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Sona Tau Estrada Rivera

Full-Stack Engineer

// puerto rico, pr · UTC-4

¡Pan, Trans, Compsci & Boricua!

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profile sourced from GitHub

Scouting report

Systems hacker living in C++/Rust/Nix — research-grade originality

assessed from open-source footprint

Senior
66signal

Sona is a deep systems and low-level tinkerer: 24 original repos weighted toward C++, Rust, C and Nix, with standout originality (89) and rock-steady consistency (92) over a 6-year account. The work is genuinely curious rather than commercial — e.g. 'costas', a research repo on Costas arrays and permutation matrices — so stars are tiny (max 2) and nothing is deployed. Best fit for a systems, compilers, or research-adjacent team that values raw fundamentals over polish.

Authorship & open source

Solo authorwrote 100% of commits on costas
9 merged PRs356 commits / yr

What they build

Systems49%
Frontend23%
Data / ML15%
Backend12%

Industry experience

  • Developer Tools
  • Productivity & SaaS
  • Social & Community

Signal breakdown

Originality95
Impact49
Consistency100
Polish18
Stars

5

top repo 2

Original repos

24

15% forks

Followers

11

On GitHub

6 yr

Live demos

0

Activity

Active

21% stale

Strengths

  • Verified author — wrote 100% of commits on costas
  • 356 commits in the past year
  • Original builder — 24 of their own repositories
  • Consistently active, low abandonment
  • Systems focus with Frontend
  • Domain experience in Developer Tools & Productivity & SaaS
  • Core stack: C++, HTML, Python, Rust