Mateus Nascimento
PTLet's talk

Introduction

Mateus Nascimento dos Santos

Software Development · Machine Learning · AI Model Development

My technical experience in software and AI has been built mainly through my own projects, independent products and applied study. I build applications, SaaS systems and APIs, and I also explore the AI model lifecycle — data preparation, architecture, training, evaluation, optimization and product integration. My professional background so far has been rooted primarily in hospitality, reservations, marketing, administration and entrepreneurship, which shapes how I think about products, operations and users. I do not present this background as experience inside large technology companies: this portfolio shows the work I have actually built, studied, published and improved independently.

React / TypeScriptPython / FastAPISaaSAPIsMachine LearningAI Model Training
View projectsDownload CV (EN)LinkedIn
Portrait of Mateus Nascimento dos Santos
Degree in progressComputer Engineering
Technical focusSoftware · Machine Learning · AI Training

Featured product

ALRYA

Marketing-to-Revenue for hospitality

A multi-tenant SaaS product connecting acquisition, conversations, quotation, reservations and revenue while keeping tenant context, permissions and operational boundaries explicit.

SaaSMulti-tenant
RevenueCommercial context
ProductHospitality workflows
AI SystemsInside product flows
View technical case
ALRYA
Revenue Intelligence
ChatsWhatsApp · Instagram · Site
Olá, quero reservar de 18 a 21/10 para 2 pessoas.
Datas e ocupação identificadas. Posso consultar disponibilidade.
Origem: Meta AdsIntenção: reserva
Conversa vira contexto
CotaçãoPMS + Rate Engine
18–21 out3 noites
Hóspedes2 adultos
TotalR$ —
Disponibilidade→Tarifa→Proposta
Cotação com regra e disponibilidade
RevenueAtribuição comercial
CampanhaMeta AdsReservaAssociadaReceitaRastreada
Reserva retorna para a origem
Anúncio→Conversa→Cotação→Reserva→Receita

Demonstration project · Front-end engineering · WebGL

DINE 3D

Depth with purpose, not decoration.

React, TypeScript and Three.js case with ten independent depth layers, pointer/device motion, typed menu data and a transparent local reservation flow.

Mobile rendering adapts DPR, geometry, particles and frame rate; offscreen WebGL rendering is gated and the canvas never blocks vertical scrolling.

  • 10-layer depth system + Three.js
  • Pointer and Device Orientation
  • Adaptive mobile performance
  • SSR, Zod and progressive enhancement
View technical caseOpen live demo
Plate used in the Dine 3D interactive experienceReact · TypeScript · Three.js · TanStack Start

Professional trajectory

Software shaped by real operations, customers and business context.

Hospitality, administration, marketing and entrepreneurship formed the practical foundation I now bring to software engineering and digital products.

Operations→Product→Software→AI Model Training
Real-world context transformed into software decisions.Customer · Business · Technology · AI
01SOFTWARESoftware · Machine Learning · AI Models
01

2025 — present

Software development and digital products

Software Developer

Own products and independent projects

Web applications, SaaS systems and APIs built alongside work across the AI model lifecycle: data preparation, architecture, training, evaluation, optimization and integration.

Responsibilities
  • Design and implement web applications, APIs and SaaS products.
  • Model data, authentication, permissions and business rules.
  • Prepare data, define architectures, train, evaluate, optimize and integrate AI models into software products.
Competencies
ReactTypeScriptPythonFastAPIMachine LearningAI Model Training
Pousada Passárgada — professional context
HOSPITALITYReal operations + digital product
02

Apr 2025 — present

Pousada Passárgada

Receptionist · Reservations · Digital product collaboration

Hospitality · Reservations · Marketing · Product

Cross-functional work across front desk operations, reservations, guest experience, commercial support, marketing and digital product. The role combines direct customer contact, operational context, performance analysis, campaign planning and digital implementation focused on the booking journey and brand presence.

Responsibilities
  • Front desk, check-in/check-out and guest support.
  • Reservations, commercial communication and follow-up.
  • Marketing analysis and collaboration on website, SEO and booking-journey improvements.
Competencies
Front desk, check-in/check-out and guest supportReservations, commercial communication and follow-upCampaign planning for low season, holidays and international audiencesPerformance analysis across Meta Ads, Google Ads and digital channelsWebsite strategy, UX/UI, SEO and OmniBees booking-engine integrationAlignment between operations, management, marketing partners and digital product
03OPERATIONSCustomer · Business · Execution
03

Previous experience

Administration, hospitality and entrepreneurship

Operations and customer-facing roles

Hospitality · Own business · Administration

Experience in customer service, hospitality operations, administration and running a small business, strengthening my understanding of execution, customer context and commercial decisions.

Responsibilities
  • Customer service and day-to-day operations.
  • Administrative routines and operational organization.
  • Direct responsibility for decisions and execution in a small business.
Competencies
OperationsCustomer serviceAdministrationEntrepreneurship

Machine Learning · AI Engineering

AI model development and training.

I work across the AI model lifecycle: data preparation and curation, architecture definition, training, evaluation, error analysis, optimization and integration into software products.

DataArchitectureTrainingEvaluation
01

Data

Prepare, curate, clean and represent training data for model development.

02

Architecture

Define model structure, training objectives and the experimental strategy.

03

Training

Run training, tune hyperparameters, track loss/checkpoints and compare experiments.

04

Evaluation & deployment

Measure errors and generalization, optimize inference and integrate the trained model into software.

Mateus Nascimento dos Santos
Open toSoftware · Machine Learning · AI Models

Professional contact

Let's turn an idea into a product.

For software, Machine Learning, AI model training and technical collaboration, LinkedIn is the most direct channel. GitHub contains public showcases and development activity.

LinkedIn GitHub
ReactTypeScriptPythonFastAPISaaSAI Model Training