Jean-François Dagnogo

– July 2023 - Present: Tech Lead of a 4-Person Team. I oversee the design and delivery of projects related to our product team. – My responsibilities include managing the product search, discovery, and shopping cart features of the app. I ensure smooth sprint execution by monitoring the work of other Android developers daily. – I mentor a junior developer, helping them grow their skills effectively. – Additionally, I collaborate closely with two product managers and designers to prepare well-defined tasks for upcoming sprints. – June 2022 - July 2023: Senior Developer. I joined Carrefour for my expertise in Compose and successfully delivered a production-ready app by the end of 2022. – I was responsible for implementing the E-Commerce section of the Carrefour app, covering everything from product details to order placement. – I worked as part of an agile team of three developers.

– Implementation of new functionalities and redesign of the old application. – Creation of the new architecture with mvvm and flow. We even started to integrate jetpack Compose in one module. – Helping juniors with Android guidelines and best practices. – Created the first A/B test of the company. – Performance improvement (optimising network call and caching). – Maintaining a 99.5% crash free. – Tracking with Firebase events and working closely with an UX researcher. – Unit tests. – Continous integration with Team Foundation Server (TFS). – I interviewed 5 people in order to find my replacement at the end of my mission and did the onboarding of the new employee in order to make sure that will still be effective even after my mission. – At the end of my mission, Android catches the delay and even did the A/B test before IOS. We also have a better test coverage than IOS. – Technologies: Kotlin Flow, Mvvm. – API: Rest, Firebase. – Android Framework: Androidx, Mockito.

– Context: Witick is a startup that wants to create an e-tickets for metro and bus in France. The code was made by one of the owners of the company. It was in good shape, but in Java with an old architecture. They also wanted to create the version 3 of their app with a new design. – The goal of my mission was to migrate to a newer architecture in kotlin for the version 3. – After my mission: 70% of the code is now in Kotlin. – MVVM with flow and Clean architecture with UseCases. – Offline mode. – Improved the network requests (cached some request). – 80% of the new code is tested with over 200 unit tests. – Tech: MVVM, BLE, Flow, Kotlin, Clean architecture, Mockito, Dagger.

– Context: I accepted the job for this this mission. The projet was amazing : We had to create a "product" which can be customised from a website. It means that with the same base code will be able to create many applications ! Indeed, Fnow is an Orange's product that offer multiples services inside a bulding such as geolocation, booking a meeting room. Every element or services is customisable from a secured website For instance we create a version for AIRBUS available here (https://play.google.com/store/apps/details?id=com.orange.oab.swp.airbus&hl=fr) – Implementation of new functionalities and redesign of the old application. – Development of new functionalities using AGILE methodology while respecting editor's recommendations. – Performance improvement. – Unit tests. – Continous integration with Team Foundation Server (TFS). – Deliver to multiple stores :Google Store Orange's private store. – Technologies: Kotlin. – API: REst, GraphQI. – Android Framework: Androidx, Mockito. – Software: Android Studio, Insomnia.