**Description** Leidos is Hiring an Infrastructure Engineer in the Annapolis Junction area! **An active TS/SCI with Polygraph is required to be considered for the role.** The Infrastructure Engineer will implement, maintain, and enhance complex infrastructure systems (e.g., multi-purpose hosting, virtualized environments, big data analytic systems, cloud environments, real-time systems, business management information systems, logging and monitoring systems, hardware, Active Directory, Linux/Unix- Windows- or OSx-based, storage area networks (SAN), LAN and WAN networking, and other infrastructure-related components) based upon documented requirements. Resolve reported system issues. Utilizes infrastructure engineering and design methodologies appropriate to the development/test/production environment. Provide specific input to the component system design to include hardware/software trade-offs, system reuses, use of COTS/GOTS and requirements analysis and synthesis from system level to individual system components with particular emphasis on complex networking topics. The Infrastructure Engineer will: + Perform system integration, system administration, or network engineering tasks. + Contribute to the development of IT and telecommunication system manuals and standard operating procedures. + Perform tasks in IT and telecommunication projects in at least (3) three of the following areas: + Windows or Linux server system administration (e.g., 2K3, 2K8, 7, 10, various Linux flavors) + Integrating GOTS/COTS/open-source solutions + Virtualization technology experience (e.g., VMWare, Zen, Citrix, KVM), networking and TCP/IP protocols (e.g., CISCO, Juniper) + Storage technologies (e.g., SAN, NAS, Fiber Channel, iSCSI, NFS) + Remote access (e.g., Juniper SSL VPN), or other IT infrastructure technologies + Design and deliver infrastructure solutions. + Work complex projects as senior contributor and as part of an integrated product team. + Have strong communication skills and experience working directly with customers. **Required Qualifications** + **TS/SCI with polygraph clearance** + BS in a technical field and 7+ years of Infrastructure Engineering experience OR 11+ years of experience without a degree + Dataflow experience within the last 5 years **Preferred Qualifications** + Network troubleshooting of complex issues, such as IPSec, VXLan, FWs, Load Balancing and DNS + Virtual Desktop Infrastructure (VDI) and thin client architectures + Security administration to include enterprise antivirus, malware detection, intrusion detection and audit solutions. + Open Source tools, such as Snort + Cloud technologies, such as OpenStack, Hadoop, and Cloudera + Amazon Web Services platforms and solutions KQW **Original Posting Date:** 2024-06-28 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 $81,250.00 - $146,875.00 The 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. REQNUMBER: R-00138519 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.