Senior Information Systems Security Engineer (ISSE)
Huntsville, United States | Posted on 08/29/2025
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Job Information
Industry
IT Services
Date Opened
08/29/2025
Job Type
Full time
Work Experience
10+ years
City
Huntsville
State/Province
Alabama
Country
United States
Zip/Postal Code
35895
About Us
FULL VISIBILITY IS A CERTIFIED VIRGINIA BASED SMALL BUSINESS INFORMATION TECHNOLOGY SOLUTIONS PROVIDER SPECIALIZED IN DELIVERING SAFE AND SECURE SOLUTIONS FOR FEDERAL GOVERNMENT AGENCIES.
Full Visibility was established by technology industry veterans with extensive client and consulting backgrounds. The Full Visibility team is unique in recognizing that the level of transparency the client receives often leads to extraordinarily successful engagements. Our focus is on delivering quality solutions that exceed project specifications, and which provide our clients with full visibility into their businesses.
Job Description
Senior Information Systems Security Engineer - Huntsville, AL
Full Visibility is seeking a Senior Information Systems Security Engineer to work in Huntsville, AL.
Candidate must possess an active Top Secret/SCI clearance.
The Senior Information Systems Security Engineer (ISSE) will provide mission critical support to the ongoing development, operations and maintenance of several networked systems supporting digital forensic investigations running primarily on Windows and utilizing virtual and cloud environments. The ideal candidate should have demonstrated career experience as an ISSO or ISSE and familiar with the Federal Authorization-
to-Operate (ATO) process. The Senior ISSE must be a self-starter with strong work habits, ability to complete tasks independently while working also working collaboratively as part of a team.
Responsibilities:
● Provide senior-level information security expertise in architecture, design, and system integration.
● Proven experience with the Risk Management Framework (RMF), the Federal ATO process, and hands-on expertise in information assurance (IA) tools and compliance standards.
● Prepare and maintain security documentation (CMP, IRP, ISCP, POA&M) to ensure compliance with customer and federal policies.
● Develop and maintain Security Assessment and Authorization (SAA) packages to obtain/maintain system ATO/ATT approvals.
● Identify, track, and remediate IA vulnerabilities, coordinating fixes with infrastructure and development teams.
● Conduct and review vulnerability and compliance scans (e.g., Tenable.io, Nessus Pro, NMap, SCAP, DISA STIGs).
● Represent program security interests in customer and community meetings, review all changes for security impact and communicate with management on updates.
● Coordinate responses to security incidents with the relevant stakeholders.
● Collaborate with other ISSOs to ensure interconnection agreements, policies, and procedures are properly documented and maintained.
● Communicate requirements clearly in both written and verbal form, ensuring accurate reporting and documentation.
● Assess evolving threats and recommend improvements to maintain compliance and resiliency.
● Ability to discern the program policies and procedures, identify areas that need work and bring up to management for resolution
FV REQ #4002303
Requirements
Job Requirements:
● Active Top Secret/SCI Eligible Clearance and willingness to sit for CI polygraph
● At least ten (10+) years of experience in information assurance or security
● Experience assessing and documenting results for systems, infrastructures, and applications (on-premises and cloud
● Robust knowledge of NIST SP 800-53 security controls and SP 800-171; and DISA STIGs
● Experience with the full Risk Management Framework (RMF) processes
● Experience with security documentation, such as Contingency Management Plan (CMP), Incident Response Plan (IRP), Information System Contingency Plan (ISCP), Plan of Action and Milestones (POA&Ms)
● Experience with Authorization-to-Operate (ATO), Security Assessment and Authorization (SAA) packages
● Experience conducting and addressing and vulnerability and compliance scans using tools such as, Tenable.io, Nessus Pro, NMap, SCAP
● Experience working on an Agile team, ability to learn Lean principles
● Bachelor's Degree in Computer Security or related field of study; or in lieu of education, an additional five (5) years of relevant experience that addresses all requirements of the position.
● Certifications: (ISC)2 Information Security Certification(s) (e.g., CISSP, CAP, etc.)
Preferred:
● Understanding or experience of TACLANEs
Benefits
About Full Visibility
Our technologists are recognized as industry leaders with demonstrated expertise in innovating and transforming our client environments in support of national security and law enforcement. Headquartered in Tysons, VA - with locations in Chantilly, VA, Quantico, VA, and Huntsville, AL - we have specialized experience supporting sensitive missions and an understanding of the niche skillsets required to overcome challenges in these environments. Our clients benefit from an enthusiastic and reliable team of talent with high employee morale and retention based on our FULL EMPLOYEE approach where each employee's professional and personal well-being is considered. Our focus on employee development, success, and morale is demonstrated by our consecutive top ranking as the Best Place to Work by the Washington Business Journal as a thirteen-time honoree. Full Visibility has also been included on the Inc. 5000 Fastest-Growing Private Companies in America list nine times since 2014.
Full Visibility currently has over 20 active contracts with 100 billable staff supporting 21 clients in the Intelligence and Law Enforcement communities. As part of our commitment to partnerships, we are teammates with 13 prime contract holders. Additionally, Full Visibility holds contracts on several vehicles, such as GSA Multiple Award Schedule (MAS), DISA SETI, DIA SITE III, HCaTS, as well as several classified vehicles. Our portfolio includes experience serving the Department of Defense, Department of Homeland Security, Department of Justice, and Department of Veterans Affairs, as well as commercial clients.
Contact [email protected] for any questions or concerns related to this position or our company.
To review our company benefit offerings please visit https://www.fullvisibility.com/benefits.