Leidos has a new and exciting opportunity for a Sr. Systems Engineer in our National Security Sector's (NSS) 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!  

Successful candidates must possess and apply expertise on multiple complex work assignments. Assignments may be broad in nature, requiring originality and innovation in determining how to accomplish tasks. Operates with appreciable latitude in developing methodology and presenting solutions to problems.

Position responsibilities will include:

Lead system engineering, hardware, and software analysis to support the Navy’s Key Management project portfolio.Define and apply systems engineering processes to develop systems that meet customer requirements.Manage requirements, including decomposition, allocation, verification, and validation for subsequent use by the development and test teams.Define and develop System Architecture, CONOPS, and use case development using systems engineering methodologies.Participate and lead discussions at customer meetings, working groups, and technical interchange meetings associated with the work performed in this project.Required to research, design, write, and review a wide range of technical documentation that will include but not be limited to: technical manuals, design specification documents, interface requirements specification, system user guides, reference manuals, installation guides, and data sheets that may be required to assist with the design, integration, testing, and fielding of the system; will provide project briefing materials upon request.

Basic Qualifications :

Position requires US citizenship and an active Secret DoD security clearance.Bachelor’s Degree in Systems Engineering, Computer Science, or related field and 12+ years of system engineering experience.Demonstrated experience on the Left Side of the V-Model for Systems Engineering, experience in requirements decomposition.Experience that demonstrates ability to analyze risks and uncertainties and ability to navigate projects through established processes, software design patterns, Agile Development methodologies and an understanding of complex system development methods.DoD 8570 approved security certification (i.e., Security +) (Will be required 90 days after hire).

Desired Qualifications:

Working knowledge and experience with computing and related technologies including

Software development methodologies such as TDD, Peer programming, debuggingSoftware languages such as C/C++, C#, JavaDevelopment frameworks such as smartGWT, NetbeansSoftware security and quality assessment and measurement such fortify, sonarConfiguration Management and version control systems like PVCS, Git, SVNScripting support such as Python, bourne/c shell/k shell/ bashCollaboration tools like MatterMost, TeamsWeb server configuration and use with servers such as NGINX, JBoss/Wildfly, ApacheArtificial Intelligence including deep learning, ANN, CNNAI related frameworks such as pytorch, tensor flowDatabase design, configuration, replication, backup, archive, and restoreStructured Query Language (SQL)Continuous integration environments (e.g., Jenkins, GitLab-CI).

Familiarity with System Architecture development and description concepts including

Descriptive framework including DoDAFArchitecture development and system modeling tools such as Enterprise ArchitectDesign refinement with workflows and use casesArchitecture forms including centralized, client-server, distributed, virtualized, and cloud basedData replication, sharing, and shadowingContainerized environments and deployment including Docker

Understanding of Cryptographic Key Management based on EKMS and KMI.

COMSEC Operations and AccountabilityTransfer, receipt, accounting, inventory, reconciliation, and reportingWarehouse operations, receiving, distribution, reporting, and automation

Familiarity with Agile processes including

Agile / ScrumTools and environment such as jira, VersionOneAgile use, automation, configuration, tracking, and optimizationDetailed knowledge of Networking and Interface technologies includingWeb services including RESTful and SOAPDocumentation with IETF/RFCsOpenAPI standardsASN.1 constructs, usage, compilers, and implementations

Understanding of Security requirements and implementation including

Windows and Unix security architecturesSecurity tools and enforcement with McAfee EPOPatch management and enforcementAuthentication, integrity, and confidentiality services and implementationPublic Key Infrastructure with trust chains, certificates, revocation checking, cert validationCryptographic mechanisms such as SHA, HMAC, Elliptic Curve, and quantum resistance approachesCryptographic Message Syntax (CMS)Security monitoring including gathering, reporting, and response using SIEMSecurity frameworks adhering to STIGs, RMFStrong background in Requirements Specification and Management withRequirements specification and control processesRequirements in an agile environmentRequirements traceability from architecture development through Test, Accreditation, and Deployment

Understanding of full life-cycle testing with

Test planning, conduct, reportingClient-Server environmentsWeb services testingTest automationPerformance and load testingAnalysis and Metrics of testing Proficiency with MS Office products includingOffice applications Word, Excel, Visio, and PowerPointOffice tool automation/scripting (Word, Excel, Access)General writing and organizational skills are neededOriginal Posting Date:2025-02-26

While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $104,650.00 - $189,175.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.