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# Senior Software Operating System Security Engineer

- **Company:** RTX
- **Location:** Woburn, MA, United States
- **Experience:** Expert
- **Salary:** $86,800.0 - $165,200.0
- **Contract:** Contract
- **Skills:** Microsoft Windows, Systems Engineering, Automation of Tests, Bash Shell, Configuration Management, Computer Engineering, System Configuration, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Python (Programming Language), Kernel-Based Virtual Machine, Microsoft Networking, Routing, Red Hat Enterprise Linux, Ansible, Software Engineering, Virtualization Technology, Scripting, Delivery Pipeline, Saltstack, Reliability of Systems, Firewalls (Computer Science), Containerization, Infrastructure Automation Frameworks, Information Technology, CIS Benchmarks, Puppet, Operating System Security, Docker, Vmware
- **Published:** September 16, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9165455/senior-software-operating-system-security-engineer

## About the Role

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date, * Typically requires a bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or related field and 5 years of experience

 * Demonstrated hands-on experience with RHEL administration.
 * Demonstrated background in OS hardening, security baselines, and compliance frameworks (e.g., STIGs, CIS Benchmarks).
 * The ability to obtain and maintain an Interim Secret U.S security clearance is required. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer

 * Proficiency in scripting languages such as Bash, Python, or similar.
 * Experience with Ansible or equivalent IaC/configuration management tools (e.g., Puppet, Chef, SaltStack).
 * Solid understanding of Linux and Windows networking fundamentals (DNS, DHCP, routing, firewalls, services).
 * Ability to approach problems with systems engineering thinking, including structured analysis and clear documentation.
 * Familiarity with virtualization or containerization technologies (KVM, VMware, Docker, Podman) is a plus.
 * Ability to work both independently and collaboratively in a fast-paced engineering environment.
 * Experience in secure enterprise or government environments.
 * Knowledge of CI/CD pipelines and automated testing.
 * Understanding of reliability, maintainability, or other systems engineering specialty areas.
 * Relevant certifications (RHCSA/RHCE, Security+, Network+, etc.).

## Description

* Design, deploy, and maintain RHEL-based systems in production and development environments.
 * Implement OS hardening standards and security controls across Linux systems.
 * Develop and maintain automated configuration workflows using Ansible or other IaC/CM tools.
 * Write and maintain scripts to support system configuration, monitoring, and operational tasks.
 * Apply systems engineering principles to requirements analysis, design documentation, verification, and lifecycle support.
 * Troubleshoot complex issues across Linux/Windows hosts, networks, infrastructure services, and applications.
 * Collaborate with cross-functional engineering teams to ensure system reliability, security, and scalability.
 * Participate in technical reviews, architecture discussions, and design planning.


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