Alfredo R.

I help enterprise teams ship secure sign-in and cloud identity that holds up in production: Entra ID and OAuth2 SSO, Azure AD B2C, and hybrid identity, backed by 15+ years of full stack engineering and Microsoft Identity and Azure support roles. RECENT OUTCOMES • Led the migration of ChartLock from Wix to Azure, a HIPAA-oriented AI medical charting platform, from 10/2025 to a live handoff in 03/2026. I wrote about 68% of a ~2,000-line Bicep template declaring 79 Azure resources, built private networking with 8 private endpoints, and moved every Azure service call to keyless managed identity. Per the client, the platform cuts physician documentation time by 80%. • Designed the next-generation Azure sync at CyberFOX on Microsoft Graph $batch requests and delta queries, reducing sync time by 60% for large tenants and removing the redundant API calls behind chronic HTTP 429 throttling across 100+ connectors. • Shipped single sign-on for Workese Inc. (Google Auth plus Azure AD B2C custom policies) in 3 months against the team's own 6-month estimate, and coached their engineers to own it afterward. • Designed a dual path OAuth 2.0 SSO (Entra ID and Google Workspace) for an asset management platform serving 200+ users. My threat model found 3 critical OAuth vulnerabilities before implementation began. • Set up hybrid identity and SAML SSO for Nexuofit: Azure AD Connect, password writeback, and Entra ID SSO for Office 365, ShareFile, and Box. MICROSOFT IDENTITY AND AZURE BACKGROUND I worked inside Microsoft's Identity organization and its Azure CXP organization. I ranked 2nd among 50+ engineers across the Microsoft Identity organization with 474 internal Stack Overflow answers. Publicly, I hold 3,545 reputation on Stack Overflow. On Microsoft Q&A I hold 27,541 lifetime reputation and 335 accepted answers. AI-ASSISTED DELIVERY I deployed Azure AI Foundry LLM infrastructure for enterprise Upwork clients. I also piloted the GitHub Copilot rollout at JM Family. An autonomous run on my 13-agent orchestration framework (AAR) cleared 37 of 37 validation checks, including a security and privacy review. TRACK RECORD • Top Rated on Upwork with a 100% Job Success Score across 80+ projects • Microsoft Engineering & Architecture Talent Cloud member • Partnered with Sony Music and Microsoft • 17 LinkedIn recommendations I'm based in Lima, Peru. If you need identity that works in production, or a cloud migration done securely, send me a message about your project.