Alpha Omega
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Description Job Title: Senior Security Specialist – ISSO
Clearance Required: US Citizen; Public Trust
Work Location: Onsite at the Department of Treasury; 1500 Penn Ave, Washington, DC.
Alpha Omega is seeking a qualified Senior Information System Security Officer (ISSO) to join our team to support one of our government customers. The primary responsibilities for the position are to support all activities that ensure the level of security documented with the security authorization is maintained at an acceptable level of risk. The nature of the work requires that the candidate demonstrates initiative, organization, responsibility, customer service skills, and the ability to be flexible and adaptive to a fast‑paced, fluid business environment. The candidate must be able to communicate effectively and decisively with all levels of the organization, collaborate within and across teams and be able to solve practical problems as well as exercise sound judgement with regards to sensitive and confidential information.
Key Responsibilities
Provide subject matter expertise to ensure compliance with Treasury, DHS, and NIST cybersecurity policies and frameworks.
Support the implementation and sustainment of security controls in alignment with the NIST Risk Management Framework (RMF).
Responsibility for and to assist system owners in maintaining system Authorization to Operate (ATO) status.
Enhance Treasury’s ability to measure, report, and manage cybersecurity posture and control effectiveness at a maturity level consistent with OIG FISMA Metrics Level 4 (“Managed and Measurable”).
Strengthen collaboration and information sharing across internal Treasury offices and external partners to support cybersecurity risk reduction and resilience.
Create and maintain documents like SSPs, POA&Ms, SARs, and other continuous monitoring reports/artifacts.
Experience & Skills
5+ years of experience as ISSO.
Highly responsive to customer needs.
Preferred Qualifications
Experience supporting systems hosted in Cloud environments.
Experience supporting systems in Agile and DevOps environments.
Certifications (Must Have One Certification)
CISSP
CASP
CISA
CEH
CISM
Salary And Benefit Information The likely salary range for this position is $86,000 - $120,000.
Application Deadline January 10, 2026.
Benefits
PTO including paid parental, military, and bereavement leave
Eleven (11) paid Federal holidays, five of which are floating holidays
Health and Dental Insurance (including 100% employer paid premiums for employee coverage under the HDHP health plan)
Life Insurance, STD/LTD term disability coverage, with employer paid premiums
401(k) plan with a match that is 100% vested after you complete two years of service
FSA/DFSA/HSA flexible benefit plans
Annual Tuition & Professional Development Reimbursement benefit
Culture And Values Guided by our core values—Harmony, Engagement, Accountability, Resourcefulness, and Tenacity (HEART)— we foster a culture of innovation, collaboration, and continuous learning and are committed to delivering high‑impact solutions.
Our Company Alpha Omega is an award‑winning Federal IT solutions provider dedicated to delivering mission‑enabling technology and strategic solutions across the National Security, Federal Financial, Healthcare, and Space & Science domains.
Seniority level Mid‑Senior level
Employment type Full‑time
Job function Other, Information Technology, and Management
Alpha Omega Integration, LLC (Alpha Omega) is an Equal Opportunity 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.
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Get AI-powered advice on this job and more exclusive features.
Description Job Title: Senior Security Specialist – ISSO
Clearance Required: US Citizen; Public Trust
Work Location: Onsite at the Department of Treasury; 1500 Penn Ave, Washington, DC.
Alpha Omega is seeking a qualified Senior Information System Security Officer (ISSO) to join our team to support one of our government customers. The primary responsibilities for the position are to support all activities that ensure the level of security documented with the security authorization is maintained at an acceptable level of risk. The nature of the work requires that the candidate demonstrates initiative, organization, responsibility, customer service skills, and the ability to be flexible and adaptive to a fast‑paced, fluid business environment. The candidate must be able to communicate effectively and decisively with all levels of the organization, collaborate within and across teams and be able to solve practical problems as well as exercise sound judgement with regards to sensitive and confidential information.
Key Responsibilities
Provide subject matter expertise to ensure compliance with Treasury, DHS, and NIST cybersecurity policies and frameworks.
Support the implementation and sustainment of security controls in alignment with the NIST Risk Management Framework (RMF).
Responsibility for and to assist system owners in maintaining system Authorization to Operate (ATO) status.
Enhance Treasury’s ability to measure, report, and manage cybersecurity posture and control effectiveness at a maturity level consistent with OIG FISMA Metrics Level 4 (“Managed and Measurable”).
Strengthen collaboration and information sharing across internal Treasury offices and external partners to support cybersecurity risk reduction and resilience.
Create and maintain documents like SSPs, POA&Ms, SARs, and other continuous monitoring reports/artifacts.
Experience & Skills
5+ years of experience as ISSO.
Highly responsive to customer needs.
Preferred Qualifications
Experience supporting systems hosted in Cloud environments.
Experience supporting systems in Agile and DevOps environments.
Certifications (Must Have One Certification)
CISSP
CASP
CISA
CEH
CISM
Salary And Benefit Information The likely salary range for this position is $86,000 - $120,000.
Application Deadline January 10, 2026.
Benefits
PTO including paid parental, military, and bereavement leave
Eleven (11) paid Federal holidays, five of which are floating holidays
Health and Dental Insurance (including 100% employer paid premiums for employee coverage under the HDHP health plan)
Life Insurance, STD/LTD term disability coverage, with employer paid premiums
401(k) plan with a match that is 100% vested after you complete two years of service
FSA/DFSA/HSA flexible benefit plans
Annual Tuition & Professional Development Reimbursement benefit
Culture And Values Guided by our core values—Harmony, Engagement, Accountability, Resourcefulness, and Tenacity (HEART)— we foster a culture of innovation, collaboration, and continuous learning and are committed to delivering high‑impact solutions.
Our Company Alpha Omega is an award‑winning Federal IT solutions provider dedicated to delivering mission‑enabling technology and strategic solutions across the National Security, Federal Financial, Healthcare, and Space & Science domains.
Seniority level Mid‑Senior level
Employment type Full‑time
Job function Other, Information Technology, and Management
Alpha Omega Integration, LLC (Alpha Omega) is an Equal Opportunity 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.
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