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Julien Verfaillie

Full-Stack Engineer

// guaynabo, pr · UTC-4

Building in the open from Puerto Rico. Full-Stack Engineer.

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profile sourced from GitHub

Scouting report

Android/Kotlin engineer with real architecture vocabulary, currently dormant

assessed from open-source footprint

Senior
30signal

Julien's projects show the most technical substance in this batch: a weather demo built with Dagger2, Retrofit, RxJava and an MVP architecture, a Kotlin dashboard pulling GTD tasks from Notion, and a force-directed graph drawing library. The stack (Kotlin, Java, JavaScript) and patterns suggest genuine mobile-engineering exposure on a 15-year-old account. The caveats are real, though: zero stars, nothing currently deployed, no commits in the last year, and no verified external open-source contributions. Solid foundations on paper, but the recent activity signal is flat.

Authorship & open source

Primary authorwrote 92% of commits on sfacs.github.io
13 merged PRs0 commits / yr

What they build

Frontend40%
Backend38%
Mobile22%

Industry experience

  • Climate & Sustainability
  • Developer Tools

Signal breakdown

Originality49
Impact19
Consistency16
Polish40
Stars

0

Original repos

4

43% forks

Followers

4

On GitHub

15.2 yr

Live demos

0

Activity

Quiet

100% stale

Strengths

  • Verified author — wrote 92% of commits on sfacs.github.io
  • 13 merged pull requests
  • Frontend focus with Backend
  • Domain experience in Climate & Sustainability & Developer Tools
  • Core stack: Kotlin, HTML, Java, JavaScript

About

Full-Stack Engineer from Puerto Rico, active on GitHub with 7 public repositories and 4 followers. Explore the work and reach out on GitHub.

Skills

  • Kotlin
  • HTML
  • Java
  • JavaScript

Featured work