Senior Information System Security Officer – ISSO
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Senior ISSO securing federal information systems for Valiant Solutions, a cybersecurity and IT services provider. Managing FISMA, NIST, RMF, ATO, vulnerability, and security documentation activities.
Responsibilities:
- Serve as the primary IT security point of contact for assigned systems
- Ensure agency information systems comply with FISMA, OMB, and agency policies
- Perform architecture and technical design reviews across the full technology stack
- Lead screen-sharing sessions with system stakeholders to understand technology stacks
- Manage vendor relationships and ensure compliance with agency security and privacy requirements
- Assist stakeholders with IT security activities and project deadlines
- Develop audit questionnaire responses and remediation recommendations
- Ensure security activities and change management tasks are implemented throughout the SDLC
- Ensure systems are operated, maintained, and disposed of according to documented security policies and procedures
- Develop and maintain security documentation, including SSPs, PIAs, configuration management plans, contingency plans, POA&Ms, FISMA assessments, and incident reports
- Coordinate with stakeholders and system owners to implement and assess NIST 800-53 controls throughout the ATO lifecycle
- Research IT security systems and provide architecture and security recommendations
- Report and respond to security incidents
- Assess vulnerabilities, ensure systems are patched and security-hardened, and monitor remediation
Requirements:
- Bachelor’s degree in Computer Science, Information Systems, Mathematics, Engineering, or related degree, or an additional three years of relevant experience
- One of CISSP, CISA, CISM, or CCSP certification
- Minimum eight years of technical experience defining security program requirements or processes for protecting sensitive or classified information
- Minimum five years performing ISSO or ISSM functions for complex systems with high FIPS 199 categorization or High Value Asset status
- Competence in network, systems, or application information assurance
- Ability to obtain and maintain a Public Trust clearance
- U.S. citizenship required to obtain the necessary clearance, or legal authorization to work in the United States
- Detailed knowledge of NIST policies, governance, security planning and architecture, FISMA compliance, RMF, incident analysis, and security best practices
- Strong understanding and experience applying FISMA and the NIST Cybersecurity Framework
- Experience developing information security policies and procedures
- Strong written and oral communication skills
- Ability to communicate with technical and non-technical stakeholders
Benefits:
- Choice of medical plans, including HSA and PPO options, with company contributions
- Dental and vision coverage for employees and family
- Company-paid life, short-term disability, and long-term disability insurance
- Optional supplemental life, accident, and critical illness coverage
- 401(k) retirement plan with company match
- Paid time off that grows with years of service
- Paid federal holidays
- Paid certifications and professional development
- Valiant University training portal
- Flexible spending accounts
- Wellness and fitness program
- Referral bonuses
- Flexible remote work arrangement
Similar Jobs
Mid-Level Information System Security Officer, ISSO
Mid-Level ISSO securing federal government systems for Valiant Solutions, a cybersecurity and IT services company. Managing FISMA, NIST, ATO, audit, vulnerability, and security documentation activities.
Associate Security Researcher
Associate Security Researcher building automated threat research and detection pipelines at Trellix. Developing scalable malware analysis, telemetry, and security policy automation.
Professional SAP Technology Consultant – Security & Authorizations
SAP Security Consultant managing SAP Basis, authorizations, and S/4HANA transformations. Supporting Axians’ modernization of enterprise digital infrastructures and cloud solutions.
Professional SAP Technology Consultant – Security & Authorizations
SAP Security Consultant operating and transforming SAP landscapes for Axians, VINCI Energies’ ICT services specialist. Designing authorizations, security architectures, and S/4HANA migration solutions.
Professional Consultant, SAP Technology – Security & Authorization
SAP Security and Basis consultant supporting secure operations and S/4HANA transformations. Axians modernizes digital infrastructures for businesses, municipalities, providers, and public organizations.
Senior SAP Security Specialist, m/f/d
Senior SAP Security Specialist leading SAP security audits, consulting projects, and software workshops. Improving SAP security products for customers of German consultancy IBS Schreiber.
Senior Cybersecurity Engineer
Senior Cybersecurity Engineer protecting Voltex Electrical’s electrical wholesale distribution operations. Testing applications, securing cloud and identity systems, and leading incident response remotely from the Philippines.
Senior Information Security Specialist
Senior Information Security Specialist advancing GRC, third-party risk, compliance, and incident readiness. Supporting Halcyon’s adaptive platform dedicated to stopping ransomware.
Senior Security Control Assessor – FedRAMP 3PAO
Senior FedRAMP assessor leading cloud security compliance audits for Insight Assurance, a global cybersecurity and compliance audit firm. Evaluating NIST controls and mentoring assessment teams.
Junior Information Security and Privacy Consultant
Consultor de segurança da informação e privacidade apoiando assessments, avaliações de riscos e adequação a frameworks. Elaborando relatórios e recomendações para projetos de clientes diversos.
Security Impact Analysis Engineer
SIA Engineer supporting TSA information-system security impact analyses and RMF compliance. Evaluating cybersecurity risks, controls, architectures, and authorization documentation for Titan Technologies.
Senior Security Control Assessor, SCA
Senior Security Control Assessor supporting TSA’s cybersecurity governance, risk, and compliance mission. Evaluating security controls, authorization packages, vulnerabilities, and remediation activities.
Senior Cybersecurity Engineer, TS/SCI Clearance Required
ACAS cybersecurity engineer managing Nessus-based vulnerability assessment and DoD compliance. Supporting Air Operation Center cybersecurity, remediation, and incident reporting.
Head of Cyber Security
Head of Cyber Security leading cybersecurity strategy and governance for ABB’s global Process Control Platform. Protecting automation products through risk management, compliance, Linux and Kubernetes expertise.
Staff Product Security Engineer
Staff Product Security Engineer leading penetration testing across Guidewire’s cloud insurance platform. Securing web applications, APIs, SaaS architectures, and AI-powered product features.
Information Systems Security Officer
Information Systems Security Officer leading RMF authorization and cybersecurity compliance for federal on-premises and AWS systems. Managing eMASS, STIGs, vulnerability remediation, and continuous monitoring.
Staff Security Engineer – AppSec
Staff AppSec Engineer definindo segurança para produtos de pagamentos da Stone, incluindo aplicações com LLMs e IA generativa. Proteção de APIs, cloud, CI/CD e sistemas de produção.
Security Engineer II
Security Engineer securing Iovance’s cloud, identity, endpoint, email, and DevSecOps platforms. Supporting audit-ready security operations for a company developing TIL cancer therapies.
Application Security Developer III
Application security developer securing CareSource web, mobile, and service applications. Testing vulnerabilities, reviewing code, and automating security tools and processes.
Security Engineer – Agentic AI
Security Engineer securing agent gateways, tools, models, and data flows. Building production controls for BRAHMA AI’s enterprise media technology platform.