Senior Cybersecurity Engineer - DoD Joint Operations

CACI International Inc.; Alexandria (VA); On-site; USD 121,000 - 266,000; Full time

Job summary

CACI International Inc. is seeking a senior Cybersecurity Engineer to support JIATF-401, leading architecture, risk management, and authorization activities across enterprise, cloud, and vendor environments.

The role requires direct RMF/ATO experience and active CISSP, with responsibility for advising DoW and interagency stakeholders. You will engage with senior leaders and program offices, translating mission needs into secure designs, guiding testing, and coordinating with vendors to ensure

Qualifications

• Master’s degree in cybersecurity, information assurance, engineering, computer science, or a related field.
• Senior-level cybersecurity engineering or security architecture experience.
• Direct RMF/ATO experience for DoW information systems.
• Experience with cloud, hybrid, and networked environments.

Responsibilities

• Serve as the senior cybersecurity engineering subject matter expert across enterprise, operational, cloud, and vendor-supported environments.
• Lead cybersecurity architecture, system design, integration, testing, and risk-informed decisions.
• Advise on network architecture, cloud security, boundary protection, and interoperability.
• Assess cybersecurity risks and recommend practical mitigations aligned to mission needs.
• Coordinate with PMOs, mission owners, and vendors to resolve authorization and interoperability issues.
• Provide expert consultation on cloud adoption, cross-domain interfaces, and defense industrial base partnerships.

Skills

Cybersecurity engineering

Security architecture

RMF/ATO experience

Cloud security

Vendor coordination

Stakeholder communication

CISSP

Education

Master’s degree in cybersecurity

Job description

CACI International Inc. is seeking a senior Cybersecurity Engineer to support JIATF-401, leading architecture, risk management, and authorization activities across enterprise, cloud, and vendor environments.

The role requires direct RMF/ATO experience and active CISSP, with responsibility for advising DoW and interagency stakeholders. You will engage with senior leaders and program offices, translating mission needs into secure designs, guiding testing, and coordinating with vendors to ensure