Hello, I'm Willian, Software Architect with 15+ years of enterprise-grade expertise!
I architect and implement next-generation solutions, delivering 300%+ performance improvements and driving digital transformation across fintech, healthcare, and startup ecosystems. 🚀SOFTWARE ARCHITECT
Designing enterprise-grade systems that transform business outcomes
With 15+ years of hands-on experience, I architect complex systems from conception to production, specializing in microservices, cloud-native applications, and AI/ML integration. My focus is on delivering measurable business impact while maintaining technical excellence.CORE EXPERTISE
System DesignMicroservicesAPI DesignEvent-DrivenAWSGCPAzureDockerKubernetesTerraformPythonNode.jsGoJavaRustTypeScriptReactNext.jsLLM IntegrationRAG SystemsLangChainAI/ML
WHY ME
- 15+ years designing scalable architectures for startups and enterprises
- End-to-end specialist: from system design to production deployment
- Proven experience integrating AI/ML into real-world products
- Track record leading technical teams of up to 20 developers
- Fluent across multiple stacks: Python, TypeScript, Go, Java, Cloud
End-to-end system design from cloud infrastructure to user interface. I design scalable architectures using modern patterns: microservices, event-driven, serverless, and cloud-native approaches that support millions of users and deliver measurable business impact.
FEATURED PROJECTSOpen source contributions and enterprise solutionsExplore my open source projects on GitHub and enterprise solutions where I've designed and implemented production-grade systems, from AI-powered tools to scalable architectures.
Open Source
Cloud-based DMS with AI-powered document processing, real-time collaboration, and enterprise-grade security. Features semantic search with pgvector embeddings, PDF split/merge, OCR via AWS Textract, multi-tenancy with Row-Level Security, and a desktop upload agent.
Business Impact:Full-stack monorepo architecture, real-time presence with Socket.IO, resumable uploads for large files
Next.js 15
NestJS 11
PostgreSQL
Prisma
Redis
BullMQ
AWS S3
Socket.IO
TypeScript
Open Source
Model Context Protocol server for intelligent handling of large files with smart chunking, navigation, and streaming. Features regex-powered search, file analysis, memory-efficient streaming, and built-in LRU caching for optimal performance.
Business Impact:Published on npm, integrated with Claude Code CLI, cross-platform support (Windows, macOS, Linux)
TypeScript
MCP Protocol
Node.js
Streaming I/O
LRU Cache
Open Source
AI-powered Python code analysis platform using Crew AI with multiple specialized agents. Provides comprehensive analysis of code quality, performance bottlenecks, security vulnerabilities (OWASP), documentation, and cyclomatic complexity metrics.
Business Impact:47%+ test coverage, multi-layer caching (LRU + Redis + PostgreSQL), horizontal scaling with Celery
Python
FastAPI
Crew AI
PostgreSQL
Redis
Celery
Radon
Docker
Open Source
AI-powered full-stack application that transforms long text into concise summaries using GPT-4o-mini. Features real-time streaming with Server-Sent Events, comprehensive security measures including prompt injection prevention, and a responsive interface with production-ready CI/CD.
Business Impact:95%+ test coverage, SSE streaming for instant feedback, security-first architecture
Next.js 15
FastAPI
OpenAI GPT-4o-mini
TypeScript
Python
SSE
Vercel
Render
Open Source
Production-ready cryptocurrency trading bot built with Clean Architecture and SOLID principles. Features adaptive hybrid strategies (Grid, Breakout, DCA), capital-based risk tiers, market regime detection, and full Telegram integration for monitoring and control.
Business Impact:Kelly Criterion position sizing, 10% max drawdown protection, multi-timeframe analysis
Python
Clean Architecture
Binance API
Telegram Bot
MySQL
Technical Analysis
Open Source
Automated software development platform integrating role-based architecture with AI/LLM technologies. Features 15+ predefined roles (CTO to QA), multi-project support, intelligent code analysis, and automated issue resolution with comprehensive logging.
Business Impact:Multi-LLM support (OpenAI, Claude, Mistral), hierarchical role collaboration, webhook integration
Python
OpenAI
Anthropic Claude
GitHub API
Multi-LLM
Role-Based Architecture
Open Source
Professional React application for creating, managing, and exporting meeting minutes with modern UX/UI. Features structured data input for participants, agenda, discussions, decisions, and action items with PDF export and local storage persistence.
Business Impact:Fully responsive design, real-time validation, comprehensive form handling with Zod
React 19
TypeScript
Vite
Tailwind CSS
shadcn/ui
React Hook Form
jsPDF
Open Source
Multi-platform dynamic forms system that renders complex forms from JSON configurations. Features enterprise-grade Clean Architecture, SOLID principles, auto-save drafts, real-time validation, and virtual scrolling for 200+ fields.
Business Impact:Cross-platform implementations showcasing architecture portability across Swift and Kotlin
Swift
Kotlin
Clean Architecture
JSON Schema
MVVM
Enterprise
Enterprise Fintech Platform
Architected a scalable payment processing system serving 10+ million users with 99.9% uptime. Designed microservices architecture handling 100k+ transactions per minute.Business Impact:300% performance improvement, 50% reduction in processing time
Python
Java
AWS
Microservices
Kubernetes
React
Enterprise
E-commerce Platform Transformation
Led digital transformation of NATURA's e-commerce ecosystem, implementing cloud-native architecture and modern development practices across multiple brands.Business Impact:Exceeded national delivery targets, significant revenue growth
Node.js
TypeScript
React
Cloud Infrastructure
BFF Pattern
Enterprise
AI-Powered Gig Economy Platform
Led architectural transformation of high-traffic platform implementing AI-powered solutions and scalable microservices to serve millions of users with real-time data processing.Business Impact:60% reduction in manual processing, 40% improvement in API response times
Python
Rust
LangChain
FastAPI
AWS
Docker
Kubernetes
Enterprise
Enterprise Security Architecture
Designed and implemented security architecture for a major financial institution. Created integration patterns, cybersecurity standards, and fraud prevention systems that significantly reduced security incidents.Business Impact:Significant fraud reduction, enhanced security for millions of customers
Java
Spring Security
TypeScript
Cloud Security
Integration Patterns