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Portrait of Rayssa Guedes França
Portrait of Dorian Gray Rayssa Guedes

About me

I am a Computer Science student at Inteli and a software engineer focused on software engineering and artificial intelligence. I use Python, Java, JavaScript, and SQL to turn real-world problems into scalable systems.

As Vice President of Inteli Júnior, I also lead people, projects, and business decisions. I want to build products that connect technology, people, and measurable impact.

Education
Computer Science · Inteli
Focus
Software engineering · AI
Based in
São Paulo · Brazil

Chronicles of a journey

Experience

  1. Student Job — Data & Process Improvement

    Inteli

    • Developed automated spreadsheets in Python to centralize and analyze outsourced professionals’ work schedules, supporting time-sheet checks, flagging inconsistencies, and reducing manual work for Infrastructure and Facilities.
    • Python

  2. Winter Internship — AI & Data Science

    Banco Safra

    • Improved two AI ecosystems, each comprising 16 agents integrated into an orchestration platform and used by the legal team for research, investigation, asset validation, and credit-recovery workflows.
    • Analyzed usage and identified reliability bottlenecks and context loss, refining prompts, safety guardrails, and memory optimization.
    • Refined conversation-history storage for scalability, reducing file size by 40% without losing essential information.
    • AI
    • LLMs
    • Python
    • Prompt Engineering

  3. Summer Internship — Supply Chain & Automation

    Compra Agora (Unilever)

    • Developed a logistics control tower to monitor damages and returns, integrated with a WhatsApp chatbot.
    • Built automated workflows in n8n and business rules in JavaScript, using SQL and Databricks to manage states, SLAs, and the escalation of critical incidents.
    • Eliminated manual triage and increased communication speed between drivers and the operations center by 60%.
    • n8n
    • JavaScript
    • SQL
    • Databricks

  4. Vice President

    Inteli Júnior

    • Served as vice president of a junior enterprise with 60+ members, coordinating Technology, Business, People, and client delivery.
    • Led strategic planning, governance, metrics, and technology project management — reaching 201.6% of the annual target and BRL 128K in revenue in three months.
    • Previously Software Engineer (Feb–Dec 2025), developing full-stack web platforms with React.js and JavaScript.
    • Management
    • React.js
    • JavaScript

  5. Sales Consultant / Sales Lead

    Claro Brasil

    • Led a six-person team across targets, performance analysis, and commercial strategies, contributing to a 20% increase in results during the first three months.

Education and academic life

Studies

Computer Science

Inteli — Institute of Technology and Leadership

Full scholarship
  • Project-Based Learning (PBL): 16 projects across the degree, built with companies such as Mars, Chilli Beans, Copel, Suzano, Banco PAN and Rede Globo.
  • Student organisations: Vice President of Inteli Júnior, plus EchoSec, the cybersecurity society, and the Inteli Consulting Society.

BSc in Science and Technology

UFABC — Federal University of ABC

  • Where my journey in Computing began, before transferring to Inteli on a full scholarship.

Foundations

The strength of the structure lies in the integrity of its base; mastery is but logic applied with discipline.

The façade

Frontend

  • React.js
  • Next.js
  • TypeScript
  • JavaScript

The foundation

Backend

  • Python
  • Java
  • Node.js
  • Spring Boot
  • FastAPI
  • REST APIs
  • SQL
  • PostgreSQL

The toolkit

Tools

  • AWS
  • Docker
  • Git/GitHub
  • n8n
  • Databricks

Engineering manifesto

01

Purpose-driven engineering

I build technology to solve tangible business problems. My projects grew out of real challenges from companies such as Globo, Banco Pan, and Suzano, where every technical decision had to deliver measurable impact.

02

Clarity as a discipline

I favor readable, structured, scalable code over clever solutions no one can maintain. Clarity is an engineering discipline: it reduces noise, improves collaboration, and supports product evolution.

03

Evidence before opinion

Before defending an idea, I look for evidence. Metrics, validation, and experimentation guide my decisions and help turn hypotheses into reliable solutions.

Selected work

Projects

Project cover: Telemetry and Monitoring Platform
Grupo Globo (Globoplay)

Telemetry and Monitoring Platform

Monitoring and error-telemetry platform for Globoplay streaming, bringing together evidence and root-cause hypotheses to support front-end error diagnosis.

  • Python
  • React
  • Docker
  • AWS (EC2, Lambda)
Profile
Project cover: Credit Limit Optimization Model
Banco Pan

Credit Limit Optimization Model

Linear programming model to optimize pre-approved credit limits, balancing profitability, risk, and business constraints. Simplex-based solver, validated with OR-Tools across more than 2.8 million records.

  • Python
  • React.js
  • PostgreSQL
  • Docker
  • OR-Tools
Code
Project cover: Wildfire Response Optimization System
Suzano

Wildfire Response Optimization System

Resource-allocation system for wildfire response, modeled with graphs and minimum-cost flow algorithms (SSP and Network Simplex). Equivalence to the optimal solution validated with Google OR-Tools across 640 scenarios.

  • Java
  • Spring Boot
  • Next.js
  • PostgreSQL
Code
Project cover: Predictive Model for Store Expansion
Chilli Beans

Predictive Model for Store Expansion

Predictive model for store expansion and product-mix planning, with a Python pipeline using K-Means, KNN, and Random Forest, evaluated through accuracy, precision, recall, F1 score, and cross-validation.

  • Python
  • Machine Learning
  • Scikit-learn
Code
View more on GitHub

01 / 03

Amor Fati

Love of fate

Accepting the hard problem as a necessary part of the work. Blurred requirements, hostile legacy, short deadlines — that is where engineering actually happens.

“Every good structure begins with a well-framed question.”

Correspondence

Let’s build.

A meaningful problem, an ambitious product, or a good conversation about technology.

guedesrayssaa@gmail.comSão Paulo, SPPortuguese (native) · Advanced English (C1)