Hi, I'm Tomas Radvansky

Remote-only Fractional CTO specializing in Flutter, Firebase, and Node.js (TS). I build scalable mobile apps, solid architectures, and CI/CD pipelines for greenfield startups. TDD-first, GCP-native, and passionate about scientific and meaningful products.

About me

• 🇸🇰 Slovak living in Northland, New Zealand (PR)
• Fractional / Temp CTO for greenfield startups
• TDD-first, writing unit & integration tests
• Remote-only (no office, no relocation)
• GCP + Firebase + Node.js (TS) Cloud Functions
• CI/CD with GitHub Actions
• Love meaningful, science-oriented projects
• Admin for Firebase Support Slack

Tech I use daily

Featured products

Backyard Hunt

QR-code based treasure/scavenger hunts for kids, built with Flutter and Firebase.

🔗 https://backyard-hunt.com

Click Defeat

Idle, competitive button-smashing time trials for couples/friends.

🔗 https://click-defeat.com

What I do as a Fractional CTO

• Design mobile + backend greenfield stacks (Flutter + Firebase + Functions)
• Establish quality gates, testing strategies, and review practices
• Build CI/CD pipelines (build, test, release) with GitHub Actions
• Architect secure multi-environment Firebase setups
• Mentor teams on architecture, clarity, and delivery cadence

Typical architecture

graph LR;
    A[Flutter App] --> B[Firebase Auth];
    A --> C[Firestore];
    A --> D[Storage];
    C --> E[Cloud Functions];
    E --> F[GCP Services];
    G[GitHub Actions] --> A;
    G --> E;
    G --> C;