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Juan Abimael Santos Castillo

Data / ML Engineer

// dominican republic, do · UTC-4

Building in the open from Dominican Republic. Data / ML Engineer.

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profile sourced from GitHub

Scouting report

Dominican Rust engineer building real anomaly-detection and systems tooling

assessed from open-source footprint

Staff
73signal

A Dominican backend/systems engineer working mainly in Rust, with the strongest original project in this batch: anomaly-grid, a variable-order Markov-chain sequence anomaly detector (7 stars). Very low abandonment (8%), top-tier consistency, a deployed project and a personal site back up the picture. About half the repos are forks, so lead with the authored systems work, but this is a substantive, focused portfolio.

Authorship & open source

Solo authorwrote 100% of commits on anomaly-grid
3 merged PRs444 commits / yr3 external projects338 private contributions / yr

Contributes to

  • toeverything/AFFiNE68,910★
  • tokio-rs/axum26,085★
  • lipanski/mockito777★

What they build

Backend46%
Systems21%
Frontend20%
Data / ML8%
DevOps5%

Industry experience

  • Developer Tools
  • Fintech & Payments
  • Productivity & SaaS

Signal breakdown

Originality55
Impact87
Consistency100
Polish40
Stars

10

top repo 7

Original repos

13

52% forks

Followers

4

On GitHub

7.8 yr

Live demos

1

Activity

Active

8% stale

Strengths

  • Verified author — wrote 100% of commits on anomaly-grid
  • Open-source contributor — 3 external projects incl. toeverything/AFFiNE (68,910★)
  • 444 commits in the past year
  • Consistently active, low abandonment
  • Backend focus with Systems
  • Domain experience in Developer Tools & Fintech & Payments
  • Core stack: Rust, Python, Lua, PowerShell

About

Data / ML Engineer from Dominican Republic, active on GitHub with 27 public repositories and 4 followers. Explore the work and reach out on GitHub.

Skills

  • Rust
  • Python
  • Rust Lang
  • TypeScript
  • PowerShell
  • Lua
  • Postgres
  • Cli

Featured work

Anomaly Grid

Sequential pattern analysis through variable-order Markov chains. Built for detecting deviations in finite-alphabet sequences.

  • Rust
  • Algorithm
  • Algorithms
  • Algorithms And Data Structures
  • Anomaly Detection

by Juan Abimael Santos Castillo

Planning With Files Qwen

A Qwen Code skill that transforms your workflow to use persistent markdown files for planning, progress tracking, and knowledge storage currently set…

  • PowerShell

by Juan Abimael Santos Castillo

watchtower

Real time wallets monitor tracking ERC-20 transfers, get notifs through Telegram/console when transfers go beyond configurable threshold

  • Rust
  • Automation
  • Blockchain
  • Cryptocurrency
  • Erc20

by Juan Abimael Santos Castillo

Rs Ach

ACH (Automated Clearing House) file parser for Rust following the NACHA (National Automated Clearing House Association) specifications.

  • Rust
  • Ach
  • Fintech
  • Nacha
  • Nacha Ach

by Juan Abimael Santos Castillo

Bit Client Rs

BitTorrent client written in Rust.

  • Rust
  • Bittorent Client
  • Networking
  • Rust Lang

by Juan Abimael Santos Castillo

nvimsetup

Personal Neovim setup

  • Lua
  • Neovim
  • Neovim Config
  • Neovim Configuration
  • Neovim Dotfiles

by Juan Abimael Santos Castillo