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Juan Polanco

Full-Stack Engineer

// dominican republic, do · UTC-4

Building in the open from Dominican Republic. Full-Stack Engineer.

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profile sourced from GitHub

Scouting report

Dominican full-stack dev leaning into data/ML with Python and Jupyter

assessed from open-source footprint

Staff
55signal

Long-tenured Dominican developer with a data/ML tilt, working in Jupyter, Python, and JavaScript. Notable originals include a Machine Learning Nanodegree capstone predicting US bond prices and a LangGraph-based RAG agent using LLMs. Reach is modest (1 star, 14 followers) and the abandoned ratio is 75%, so the value here is demonstrated ML/AI coursework and experimentation rather than maintained, widely-used products.

Authorship & open source

Solo authorwrote 100% of commits on langgraph-rag-agent
15 merged PRs12 commits / yr1 external project3 reviews201 private contributions / yr

Contributes to

  • Fox658/Expense_tracker_django_rest0

What they build

Frontend37%
Data / ML34%
Backend27%

Industry experience

  • Education & EdTech
  • Data, ML & AI
  • E-commerce & Retail

Signal breakdown

Originality78
Impact38
Consistency71
Polish38
Stars

1

top repo 1

Original repos

20

33% forks

Followers

14

On GitHub

11.8 yr

Live demos

0

Activity

Active

75% stale

Strengths

  • Verified author — wrote 100% of commits on langgraph-rag-agent
  • 15 merged pull requests
  • Original builder — 20 of their own repositories
  • Frontend focus with Data / ML
  • Domain experience in Education & EdTech & Data, ML & AI
  • Core stack: Jupyter, JavaScript, HTML, Python