Gabriel Mustiere
Gabriel Mustiere
Portrait of Gabriel Mustiere
Freelance
CTO

Tech · Business · AI. Nantes — remote.

Background

Freelance
CTO & lead.

14 years in tech, CTO since 2017. I built the SaaS subsidiary Progicar (Groupe GEMY) from zero to more than 25 people, co-founded Passion Barbecue on Sylius, and currently support Anytime on PSD2/SCA compliance via WebAuthn (passkeys, biometrics, security keys).

My playground: building SaaS and e-commerce products from scratch, then scaling them. I work on long commitments, audits, fractional CTO seats, or founder sparring.

Experience
14 years · CTO since 2017
Roles
CTO · Lead · IC
Based in
Nantes · remote
Availability
Q3 2026
§ 01

Blog posts

Notes on tech, business and AI. No schedule — only when I have something to say.

Excerpt — eval harness
// tiny scoring loop
for (const c of suite) {
  const out = await model.run(c.input)
  const s   = score(out, c.expected)
  yield { id: c.id, score: s }
}
§ 02

Side projects

§ 03

Contact

Missions, audits, sparring: a single email is enough. I reply within 48h, never to cold sales.

GitHub
@gmustiere
§ 04 · Document

Resume (PDF)

Last updated: April 2026 · 2 pages · 180 kB

Download .pdf ↓