Sr. Systems Engineer

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, debugging
• Software languages such as C/C++, C#, Java
• Development frameworks such as smartGWT, Netbeans
• Software security and quality assessment and measurement such fortify, sonar
• Configuration Management and version control systems like PVCS, Git, SVN
• Scripting support such as Python, bourne/c shell/k shell/ bash
• Collaboration tools like MatterMost, Teams
• Web server configuration and use with servers such as NGINX, JBoss/Wildfly, Apache
• Artificial Intelligence including deep learning, ANN, CNN
• AI related frameworks such as pytorch, tensor flow
• Database design, configuration, replication, backup, archive, and restore
• Structured Query Language (SQL)
• Continuous integration environments (e.g., Jenkins, GitLab-CI).

Familiarity with System Architecture development and description concepts including

• Descriptive framework including DoDAF
• Architecture development and system modeling tools such as Enterprise Architect
• Design refinement with workflows and use cases
• Architecture forms including centralized, client-server, distributed, virtualized, and cloud based
• Data replication, sharing, and shadowing
• Containerized environments and deployment including Docker

Understanding of Cryptographic Key Management based on EKMS and KMI.

• COMSEC Operations and Accountability
• Transfer, receipt, accounting, inventory, reconciliation, and reporting
• Warehouse operations, receiving, distribution, reporting, and automation

Familiarity with Agile processes including

• Agile / Scrum
• Tools and environment such as jira, VersionOne
• Agile use, automation, configuration, tracking, and optimization
• Detailed knowledge of Networking and Interface technologies including
  • Web services including RESTful and SOAP
  • Documentation with IETF/RFCs
  • OpenAPI standards
  • ASN.1 constructs, usage, compilers, and implementations

Understanding of Security requirements and implementation including

• Windows and Unix security architectures
• Security tools and enforcement with McAfee EPO
• Patch management and enforcement
• Authentication, integrity, and confidentiality services and implementation
• Public Key Infrastructure with trust chains, certificates, revocation checking, cert validation
• Cryptographic mechanisms such as SHA, HMAC, Elliptic Curve, and quantum resistance approaches
• Cryptographic Message Syntax (CMS)
• Security monitoring including gathering, reporting, and response using SIEM
• Security frameworks adhering to STIGs, RMF
• Strong background in Requirements Specification and Management with
  • Requirements specification and control processes
  • Requirements in an agile environment
  • Requirements traceability from architecture development through Test, Accreditation, and Deployment

Understanding of full life-cycle testing with

• Test planning, conduct, reporting
• Client-Server environments
• Web services testing
• Test automation
• Performance and load testing
• Analysis and Metrics of testing 
• Proficiency with MS Office products including
  • Office applications Word, Excel, Visio, and PowerPoint
  • Office tool automation/scripting (Word, Excel, Access)
  • General writing and organizational skills are needed

Original 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.