Information System Security Officer (ISSO) / Endpoint Security System (ESS)

Clearance Level
Top Secret/SCI
Information Security
Wiesbaden, Germany
Onsite Workplace
Key Skills For Success

Information Security

Information System Security

Security System

REQ#: RQ175642
Requisition Type: Regular
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

GDIT is seeking an individual that can perform as the Information System Security Officer (ISSO) with secondary duties in supporting the Endpoint Security System (ESS) analyst for the USAREUR-AF G6 MND Mission Partner Network (MPN) system. The individual will be responsible for all aspects of an organization's information security system, which is enforcing cybersecurity compliance for MPN account creation process, which is reviewing documentation for general and privileged user, as well as supporting endpoint security for systems within our MPN enterprise.

Other duties include performing security authorization activities in compliance with Risk Management Framework (RMF) using Army eMASS, developing Plans of Actions and Milestones (POA&M). Assist ISSMs/ISSOs in maintaining operational security posture to ensure information systems (IS), security policies, standards, and procedures are established and followed.     


  • Support in general and privileged account process.

  • Ensuring information system security requirement are addressed during all phases of information systems lifecycle.

  • Support the A&A team in obtaining documentation for an ATO and ATC.

  • Triage cybersecurity incident response from initial to end and understanding CJCSM 6510.01B

  • Review and update policies based on industry standards and best practices.

  • Support CCRIs, Assessments, etc., improve risk ratings, and develop strategic plans for overall assessment procedures, policies, etc.

  • Support the endpoint security infrastructure sustainment, maintenance, and advanced configuration (policy management, database administration, and security management tools).

  • Support the incident response efforts including, but not limited to, investigation, artifact collection, escalation, containment, recovery, root-cause analysis, and drafting of incident reports.

  • Support the reporting, documentation, and investigation of all security-related incidents, and the development and implementation of corrective measures.

  • Support assessments of threats and vulnerabilities; determine deviations from acceptable configurations, enterprise, or local policy; assess the level of risk; and develop and/or recommend appropriate mitigation countermeasures in operational and nonoperational situations.

  • Support the establishment and mature security hardening standards and advocate for changes in policies that support organizational cyber security initiatives, enhancements, and drive process improvement efforts.


  • Security Clearance Required: TS/SCI

  • Education: BA/BS

  • Experience Required: 5+ years experience

  • Required Skills and Experience: Experience implementing CNSSI 1253 controls to maintain system RMF compliance; Experience interpreting and implementing STIGs to ensure system Cyber compliance;  Understanding MPE governance (e.g., CJCSI 6290.01, DoDI 8110.01, etc.), and knowledge of the NATO Federated Mission Network (FMN) Spirals; Experience utilizing Trellix Endpoint Security products; Understanding Elastic dashboards, complex queries, event correlation, data enrichment, generation of alerts, and support the MND CTI analyst in threat hunting activities.

  • Certifications: Candidate must meet DoD 8570 IAM Level III certification requirements on day 1. Candidate must obtain ITIL Foundation certification within 90 days of hire

  • Candidate must be able to meet German TESA requirements.

German TESA requirements:

  • A bachelors degree plus 3 years of recent specialized experience, OR;

  • An associates degree plus 7 years of recent specialized experience, OR;

  • A major certification plus 7 years of recent specialized experience, OR;

  • 11 years of recent specialized experience.


  • 401K with company match

  • Comprehensive health and wellness packages

  • Internal mobility team dedicated to helping you own your career

  • Professional growth opportunities including paid education and certifications

  • Cutting-edge technology you can learn from.

  • Rest and recharge with paid vacation and holidays

Work Requirements
Years of Experience

5 + years of related experience

* may vary based on technical training, certification(s), or degree


CompTIA Network + - SEC+

Travel Required

Less than 10%


U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $88,275 - $115,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
View information about benefits and our total rewards program.

About Our Work

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.