Sr. Systems Security Engineer (Onsite - Richardson, TX) TS/SCI clearance required

RTX•Richardson, TX

10d•$95,500 - $181,700•Onsite

About The Position

Collins Aerospace, an RTX company, is seeking a Senior Systems Security Engineer to support Cross-Domain Solutions (CDS) and Site-Based Security Assessments (SBSA). The role supports submission of DoD Risk Management Framework (RMF) artifacts for operational Authority to Operate (ATO), factory accreditation, and product deployment. The engineer will apply secure system design, hardening, automation, and compliance practices across Linux-based environments, aligning complex security architectures with Department of Defense and Intelligence Community standards. This is an onsite role in Richardson, Texas, with travel up to 25%. The position involves working in an enclosed classified environment such as a Sensitive Compartmented Information Facility (SCIF). An active, transferable TOP SECRET U.S. government security clearance is required before the start date; U.S. citizenship is required. Relocation assistance is available.

Requirements

University degree and at least 5 years of relevant experience, or an advanced degree in a related field and at least 3 years of experience.
Active and transferable TOP SECRET U.S. government-issued security clearance before the start date.
U.S. citizenship.
Experience in integration, testing, and requirements development.
Experience administering and hardening Linux and Windows systems.
DoD 8140 certification compliant with DoDM 8140.03M, such as CompTIA Security+.
Experience with RMF, Security Technical Implementation Guides (STIGs), and system accreditation deliverables.

Nice To Haves

Networking experience.
Ability to document and understand physical system and network wiring.
Experience with the Atlassian/Jira toolset for task management.
Experience with OpenShift or Kubernetes.
Cybersecurity accreditation experience.
Experience with Ansible.
Experience with NAS/SAN.
Experience with backup and recovery.
Experience using Agile methodologies.
Bachelor’s degree in Engineering, Cybersecurity, Computer Science, or a related field, or equivalent experience.
At least 5 years of experience in systems security engineering or secure systems integration.
Expertise installing, configuring, hardening, and troubleshooting RHEL.
Hands-on experience with Ansible automation and infrastructure-as-code methods.
Experience with Cross-Domain Solutions or similar multi-level security systems.
Experience configuring or troubleshooting SELinux policies.
Familiarity with HBSS or EDR security tools.
Experience scripting with Bash, Python, or similar languages.
Understanding of virtualization and container platforms such as VMware, Docker, or Podman.
Previous experience supporting DoD or Intelligence Community mission environments.
VMware VCSA/vCenter/ESXi host administration, load balancing, and optimization experience.

Responsibilities

Perform system administration and framework duties to ensure proper product operation at the factory and assist with deployed systems as needed.
Support cybersecurity efforts, including artifact development, implementation of security controls and requirements, mitigation tracking, and control validation for system ATO.
Perform systems security engineering for CDS- and SBSA-based systems in accordance with DoD, NIST, and Intelligence Community security requirements.
Design, deploy, configure, and harden Red Hat Enterprise Linux (RHEL) systems within secure architectures.
Develop and maintain Ansible automation artifacts for configuration management, provisioning, and system hardening.
Support RMF accreditation through documentation, security control assessment, evidence generation, and mitigation plans.
Conduct security analyses and vulnerability assessments, and plan remediation across system components.
Conduct Site-Based Security Assessments at customer facilities as part of program support.
Evaluate and monitor COTS and GOTS systems, applications, and services against the current architecture, RMF requirements, and application requirements.
Collaborate with cross-functional engineering teams to apply secure design principles throughout the lifecycle.
Work independently to maintain the system's security posture.
Troubleshoot complex security and system behavior across multi-domain, multi-level security environments.

Benefits

Medical, dental, and vision insurance.
Three weeks of vacation for newly hired employees.
401(k) plan with employer matching and a separate employer retirement contribution, including a Lifetime Income Strategy option.
Tuition reimbursement program.
Student Loan Repayment Program.
Life insurance and disability coverage.
Optional pet, home and auto, additional life and accident, critical illness, group legal, and identity theft protection coverages.
Birth, adoption, and parental leave benefits.
Carrot Health fertility and family-planning benefits.
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.
Flexible spending accounts.
Flexible work schedules.
Paid time off and holidays.
Potential annual short-term and/or long-term incentive compensation, subject to eligibility and program conditions.