Systems Security Engineer III

Sierra Nevada Corporation•Dayton, OH

About The Position

The Systems Security Engineer III will drive security across development and operational environments for SNC’s Survivable Airborne Operations Center (SAOC) mission. The role works closely with engineering, operations, and security teams to build security into every stage of the software lifecycle and advance DevSecOps practices. This includes finding vulnerabilities through static code analysis and fuzzing, improving secure software delivery through CI/CD automation, and leading initiatives that strengthen system security and resilience. The position involves designing secure automation solutions, enhancing CI/CD pipelines, improving infrastructure security and vulnerability management, and addressing risks across systems, applications, and cloud environments. The engineer also supports incident response, researches emerging threats and technologies, and provides technical leadership and mentorship. The work offers an opportunity to use modern cloud and automation technologies and influence security strategy.

Requirements

Bachelor’s degree in Systems Security, Network Engineering, Information Technology, or a related engineering discipline; relevant experience may substitute for the required education.
At least 5 years of experience in IT security or a related field. In the absence of a degree, at least 9 years of related experience is required; a higher-level relevant degree may substitute for experience.
Advanced understanding of cybersecurity principles and practices.
Experience with security frameworks and standards such as NIST and ISO 27001.
Proven work experience as a DevSecOps Engineer or in a similar role spanning development, operations, and security.
Knowledge of cloud technologies and architectures, including Azure or AWS.
Experience with secure coding practices and automating security testing tools.
Proficiency with containerization technologies such as Docker and orchestration tools such as Kubernetes.
Experience with automation scripts and configuration management tools.
Excellent communication skills and ability to explain complex security topics in an understandable manner.
Must have current Secret U.S. Security Clearance.
Ability to obtain and maintain a Top Secret U.S. Security Clearance is required.
U.S. citizenship is required for the active U.S. Security Clearance needed for employment.

Nice To Haves

Information Systems Security Engineer Professional (ISSEP), Certified Authorization Professional (CAP), or Certified Information Security Manager (CISM) certification.
Security+, Certified Information Systems Auditor (CISA), or CompTIA Advanced Security Practitioner (CASP+) certification.
Certified Information Systems Security Professional (CISSP) certification.
Microsoft Certified Solutions Expert (MCSE) or Linux experience.
Experience in the aerospace or defense industry.

Responsibilities

Design and implement secure automation solutions across development, test, and production environments.
Lead the development and enhancement of secure CI/CD pipelines that enable reliable software delivery.
Drive improvements in infrastructure security, monitoring, and vulnerability management capabilities.
Identify, assess, and remediate security risks across systems, applications, and cloud environments.
Partner with engineering, operations, and security teams to embed security throughout the development lifecycle.
Support incident response activities through investigation, analysis, and containment efforts.
Research emerging threats and technologies to continuously strengthen security capabilities and practices.
Provide technical leadership, mentorship, and strategic guidance on security and scalability initiatives.