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Melvin Josue Castillo

Full-Stack Engineer

// dominican republic, do · UTC-4

Full Stack Developer, 24 years experience, c#, sql server, angular, EF, typescript, docker, pl…

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profile sourced from GitHub

Scouting report

Veteran enterprise .NET/SQL builder, broad domain systems, now dormant

assessed from open-source footprint

Mid
40signal

Melvin's twenty-one repos show the most real-world breadth in this cohort: a disability-services management system (SIGES), a Dominican stock-market index tool, and health and government web-service integrations across C#, T-SQL, Angular, TypeScript and JavaScript. He describes himself as a long-experienced full-stack developer, and the project domains are consistent with serious enterprise work — though seniority is self-stated, not verified by stars (one) or external open-source contributions (none). The clear caveat is dormancy: zero commits last year and a 0.9 abandonment rate. Strong candidate to interview on enterprise .NET/SQL depth, with public activity that has gone quiet.

Authorship & open source

Solo authorwrote 100% of commits on SIGES_app
2 merged PRs0 commits / yr

What they build

Frontend48%
Backend38%
Game Dev11%

Industry experience

  • Fintech & Payments
  • Health & Wellness
  • Social & Community

Signal breakdown

Originality100
Impact15
Consistency31
Polish15
Stars

1

top repo 1

Original repos

21

0% forks

Followers

0

On GitHub

8.6 yr

Live demos

0

Activity

Quiet

90% stale

Strengths

  • Verified author — wrote 100% of commits on SIGES_app
  • Original builder — 21 of their own repositories
  • Frontend focus with Backend
  • Domain experience in Fintech & Payments & Health & Wellness
  • Core stack: JavaScript, C#, TSQL, HTML