Cybersecurity SME

Alpha Omega; Washington (District of Columbia); Hybrid; USD 135,000 - 195,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

401(k) plan

Job summary

Alpha Omega seeks a Senior Cybersecurity Subject Matter Expert (SME) to lead ISSE activities for a federal client, driving RMF lifecycle and security engineering across DoD and DHS requirements. This role requires an active DoD SECRET clearance, U.S.

citizenship, and a strong track record in RMF, vulnerability management, and zero-trust implementations. The position is Hybrid – Washington, DC area (DC & VA) with occasional travel.

Qualifications

• Minimum 8 years of related cybersecurity experience in a technical field.
• Active final SECRET clearance (Tier 3 / SF-86) with ability to maintain eligibility for the duration of the task order; SF-312 required.
• US citizenship and ability to obtain CAC for continued employment.
• Proven expertise and technical leadership in cybersecurity with strong communication skills.

Responsibilities

• Serve as the designated ISSE for client information systems, OT, and hybrid cyber-physical platforms; lead RMF lifecycle from categorization through continuous monitoring.
• Develop, maintain, and manage RMF authorization packages in eMASS (SSPs, SCTMs, POA&Ms, SARs, Contingency Plans, IRPs, risk assessments, network diagrams).
• Perform Security Readiness Reviews; review vulnerability scans, track remediation, manage false positives, and coordinate DISA tickets.
• Maintain continuous monitoring and ensure compliance with DoD/DHS/USCG requirements and DISA STIGs; support cATO, evidence collection, and dashboard integration.
• Conduct Security Impact Assessments for system changes; participate in change control boards, DHS reviews, milestones, CONOPS meetings, and technical exchanges.
• Integrate Zero Trust, RMF controls, and OT/ICS security into system designs; perform security engineering analyses and risk assessments.
• Evaluate emerging threats, TTPs, OT/ICS vulnerabilities, and supply-chain risks; propose safeguards to reduce attack surface.
• Track and report status on orders from JFHQ-DoDIN, USCYBERCOM, and CGCYBER.
• Produce cybersecurity readiness updates, metrics, and executive briefings; respond to data calls.
• Provide senior technical leadership to the ISSE/SME team and submit process improvements to the COR.
• If dual-hatted Task Order PjM: act as COR contact and oversee daily operations, scheduling, and travel logistics.

Skills

Active DoD SECRET clearance

RMF/ISSE leadership

Security partnerships

Education

Bachelor's degree in Computer Science / Cyber Security / IT / Software Engineering / IS/ Computer Engineering

CISSP-ISSAP or CISSP-ISSEP certification

Tools

eMASS

ACAS/Nessus/Security Center

Elastic SIEM

HBSS

Tanium

Splunk

ServiceNow

Burp Suite

Job description

Description

Alpha Omega is seeking a senior Cybersecurity SME to support one of our federal clients. The Cybersecurity SME serves as a senior technical expert and recognized leader in the cybersecurity community, performing Information System Security Engineer (ISSE) services and cybersecurity compliance assessment, management, and reporting for the client information systems and operational technology. The Cybersecurity SME confers with Government management, leads the outline and development of cybersecurity strategies and solutions, resolves complex problems requiring in-depth subject matter knowledge, and advises on the impact of new legislation, mandates, regulations, technologies, and industry best practices relevant to the client.

Job Details

Job Title: Cybersecurity Subject Matter Expert (SME)

Clearance Required: Active DoD SECRET

Work Location: Hybrid – (Washington, DC and Alexandria, VA)

Citizenship: U.S. citizenship required

Key Responsibilities

• Serve as the designated Information System Security Engineer (ISSE) for assigned client information systems, operational technology (OT), and hybrid cyber-physical platforms; lead the full NIST SP 800-37 RMF lifecycle from categorization through continuous monitoring and decommissioning.
• Develop, maintain, and manage RMF authorization packages in eMASS, including SSPs, SCTMs, POA&Ms, Security Assessment Reports, Contingency Plans, Incident Response Plans, risk assessments, hardware/software lists, network topology and boundary diagrams, and data flow diagrams.
• Perform Security Readiness Reviews (SRRs); review and analyze ACAS/Nessus vulnerability scan results; assign, track, and validate remediation through patching cycles or POA&Ms, including false-positive management and DISA ticket coordination.
• Maintain continuous monitoring and ensure ongoing compliance with DoD, DHS, and USCG security requirements and DISA STIGs; support cATO initiatives, automated evidence collection, and dashboard integration.
• Conduct Security Impact Assessments for proposed system changes; participate in change management boards, DHS SELC reviews, acquisition milestones (PMR, PDR, CDR), CONOPS working groups, and technical exchange meetings.
• Integrate Zero Trust principles, RMF controls, and OT/ICS-specific security requirements into system designs; conduct security engineering analyses, trade studies, and architectural risk assessments.
• Evaluate emerging threats, adversary TTPs, OT/ICS vulnerabilities, and supply-chain risks; recommend safeguards and mitigation strategies that reduce cyber-attack surface and enhance resilience.
• Track and report status on authoritative orders (OPORDs, TASKORDs, FRAGOs, ALCOASTs, TCTOs) from JFHQ-DoDIN, USCYBERCOM, and CGCYBER.
• Produce weekly, monthly, and quarterly cybersecurity readiness updates, metrics, executive-level briefings, and risk memorandums for Government leadership; respond to ad hoc cybersecurity data calls.
• Provide senior technical leadership and mentorship to the ISSE/SME team; formulate and submit continuous improvement recommendations to the COR regarding contracted operations.
• If serving as dual-hatted Task Order PjM: act as primary point of contact for the COR; provide day-to-day operational and technical oversight, personnel scheduling, workload prioritization, quality control, and coordination of travel, training, and on/offboarding.

Required Qualifications

Required Experience/Skills:

• Minimum 8 years of related, progressive cybersecurity experience in a technical field related to this labor category.
• Active professional certification (DoD 8140/8570 qualifying): CISSP-ISSAP or CISSP-ISSEP. Certification must be current prior to the start of performance; waivers will not be granted.
• Active final SECRET personnel security clearance (Tier 3 / SF-86 investigation) with the ability to maintain eligibility for the duration of the task order; execution of a Classified Information Non-Disclosure Agreement (SF-312) required.
• S. citizenship; favorably adjudicated background investigation and FBI fingerprint check; ability to obtain and maintain a DoD Common Access Card (CAC) as a condition of continued employment.
• Recognized expertise and technical leadership in the cybersecurity discipline, with exceptional oral and written communication skills and the ability to interface with all levels of Government management.
• Demonstrated experience implementing the RMF, including system categorization, control selection, implementation, assessment, and continuous monitoring.
• Core knowledge of: risk management processes; national and international cybersecurity laws, regulations, policies, and ethics; cybersecurity principles; cyber threats and vulnerabilities; computer networking concepts, protocols, and network security methodologies; and the operational impacts of cybersecurity lapses.

Preferred Qualifications

• Experience with USCG/DoD security tools: eMASS, ACAS/Nessus/Security Center, Elastic SIEM, HBSS, Tanium, Splunk, ServiceNow, and Burp Suite.
• Experience with OT/ICS/SCADA security, shipboard or aviation platform systems, and the DoD “Assess Only” process.
• Familiarity with DHS 4300A, COMDTINST cybersecurity policy, DoDAF artifacts, ITIL/DESMF practices, and DevSecOps pipelines.
• Prior USCG, DHS, or DoD RMF support experience.

Work Environment & Additional Requirements

• Hybrid schedule: routine telework is authorized, but personnel must report on-site (hoteling) for classified (SECRET) work, SIPRNet access, meetings and events requiring presence, training, and personnel on/offboarding
• Work schedules mirror Government staff requirements, performed within a 0600–1800 window including all core hours, Monday through Friday.
• Occasional CONUS travel may be requested (and potentially Alaska, Hawaii, or U.S. Territories), including other DoD facilities, client locations

(Required Or Preferred) Education

• Bachelor's degree in Computer Science, Cyber Security, Information Technology, Software Engineering, Information Systems, Computer Engineering, or other related technical discipline from an accredited institution. (No substitution of experience for the education requirement is permitted)

Salary And Benefit Information

The likely salary range for this position is $135,000 - $195,000. This is not, however, a guarantee of compensation or salary. There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, education and certifications as well as contract provisions regarding labor categories that are specific to the position and could fall outside of this range.

Application Deadline: January 15, 2027

Benefits

• 15 days PTO including paid parental, military, and bereavement leave
• Eleven (11) paid Federal holidays, five of which are floating holidays (as designated by the company’s holiday schedule each year)
• 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.

We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Company

Alpha Omega is an award-winning solutions provider dedicated to delivering mission-enabling technology and strategic solutions for our customers. Since our founding in 2016, we have grown to over 700 employees nationwide consisting of former operators, technologists, and strategists who bring decades of government and industry experience. They are united by one purpose: ensuring our nation’s continued global leadership.

We have a unified operating model providing technical capabilities and solutions for customers across two main business units:

• National Security – supporting agencies such as the Department of Homeland Security (DHS), Navy, Air Force, Army, and the Department of State (DOS).
• National Resilience – supporting agencies such as Federal Deposit Insurance Corporation (FDIC), Treasury, Health & Human Services (HHS), National Institutes of Health (NIH), National Oceanic and Atmospheric Administration (NOAA) and the United States Department of Agriculture (USDA)

Through strategic partnerships, intellectual property, and relentless drive for innovation, Alpha Omega is shaping the future of government technology. We are proud to be a Virginia Best Places to Work 8 times, an Inc. 5000 honoree 7 times, and a Washington Post Top Workplaces 4 times. Join us in driving transformation that secures the nation's future.

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. We recognize and reward hard work.

Alpha Omega's culture is driven by our values and mission. We invest in top talent through mentorship, growth, and meaningful work. We value individuality, reward integrity, and foster a diverse, high-performing team united by purpose-at work, in service, and in the community.

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.