Solution Architect & AI Specialist

Ali Rassai

Two decades of experience architecting enterprise-grade systems across healthcare, government, and Fortune 500 environments.

I design and deliver interoperable digital health platforms, modern cloud-native applications, and AI-powered solutions that scale.

20+

Years in enterprise architecture

Millions

User accounts migrated

40%

Reduction in security incidents

30%

Fewer login errors via CIAM

Years leading healthcare IT

Professional Identity

Senior Architect | Solution Specialist | AI Expert

I bridge the gap between complex business requirements and cutting-edge technology. My work spans mission-critical healthcare systems, government digital infrastructure, and high-scale commercial platforms—all built on a foundation of security, interoperability, and innovation.

Philosophy & Approach

Architecture-First, Standards-Driven

I believe great systems start with clarity: understanding the problem, aligning stakeholders, and designing for change. My approach combines rigorous standards (HL7 FHIR, OAuth2/OIDC, HIPAA) with pragmatic delivery—iterative, testable, and built to evolve.

Interoperability by design

Systems that talk to each other from day one

Security as a feature

Zero-trust, defense-in-depth, compliance baked in

AI with guardrails

Intelligent systems that are explainable, auditable, and safe for regulated domains

Expertise

Core Domains

Healthcare & Digital Health

→ HL7 FHIR & Interoperability — Architected EHR/EMR systems and digital health integrations for provincial and national healthcare organizations
→ Clinical Standards — SNOMED-CT, LOINC, OLIS, medical billing, drug databases, and pan-Canadian health standards
→ Compliance — HIPAA, PIPEDA, and healthcare privacy frameworks across regulated environments
→ OLIS & Government Repositories — Secure connectivity to provincial laboratory and pharmacy systems
→ CDS Data Schema & EHR Standards — Clinical decision support, MC EDT, and data modeling for healthcare workflows
→ Patient Portals & Clinical Workflows — Self-service kiosks, secure messaging, lab results, and visit history

Modern Application Architecture

→ Cloud-Native Design — Microservices, containerization, and serverless on Azure and AWS
→ Identity & Security — CIAM, OAuth2/OIDC, MFA, passwordless authentication, and attack protection for millions of users
→ Full-Stack Development — .NET, Node.js, React, Angular, TypeScript—from backend APIs to responsive UIs
→ Event-Driven & Message Bus — Azure Service Bus, event sourcing, and async integration patterns
→ Data Pipelines & ETL — SSIS, Snowflake, Segment CDP, and cross-system data flows

AI & Intelligent Systems

→ AI/ML Integration — Research and implementation of diagnostic decision support, clinical advisory systems, and predictive analytics
→ University Collaboration — Led AI/ML pilots for medical diagnostics and intelligent healthcare applications
→ Data-Driven Solutions — Machine learning concepts applied to high-stakes, regulated domains
→ Explainable AI — Models designed for auditability and compliance in healthcare contexts

Identity & Access Management

→ Auth0, OAuth2, OIDC — Modern authentication flows, token lifecycle, refresh-token rotation
→ RBAC/ABAC — Claims, entitlements, feature flags, and fine-grained authorization
→ B2C & B2B CIAM — Customer identity at scale with custom domains and Universal Login

Experience

Highlights

Enterprise & Government

Delivered large-scale modernization initiatives for major retail and enterprise clients—migrating millions of accounts to modern identity platforms
Architected secure integrations with government repositories and provincial health systems
Reduced security incidents and login failures through adaptive MFA and attack protection
Led phased migration (analysis, design, test, cutover) including bulk account migration
Established CI/CD with YAML, Terraform, TeamCity, Octopus—production-grade deployment and QA gates

Healthcare Sector

Designed and implemented EHR solutions serving healthcare organizations across Ontario and beyond
Built patient-facing portals, clinical workflows, and interoperable data exchange with laboratory and pharmacy systems
Ensured HIPAA/PIPEDA compliance across patient data, secure messaging, and clinical applications
Developed low-level software for medical hardware and custom patient self-administration kiosks
Architected WCF/SOAP and OAuth2 connectivity to OLIS and other government health repositories

Private Sector

Led full-stack development for financial systems, transaction platforms, and high-volume web applications
Introduced CI/CD, containerization, and cloud adoption to development teams
Mentored engineers and established architecture standards across multiple organizations
Built inbound/outbound fax management, patient portals, and administrative tools using Angular and Twilio

Initiatives

Project Highlights

Identity Modernization

Migrated millions of user accounts from legacy auth to Auth0/OAuth2
Implemented token enrichment (RBAC/ABAC claims, entitlements, feature flags)
Reduced account takeovers by 40%; login errors by 30%

Healthcare Interoperability

Architected EHR solutions with HL7 FHIR across provincial organizations
Integrated OLIS, SNOMED-CT, and LOINC for standards-based clinical data exchange
Built secure connectivity to government repositories with WCF/SOAP and OAuth2

AI/ML Research

Conducted AI/ML pilots for diagnostic decision support with university partners
Applied machine learning to medical advisory and clinical workflows
Designed systems for explainability and regulatory compliance

IoT & Hardware

Developed Raspberry Pi C++/Python SDK for medical hardware integration
Built custom kiosks for patient self-administration in clinical settings

Technical Breadth

Stack & Tools

Backend

.NET .NET Core C# Node.js WCF REST APIs SOAP SQL Server NoSQL Cosmos DB Entity Framework

Frontend

React Angular Vue TypeScript Next.js Kendo UI Telerik

Cloud & DevOps

Azure AWS Docker Kubernetes Terraform CI/CD TeamCity Octopus Bitbucket Pipelines

Healthcare

HL7 FHIR OLIS SNOMED-CT LOINC CMS 4.x EMR/HIS CDS Data Schema

Identity

Auth0 OAuth2 OIDC SAML MFA Passwordless CIAM

Data

Snowflake Segment CDP SSIS SSRS ETL Data Warehousing

AI/ML

Diagnostic systems Clinical decision support Predictive analytics

Practices

Methodologies

Agile & Scrum

Jira, sprint planning, retrospectives, continuous delivery

Documentation

Requirements, design docs, architecture decision records

Code Quality

Code reviews, testing strategies, CI/CD gates

Stakeholder Engagement

Requirements discovery, multi-stakeholder alignment, standards development

Why Work With Me

Value Propositions

Deep domain expertise in both healthcare IT and modern cloud-native architecture

Proven track record delivering at scale—millions of users, mission-critical systems

Standards-compliant by default—FHIR, OAuth2, HIPAA, PIPEDA

Full-stack capability—from database design to UI, from on-prem to cloud

AI/ML experience in regulated, high-stakes environments

Credentials

Education & Certifications

MSc, Computer Software Engineering — Ryerson University BSc, Electrical and Electronics Engineering — Islamic Azad University Microsoft Certified Application Developer (MCAD) Certified Angular Developer