Senior Cloud Cyber Security Engineer

Leidos has an exciting opening for you, our next Senior Cloud Cybersecurity Engineer, to play a critical role in the accreditation and operation of a state-of-the-art technology stack under the DOMEX Technology Platform (DTP) where we support our client’s mission to centralize and standardize Tasking, Collection, Processing, Exploitation and Dissemination (TCPED) of Open Source Intelligence (OSINT) across the Defense and Intelligence Community enterprises. We leverage cloud-based computing, artificial intelligence (Al), machine learning (ML), and cross-domain transfer systems to provide cutting edge data exploitation, enrichment, triage, and analytics capabilities to the Defense Intelligence Enterprise.Through training, teamwork, and exposure to challenging technical work, let Leidos show how to accelerate your career path. 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 Analysis Solutions Business Area!Key Responsibilities include:Collect, review, assess, and provide feedback on system cybersecurity, architecture, and engineering artifactsCollect, review, assess, and provide feedback on system cybersecurity Body-of-Evidence (BOE) results required to support DoD & IC RMF cybersecurity authorization processesConduct periodic compliance scanning, vulnerability assessments, and risk analysis for cloud-based systemsImplement and manage security controls for containerized applications and the underlying cloud-based infrastructureCollaborate with DevSecOps, infrastructure, and software development teams to ensure secure coding and engineering practicesEnsure integration of security measures into software development processes, CI/CD pipelines, and engineering toolsDevelop, maintain, and execute shell commands, scripts, and automation code for STIG compliance and validationImplement and manage continuous monitoring solutions of cloud-based architecturesSupport Government cybersecurity officials & program personnel in preparing cybersecurity packages, including Interim Authority to Test (IATT) packages, Authority to Operate (ATO) packages, and Change Requests (CRs)Stay current with emerging cloud security threats, technologies, and best practicesBasic Qualifications:Clearance: Active or current Top Secret with SCI eligibility and the ability to obtain PolygraphEducation & Experience: Bachelor’s degree in Cybersecurity, Computer Science, Information Assurance, Engineering, or related technical discipline and 12-15 years of relevant experience OR Master’s degree with 10-13 years of relevant experience. Additional years of experience may be considered in lieu of a degree. ISSO experience must be supplemented with demonstrated technical expertise.Certification: At least one DoD 8570.01-M IAT or IAM Level II or higher certification e.g., CCNA Security, CySA+, Security+ CE, CISSP (or Associate) and the ability to obtain Privileged User Account (PUA)/elevated access per DoD 8570 policy To be successful in this role you will need:Hands-on experience with Linux operating systems and scripting languages such as Bash, Python, Perl or similarExperience with Commercial Cloud Services (C2S) and cloud-based enterprise services, preferably AWSExperience securing software applications and infrastructure by implementing security controlsExperience supporting RMF processes such as authorization and continuous monitoringExperience with NIST SP 800-37, SP 800-53 Rev4 or Rev5, CNSSI 1253, and applicable DoDI publicationsExperience implementing and validating STIG compliance across operating system, database, server, and application tiersExperience with RMF/GRC platforms such as Xacta or eMASSExperience with performing compliance & vulnerability scans and related security tools for SIEM & event management, SAST, DASTDemonstrated understanding of unique security threats in the cloud and the required corresponding system security postureDemonstrated understanding of how to secure Kubernetes platforms and integrate security into CI/CD pipelines, containers, and platform orchestration tools.You will wow us even more if you have these skills:Active TS/SCI with polygraphExperience supporting the Intelligence Community in RMF activities with ICD 503 and related compliance directives, policies, proceduresMultiple IAT/IAM II or III advanced certifications such as:CISSP-ISSAP/ISSEPCISMCCSPSecurity X/CASP+Cloud certifications such as:AWS Solutions ArchitectAWS Security SpecialtyKubernetes and Cloud Native Associate (KCNA)Certified Kubernetes Administrator (CKA)Certified Kubernetes Security Specialist (CKS)Linux certifications such as:Linux+Red Hat Certified System Administrator - Enterprise Linux (RHCSA)Red Hat Certified Engineer - Enterprise Linux (RHCE)Red Hat Certified Architect - Enterprise Linux (RHCA)Prior network engineering experience with encryption and transport in the cloudExperience applying DoW Zero Trust frameworkExperience applying security controls to various AI implementationsUnderstanding of secure software development practices and code reviews in Agile and DevSecOps environmentsNMECDTP-LeidosIf 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.Original Posting:June 24, 2026For 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 $131,300.00 - $237,