Freelancer profile translated to English.

Description

iOS (Swift, Objective-C) and Android (Java, Kotlin) developer for over 15 years, freelance for 20 years.

Excellent knowledge and practice of iOS architecture and most iOS frameworks (Foundation, UIKit, QuartzCore, CoreLocation, Crypto, sqlite, Network, Camera, Photo, CoreLocation, Biometrics, WebKit, CoreAnimation, CoreVideo…)

Excellent knowledge and practice of Android architecture (Activities, Services, Broadcasts, Fragments, AndroidX, JetPack, single activity application architecture, optimized image loading…).

Excellent knowledge of the Matrix protocol (3 years of experience as a developer for the secure messaging app Tchap).

Development from scratch or taking over existing projects.

+100 applications for all types of clients (from small businesses to very large multinationals), some of which were presented at CES Las Vegas.

Examples of clients: French State (Prime Minister's Services), Bayer, SNCF, Renault, PSA, Coca-Cola, TF1, M6, Van Cleef & Arpels, Cité des Sciences, L'Oréal, Krys, Pernod Ricard, Sanofi, Boiron, Michelin, Procter & Gamble, Le Sénat, Valéo, Docapost and many other agencies…

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Tours (up to 50km), Paris (up to 100km), Lyon (up to 100km)

Beta Gouv - DINUM
Lead Dev iOS - Architect
PUBLIC SECTOR
January 2026 - Today (5 months)
Paris, France
I am responsible for the iOS architecture and development of AMI, the Interministerial Mobile Application, the assistant for citizens' administrative life.

This is a new application developed from scratch.
As the development lead for this product, I use Clean Architecture and the MVVM-Coordinator pattern as much as possible.
iOS SwiftUI GitHub Clean Architecture Lead Developer
Beta Gouv - DINUM
Lead iOS and Android Developer
PUBLIC SECTOR
January 2023 - March 2026 (3 years and 2 months)
Paris, France
I am in charge of the maintenance and evolution of the iOS and Android mobile clients for Tchap, the instant and secure messaging service for state employees.
I am also in charge of the migration to the next version of Tchap, based on the new Element codebase (Element X).
Tchap is based on the Element messaging system and the open Matrix protocol.
Initially based on the first Element client, the development of the new version of the messaging service based on the brand new Element client is almost complete.
440k+ registered users, 3M+ monthly messages
Swift Lead Developer SwiftUI Mobile Application Matrix
Ucapt
Senior CTO Lead iOS Developer
FILM AND AV
January 2018 - Today (8 years and 5 months)
Télétravail
Sole architect and developer of the Ucapt iOS application: structure, network layer synchronized with the database layer, UI, expert camera, crypto, and security...
This experience led me to master most of iOS frameworks.
I also developed the camera management framework to provide professional photographers with all advanced sensor settings.
iOS Swift UIKit GitHub Objective-C

Check out Nicolas's experience

Jorge

My Little Paris

Reviewed on 4/27/2021

Great contact with strong involvement from the beginning to the end of the mission. Nicolas always knew how to organize tasks, be reassuring, and offer strong suggestions.

Account deleted

Reviewed on 9/29/2020

We work regularly with Nicolas because, in addition to being efficient and trustworthy, his skills cover many areas (web and mobile). All combined in a very friendly person!

Show all 28 reviews