Information System Security Officer (ISSO) - DHS

Information System Security Officer (ISSO) - DHS

Job Locations US-Remote Job ID 2025-13054 # of Openings 1 Category Cyber Benefit Type Salaried High Fringe/Full-Time

Overview

LMI is seeking an Information System Security Officer (ISSO) to support our Department of Homeland Security (DHS) market.

LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.

Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors-helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.

Responsibilities

Acquire and manage all necessary documentation/artifacts, including cybersecurity support and resources, to support IT cybersecurity goals and objectives from a risk management perspective.
• Advise senior management on system risk levels and cybersecurity posture for cloud-based environments
• Assist in the deployment, architecture and configuration of security controls of deployed systems with Cloud Architects
• Ensure that developed systems and architectures are consistent with all applicable DHS cybersecurity policies and guidelines.
• Perform Assessment and Authorization (A&A) cybersecurity reviews, identify gaps, and support risk management plans for cybersecurity personnel to execute.
• Provide input on cybersecurity requirements and collect and maintain data needed to meet system cybersecurity compliance reporting.
• Provide subject matter expertise for Risk Management Framework (RMF) activities and related documentation to support system accreditation / Authority to Operate (ATO) requirements.
• Interpret noncompliance to determine the impact on levels of risk and/or overall effectiveness of the enterprise's cybersecurity program.
• Track audit findings and recommendations to ensure that appropriate mitigation actions are taken.
• Support necessary compliance activities (e.g., ensure that system security configuration guidelines are followed, compliance monitoring occurs).
• Coordinate with geographically-distributed, multi-discipline teams to ensure compliance with all applicable requirements for cybersecurity are addressed.
• Ensure that plans of action and milestones (POAM) or remediation plans are in place for vulnerabilities identified during risk assessments, audits, inspections, etc. and support necessary remediation/compliance activities.
• Participate in recurring cybersecurity working group meetings.
• Oversee and manage A&A activities to support their respective systems and security activities.
• Work with program ISSOs and ISSMs to effectively aggregate technical details for government leadership including the cybersecurity lead, project managers, program managers to facilitate succinct and effective risk discussions and provide understanding of respective program risks.
• Provide security support and evaluation to development teams to integrate information assurance/cyber security and remediate vulnerabilities throughout the System Life Cycle Development.
• Lead the development, review and management of system Assess and Authorize documentation to ensure it is compliant with RMF standards.
• Develop guidance and assists associates through the RMF phases.
• Participate in ATT and ATO activities
• Support the organization's program that implements information systems security technology and procedures.
• Review DHS policy and develop local policy and procedures that implement the DHS Cybersecurity subprograms and initiatives.
• Create and submit Plan of Actions & Milestones (POA&M) for review and approval by the Authorizing Official (AO)

Qualifications

Required Qualifications

• Bachelor's degree in a related field or equivalent experience.
• 8+ years demonstrated SP 800-37 RMF, NIST 800.53 experience
• Familiarity with cybersecurity tools such as Aquasec and Sonar Qube
• Must possess a Security + certification
• Experience developing or ensuring development adheres to cybersecurity requirements and best practices (e.g., NIST controls)
• Familiarity with commercial off-the-shelf solutions for specific security capabilities
• DHS/CBP background investigation highly preferred

Desired Qualifications

• Exposure to AWS, Azure and Google Cloud
• Host Base Security System (HBSS), Tenable Nessus Vulnerability Assessment, EMASS

Disclaimer:

The salary range displayed represents the typical salary range for this position and is not a guarantee of compensation. Individual salaries are determined by various factors including, but not limited to location, internal equity, business considerations, client contract requirements, and candidate qualifications, such as education, experience, skills, and security clearances.

Target Salary Range- $119,813.31 - $189,000

Applicants must meet eligibility requirements for a U.S. Government security clearance. Only US Citizens are eligible for a security clearance. For this position, LMI will only consider applicants with security clearances or applicants who are eligible for security clearances, due to the nature of the work.

LMI is an Equal Opportunity Employer. LMI is committed to the fair treatment of all and to our policy of providing applicants and employees with equal employment opportunities. LMI recruits, hires, trains, and promotes people without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, pregnancy, disability, age, protected veteran status, citizenship status, genetic information, or any other characteristic protected by applicable federal, state, or local law. If you are a person with a disability needing assistance with the application process, please contact View email address on click.appcast.io
Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.


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