Senior Information Systems Security Engineer (ISSE)

ECS; Washington (District of Columbia); On-site; USD 106,000 - 131,000; Full time

Job summary

ECS Federal LLC is seeking a TS-cleared Senior Information Systems Security Engineer (ISSE) to support a mission-critical Department of Justice program in Washington, DC. The position is contingent upon contract award with a salary range of $106,000 to $131,000.

The role focuses on OCIO FISMA audit readiness and compliance reviews, identifying gaps, organizing evidence, and driving corrective-action closure.

Qualifications

• Active Top Secret clearance is required.
• U.S. citizenship is required.
• 8+ years of security engineering, design, and testing experience.
• Master's Degree or relevant certifications in security disciplines (see list).

Responsibilities

• Leads security engineering and assessment support for complex FBI systems.
• Guides categorization, control implementation, secure architecture, SSP content, data flows, remediation strategies, assessment readiness, and continuous monitoring.
• Provides technical thought leadership, mentoring, and process improvement to strengthen quality and team performance.

Skills

Top Secret clearance

US citizenship

8+ years experience

Security architecture (DOD 8140)

Master's degree or certifications

Security testing

FBI/DOJ RMF/SAA

Education

Master's Degree in CS / Cybersecurity / IT

Certifications: CCNP Enterprise, CISM, CISSP-ISSAP/ISSEP, GCIA, GDSA, GICSP, CCISO, CISA, CySA+, GSLC, GSNA

Tools

XACTA/JCAM

Job description

Job Description

ECS is seeking a TS-cleared Senior Information Systems Security Engineer (ISSE) to support one of our mission critical programs for the Department of Justice in Washington DC. Please Note: This position is contingent upon contract award. Salary Range: $106,000 - $131,000. We offer the chance to support the world’s finest law enforcement organization and help the people that keep us safe. In this job you will support OCIO FISMA audit readiness and compliance reviews by identifying gaps, organizing evidence, and driving corrective-action closure.

Responsibilities

• Leads security engineering and/or assessment support for complex FBI systems.
• Guides categorization, control implementation, secure architecture, SSP technical content, data flows, remediation strategies, assessment readiness, and continuous monitoring.
• Provides technical thought leadership, mentoring, and process improvement to strengthen quality, scalability, and team performance.

Required Skills

• US citizenship with active Top Secret clearance
• 8 Years of experience
• Advanced proficiency aligned to Security Architect (652/612) of DOD 8140 requirements:
• Master's Degree in one of the following disciplines (Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, or Software Engineering)
• OR One of the following Certifications (CCNP Enterprise, CISM, CISSP-ISSAP, CISSP-ISSEP, GCIA, GDSA, GICSP, CCISO, CISA, CySA+, GSLC, GSNA)
• 8 years in secure design, analysis and test
• 8 years applying security safeguards, methods, and standards
• 8 years creating or updating security test plans
• Must meet applicable FBI security, clearance, training, background, facility-access, and polygraph requirements

Desired Skills

• Cloud certification/experience
• FBI/DOJ RMF/SAA
• advanced JCAM/Xacta
• technical team leadership
• complex control-gap remediation
• secure data-flow design
• FISMA/audit support

ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

Everforth ECS is the federal segment of Everforth, a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.

Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.

We Value

• Attracting and developing top talent and high-performing teams
• Fostering a culture that is engaging, accountable, and mission-driven

Meet the challenge. Make a difference with Everforth ECS!