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Raul TuozzoRT

Raul Tuozzo

Senior Flutter Engineer

€300/day
Madrid, ES
8-15 years

Average response time: 1 hour

About Raul

Senior mobile engineer with 5+ years building and shipping Flutter apps used by real users at scale. I currently work on a high-traffic consumer product and have co-founded my own app from zero to launch, so I understand the full lifecycle: architecting for growth, monetization, and long-term maintainability, not just writing features.

I handle end-to-end Flutter and Dart development for iOS and Android, from architecture through to store release. I build with Clean Architecture using Bloc/Cubit or Riverpod, so codebases stay testable as they grow, and I integrate backends with Go and Firebase. On the business side, I've shipped in-app purchases and subscriptions with RevenueCat and StoreKit, and set up analytics, attribution, and deep linking with tools like GA4. I favor pragmatic delivery and reliable software over over-engineering.

Whether you need a new app built, an existing one improved, or a tricky integration solved, I can plug in quickly and deliver. Based in Madrid, working with clients across Spain and Europe.
  • Spanish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Dots Memories
    Senior Flutter Engineer
    May 2025 - Today (1 year and 2 months)
    Spain
    Consumer mobile app, ~350K monthly active users
    Lead engineer on payments and subscription flows, owning architecture decisions and shipping pricing and paywall experiments. Co-led architectural refactors across core product flows, improving maintainability and unblocking faster feature delivery in a large scale Flutter codebase. Build complex Bloc/Cubit flows integrated with Firebase Auth and Remote Config for staged rollouts and configuration management at 350K MAU scale. Deliver media-heavy user flows in production, coordinating releases across a cross-functional team.
    Flutter Firebase Dart artificial intelligence Git
  • Moti
    Lead Flutter Engineer / Co-Founder
    January 2024 - Today (2 years and 6 months)
    United Kingdom
    Consumer social app, shipped to App Store & Google Play
    Sole technical founder: designed and built the full stack solo — Flutter app, Go backend APIs, authentication, database design, and infrastructure — later leading the transition to a Ruby/PostgreSQL backend. Shipped the core product end-to-end: challenges, streaks, gamification, community interactions, deep linking, and push notifications. Owned analytics and attribution across Mixpanel, AppsFlyer, CleverTap, and Meta to drive product iteration and user acquisition.
    Flutter Dart Firebase Git artificial intelligence
  • Drool Design Studio
    Lead Mobile / Full-Stack Engineer
    January 2023 - May 2025 (2 years and 4 months)
    United Kingdom
    Technical lead across 2–3 client products, owning architecture, infrastructure, and delivery end-to-end in lean 2–3 person teams. Architected Flutter apps with Riverpod and Clean Architecture; built Go backend services and owned infrastructure, deployment, authentication, and Firebase push notifications. Delivered payments breadth across products: Stripe web subscriptions with connected-account flows, app-store in-app purchases, and custom payment integrations. Shipped across mobile and web (Flutter + React), managing App Store and Google Play releases end-to-end.
    Flutter Dart Git React.js GO

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Education

  • MSc Big Data
    Universidad de Navarra
    MSc Big Data
  • Software Engineering
    Universidad Católica Andrés Bello
    Software Engineering

Skill set

Categories