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# Information System Security Engineer (ISSE) Manager

- **Company:** Deloitte T.T.L.
- **Location:** Arlington, VA, United States
- **Salary:** $137,500.0 - $278,300.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Cyber Security, Information Systems, Global Positioning Systems (GPS), Information Security Management, Information Systems Security Architecture Professional, Systems Development Life Cycle, Software Engineering, Systems Architecture, Cloud Platform System, Software Security
- **Published:** October 10, 2026
- **Apply:** https://dejobs.org/x/x/949FE6478FFE4F44B944E2466CE3C156/job/

## About the Role

* Strong technical skills and experience with IT and Operational Technology, both on-premise and in the cloud including FedRAMP
 * Ability to provide security recommendations and to help integrate security early in the systems development life cycle
 * Experience supporting systems through all steps of the Risk Management Framework (RMF) life cycle including developing compliant Assessment and Authorization (A&A) documentation.
 * Ability to work independently and collaborate as part of a team
 * Effective written and verbal communication skills
 * Meticulous attention to detail and quality of work product
 * Ability to build and sustain professional relationships
 * Ability to lead projects or workstreams
 * Ability to manage and prioritize multiple tasks in a fast-paced and dynamic environment
 * Strong interpersonal skills and professional demeanor
 * Ability to meet deadlines
 * Ability to provide clear guidance to others

The Team Deloitte's Government & Public Services (GPS) practice - our people, ideas, technology and outcomes - is designed for impact. Serving federal, state, & local government clients as well as public higher education institutions, our team of professionals brings fresh perspective to help clients anticipate disruption, reimagine the possible, and fulfill their mission promise.

Our Cyber Strategy & Transformation offering develops and transforms cyber programs in line with a client's strategic objectives, regulatory requirements, and risk appetite. It keeps the enterprise a step ahead of the evolving threat landscape and gives stakeholders confidence in the organization's cyber posture. Includes design of the cyber organization, governance, and risk assessments.

The Project Delivery Talent Model is designed for professionals with specialized skills that align to a current client need. Team members focus on delivering services to clients, without additional expectations related to business development or promotion. Their employment is tied to their role on a project, and they are eligible for a benefits package that is competitive for project delivery-focused professionals., * Bachelor's degree

 * Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future
 * Active Top Secret (SCI Eligibility) security clearance required
 * Must be able to work onsite, 5 Days a week, at the client site in Washington, D.C.
 * 12+ Years of Experience with the following:
 * Serving as an Information Systems Security Engineer (ISSE) supporting U.S. Department of Defense (DoD) or Federal Government information systems, including information security engineering; system or application design and architecture; application security; and security architecture.
 * Implementing STIGs for information systems
 * One of the following certifications:
 * Certification in Risk and Information Systems Control (CRISC)
 * Certified Information Systems Security Professional (CISSP) certification
Preferred:

 * Experience supporting operational mission systems
 * Experience applying the National Institute of Standards and Technology (NIST) RMF to security and compliance activities
 * Experience with governance, risk and compliance (GRC) tools such as JCAM and OpenRMF.

## Description

As a Project Information System Security Engineer (ISSE) Manager, Strategy, Growth and Transformation on the Deloitte Cyber Team, you will:

 * Design, build, and integrate security capabilities into information systems, applications, and cloud architectures
 * Lead system architecture and Security Technical Implementation Guide (STIG) compliance
 * Support Authorization to Operate (ATO) activities across IT and Operational Technology systems including development of security documentation and implementation of controls.
 * Develop and maintain security engineering artifacts and compliance evidence to support authorization decisions and ongoing security requirements
 * Assess security maturity, identify architecture and control gaps, and drive remediation actions with stakeholders
 * Collaborate with systems engineers, architects, compliance teams, and client stakeholders to resolve technical security issues and strengthen operational resilience