Sr. Systems Security Engineer (Onsite - Sterling, VA)
About The Position
Collins Aerospace is seeking a highly skilled Systems Security Engineer to strengthen and secure enterprise environments supporting Department of Defense (DoD) missions. The ideal candidate will bring deep expertise in Risk Management Framework (RMF) compliance, secure network architecture, operating system administration, and cybersecurity best practices. This role requires hands-on proficiency across Windows and Linux platforms, network infrastructure, and security control implementation, along with the ability to support accreditation activities and sustain mission‑critical systems. The selected candidate will play a pivotal role in designing, securing, and optimizing infrastructure to ensure operational resilience, regulatory compliance, and performance excellence within a high‑security environment. This role will be worked onsite in Sterling, VA and requires an active and transferrable SECRET clearance.
Requirements
- Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience
- Active and transferable U.S. government issued Secret security clearance is required prior to start date
- RMF experience
- Linux or Windows experience
- Experience with Active Directory, VMware, Administration, SIEM Tools (Splunk or Kiwi), backup and recovery software, Trellix Endpoint Security and Tenable
Nice To Haves
- Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification)
- Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF
- Experience with data storage, NAS, and SAN technologies and solutions
- Experience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods
- Experience supporting engineers in software, simulations, and hardware development
- Experience with Microsoft WSUS
- Exchange scripting experience
Responsibilities
- Develop, implement, and maintain secure system architectures and technical solutions that meet all DoD RMF requirements, with a focus on risk reduction, automation, and control effectiveness
- Engineer, deploy, and harden enterprise network and system solutions to ensure high security, resilience, scalability, and performance across legacy and emerging infrastructures
- Configure, secure, and maintain Windows and Linux environments using industry best practices, approved security baselines, and automated configuration management tools
- Create, manage, and secure Infrastructure as Code (IaC) artifacts—such as Ansible and VMWare templates—to enable repeatable, auditable, and secure system provisioning
- Design and optimize Ansible automation workflows to enforce configuration compliance, patch management, and secure baseline deployment across multi‑platform systems
- Support RMF accreditation activities in collaboration with the Government ISSM, including documentation development, control implementation, assessment coordination, and continuous monitoring
- Install, configure, and troubleshoot enterprise firewalls, routers, and switches to maintain secure network segmentation, traffic integrity, and a robust defensive security posture
- Conduct structured hardware and software testing, vulnerability analysis, and security validation to ensure secure, reliable system functionality and compliance with security standards
Benefits
- Medical, dental, and vision insurance
- Three weeks of vacation for newly hired employees
- Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
- Tuition reimbursement program
- Student Loan Repayment Program
- Life insurance and disability coverage
- Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
- Birth, adoption, parental leave benefits
- Carrot Health, fertility, and family planning
- Adoption Assistance
- Autism Benefit
- Employee Assistance Plan, including up to 10 free counseling sessions
- Healthy You Incentives, wellness rewards program
- Doctor on Demand, virtual doctor visits
- Bright Horizons, child and elder care services
- Teladoc Medical Experts, second opinion program
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What This Job Offers
Job Type
Full-time
Career Level
Senior
