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Skills

What I work with, how long, and how deep. No fluff.

ExploredSmall experiments, played with it
FamiliarCan use it, personal projects
ProficientConfident, used in production
AdvancedDeep knowledge, multiple production systems
ExpertMastery, go-to tool

Languages

TypeScript6y

Core language across every project

Expert
Python5y

Automation, scraping, IoT, CLI tools

Proficient
C / C++3y

Computer graphics (OpenGL), academic projects

Familiar
PHP2y

Early web projects

Familiar
Java2y

Early mobile and academic projects

Familiar
SQL / TSQL4y

Production queries and stored procedures at Globalsys

Proficient
Shell / Bash6y

Dotfiles, server setup, automation scripts

Advanced

Backend & APIs

Node.js6y

APIs, CLIs, automation, everything server-side

Expert
NestJS4y

Rancho API, Delivery API, Alahubs

Advanced
Express.js4y

Libreary API, early projects

Proficient
.NET2y

Basic exposure in enterprise environments

Familiar
REST APIs6y

Designed and shipped dozens of APIs

Expert
Event-Driven Architecture4y

Kafka → Redis Pub/Sub, RabbitMQ

Advanced
Socket.IO / WebSockets3y

Real-time features in Alahubs

Proficient
BullMQ2y

Job queues and background processing

Proficient
Temporal.io2y

Workflow orchestration, durable execution at Globalsys

Proficient
Swagger / OpenAPI4y

API documentation across all NestJS projects

Advanced
Stripe + Mercado Pago3y

Dual payment processing in Alahubs

Proficient

Databases & Search

PostgreSQL5y

Primary database in production systems

Advanced
SQL Server4y

Production at Globalsys, 357KB+ of stored procedures

Proficient
MongoDB3y

Libreary, document-oriented storage

Proficient
Redis3y

Pub/sub, caching, real-time delivery events

Proficient
Prisma3y

ORM across multiple projects

Advanced
Sequelize3y

ORM in Rancho, Globalsys projects

Proficient
Elasticsearch / OpenSearch2y

Search at scale in Rancho and Protas.io

Proficient
Typesense2y

Search engine in Rancho

Familiar
DuckDB1y

Analytics and local queries

Familiar
CouchDB2y

Document store, CLI tooling

Familiar

Frontend

React6y

Primary UI library for everything

Expert
Next.js4y

Dashboards, marketing sites, this site

Advanced
React Native / Expo3y

Rancho iOS & Android apps in production

Advanced
Tailwind CSS3y

Default styling approach

Advanced
HTML / CSS8y

Since before college

Expert
Styled Components3y

Used in older projects

Proficient
Bootstrap3y

Early web projects

Familiar

DevOps & Infrastructure

Docker / Compose5y

All services containerized, migrated from K8s

Advanced
Linux / VPS5y

Own server, full stack management

Advanced
Git8y

80+ repositories

Expert
CI/CD4y

GitHub Actions across all projects

Advanced
AWS4y

Certified Cloud Practitioner, S3, Textract, Polly, CloudFront

Proficient
Traefik3y

Reverse proxy for self-hosted infra

Proficient
Nginx3y

Reverse proxy, Alahubs infra

Proficient
Kubernetes / Helm2y

Used before migrating to Docker Compose

Familiar
Sentry3y

Error tracking in production

Proficient
JIRA3y

Sprint management, integrated with automation scripts

Proficient

Desktop & IoT

Arduino / ESP329y

Home automation, award-winning high school project

Advanced
Tauri2y

Cross-platform desktop apps (AI Central, Icloser)

Proficient
Chrome Extensions1y

Built Lexora extension

Proficient
Raspberry Pi3y

Home automation and IoT hub

Proficient
MQTT2y

IoT device communication

Proficient

AI & Automation

LLM APIs (OpenAI, Claude)2y

Built Optix, Claudeeper, Lexora, AI Central

Advanced
Embeddings / pgvector1y

Vector search and semantic retrieval

Proficient
MCP Servers1y

Optix MCP, built from scratch

Advanced
Playwright2y

Browser automation and scraping

Proficient
Selenium3y

Web automation and testing

Proficient
Puppeteer2y

Browser automation, scraping

Proficient
OpenCV1y

Computer vision experiments (CarVision)

Familiar
Whisper1y

Audio transcription

Familiar
ElevenLabs1y

Text-to-speech in landing pages

Familiar

Testing

Jest4y

Unit, integration, e2e. Custom reporters, factories

Advanced
Test Doubles (Mocks, Stubs, Doubles)3y

Custom doubles for MSSQL, RabbitMQ, API clients

Advanced
E2E Testing3y

Full workflow tests with DB isolation and API stubs

Advanced
Integration Testing3y

Testcontainers, real DB snapshots, race condition tests

Advanced
Unit Testing4y

Service-level tests with dependency injection

Advanced
k63y

Performance and load testing

Proficient
Supertest3y

HTTP assertion testing for APIs

Proficient

Marketing & Growth

Meta Ads2y

Paid traffic with real budget

Proficient
Direct Response Marketing2y

Nutra COD, native ads, spy tools

Proficient
Quiz Funnels2y

Inlead → built my own tool

Proficient
VSL / VTurb2y

Built my own video hosting tool

Proficient
Copywriting2y

Sales pages, funnels, direct response

Proficient
SEO2y

Organic traffic fundamentals

Familiar

Languages

PortugueseNative
ListeningC2
SpeakingC2
WritingC2
English
ListeningB2
SpeakingB1
WritingB2
Spanish
ListeningA2
SpeakingA1
WritingA1