The DoW Healthcare Management System Modernization (DHMSM) Program is looking for an experienced ISSO/ISSE to join our cyber team in support of the continued development, sustainment, and deployment of the Military Health System (MHS) GENESIS system. MHS GENESIS is deployed globally to over 3700 locations at 138 Medical Treatment Facilities (MTFs), serving 190K users, providing 1100+ clinical workflows delivering medical electronic health record (EHR) capabilities for nearly 10M beneficiaries.
WHAT YOU WILL BE DOING
The ISSO supports the Cybersecurity Leads with all Risk Management Framework (RMF) Authorization and Sustainment related functions to include Interim Authorization to Test (IATT), Authority to Operate (ATO), Annual Security Review (ASR), Risk Assessment (RA) and Continuous Monitoring (ConMon) activities for all assigned systems. Responsibilities include, but are not limited to, the following:
Maintaining RMF Authorizations for all assigned ATOs including any required IATT, ATO, ASR, RA and ConMon related activities and assisting team members with unassigned ATOs as required.
Primary cybersecurity review of system architecture and technical artifacts (to include PPSM, diagrams, STIGs, compliance evidence, and policy documentation)
Developing, updating and working with Cybersecurity Leads and LPDH partners to ensure implementation of cybersecurity policies and procedures, and developing any other required cybersecurity related documentation.
Ensuring assigned systems meet requirements to obtain required authorizations and approvals including IATT, ATO, and ASRs from the assigned Authorizing Official (AO)
Understanding all DOW and DHA RMF policies, procedures, and guidance and keeping up with all changes.
Ensuring eMASS record is maintained in accordance with DHMHSM and DHA requirements.
Assisting with the development of templates and recommending other tools to support risk management and ATO activities, as needed.
Working with CyberOps to ensure all assets are scanned properly and that any scan issues are resolved in a timely manner. Tracking all issues.
Developing and Maintaining Plans of Action and Milestones (POA&Ms) and Risk Acceptances for all assigned ATOs and ensuring POA&Ms received from other teams meet all DHA requirements.
Tracking vulnerability remediation statuses and POA&M closures on a weekly basis for metrics reporting.
Periodically evaluating the effectiveness of all Assessment Procedures for RMF security controls to ensure operational security posture is maintained.
Supporting cybersecurity compliance assessment efforts by providing systems engineering and documentation support.
Ensuring all DoW and DHA cybersecurity-related documentation is current and accessible to properly authorized individuals.
Assisting Cybersecurity Leads in ensuring the project meets identified milestones and requirements.
Contributing to the development of cyber strategies and any associated documentation.
Ensure all users have requisite security clearances and access authorization.
Provide Subject Matter Expertise for customer inquiries.
FACTORS FOR SUCCESS
BS degree and 8-12 years of prior relevant experience
US Citizen with Active Secret Clearance or higher – required. Contract requirement.
Minimum of 5 years’ hands-on experience on Defense Health Agency projects in a cybersecurity role.
DoW 8570 Certification
Proficiency in eMASS
Prior experience with DoW Accreditation and tools such as eMASS, ACAS, CMRS and HBSS
Knowledge of networks, cyber defense toolsets and processes. Strong understanding of related technologies and significant knowledge of networking technologies, operating systems, and security tools, tactics, techniques, and procedures.
Attention to detail
Excellent written and verbal communication skills and the ability to effectively interact and work with internal team members, vendors and clients.
Experience with network and network security assessments and documenting the results using NIST SP 800-53A (Rev 5), completing security plans and recommending Security Controls for Federal Information Systems
Strong ability to document recommendations to correct security weaknesses resulting from security assessments and tracking implementation of corrective actions
Experience developing network and network security policies and system security documentation and procedures
Experience with DoW Information Assurance Vulnerability Management (IAVM) Program
Experience with Cloud
Experience with Containers
Scripting knowledge: PowerShell, Python, Shell Scripting
HOW YOU WILL STAND OUT FROM THE CROWD
PMP Certification
A high degree of proficiency in eMASS
DHA A&A Experience
Proficiency in ACAS/NESSUS, SCAP
Experience with Cloud
Experience with Containers
Experience with the DoW Information Assurance Vulnerability Management (IAVM) Program
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:July 14, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Skills Required
- Bachelor's degree and 8-12 years of prior relevant experience
- US citizen with active Secret clearance or higher
- Minimum 5 years hands-on experience on Defense Health Agency projects in a cybersecurity role
- DoD/DoW 8570 Certification
- Proficiency in eMASS and maintaining eMASS records per DoW/DHA requirements
- Prior experience with DoW accreditation and tools (eMASS, ACAS, CMRS, HBSS)
- Experience with network and network security assessments and documenting results using NIST SP 800-53A (Rev 5)
- Experience developing network/security policies, system security documentation, and procedures
- Experience with DoW Information Assurance Vulnerability Management (IAVM) Program
- Experience with Cloud technologies
- Experience with Containers
- Scripting knowledge: PowerShell, Python, Shell scripting
- Knowledge of networks, cyber defense toolsets, operating systems, and security tools/TTPs
- Attention to detail and strong written/verbal communication skills
- Ability to develop POA&Ms, track remediation, and document corrective action recommendations
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
