Full Stack Architecture

Overview

I design and build complete software systems, from database architecture and API layers to frontend interfaces, mobile applications, and production infrastructure.

Across 7+ years, I've engineered, owned, or contributed to 11+ shipped products spanning Rails 6 through Rails 8 backends, React 18/19 frontends, React Native iOS + Android mobile, and headless Ruby clinical-data pipelines. Production work includes multi-year clinical-research deployments serving 100-500 enrolled participants and 50-100 clinicians per study, an industrial diagnostics app launched Canada-wide to hundreds of users, and a clinical- laboratory PDF pipeline processing 500-800 patient reports per batch on Azure.

This is the kind of work that requires:

• Secure data handling
• High availability
• Real-time capabilities
• Scalable backend systems
• Maintainable frontend architecture
• Reliable cloud infrastructure

I approach full stack engineering as system design, not isolated feature development.

Architectural Philosophy

1. Design for Scalability Early

Scalability is easier to build in from the beginning than to retrofit later.

I architect systems using:

• Clear domain modeling
• Service-oriented backend structures
• Stateless API design
• Horizontal scaling strategies
• Database indexing and query optimization
• Caching layers (Redis)

This ensures systems remain stable as usage grows.

2. Strong Separation of Concerns

Clean architecture enables long-term maintainability.

• Rails APIs handle business logic and persistence
• React / React Native manage presentation and user interaction
• Background workers handle asynchronous processing
• Infrastructure handles reliability and deployment automation

Each layer has a defined responsibility.

3. API-First System Design

I build backend systems as independent API services that power:

• Web applications (React)
• Mobile applications (React Native)
• Third-party integrations
• Webhook-driven external systems

This creates flexibility and future extensibility without rewriting core logic.

4. Security by Default

In healthcare-focused systems, security cannot be optional.

I implement:

• Role-based access control
• Secure authentication flows (JWT / OAuth / 2FA)
• Encrypted credentials
• SSL/TLS enforcement
• Secure storage strategies
• Infrastructure hardening

Security decisions are made at architecture level, not patched later.

5. Performance as an Architectural Decision

Performance is designed, not debugged.

Backend:

• N+1 query prevention
• Index optimization
• Read replicas
• Background processing

Frontend:

• Code splitting
• Memoization
• Bundle optimization
• Virtualized rendering

Mobile:

• Rendering optimization
• Offline-first strategies
• Memory management

Infrastructure:

• CDN configuration
• Caching layers
• Monitoring & alerting

End-to-End System Example

A typical system I architect includes:

Backend (Rails)

• REST or GraphQL APIs
• Secure authentication & authorization
• Background processing
• Caching with Redis
• MySQL/PostgreSQL database
• File storage (S3)

Web Frontend (React)

• Component-driven UI
• Centralized state management
• API integration
• Real-time updates
• Accessibility compliance

Mobile (React Native)

• Shared business logic
• Offline data persistence
• Push notifications
• Biometric authentication
• OTA update support

Infrastructure (AWS / Docker)

• EC2-hosted services
• Managed databases (RDS)
• CI/CD pipelines
• Zero-downtime deployments
• Monitoring and alerting
• Automated backups

Reliability & Operations

Production systems require operational discipline:

• CI/CD automation
• Staging & production parity
• Deployment documentation
• Incident response planning
• Proactive monitoring
• Disaster recovery strategies

I treat infrastructure as part of the product, not an afterthought.

What Full Stack Means to Me

Full stack is not about knowing many frameworks.

It means:

• Understanding how systems behave under load
• Designing APIs that evolve safely
• Building interfaces that scale
• Ensuring deployments are reliable
• Protecting user data responsibly
• Thinking in systems, not features

I build software that is:

• Scalable
• Secure
• Maintainable
• Observable
• Production-ready

Core Stack

• Ruby on Rails
• React & Next.js
• React Native
• MySQL / PostgreSQL
• Redis
• AWS
• Docker
• CI/CD Automation

Closing

From database schema design to mobile deployment pipelines, I take ownership of the full software lifecycle.

My focus is building systems that work today, and continue working reliably as they grow.