Santiago Roldán Ruarte

Remote · Freelance · Wellness

• Own the organization's entire technology infrastructure.
• Design and ship AI agents & automations end-to-end — e.g. marcOS, a WhatsApp assistant with RAG.
• Administer all platforms and integrations (Notion, Supabase, Slack, Calendly).
• Architect privacy at the system level to protect members' health data.

New York, US · Remote · Luxury Real Estate

• Automation development.
• Google Workspace, Okta and Zendesk administration.
• IAM and security best-practices implementation.
• IdP migration of 45,000+ users.
• Terraform infrastructure administration.

Buenos Aires · Remote · Fintech

• Administration of AWS, Auth0 and Google Cloud Platform.
• SaaS integrations using SAML, OAuth and OIDC.
• Helped achieve and maintain ISO 27001 and PCI DSS 4.0.
• Automation development and Zero Trust implementation.
• Led data-protection initiatives across engineering teams.

Buenos Aires · Remote · Banking

• Identity and access management for employees.
• New-hire training and access-administration process improvements.
• Troubleshooting of user access issues.

Berlin, Germany · Mobility · Car-sharing

• User lifecycle management; onboarding and offboarding.
• Hardware and software incident handling.
• Identifying GDPR-critical cases.

Buenos Aires · Consulting

• Automation of data-analysis processes.
• Linux server security administration.
• PowerShell scripting.

Buenos Aires · Consulting

• Access management for users in the United States.
• Security incident handling across platforms.
• Lotus Notes, Google G-Suite and Active Directory.

Buenos Aires · Public Sector

• Analysis of the national and international cybersecurity landscape.
• Security software research.
• SIEM administration.
• Information gathering and security testing of internal platforms.

AI WhatsApp assistant for a wellness community — RAG over a private knowledge base, per-member personalization, proactive follow-ups and privacy enforced at the architecture level.

AI Agent · WhatsApp · RAG

Identity provider for API credentials: centralized governance for service accounts, OAuth clients and API keys across AWS, Azure and GCP.

SaaS · Security · IAM

Nightlife event-management and ticketing platform — payments, QR check-in, built-in CRM and staff sales attribution.

Events · Fintech · SaaS

Bilingual public site + admin for curated boutique hotels; led a zero-downtime migration off a legacy host to Hostinger plus a full overhaul.

Hospitality · Full-Stack