Cybersecurity Engineer II

Cybersecurity Engineer II Tysons, VA TS/SCI with polygraph Overview: We are seeking a highly skilled and mission-focused Sr. Cybersecurity Engineer II to lead the design and development of secure, scalable identity and access management solutions in a classified cloud environment. In this role, you will build reusable frameworks and services that enable Zero Trust authentication and fine-grained authorization across enterprise systems. You will collaborate with engineering teams to integrate security into every layer of the stack, drive adoption of modern access control models, and ensure compliance with evolving security standards. Your expertise in secure software development, cloud-native architectures, and identity protocols will be critical to protecting mission-critical systems and enabling secure innovation at scale. Company Benefits: Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: a 401(K) plan with a company match, tuition and training assistance, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources. What you'll do:

• Design, develop, and maintain reusable frameworks, libraries, APIs, and reference implementations for zero trust authentication and authorization.
• Create developer guides, documentation, and best practices to enable smooth integration with security services.
• Implement and support fine-grained authorization patterns (entitlements, row-level security, ABAC).
• Collaborate with architects and engineers to ensure security services meet performance, usability, and compliance requirements.
• Conduct code reviews and provide guidance to development teams on secure coding and integration practices.
• Research emerging zero trust and identity/access management technologies to recommend improvements.

What you'll need to succeed:

• Minimum 7 years professional experience in software engineering, security engineering, or related roles.
• Bachelors degree OR experience may used in lieu of degree.
• Active TS/SCI + CI Poly clearance.
• Experience designing, developing, and deploying application components leveraging AWS cloud services in IL6+ classified environments.
• Proven experience implementing authentication and authorization frameworks (e.g., OAuth 2.0, OIDC, SAML).
• Hands-on expertise with fine-grained access control models (entitlements, row-level security, ABAC).
• Strong proficiency in at least one programming language (e.g., Java, Go, Python) for building frameworks and libraries.
• Solid experience with zero trust architecture and principles.
• Experience creating developer documentation and integration guides.
• Strong grasp of secure coding practices and software development lifecycle (SDLC) security.

Cybersecurity Engineer II Tysons, VA TS/SCI with polygraph Overview: We are seeking a highly skilled and mission-focused Sr. Cybersecurity Engineer II to lead the design and development of secure, scalable identity and access management solutions in a classified cloud environment. In this role, you will build reusable frameworks and services that enable Zero Trust authentication and fine-grained authorization across enterprise systems. You will collaborate with engineering teams to integrate security into every layer of the stack, drive adoption of modern access control models, and ensure compliance with evolving security standards. Your expertise in secure software development, cloud-native architectures, and identity protocols will be critical to protecting mission-critical systems and enabling secure innovation at scale. Company Benefits: Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: a 401(K) plan with a company match, tuition and training assistance, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources. What you'll do:

• Design, develop, and maintain reusable frameworks, libraries, APIs, and reference implementations for zero trust authentication and authorization.
• Create developer guides, documentation, and best practices to enable smooth integration with security services.
• Implement and support fine-grained authorization patterns (entitlements, row-level security, ABAC).
• Collaborate with architects and engineers to ensure security services meet performance, usability, and compliance requirements.
• Conduct code reviews and provide guidance to development teams on secure coding and integration practices.
• Research emerging zero trust and identity/access management technologies to recommend improvements.

What you'll need to succeed:

• Minimum 7 years professional experience in software engineering, security engineering, or related roles.
• Bachelors degree OR experience may used in lieu of degree.
• Active TS/SCI + CI Poly clearance.
• Experience designing, developing, and deploying application components leveraging AWS cloud services in IL6+ classified environments.
• Proven experience implementing authentication and authorization frameworks (e.g., OAuth 2.0, OIDC, SAML).
• Hands-on expertise with fine-grained access control models (entitlements, row-level security, ABAC).
• Strong proficiency in at least one programming language (e.g., Java, Go, Python) for building frameworks and libraries.
• Solid experience with zero trust architecture and principles.
• Experience creating developer documentation and integration guides.
• Strong grasp of secure coding practices and software development lifecycle (SDLC) security.