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Cybersecurity Engineer III (AppSec)

Sierra Nevada Company, LLC

Lone Tree, CO · HybridFull-time$131–180K/yrSeen todaySeen in employer's feed today

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At a glance

Compensation
$131–180K/yr
Location
Lone Tree, COHybrid
Schedule
Full-time
Work Authorization
US work authorization required

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

Security clearance, required

Job overview

The Cybersecurity Engineer III (AppSec) leads application security efforts, including vulnerability analysis, secure design reviews, and security integration into CI/CD workflows. The role partners with development and DevOps teams, advises on AI-augmented application security, and supports secure innovation. Candidates need a relevant bachelor’s degree or qualifying experience, substantial cybersecurity and application security experience, and the ability to obtain and maintain a Secret U.S. Security Clearance.

Skills & qualifications

RequiredNice to have

Skills

Cybersecurity Principles, requiredSecure Software Design, requiredSystem Development Lifecycle, requiredIdentity and Access Management, requiredSecrets Management, requiredIntegration Security, requiredEncryption, requiredData Handling, requiredAudit Logging, requiredSecurity Monitoring, requiredSupply Chain Security, requiredCI/CD Workflows, requiredSource Code Analysis, requiredRisk Assessment, requiredSecure Coding, requiredDevSecOps, requiredCommunication, requiredCollaboration, requiredNIST SP 800-171, requiredNIST SP 800-218, requiredOWASP Standards, requiredSecurity Assessment Tools, requiredNetwork Administration, requiredOperating Systems, requiredApplication Administration, requiredData Security Administration, requiredMicrosoft Platforms, requiredDomain Structures, requiredUser Authentication, requiredDigital Signatures, requiredSonarqube, nice to haveSemgrep, nice to haveTrivy, nice to haveJFrog Xray, nice to haveJFrog Artifactory, nice to haveGitHub Actions, nice to haveTerraform, nice to haveAnsible, nice to haveC++, nice to havePython, nice to have

Qualifications

Bachelor's in Cybersecurity, Network Engineering, IT or Related Engineering, required5+ Years Related Experience, requiredBachelor's or 9+ Years Related Experience, required3+ Years Application Security or DevSecOps, requiredSecret U.S. Security Clearance, requiredU.S. Citizenship, requiredPolicy as Code Experience, nice to haveInfrastructure as Code, nice to haveCloud Native Application Technologies, nice to haveKubernetes, nice to haveDocker, nice to haveAPI Management, nice to have

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
401(k) Match
Paid Time Off
Tuition Assistance

Full job description

Hybrid or in office

Lone Tree, CO

Arlington, VA

Sparks, NV

Full time

R0031396

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

Qualifications You Must Have:

  • 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.

Estimated Starting Salary Range: $131,010.00 - $180,138.75. Compensation varies depending on a wide array of factors, such as candidates' key skills, relevant work experience, and education/training/certifications. The disclosed range estimate may be adjusted for any applicable geographic differential associated with the location at which the position may be filled.

SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more (https://www.sncorp.com/careers/total-rewards/) .

IMPORTANT NOTICE:

This position requires the ability to obtain and maintain a Secret U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Learn more about the background check process for Security Clearances. (https://www.dcsa.mil/About/)

SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law.

SNC is a trusted global leader in aerospace and national security. Our innovative solutions enable connected protection through command, control and communications systems, as well as ISR, cyber, electromagnetic spectrum management, and other high capabilities for systems across all domains – sea, land, air, space and cyber.

As a longstanding leader in defense technology, SNC is the optimum intersection of commercial, defense and non-traditional contractors. We are one of the only privately owned mid-tier A&D contractors and we pride ourselves on our ability to invest early and often to ensure mission success on or ahead of schedule. It’s part of our mission to always stay one step ahead; working on solutions today to solve the problems of tomorrow.

Founded in 1963, SNC is owned by Chairwoman Eren Ozmen and CEO Fatih Ozmen.

How this job compares

Set against the 1,895 open Cybersecurity Engineer jobs on Olive Jobs, counted November 12, 2026.

Pay
  • This posting$131–180K/yr
  • Colorado median$116–193K/yr111 salary ranges
  • US median$119–198K/yr1,559 salary ranges

This range's midpoint, $156K, is 9% above the Colorado median midpoint ($142K) — in the middle half of Cybersecurity Engineer salary ranges in Colorado.

Openings
Olive Jobs lists 130 open Cybersecurity Engineer jobs in Colorado and 1,895 across the US. 3% of them nationwide are listed as remote or flexible.
Hiring the most in Colorado
Experience
This posting asks for at least 5 years of experience; Cybersecurity Engineer postings that state a minimum ask for 5 years at the median (1,722 postings).
Education
548 of the 1,895 open Cybersecurity Engineer jobs (29%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 12, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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