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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Cybersecurity Engineer III (AppSec) - **Company:** Sierra Nevada Corporation. - **Location:** Lone Tree, CO, United States - **Experience:** Experienced - **Salary:** $131,010 - $180,139 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Artificial Intelligence, Audit Trail, User Authentication, Microsoft Online Services, C++ (Programming Language), Cloud Engineering, Code Review, Cyber Security, System Configuration, Continuous Integration, Data Security, DevOps, Digital Signature, Github, Identity and Access Management, Internet Security, Python (Programming Language), Key Management, Open Web Application Security, Systems Development Life Cycle, Ansible, Secure Coding, Security Information and Event Management, SonarQube, Tripwire, Policy as Code, Data Processing, Software Security, Kubernetes, Information Technology, Terraform, Devsecops, Api Management, Docker, Static Application Security Testing, Artifactory, Programming Languages, Dynamic Application Security Testing - **Published:** November 12, 2026 - **Apply:** https://snc.wd1.myworkdayjobs.com/SNC_External_Career_Site/job/Lone-Tree-CO/Cybersecurity-Engineer-III--AppSec-_R0031396 ## About the Role * Bachelor's degree in Cybersecurity, Network Engineering, Information Technology or related Engineering field of study * 5+ years of experience in a related role * Relevant experience can be considered as a substitute for the required educational qualifications. In the absence of a degree, a minimum of 9 years of related experience is required * Higher level relevant degree may substitute for experience. * 3+ years of experience focused on application security or DevOps/DevSecOps * Strong understanding of core cybersecurity principles as they relate to secure software design and the system development lifecycle including: identity and access management, secrets management, integration security, encryption and data handling, audit logging and monitoring, and supply chain security * Demonstrated experience supporting the system development lifecycle including planning, requirements, design, implementation, testing, deployment, and maintenance * Hands-on experience configuring and integrating security tools and requirements into CI/CD workflows. * Hands-on experience analyzing source code and security tool outputs, evaluating exploitability and risk levels, and triaging findings appropriately * Strong understanding of secure coding practices and DevSecOps principles * Demonstrated ability to successfully communicate and collaborate with development teams as a trusted security partner * Working knowledge of NIST SP 800-171, NIST SP 800-218, and OWASP standards * Proven experience with security monitoring and assessment tools * Experience supporting, troubleshooting, and administering a variety of networks, Operating Systems (OSs), and applications * Advanced knowledge of data security administration principles, methods, and techniques * Strong knowledge and experience administering a variety of current Microsoft platforms * In-depth understanding of domain structures, user authentication, and digital signatures * The ability to obtain and maintain a Secret U.S. Security Clearance is required Qualifications We Prefer: * Experience with the following technologies: Sonarqube, Semgrep, Trivy, JFrog Xray, JFrog Artifactory, GitHub Actions, Terraform, Ansible * Proficiency in one or more programming languages such as C++, Python, or JavaScript * Demonstrated experience designing and implementing Policy as Code * Understanding of Infrastructure as Code and cloud native application technologies including Kubernetes, Docker, and API management * Understanding of AI system security principles * Demonstrated experience securing applications with AI components Essential Functions: * Ability to work in an office or hybrid environment. * Prolonged periods sitting at a desk and working on a computer. * Ability to lift up to 20 pounds occasionally. * Ability to travel as needed. This posting will be open for application for a minimum of 5 days and may be extended based on business needs. ## Description Are you known for your attention to detail, are highly organized, and pride yourself on technical acumen? The Cybersecurity Engineer III will lead efforts in designing, testing, and implementing secure operating systems, networks, and security monitoring tools. This senior-level role includes overseeing IT security systems, managing incident responses, conducting in-depth risk assessments, and developing advanced security controls. The Engineer III will also research, recommend, and integrate new security tools and technologies to strengthen the company's security framework. As SNC's corporate team, we provide the company and its business areas with strategic direction and business support spanning executive management, finance and accounting, operations, human resources, legal, IT, information security, facilities, marketing, and communications. Responsibilities: * Application Security Analysis: Perform application security analysis using both automated tooling (SAST, SCA, DAST, etc) and code reviews to assist development teams in understanding, triaging, and treating discovered vulnerabilities * Secure Design Review: Review proposed designs for security control implementations and secure design; work with developers to integrate security considerations into system and application designs * DevSecOps Integration: Work with DevOps engineers to integrate and maintain automated security tooling and gates into CI/CD workflows * Tooling and Pipeline Reviews: Audit security scan tool and workflow security gate configurations for adherence to enterprise security standards; support continuous improvement of tooling workflow design * AI and Emerging Capability Support: Advise and support the business in implementation of AI-augmented Application Security measures and other emerging improvements in the AppSec field * Culture of Security: Serve as a trusted partner and security expert for developers to foster a culture of security within development teams * Collaboration: Collaborate with development teams to support secure innovation while protecting developer velocity and business outcomes