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JustSidus/README.md

Bryan Varela

Backend & Cloud Software Engineer

I design and build scalable platforms. My focus is software architecture, data security, and cloud deployment - from system design and stack selection to integration and production shipping.

Portfolio Email GitHub


Latest Project

Arelify - B2B Multi-Tenant SaaS

arelify.com

MVP in production, currently in commercial validation. A private SaaS platform for appointment scheduling and landing page generation, targeting service SMBs that today operate entirely through WhatsApp. The core challenge: multiple businesses sharing the same infrastructure with complete data isolation between tenants.

  • Role: Technical co-founder - 100% of backend, infrastructure, and frontend.
  • Architecture: Clean Architecture with C# 14 and .NET 10.
  • Cloud Infrastructure: Dockerized, deployed to Google Cloud Run. Scales to zero.
  • Edge & Performance: Cloudflare Workers, Pages, and DNS for BFF pattern and real SEO.
  • Data: Managed PostgreSQL 16. Double-booking enforced at the database level via a filtered unique index - no application-layer logic involved. Multi-tenant isolation via Global Query Filters.
  • Security: Passwordless authentication via WorkOS. Server-issued JWT, opaque to the client.
  • Frontend: React 19 on Cloudflare Pages.

Featured Public Work

bryanvarela.dev

Personal technical portfolio. An interactive dark VS Code-style IDE that lets you browse projects, architecture decisions, and engineering context as if navigating a real code editor.

Stack: React · Vite · Tailwind CSS · Cloudflare Pages.

Highlights: Custom tokenization, dynamic theming, routerless SPA.

View repository

Paste Image to Terminal

VS Code extension that bridges clipboard images into the terminal inside Dev Containers - built for AI agent workflows like OpenCode CLI.

The problem: normal Ctrl+V fails inside a container because the clipboard lives on the host. This extension runs on the VS Code host, writes the image via vscode.workspace.fs (the same IPC channel VS Code uses to sync Dev Containers), then injects the path using bracketed paste sequences so the AI agent receives a real paste event - not simulated typed text.

Stack: TypeScript · VS Code Extension API · Node.js.

Highlights: Zero npm dependencies for image capture, SHA-256 deduplication, cross-platform (Windows / macOS / Linux), concurrency-safe with mutex.

View repository

Visitor Management System

Full-stack SPA built for a government agency, replacing paper-based visitor logs with a secure, auditable access control system.

Stack: PHP 8.3 · Laravel · Vue 3 · Microsoft Entra ID · Azure.

Highlights: Decoupled REST API + SPA architecture. Enterprise SSO via MSAL → Entra ID → scoped JWT. RBAC across 4 organizational roles. PDF/Excel reporting. Immutable audit trail. Deployed to Azure App Service, Static Web Apps, and Database for MySQL.

View repository

Tech Stack

Backend & Architecture

C# .NET 10 TypeScript Python PHP Laravel Node.js

Frontend

React Vue.js Vite Tailwind CSS

Cloud, DevOps & Databases

Google Cloud Run Cloudflare Azure Docker GitHub Actions PostgreSQL SQL Server MySQL

Pinned Loading

  1. bryanvarela.dev bryanvarela.dev Public

    Personal portfolio and technical showcase

    JavaScript

  2. gestion-visitas-demo gestion-visitas-demo Public

    Sistema de gestión de visitas (Laravel + Vue 3) con roles, reportes PDF/Excel y versión demo anonimizada para portafolio.

    PHP

  3. ecommerce-n-tier-architecture ecommerce-n-tier-architecture Public

    Plataforma e-commerce estructurada bajo el patrón de arquitectura N-Capas utilizando C# y .NET

    C#

  4. python-accounting-integration python-accounting-integration Public

    API de Sincronización Contable

    Python 1