Information Assurance (IA) System Engineer at Leidos

The Leidos Defense & Intelligence Group has a current opening for Information Assurance (IA) System Engineer supporting the U.S. Government in a challenging dynamic setting located in Chantilly Virginia. The position requires an active TS/SCI clearance with Polygraph. The IA System Engineer assists in IA system and networking design and integration efforts and implements customer policies and operating procedures to ensure the security of mission systems protecting the systems from intentional or inadvertent access that may cause damage or destruction. The IA System Engineer will work in a highly collaborative environment with teammates key stakeholders and the Government customer to ensure mission continuity and support to the intelligence community. This unique opportunity will allow you to participate on a high-visibility DoD/Intel program that provides IT support systems integration and life cycle support application development network engineering information systems security (ISS) and 24x7x365 support to mission-focused customer.Primary ResponsibilitiesParticipate as the primary security engineering representative on engineering teams for the design development implementation and/or integration of secure networking IA architectures and enclave computing environments.Provide specifications and detailed schematics for IA system and network architecture. Provide specific detailed information for hardware and software selection implementation techniques and tools for the most efficient solution to meet business needs including present and future IA requirements.Monitor the results of production IA activities to support implementation of the overall IA programProduce documentation necessary to obtain Information Assurance (IA) Certification/re-Certification and Accreditation (C&A) to support acceptance testing and evaluation of all program office systems in production.Perform or monitor security testing of systems to ensure security features are functioning properly in support of certification and accreditation of production items.Conduct IA testing of computing systems and network designMaintain technical expertise in all areas of IA system network and computer hardware and software interconnection and interfacing such as routers firewalls gateways storage arrays etc.Evaluate and report on new IA technologies to enhance capabilities of the network and computing environment.Recommend action or technical options when planned accomplishments or production IA operational goals are not achieved.Understand the site and enterprise well enough to work through IA system and network-related issues with other segments at the facility and across the enterprise.Support the Government in the enforcement of the design and implementation of trusted relationships among external systems and architectures.Apply knowledge of IA policy procedures and workforce structure to design develop and implement secure networking computing and enclave environments.Support security planning assessment risk analysis and risk managementBasic QualificationsMust have an active TS/SCI with Polygraph clearanceBachelors degree in Computer Science Information Assurance Information Security System Engineering or related discipline from an accredited college or university is required and 8 years of experience. 4 additional years of ISSE experience may be substituted for a bachelors degree.Position requires either Security or Certified Information Systems Security Professionals (CISSP) certification or equivalent.Familiarity with Tenable Nessus vulnerability scanning software preferred.If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.Original Posting:December 8 2025For U.S. Positions: 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 $107900.00 - $195050.00The Leidos pay range for this job level is a general guideline onlyand 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. Key Skills General Services,Advisory,Assessment,Jdbc,Automobile Service Employment Type : Full-Time Experience: years Vacancy: 1 Monthly Salary Salary: 107900 - 195050