# Rouk > Rouk is a one-person technology studio in Tallinn, Estonia — "the CTO for companies that don't have one yet." Founded and operated by Sander Rõuk: a senior builder (full-stack, mobile, DevOps) and fractional CTO with real shipping experience in HIPAA, SOC 2, and GDPR-scope environments. ## Services - **MVP & Product Build** — Production product from spec or design, shipped in weeks. - **Fractional CTO** — Part-time embedded engineering leadership. - **Compliance & Security** — HIPAA / SOC 2 / GDPR-ready systems and audit prep. - **DevOps & Cloud** — CI/CD, monitoring, cost control. - **Mobile Apps** — iOS and Android, React Native or native. - **Technical Due Diligence** — Code, security, and team review for investors/acquirers. - **Engineering Hiring** — Define, source, technical-screen, close. ## Contact - Email: hello@rouk.io - Phone: +372 533 23858 - Form: https://rouk.io/#contact ## Key pages - [Homepage](https://rouk.io/): full services, process, FAQ, contact. - [Compliance](https://rouk.io/compliance): HIPAA, SOC 2, and GDPR — what I do, what I've shipped, and what you actually get. - [Privacy](https://rouk.io/privacy): data handling notice. ## About the operator Sander Rõuk is the founder and sole engineer. A decade of building software across founder projects and engineering leadership. Based in Tallinn (Europe/Tallinn, UTC+2/+3); works globally. ## Legal entity Rouk OÜ · Tallinn, Estonia · Reg. 14694236 · VAT EE102148462