Full-Time

Security Controls Assessor / ISSO

Prosidian Consulting

Prosidian Consulting

11-50 employees

Management and operations consulting firm

No salary listed

No H1B Sponsorship

Alexandria, VA, USA

Hybrid

US Citizenship Required

Category
IT & Security (1)
Required Skills
FedRAMP

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Requirements
  • 5+ years ISSO experience
  • Bachelor’s IT
  • RMF, NIST
  • U.S. Citizenship is required
  • Security clearance is necessary for engagement teams managing sensitive federal work
  • Experience with Federal cybersecurity compliance frameworks including FISMA, FedRAMP, NIST 800-53, and Section 508 (as part responsibilities)
Responsibilities
  • Conduct security control assessments
  • Support Authority to Operate (ATO) processes
  • Ensure compliance with FISMA, FedRAMP, NIST 800-53, Section 508, and federal data privacy mandates
  • Validate controls and assess security to ensure accreditation
  • Support planning and execution for Cybersecurity & Compliance; coordinate stakeholders and deliver outputs required for compliant, scalable, and measurable mission support
  • Deliver Cybersecurity & Compliance functions through Human Capital Programmatic Evaluation & Compliance – Cybersecurity & Compliance
  • Work location at or near Alexandria, Virginia with Hybrid on/off client site
Desired Qualifications
  • 5+ years ISSO experience
  • Proficiency in project management methodologies and tools
  • Exceptional leadership and interpersonal skills for effective team management
  • Outstanding time management and prioritization abilities to meet project milestones
  • Ability to multi-task and pay close attention to detail
  • Excellent analytical, organizational and time management skills
  • Strong communication skills, both oral and written
  • Security clearance is a valuable asset

ProSidian Consulting provides management and operations consulting to private companies, Fortune 1000 enterprises, and government agencies. It uses industry-aligned services across six practice areas: Risk Management, Energy & Sustainability, Compliance, Business Process, IT Effectiveness, and Human Capital, delivered by multidisciplinary teams. The firm connects strategy to execution with On-Demand Resources and targets drivers of economic profit—growth, margin, and efficiency—across assets, processes, policies, and people. Its goal is to help leaders design and execute operations that increase value for customers and improve return on invested capital.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

Charlotte, North Carolina

Founded

2008

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Simplify Jobs

Simplify's Take

What believers are saying

  • Remote-first model attracts talent nationwide, cuts office overhead costs.
  • Energy & Sustainability practice meets tightening ESG mandates for Fortune 1000.
  • Human Capital solutions address 2025-2026 retention, skills gaps challenges.

What critics are saying

  • Deloitte poaches Big 4 alumni, erodes 190-professional talent pool in 6-12 months.
  • Stagnant website since 2020 loses clients to Booz Allen in 3-6 months.
  • No alliances post-2013 isolates energy bids against EY networks in 6-12 months.

What makes Prosidian Consulting unique

  • On-demand model deploys experienced-only Big 4 alumni for rapid execution.
  • Multidisciplinary teams span Risk Management, Energy & Sustainability, Compliance.
  • Structured approach links strategy to execution across assets, processes, people.

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Benefits

Remote Work Options