"I don't see code as an end in itself, but as a tool to understand real-world problems, deconstruct needs, and craft solutions that genuinely help people."
I am an undergraduate student in Systems Analysis and Development at Fatec Taubaté, dedicated to crafting clean, practical solutions with a strong emphasis on logic, clarity, and user value.
- 🎯 What I'm looking for: My first opportunity as a Software Development Intern (remote or hybrid/on-site in Vale do Paraíba and São Paulo).
- 🧩 My background: My first coding experiments began in early adolescence hosting game servers with Lua, MySQL, and XAMPP. I completed a Vocational IT Program (Etec), and later earned a Bachelor's and Postgraduate degree in Strategic Marketing. This background gives me communication maturity, team empathy, and the ability to translate real user and operational needs into software.
- 🚀 Full-time focus on code: I transitioned full-time to software engineering. Today, my daily routine is split between Fatec coursework, the ARInter international C programming program, and building applications that solve real workflow bottlenecks.
I leverage Artificial Intelligence intentionally and systematically as an engineering multiplier:
- ⚙️ Agentic Workflows & Context: I design and orchestrate agentic workflows, MCP (Model Context Protocol) servers, and custom modular skills for automated tasks, deep technical research, and agile architecture prototyping.
- 🛡️ Security Boundaries & Hygiene: I enforce strict code hygiene rules: zero credentials/secrets in code, prompt injection sanitization, sandboxing boundaries, and defensive contract and type validations.
- 🧱 Fundamentals First: Agentic automation increases my productivity, but technical responsibility and critical judgment remain mine. That is why I make a point of maintaining a daily routine studying the fundamentals.
Projects focused on solving real problems, clean code, and conceptual rigor:
Single Page Application (SPA) for smart image and multi-page PDF slicing across A3/A4 formats for large-format wall printing.
- Real-world problem: School staff and administration teams needed to produce large posters and murals (> 1 meter wide), but were restricted to standard office A4/A3 printers.
- Measurable impact: Adopted as a daily workflow tool by 50+ staff members across educational environments, saving hours of manual trial-and-error and preventing paper and ink waste.
- Engineering craft: Built in Vanilla JavaScript (ES6+) with zero build/bundling overhead. 2D Canvas manipulation via Fabric.js, client-side PDF ingestion and rendering via PDF.js and jsPDF, mobile touch gesture handling (Hammer.js), and ZIP packaging via JSZip.
- 🔗 GitHub Repository · Live Application (Vercel) · Read Portfolio Case Study
Coursework, systems programming, and low-level memory engineering at Fatec Taubaté & ARInter.
- International context: Internationalization program taught 100% in English by the International Relations Office (ARInter / CEETEPS) in collaboration with international exchange peers.
- Hands-on fundamentals: Data representation, byte sizing (
sizeof), memory addresses and pointer arithmetic, I/O stream buffers (scanf/printf), control flow, recursion, and a consolidated interactive console CLI menu. - 🔗 GitHub Repository
Fatec Taubaté logic laboratory exercises developed with static typing and clean code discipline.
- Core focus: Classical algorithms and data structures implemented in TypeScript on the Node.js runtime.
- Disciplined engineering: Strict static typing to catch runtime bugs at compile time, domain modeling using
interfaces, desk checking (RAM trace tables), and modular, readable code. - 🔗 GitHub Repository
Full-stack web learning ecosystem built to support my volunteer Mandarin Chinese students.
- Full Stack Architecture: Built with Next.js 19 (App Router), TypeScript, and Supabase (PostgreSQL with Row Level Security and private storage).
- Engineering & AI: Integrated the 4th-generation FSRS spaced repetition algorithm (
ts-fsrs), nativeMediaRecorderaudio capture with strict peripheral cleanup to prevent mobile browser memory leaks. - 🔗 Read Full Case Study
Transparently organized between daily practice and ongoing study:
| Category | 🟠 In Daily Practice | 🔵 Actively Deepening |
|---|---|---|
| Languages & Core | JavaScript (ES6+), TypeScript, C (ANSI / C99) |
SQL / PostgreSQL, Python |
| Frontend & Web | Semantic HTML5, CSS3, Canvas 2D, Fabric.js, Tailwind CSS |
React, Next.js, Web Accessibility (a11y) |
| Backend & Database | Node.js, Supabase, Google Apps Script |
PostgreSQL, Relational Schema Design |
| Tools & Environment | Git & GitHub, Linux / Bash, VS Code, Vercel |
Docker, CI/CD Pipelines |
| Methodology, AI & Quality | Agentic Workflows & MCP, Custom Skills, Clean Code |
Data Structures, API Security |
- 🇧🇷 Portuguese: Native
- 🇺🇸 English: Advanced / Fluent (synchronous lectures, documentation, technical collaboration)
- 🇨🇳 Mandarin: Basic / Actively learning (volunteer teacher and language enthusiast)
- 🇪🇸 Spanish: Basic reading and comprehension
I am always open to feedback, mentorship, tech discussions, and internship opportunities. If you are looking for an intern with genuine curiosity, high ownership, and a strong work ethic:
- 💼 LinkedIn: linkedin.com/in/lucasresendev
- 🌐 Portfolio & Blog: lucasresendev.com
- 📍 Location: Pindamonhangaba, SP - Brazil (Vale do Paraíba) · Available for Remote or Hybrid Internships