Senior Principal Cyber Systems Engineer

Serco seeks a Senior Principal Cyber Systems Engineer for its Combat Air Force Distributed Mission Operations (CAF DMO) 3.0 program in Orlando, FL. The CAF DMO 3.0 program, via its Distributed Mission Operations Network (DMON), provides world-class integration training in large force and small team formats to combat units around the globe against cutting-edge threats in a boundless virtual battlespace. The U.S. Air Force can only utilize its full capability against modern threats in a virtual environment. Be a part of that environment and continue to make the USAF the best air force in the world.If selected, you will support the DMON Systems Security Engineering team with:Engaging security stakeholders—including the Security Controls Assessor (SCA), Program Security Officer (PSO), and Compliance & Vulnerability Assessment (CVA) teams—to review security architectures, plans, risks, and mitigation strategies.Designing, developing, and maintaining Ansible playbooks, agentic Artificial Intelligence (AI) workloads, and related automation to deploy and enforce security configurations across enterprise systems and perform cybersecurity tasks (e.g., security tests, continuous monitoring activities, etc.).Conducting system security assessments to validate compliance with applicable security controls, requirements, and organizational policies.Performing compliance scans and analyses to ensure system configurations align with DoD Information Systems (DISA) Security Technical Implementation Guides (STIGs) and other applicable security best practices.Executing functional testing of deployed security services and controls to confirm operational effectiveness and alignment with design intent.Working closely with various technical teams and stakeholders to integrate new security technologies, troubleshoot issues, remediate vulnerabilities, and improve security postures.To be successful in this role, you will have:An active DoD Secret Clearance with ability to obtain TS/SCI and SAP/SARBachelor’s Degree in STEM (Computer Science, Engineering, Information Technology, or related discipline) and 8 Years’ Experience; OR a Master’s degree with 6 years’ experience; OR a PhD with 4 years’ experienceDemonstrated experience implementing NIST 800-37 Risk Management Framework (RMF)Demonstrated experience implementing NIST 800-53 Security and Privacy ControlsFamiliarity with DISA STIGs and security best practicesDemonstrated experience developing and implementing Ansible playbooks within Red Hat Ansible Automation Platform (AAP) or similar automation frameworksDemonstrated experience conducting or supporting security assessments and continuous monitoring activitiesDemonstrated experience performing cybersecurity compliance and vulnerability scans, analysis, and reportingDemonstrated experience with scripting languages such as (Bash, Python, PowerShell etc.)Ability to troubleshoot and solve problems (e.g., breaking down problems, collaborating about problems and solutions, designing solutions, etc.)Ability to document concepts, approaches, and rationale in an understandable manner (especially as part of problem solving)Must possess, or obtain within six months, a DoD 8140 IAT Level II or higher (i.e. Security+, CySA+, CISSP)The ability to travel up to 10% of the time.Preferred Qualifications:Experience with implementing Joint Special Access Program (SAP) Implementation Guidance (JSIG)Prior experience as an Information Systems Security Engineer (ISSE)Possess cloud certifications such as AWS Security Specialty, Azure Security Engineer, or CCSPExperience engineering security solutions using Artificial Intelligence (AI)Possess an active DoD Top Secret security clearanceIf you are interested in supporting and working with a passionate Serco team- then submit your application now for immediate consideration. It only takes a few minutes and could change your career!Serco Inc. (Serco) is the Americas division of Serco Group, plc. In North America, Serco’s 9,000+ employees strive to make an impact every day across 100+ sites in the areas of Defense, Citizen Services, and Transportation. We help our clients deliver vital services more efficiently while increasing the satisfaction of their end customers. Serco serves every branch of the U.S. military, numerous U.S. Federal civilian agencies, the Intelligence Community, the Canadian government, state, provincial and local governments, and commercial clients. While your place may look a little different depending on your role, we know you will find yours here. Wherever you work and whatever you do, we invite you to discover your place in our world. Serco is a place you can count on and where you can make an impact because every contribution matters.To review Serco benefits please visit: complies with all applicable state and local leave laws, including providing time off under the Colorado Healthy Families and Workplaces Act for eligible Colorado residents, in alignment with our policies and benefit plans. The application window for this position is for no more than 60 days. We encourage candidates to apply promptly after the posting date, as the position may close earlier if filled or if the application volume exceeds expectations. Please submit applications exclusively through Serco’s external (or internal) career site. This is a U.S.-based role. If an applicant has any concerns with job posting compliance, please send an email to: .

Created: 2025-11-21