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Information Systems Security Officer (ISSO) – Mid/Senior Level

Role overview

Summary

The role of Information Systems Security Officer (ISSO) at Tangent Technologies focuses on supporting a federal program by ensuring security, compliance, and risk management of information systems. You will serve as a trusted security advisor, guiding systems through the ATO lifecycle and implementing continuous monitoring practices.

Qualifications

  • Bachelor’s degree in IT, Cybersecurity, or a related field.
  • Minimum of 6 years of experience in ISSO or RMF roles.
  • Direct experience developing ATO packages (SSP, POA&M, SAR).
  • Strong knowledge of NIST SP 800-53, FISMA, and RMF requirements.
  • Demonstrated ability to manage multiple systems (4-6 simultaneously).

Responsibilities

  • Lead the preparation of ATO packages, including System Security Plans (SSPs) and Security Assessment Reports (SARs).
  • Conduct Security Impact Analyses (SIA) for system changes and develop mitigation strategies for vulnerabilities.
  • Perform self-assessments and risk assessments, including annual testing of Contingency Plans.
  • Review audit logs and analyze vulnerability scans to ensure the effectiveness of security controls.

Key facts

  • Remote from: United States
  • Full time
  • Mid-level (2-5 years)
  • Chief Information Security Officer (CISO)
  • English

Hard skills

Other skills

  • Communication
  • Detail Oriented
  • Proactivity

About the company

Tangent Technologies LLC logo

Tangent Technologies LLC

  • 51–200
Tangent Technologies specializes in providing expert technical program management, cyber security infrastructure analysis, cloud services, and user-support services. From analysis, implementation to ongoing operational support, Tangent Technologies’ resource capabilities enhance government projects involved in managing our nation’s mission critical operations and securing our nation against ongoing cyber threats. Our vast experience positions us to handle critical milestones, key deliverables, financial constraints and resource allocation with every contract. Core Competencies: -Technological Program Management (PMBOK Principles. Program Planning) -Cyber Security (Intelligence Integration. Security Compliance and Risk Analysis) -Cloud Services (Migration preparations. Cloud environment setup) -User-Support Services (Network Engineering. Network Services Support) Contract Vehicles: DHS Adapts NIH Mission Alignment BPA GSA IT Schedule 70 Including Cyber HAC SINS U.S. SEC ONE IT IDIQ DHS ICE SOC and CSIRC Contract

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Job description

Tangent Technologies is seeking a skilled Information Systems Security Officer (ISSO) to support a federal program. The ISSO will ensure ongoing security, compliance, and risk management of information systems. This role is critical in the development and implementation of system security documentation and procedures, which are required to obtain and maintain an Authority to Operate (ATO).
In this position, the ISSO will serve as a trusted security advisor, ensuring compliance with federal standards including NIST, FISMA, FedRAMP, and the Risk Management Framework (RMF). The ISSO will also help implement effective continuous monitoring practices for assigned systems.

Candidates should be proactive, detail-oriented, and possess strong communication skills for client engagement.

This position is 100% REMOTE.

Key Responsibilities

  • Security Assessment & Authorization (A&A): Lead the preparation of ATO packages, including System Security Plans (SSPs), Plans of Action & Milestones (POA&Ms), Security Assessment Reports (SARs), and supporting documentation. Guide systems through the ATO lifecycle and continuous authorization processes, ensuring compliance with NIST SP 800-53, FISMA, and RMF standards.
  • Risk Mitigation: Conduct Security Impact Analyses (SIA) for system changes, develop mitigation strategies for identified vulnerabilities, and collaborate with system engineers to maintain secure system baselines.
  • Compliance Enforcement: Perform self-assessments, risk assessments, and annual testing of Contingency Plans and Incident Response Plans.
  • Continuous Monitoring: Review audit logs, analyze vulnerability scans, and evaluate system-level reports to ensure the effectiveness of security controls.
  • Technical Knowledge: Demonstrate expertise in network security, cloud environments (including containers and architectures), operating systems, and security assessment tools.

Required Qualifications

  • Bachelor’s degree in IT, Cybersecurity, or a related field
  • Minimum of 6 years of experience in ISSO or RMF roles
  • Direct experience developing ATO packages (SSP, POA&M, SAR)
  • Strong knowledge of NIST SP 800-53, FISMA, and RMF requirements
  • Demonstrated ability to manage multiple systems (4-6 simultaneously)

Preferred Qualifications

  • Experience with cloud-based systems (SaaS, IaaS, PaaS) from major providers such as AWS, Azure, or GCP
  • Experience using Google Suite tools
  • Familiarity with AI tools such as Gemini, ChatGPT etc.
  • Familiarity with Archer or CSAM platforms
  • Relevant certifications (one required): CISSP, CISM, CISA, CRISC, CGRC
  • Experience supporting federal civilian agencies. Active Public Trust clearance

Veteran Hiring Preference

Tangent Technologies is a Service-Disabled Veteran-Owned Small Business (SDVOSB). Veterans and military-affiliated individuals are strongly encouraged to apply.

Security Requirement

Candidates must successfully complete a federal background investigation, which includes a financial suitability screening.
 

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