Senior Flutter Developer with strong experience building and scaling cross-platform mobile applications in production environments. I focus on writing maintainable, well-structured code and on solving complex problems around state management, performance, and platform constraints. I’ve worked on consumer-facing apps with real-time features, media-heavy workflows, subscriptions, and monetization, and I enjoy collaborating closely with product and design to turn ambiguous requirements into robust solutions. I value clear ownership, thoughtful architecture, and teams that care about quality without over-engineering.…

Raul Tuozzo

Senior Flutter Developer with strong experience building and scaling cross-platform mobile applications in production environments. I focus on writing maintainable, well-structured code and on solving complex problems around state management, performance, and platform constraints. I’ve worked on consumer-facing apps with real-time features, media-heavy workflows, subscriptions, and monetization, and I enjoy collaborating closely with product and design to turn ambiguous requirements into robust solutions. I value clear ownership, thoughtful architecture, and teams that care about quality without over-engineering.…

Available to hire

Senior Flutter Developer with strong experience building and scaling cross-platform mobile applications in production environments. I focus on writing maintainable, well-structured code and on solving complex problems around state management, performance, and platform constraints.

I’ve worked on consumer-facing apps with real-time features, media-heavy workflows, subscriptions, and monetization, and I enjoy collaborating closely with product and design to turn ambiguous requirements into robust solutions.

I value clear ownership, thoughtful architecture, and teams that care about quality without over-engineering.

See more

Skills

Experience Level

Dart
Expert
Flutter
Expert
PostgreSQL
Expert
Go
Intermediate

Language

Spanish; Castilian
Fluent
English
Advanced

Work Experience

Senior Flutter Engineer at Dots Memories
May 1, 2025 - Present
Senior Flutter Engineer on a large-scale consumer mobile app with social and media-centric features. Collaborated on architecture decisions, complex UI flows, image and video handling, and user-generated content pipelines; worked closely with product, design, and backend teams in a fully remote, cross-functional environment.
Lead Mobile / Full-Stack Engineer (Flutter, Go) at Drool Design Studio
January 1, 2023 - May 20, 2025
Led mobile and backend development across multiple production products for business and consumer users. Served as sole technical lead on confidential Flutter-focused projects, owning frontend (Flutter), backend (Go), data model design, and infrastructure. Built and deployed mobile applications to Google Play and Apple App Store, owning the release lifecycle end-to-end. Integrated Stripe, Firebase Authentication, cloud messaging, and automated email systems; deployed and monitored production services with high availability.
Flutter Engineer at Mara
October 1, 2022 - January 20, 2023
Contributed to the development of a cryptocurrency wallet application supporting multiple digital currencies. Implemented peer-to-peer transfer features and banking integrations. Refactored core components to improve code quality, maintainability, and performance.
Flutter Engineer at Trunk
April 1, 2022 - September 30, 2022
Developed a Flutter application for industrial task management in pre-manufactured housing factories. Built task tracking, progress visualization, and workflow optimization features. Contributed to analytics to improve operational visibility and planning.
Flutter Engineer at Amalytics GmbH
June 1, 2020 - January 31, 2022
Led development of Flutter-based solutions for health tech initiatives. Implemented AI-driven activity tracking and geolocation-based features; designed custom caching systems to significantly reduce backend load. Mentored junior team members and contributed to architectural planning.
CTO / Co-Founder — Mobile Platform at Moti app
January 1, 2024 - Present
Founder and technical owner of a product-focused consumer mobile platform for habit formation and social challenges. Designed and built the mobile application from scratch using Flutter, including architecture, state management, and performance optimizations. Deployed initial backend infrastructure with authentication, data models, and API design; evolved the system as the product scaled. Led analytics, experimentation, and monetization foundations to support product growth and future revenue.

Education

Master in Big Data Science at Universidad de Navarra, Spain
July 1, 2023 - September 30, 2024
Software Engineer at Universidad Católica Andrés Bello
September 1, 2012 - September 30, 2018

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet
    paper Moti

    Moti is a mobile app that lets users create, join, and compete in custom challenges with friends and communities. It turns everyday activities like fitness goals and productivity tasks into competitive, social experiences where participants upload proof of completion, track streaks, earn badges, and climb leaderboards. The app combines challenge creation, notifications, media sharing, and social interaction to motivate users to stay consistent and engaged with their goals while competing with others.

    https://www.twine.net/signin

Hire a App Developer

We have the best app developer experts on Twine. Hire a app developer in Madrid today.