Senior Cybersecurity Engineer for Multi-Cloud Environments

Description Leidos is seeking a talented and experienced Senior Cybersecurity Engineer to join our team supporting a significant contract with the U.S. Air Force Cloud One Architecture. This role presents a fantastic opportunity to leverage your expertise in enhancing a robust, multi-cloud environment, while contributing to the essential mission of ensuring system resilience, security, and cost efficiency. Location: This position will be hybrid remote and may require travel for customer or corporate meetings near Hanscom AFB (Boston, MA), Huntsville, AL, or Reston, VA. Key Responsibilities Include: Design, deploy, configure, operate, and maintain the authorizations and accreditation of the Cloud One Architecture across multiple cloud platforms including AWS, Azure, Google Cloud, and Oracle Cloud within both NIPRNet and SIPRNet environments. Act as a Subject Matter Expert (SME) for IT stakeholders involved in system design, system builds, and Authority to Operate (ATO) efforts focused on cybersecurity requirements. Support the cybersecurity authorizations team in developing necessary artifacts to meet milestones such as Interim Authority Test (IATT) and Authorization to Operate (ATO). Engineer solutions to facilitate the migration of security controls from NIST 800-53 Rev 4 to Rev 5. Ensure compliance with SCCA, Cloud SRG, and other STIG/SRG requirements. Support Continuous Authorization to Operate (cATO) in a DevSecOps or cloud-based environment, focusing on automated control validation and continuous monitoring. Create and maintain RMF-required authorization documentation and support ATO sustainment activities for Cloud One and DPaaS environments. Conduct regular Insider Threat Assessments and document findings in the System Security Plan. Continuously monitor system resources through automated scanning tools and implement reporting mechanisms to support cybersecurity compliance. Ensure patch compliance using approved technical solutions and perform necessary remediation activities. Develop and execute plans for enterprise vulnerability and compliance scanning. Implement and verify security procedures and system security requirements, collaborating on the execution and review of STIG checklists for various components. Participate in briefings regarding cybersecurity status, including preparation of relevant materials. Work closely with government cyber and technical teams to fulfill ATO conditions and requirements. Prepare detailed technical documentation for development and operations. Mentor junior staff and encourage a collaborative learning environment. Minimum Qualifications: Bachelor's degree with 8+ years of relevant experience, or Master's degree with 6+ years of relevant experience, or equivalent experience. At least 6 years of experience with cloud-hosted systems and applications. Must possess an Interim Secret clearance with the ability to obtain a Secret clearance to remain employed. U.S. citizenship is required. Certifications: CompTIA Security+ or equivalent (IAT-2). Preferred Qualifications: Experience with USAF Cloud One or Platform 1. Familiarity with automation/tools like EvalSTIG, STIG Manager, Ansible, etc. Knowledge of Zero Trust Architecture. Cloud certifications in AWS, Azure, Google, or Oracle environments. Certifications: CISSP or equivalent (IAT-3). If you're looking to make an impact and challenge the status quo, Leidos is the place for you. Join our team in moving beyond conventional solutions to meet urgent mission requirements.