Freelancer profile translated to English.
Back to original languageAbout Alexandre
I've been developing mobile apps since 2016 — first in iOS, then Android, then Flutter when I wanted to stop coding the same feature twice.
8 years. 86 missions delivered. Apps in production at Baraka (YC S21, Middle East fintech), Pony (micro-mobility, 8 cities), and a dozen early-stage startups where I was often the only mobile dev in the room.
What I do concretely:
→ iOS — Swift, SwiftUI, UIKit, RxSwift, MVVM, Clean Architecture
→ Android — Kotlin, RxJava
→ Flutter / Dart — cross-platform, monetization, App Store & Play Store
→ Firebase, Supabase, REST APIs
→ BDD Testing
I work in agentic coding mode — Claude Code and Copilot are part of my daily workflow. I lead, I validate, I deliver faster. It's my way of staying competitive as a solo dev.
Based in Portugal, fully remote. I mainly work with startups and scale-ups that need a senior dev capable of taking over an existing codebase, understanding the product, and delivering.
Available for remote freelance missions — let's talk.
French
Native or bilingual
Portuguese
Native or bilingual
English
Fluent
Spanish
Conversational
Remote only
Primarily works remotely
Experience
- BarakaMobile Engineer — iOS · Android · FlutterBANKING AND INSURANCEOctober 2021 - Today (4 years and 8 months)Paris, FranceMobile Engineer (iOS · Android · Flutter) at a YC S21 fintech — investment app deployed in the Middle East (UAE, Saudi Arabia, Kuwait, Qatar, Bahrain, Oman).- iOS Development: Swift, MVVM, RxSwift, UIKit- Android Development: Kotlin- Flutter Development: cross-platform features- Bi-weekly delivery cycles, code review, architecture decisions- Agentic coding workflow: Claude Code, Copilot integrated daily- Long-term mission of 4.5 yearsStack: Swift, Kotlin, Flutter, Dart, Jira, Figma
- Tiime LabAndroid DeveloperSOFTWARE PUBLISHINGSeptember 2021 - December 2021 (3 months)Paris, FranceTook over two existing Android codebases (Tiime Accounts + Tiime Invoice) for a French fintech serving accountants.→ Development of new features and reduction of technical debt→ Reactive programming — Kotlin, RxJava, MVVM→ Two applications in production on the Play StoreStack: Kotlin, RxJava, MVVM, Retrofit, Jira, GitHub
- MoonzoMobile Engineer — iOS | CTOSOCIAL NETWORKSSeptember 2020 - September 2021 (1 year)Paris, FranceMobile technical lead and CTO for a social media app (astrological compatibility + friendly dating).→ Full development of V1 iOS from scratch — Swift, Firebase, PostgreSQL→ Architecture and development of the entire back-end→ Definition of the mobile technical roadmap→ Technical lead for mobile recruitment interviews→ Communication and technical interviews 100% in EnglishStack: Swift, Firebase, PostgreSQL, SQL, Scrum, GitHub, Figma
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Education
- EFREI Engineering Degree / Information Systems Architecture Master / Business Intelligence SpecializationEFREI2015La finalité de la Majeure Business Intelligence est d’apporter une aide à la décision et d’offrir la possibilité à un décideur d’avoir une vue d’ensemble de l’activité traitée ainsi qu’une visibilité sur l’avenir et les évolutions potentielles du marché. La BI est l’informatique au service des décideurs et des dirigeants des entreprises. Elle s’insère dans l’architecture plus large du système d’information. Tous les enseignements de la majeure « Business Intelligence » sont dispensés en anglais. Les compétences visées à la fin de la formation sont de : • savoir concevoir, configurer et déployer des systèmes d’aide à la décision et des systèmes de gestion des connaissances. • exploiter les données dans l’entreprise afin de proposer une stratégie décisionnelle.