Arthur Santos

Software Engineer

I turn messy data and repetitive work into pipelines, automations and models that run themselves.

About

I'm a software engineer at Moises, where I build the systems behind growth and marketing: a real-time social media observability pipeline on Google Cloud, CRM automations that made the influencer team 60% more efficient, and a lead-scoring model that helped close 200+ contracts in a quarter.

I joined Moises by winning their chord-recognition challenge; that algorithm went on to ship in an app with 50M+ users. I hold a BS in Computer Science from UFPE, and outside work I like data journalism, augmented reality and brain-computer interfaces.

Experience

  1. 2022 — Present

    Software Engineer · Moises

    • Built a microservices social media observability pipeline (Python, Terraform, Cloud Run, Pub/Sub, BigQuery) with real-time metrics across platforms.
    • Implemented CRM and automations (Salesforce, Apex, Apps Script, Python) that raised influencer-marketing efficiency by 60%+.
    • Created a lead-scoring ML model (PyTorch, scraping) behind 200+ closed contracts in one quarter; maintain a 10K+ lead database.
    • Set up GCP hosting and GitHub Actions continuous deployment for Flask-triggered CRM services.
    • Python
    • Terraform
    • GCP
    • BigQuery
    • Salesforce
    • PyTorch
    • CI/CD
  2. 2021 — 2022

    Software Engineer Intern · Moises

    Hired after placing 1st in a chord-recognition challenge. Kept improving the algorithm (Python, ML, music identification, React front-end) until it reached production in an app with 50M+ users.

    • Python
    • Machine Learning
    • React
    • Web Scraping
  3. 2017 — 2022

    PIBITI Researcher · UFPE

    Researched and published on software requirements engineering for startups and IoT projects.

    • Requirements Engineering
    • Research
  4. 2017 — 2018

    Junior Backend Engineer · Accenture

    Built Bash automations for daily health checks of client projects; reviewed and documented legacy Java code.

    • Bash
    • Unix
    • Java
  5. Jan — Feb 2017

    Summer Job Intern · CESAR

    In six weeks, learned Android and shipped a real-time guided city tour for EPSON's Moverio AR glasses using OpenCV image recognition and GPS.

    • Java
    • Android
    • OpenCV

View full résumé

Projects

  • Ranking Político dashboard

    Ranking Político

    Ranks Brazil's 594 senators and federal deputies using only official open data: attendance, votes, laws, committee work and expenses. Places each one on a 2D political map built from how they actually vote.

    • Python
    • Open Data
    • Data Viz
    • JavaScript
  • Chord.ls chord recognition

    Chord.ls

    Winning entry of the Moises.ai challenge: detects the chords at every timestamp of an audio file. Later adapted into production for 50M+ users.

    • Python
    • Machine Learning
    • Audio
  • EEG signal classifier

    EEG Mental State Classifier

    Classifies mental states from EEG signals for brain-computer interfaces, with 98.86% accuracy on eye-state detection and an interactive dashboard.

    • Python
    • scikit-learn
    • Django
    • BCI
  • E-Turismo AR glasses tour

    E-Turismo

    Guided tour of Recife for EPSON Moverio AR glasses: recognizes landmarks through the glasses' camera and tells their history.

    • Java
    • Android
    • ARToolkit
    • OpenCV
  • AR Library book recognition

    AR Library

    Android prototype that recognizes book covers in augmented reality and overlays information about the book.

    • Java
    • Android
    • ARToolkit

View full project archive

Skills

  • Python
  • TypeScript
  • JavaScript
  • SQL
  • Terraform
  • Google Cloud (Cloud Run, Pub/Sub)
  • BigQuery
  • PostgreSQL
  • Docker
  • CI/CD · GitHub Actions
  • FastAPI
  • Flask
  • REST APIs
  • Salesforce / Apex
  • Google Apps Script
  • Machine Learning · PyTorch
  • Data Analysis
  • Web Scraping
  • AI Integration
  • Prompt Engineering
  • Automation Engineering

Portuguese (native) · English (fluent) · Spanish, Italian (elementary)