Sig Petursson

Strategic IAM Architect and Cybersecurity Expert with 17+ years of experience designing enterprise security solutions across on-premises, hybrid, and SaaS environments.

Trusted Subject Matter

Expert (SME) in leading complex Mergers & Acquisitions (M&A) identity integrations and tenant-to-tenant migrations. Expert in aligning technical controls with Risk Management Frameworks to deliver measurable ROI and mitigate multi-million dollar licensing risks.

Lead IAM Architect at University of Miami (2025-01 – Present)

• M&A Identity Consolidation: Spearheading the Tenant-to-Tenant migration strategy to merge Academic UM and UHealth identity sets; architecting a unified identity structure and global address list (GAL) to ensure seamless cross-organization collaboration.
• Secure Design Patterns: Developing reference architectures for clinical provisioning (Epic) utilizing Zero-Trust principles to replace legacy AD models with explicit direct-provisioning, ensuring HIPAA-mandated least-privilege.
• Quantitative Risk Modeling: Conducted comprehensive QRA for SSPR systems, producing risk decision records that identified a $21,500 ALE and justified 95% risk reduction through modernization.
• Standards & Governance: Establishing security guardrails and "Account Review Task Forces" to govern iterative identity workflows for 150k+ active identities across SailPoint, Profisee, and Azure AD.

IAM Architect at University of Miami (2010-01 – 2025-01)

• IGA Architecture: Architected and deployed the University's primary SailPoint IGA system, establishing the core identity lifecycle standards for 150k+ users across diverse hybrid cohorts.
• SaaS Security Integration: Directed the identity workstream for the enterprise Outlook-to-Gmail migration; developed custom Python/API automation to bridge synchronization gaps between on-prem and SaaS directories.
• Fiscal Stewardship: Engineered an email-forwarding architecture for 23,955 alumni, realizing $317,760 in recurring annual cost avoidance and optimizing engineering resource allocation.

Senior Programmer at University of Miami (2007-07 – 2009-12)

• System Modernization: Led the transition of legacy Informix database systems to modern three-tier architectures, establishing automated data synchronization standards.
• Application Architecture: Designed loosely coupled module architectures for course management systems, ensuring scalability and data integrity for university-wide faculty use.

B.S. in Computer Science – University of Iceland

A.B. in Associate of Business – Commercial College of Iceland