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rscres (Renato Crescenti) · GitHub

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rscres/README.md

Hi, I'm Renato 👋

Backend Software Engineer focused on Python, Java, automation, AI, and systems integration.

I build software that automates real-world business processes — especially workflows involving documents, email, APIs, ERP systems, and AI-assisted data extraction.

Currently exploring:

  • AI-assisted workflow automation
  • Local LLMs and structured extraction
  • Backend architecture and distributed systems
  • Reliable integrations between APIs and browser automation

Featured Projects

Intelligent Workflow Automation

Python • AI • APIs • Browser Automation

A modular automation system for processing email-driven financial workflows.

It handles:

  • Email and attachment ingestion
  • PDF/image/document extraction
  • AI-assisted structured data extraction
  • Deterministic validation and ambiguity handling
  • Document pairing and reconciliation
  • ERP process lookup and integration
  • Duplicate detection, retries, and audit logging

Currently being developed as a real-world automation platform.

Webserv

C++ • HTTP • Networking

An HTTP server implemented from scratch as part of the 42 curriculum.

Topics explored:

  • TCP sockets
  • HTTP request parsing
  • routing
  • configuration parsing
  • non-blocking I/O
  • CGI

Repository

Minishell

C • UNIX

A small UNIX shell implemented from scratch.

Includes:

  • processes and fork
  • pipes
  • redirections
  • environment variables
  • signals
  • command execution

Repository

MiniRT

C • Computer Graphics

A ray tracer built in C with support for basic geometric primitives, lighting, camera transformations, and scene parsing.

Repository

Tech Stack

Languages

Python • Java • C • C++ • SQL

Backend

FastAPI • REST APIs • Spring • Pydantic • SQLAlchemy

Automation & AI

Playwright • Ollama • Local LLMs • Structured Extraction • RPA

Infrastructure

Docker • Linux • Git • PostgreSQL • Redis

Systems

Sockets • Threads • Mutexes • UNIX Processes • HTTP

Background

I studied software engineering at 42 São Paulo, where I developed a strong foundation in systems programming, networking, concurrency, algorithms, and C/C++.

Professionally, I work with software automation using Python and Java, building integrations and workflows around business systems.

Currently Learning

  • Distributed systems
  • Backend architecture
  • AI agents and workflow orchestration
  • Reliable LLM-based extraction
  • Observability and production deployment

Contact

LinkedIn • GitHub

Pinned Loading

  1. 42push_swap 42push_swap Public

    Sort a stack with the fewest moves using limited movement options.

    C 2

  2. bonissanti/42SP_11_MiniRT bonissanti/42SP_11_MiniRT Public

    C

  3. 42FdF 42FdF Public

    First graphics project for the 42 cursus

    C 1

  4. 42minishell 42minishell Public

    A UNIX shell written in C with pipelines, redirections, built-ins, environment expansion, and signal handling.

    C 1

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