Thomas is available for hire
Hire ThomasThomas Milian
Verified Expert in Engineering
Mobile Developer
Toulouse, France
Toptal member since June 22, 2022
Bio
Thomas is a mobile developer and software engineer with five years of experience working for industry companies and building startups in the mobile sector. As a freelance professional, he now supports companies in mobile and back-end development. Thomas specializes in Flutter for mobile development and building excellent REST APIs with modern technologies.
Portfolio
Intuitiverse
Flutter, Node.js, Express.js, Cloudflare, Google Cloud Platform (GCP)...
Goril.app
Flutter, Android, iOS, Firebase, Python, FastAPI, Fastlane, Leadership...
Freelance
Android, iOS, Flutter, Dart, Node.js, Python, Amazon Web Services (AWS), APIs...
Experience
- Amazon Web Services (AWS) - 5 years
- Android - 5 years
- iOS - 5 years
- REST APIs - 5 years
- Python - 4 years
- UX Design - 4 years
- Flutter - 3 years
- Dart - 2 years
Preferred Environment
JetBrains IDE, Slack, MacOS, Visual Studio
The most amazing...
...thing I've developed is a mobile application for Airbus that embedded a complex artificial intelligence based on computer vision.
Work Experience
CEO
2025 - PRESENT
Intuitiverse
- Built Intuitiverse, a complete AI-powered no-code platform in Flutter that autonomously generates production-ready websites and mobile apps from natural language descriptions, serving entrepreneurs globally with a subscription-based SaaS model.
- Developed an advanced AI prompt engineering framework with specialized system prompts for different contexts (React, Flutter, support), dynamic content injection, and context-aware agent orchestration.
- Implemented sophisticated build pipeline architecture managing Flutter compilation, pub get automation, build_runner code generation, and error recovery with real-time status reporting.
- Designed robust multi-tenant subscription system with credit-based usage tracking, automated billing cycles, plan tier management, and usage optimization across Basic/Core/Pro subscriptions.
- Created advanced real-time synchronization using Supabase WebSocket connections, optimistic UI updates, conflict resolution, and distributed state management across Flutter clients.
- Engineered complex project generation workflow with autonomous task execution, dependency resolution, parallel processing, and intelligent failure recovery mechanisms.
- Built a comprehensive authentication architecture supporting OAuth providers (Apple/Google), secure token management, database-level RLS policies, and session persistence.
- Optimized Flutter performance for production scale by implementing efficient widget rebuilding strategies, memory management, and smooth 60fps animations using flutter_animate.
- Developed sophisticated database schema management with automated migrations, type generation, relationship modeling, and PostgreSQL optimization for multi-tenant architecture.
Technologies: Flutter, Node.js, Express.js, Cloudflare, Google Cloud Platform (GCP), Artificial Intelligence (AI), Next.js, CI/CD Pipelines, REST, GitLab, Desktop App Design, Desktop App Development, SQLite, CTO
CEO & Founder
2022 - PRESENT
Goril.app
- Developed a low-code integrated development environment (IDE) to improve development speed drastically. An IDE was built with Flutter to produce Flutter apps.
- Created the company with my associates and created the brand.
- Managed the development team for our clients and our internal tool.
Technologies: Flutter, Android, iOS, Firebase, Python, FastAPI, Fastlane, Leadership, Software Design, Cross-platform, Mobile Applications, Web Development, CI/CD Pipelines, REST, GitLab, Desktop App Design, Desktop App Development, SQLite, CTO
Software Engineer
2021 - PRESENT
Freelance
- Developed the Flutter version of a mobile application developed in 2019 for Akawan.
- Created new features for Suppairb Vision and improved the existing ones for Akawan.
- Developed the CI/CD for mobile application with GitLab CI/CD and Fastlane to deploy Suppairb on App Store and Google Play.
Technologies: Android, iOS, Flutter, Dart, Node.js, Python, Amazon Web Services (AWS), APIs, App Store, Google Play Store, API Integration, Front-end Development, Front-end, IT Project Management, Architecture, JavaScript, Mobile, Firebase, Riverpod, Mobile Development, Full-stack, Project Management, Technical Leadership, Mobile Apps, Leadership, Software Design, System Architecture, Cross-platform, Mobile Applications, Live Chat, Web Development, CI/CD Pipelines, REST, GitLab, Desktop App Design, Desktop App Development, SQLite, CTO, React Native
Founder
2020 - 2022
LeRadis
- Defined the front end, network architecture, and back-end microservices.
- Structured and deployed the cloud network infrastructure to host back-end services.
- Created a Flutter application from scratch that supports Stripe payment through card number, Google Pay, and Apple Pay.
- Developed the REST API with FastAPI (Python) from scratch, including authentication systems.
Technologies: Flutter, Python, Dart, Stripe, Stripe API, Stripe Connect API, Amazon Web Services (AWS), REST APIs, APIs, Architecture, Mobile, Riverpod, Mobile Development, Full-stack, Project Management, Technical Leadership, Mobile Apps, Leadership, Software Design, System Architecture, Cross-platform, Mobile Applications, Live Chat, Web Development, CI/CD Pipelines, REST, GitLab, Desktop App Design, Desktop App Development, SQLite
Lead Mobile Developer
2020 - 2021
Skilleos
- Defined the architecture and best practices to build a mobile application version of the Skilleos.com website.
- Led the mobile developers and contributed to the Flutter application development.
- Developed the CI/CD for mobile application with GitLab CI/CD and Fastlane.
- Tracked and fixed bugs in alpha testing with 100+ testers.
- Developed CI/CD for Node.js back end with GitLab CI/CD and AWS CodeDeploy and CodePipeline.
Technologies: Android, iOS, Flutter, Dart, Amazon Web Services (AWS), Fastlane, GitLab CI/CD, APIs, App Store, Google Play Store, API Integration, Front-end Development, Front-end, IT Project Management, Architecture, JavaScript, Mobile, Riverpod, Mobile Development, Full-stack, Project Management, Technical Leadership, Mobile Apps, Leadership, Software Design, System Architecture, Cross-platform, Mobile Applications, Live Chat, Web Development, CI/CD Pipelines, REST, GitLab, Desktop App Design, Desktop App Development, SQLite
Software Engineer
2019 - 2020
Akawan
- Built an Android application called Suppairb, allowing flight simulation errors to be detected and reported to Airbus support by analyzing cockpit dashboard videos.
- Developed Suppairb Vision, a computer vision framework to detect gauges on cockpit dashboard videos and extract useful information with OCR to reproduce airplane indicators time series.
- Contributed to developing a native iOS and Android application—Ambicheck—to detect aircraft door seal failures by acoustic analysis for Airbus.
- Developed an iOS framework to authenticate users through facial recognition and identity document scanning.
Technologies: Android, iOS, Swift, Kotlin, PHP, Python, Amazon Web Services (AWS), Computer Vision, Deep Learning, APIs, App Store, Google Play Store, API Integration, Front-end Development, Front-end, IT Project Management, Flutter, Architecture, Mobile, Mobile Development, Full-stack, Mobile Apps, Leadership, Software Design, System Architecture, Cross-platform, Mobile Applications, Live Chat, Web Development, CI/CD Pipelines, REST, GitLab, Desktop App Design, Desktop App Development, SQLite
Founder
2018 - 2019
Dounny
- Defined the back-end microservices and front-end and network architecture.
- Developed an iOS application from scratch in Swift following the VIPER architecture.
- Created an Android application from scratch in Kotlin with MVVM architecture.
- Developed the REST API in PHP from scratch, including authentication systems.
- Structured and deployed the cloud network infrastructure to host the back-end services.
Technologies: Android, iOS, PHP, Amazon Web Services (AWS), Swift, Kotlin, APIs, Stripe Payments, App Store, Google Play Store, API Integration, Front-end Development, Front-end, IT Project Management, Architecture, Mobile, Mobile Development, Full-stack, Project Management, Technical Leadership, Mobile Apps, Software Design, System Architecture, Mobile Applications, Live Chat, CI/CD Pipelines, REST, GitLab, Desktop App Design, SQLite
Mobile Engineer
2018 - 2019
Adentis
- Developed a chat messaging feature for an Android application, including text, image, video, and sound messages.
- Refactored the website and UI/UX design of the mobile application.
- Developed a Wear OS app that embedded the main features of an existing Android application.
- Created a push-to-talk feature for an Android application to communicate instantly with other users.
- Developed a dynamic form feature for an Android application to allow building forms dynamically according to APIs data.
Technologies: Kotlin, Java, Android, Mobile, UI Design, UX Design, Google Play Store, API Integration, Front-end Development, Front-end, Mobile Development, Full-stack, Mobile Apps, Software Design, Mobile Applications, CI/CD Pipelines, REST, GitLab, SQLite
Experience
Unruffled
http://github.com/tmilian/unruffledUnruffled is a lightweight and customizable HTTP client that allows you to easily create an offline-first Flutter app. It supports local data encryption, query builders, connectivity errors management, and retries.
Suppairb
A Flutter mobile application that allows detecting and reporting flight simulation errors to Airbus support by analyzing dashboard videos.
I was the leading full-stack developer on this project, starting from scratch.
I was the leading full-stack developer on this project, starting from scratch.
Ambicheck
An iOS and Android application to detect aircraft door seal failures by acoustic analysis.
I was the mobile developer improving the sound analysis on both iOS (Swift) and Android (Kotlin) platforms.
I was the mobile developer improving the sound analysis on both iOS (Swift) and Android (Kotlin) platforms.
Education
2014 - 2017
Engineer's Degree in Civil Engineering
UPSSITECH - Toulouse, France
Certifications
FEBRUARY 2020 - PRESENT
Scrum Master
Scrum.org
Skills
Libraries/APIs
REST APIs, Node.js, Stripe, Stripe API, Stripe Connect API
Tools
GitLab, Slack, Visual Studio, Fastlane, GitLab CI/CD
Languages
Dart, Python, Kotlin, Java, Swift, PHP, JavaScript
Frameworks
Flutter, React Native, Riverpod, Express.js, Next.js
Paradigms
Mobile Development, Cross-platform, REST, Desktop App Development, UX Design, UI Design
Platforms
Android, Mobile, iOS, Amazon Web Services (AWS), Firebase, MacOS, Google Cloud Platform (GCP)
Storage
SQLite
Industry Expertise
Project Management
Other
APIs, App Store, Google Play Store, API Integration, Front-end Development, Front-end, IT Project Management, Architecture, Full-stack, Technical Leadership, Mobile Apps, Leadership, Software Design, Mobile Applications, Live Chat, CI/CD Pipelines, Desktop App Design, CTO, Stripe Payments, System Architecture, Web Development, Civil Engineering, Scrum Master, JetBrains IDE, Computer Vision, Deep Learning, FastAPI, Cloudflare, Artificial Intelligence (AI)
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