementAbility to work in a SCIF environment and travel CONUS/OCONUSIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.