Freelancer profile translated to English.
Back to original languageAbout Djibril
Senior mobile developer specialized in Android since 2015, I work in demanding environments where quality, performance, and scalability are non-negotiable. I assist my clients in creating or redesigning applications from scratch, implementing modern architectures (Clean Architecture, Compose, modularization), and accelerating delivery of critical features.
Accustomed to high-stakes projects, I combine technical expertise, autonomy, and product sense to deliver quickly and cleanly. An innovator by nature, I also designed a connected Arduino/Android car, demonstrating an ability to transform ambitious ideas into operational solutions.
Available for premium missions: product creation, technical redesign, rapid scaling.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- FreelanceAndroid DeveloperRETAIL (LARGE RETAILERS)January 2023 - Today (3 years and 5 months)Lille, FranceParisSupport intervention on several strategic Android products:• 5GMark – La Poste Mobile: contribution to application evolution, network flow optimization, and performance monitoring stabilization.• Decathlon Basketball Play & Decathlon Second Life: development of key features in Kotlin/Compose, restructuring of existing modules, technical compliance, and code quality improvement.• Implementation of MVVM / Clean Architecture, data management via Room, Flow, Coroutine, network integration via Retrofit.• Setup and maintenance of unit tests (JUnit, MockK), participation in technical breakdown and functional scoping.• Backend For Frontend (BFF) tasks in Spring Boot: creation and exposure of REST services, test automation via Karate.• Active contribution to overall product quality: code review, structural refactoring, continuous improvement proposals.
- WeSenseAndroid DeveloperHEALTH AND WELLNESSMarch 2022 - January 2023 (10 months)Dijon, FranceDevelopment and maintenance of Android applications dedicated to the healthcare sector:• Design and implementation of critical features in Kotlin under RIBs architecture.• Integration of technical modules (Room, Dagger2, Retrofit, Coroutine).• Setup of automated tests (JUnit, Mockito) ensuring regulatory compliance of deliverables.• Performance improvement and reduction of technical debt through targeted refactoring.• Coordination with QA, PO, and backend teams to ensure reliable delivery in a regulated context.
- XPEHOMobile Developer Consultant (Native Android, IOS & Flutter)CIVIL ENGINEERINGJune 2021 - February 2022 (8 months)Lille, FranceIntervention on the creation of the Solex mobile application (Android & iOS):• Full development in Dart/Flutter, API integration, UI/UX optimization.• Setup of unit tests with flutter_test and pipeline automation.• Analysis of user feedback, bug fixing, application stability improvement.• Participation in the ADEO Leroy Merlin mobile strategy and technical support for internal teams.
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Education
- Bachelor's Degree, Computer ScienceUniversité Paris-Est Créteil (UPEC)Licence, Informatique
- 3rd Year Bachelor's Degree, Computer ScienceUAHB (Université Amadou Hampathé Bâ)2016Licence 3, Informatique