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Joseph Marrero

Full-Stack Engineer

// puerto rico, pr · UTC-4

Hello! My name is Joseph.

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profile sourced from GitHub

Scouting report

Puerto Rican developer building Python data pipelines and a personal web portfolio

assessed from open-source footprint

Senior
50signal

A Puerto Rico-based developer focused on Python and web work, with a small but tidy set of six original repos. The standout is 'World Data Pipeline', an EL pipeline moving data from an on-prem MySQL database to AWS S3, alongside his personal portfolio site. Low abandoned ratio (~0.17) and steady solo commits suggest follow-through, though the portfolio is early-stage with no stars or external contributions yet.

Authorship & open source

Solo authorwrote 100% of commits on jmo-developer
25 merged PRs31 commits / yr1 reviews863 private contributions / yr

What they build

Frontend32%
Backend28%
Data / ML20%
Systems20%

Industry experience

  • Web & CMS
  • Fintech & Payments
  • E-commerce & Retail

Signal breakdown

Originality79
Impact16
Consistency86
Polish33
Stars

0

Original repos

6

0% forks

Followers

1

On GitHub

3.9 yr

Live demos

1

Activity

Active

17% stale

Strengths

  • Verified author — wrote 100% of commits on jmo-developer
  • 25 merged pull requests
  • Original builder — 6 of their own repositories
  • Consistently active, low abandonment
  • Frontend focus with Backend
  • Domain experience in Web & CMS & Fintech & Payments
  • Core stack: Python, HTML, JavaScript, C++