Freelancer profile translated to English.

Description

15 years of native Android development.

I work with startups and scale-ups that want a robust and performant Android application: retention, conversion, monetization (paywalls, in-app purchase, onboarding).

I also develop in an augmented way through daily and relevant use of AI agents, which allows me to deliver faster without sacrificing code quality.

What I bring in addition to a classic developer:

✅ Integrated product vision — I flag UX and monetization issues, not just bugs

✅ ASO — visibility and downloads on the Play Store

✅ Android code audit — technical debt, performance, maintainability

✅ Kotlin Multiplatform (KMP) — to extend your Android app to iOS without rewriting everything

Stack: Kotlin, KMP, Jetpack Compose, Coroutines, Hilt, Clean Architecture

9 satisfied clients · Rating 5/5 · Available for long or short-term missions

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Novarchive
Android Developer | Kotlin, KMP
LOGISTICS AND SUPPLY CHAIN
November 2025 - February 2026 (3 months)
Paris, France
Development from scratch of a business application forAndroidfor **Novarchive**, a leading French company in document management and archiving, present throughout the national territory.

As an Android mobile developer, I designed and delivered an internal application in Kotlin for field operators and managers, covering their daily business needs. The mission included integrating the Zebrabarcode scanner SDKfor use on dedicated Android devices.

Stack: Kotlin, Jetpack Compose, Hilt, Clean Architecture, SQLDelight, Coroutines, Flow
Android Kotlin Mobile Development Mobile Application KMP
Joolan
Android Developer | Kotlin, KMP
RETAIL (SMALL BUSINESS)
May 2025 - September 2025 (4 months)
Paris, France
SmartSale is an Android payment terminal application published by Joolan, integrating several payment solutions adapted to each merchant's needs.

The mission focused on integrating third-party Android SDKs (Adyen and Concert) into an existing Kotlin codebase, as a senior mobile developer.

I also conducted a technical audit to identify priority optimization areas, followed by a refactoring and bug fixing phase to improve the application's stability and performance.
Android Kotlin Mobile Development Mobile Application KMP
Peer.inc
Tech Lead | Android Developer | Kotlin, KMP
SOCIAL NETWORKS
September 2023 - March 2026 (2 years and 6 months)
Paris, France
From-scratch creation of the Peer Android application, now with+1.2 million downloadson the Play Store.

*Technical lead & managementof a team of 4 Android developers for 1 year, then 3 since 2025

*Development of a customizable conversational AI assistantwith user context

*Integration of a 3D mapping SDKfor an immersive experience

*ASO & A/B testing on the Play Store— measurable improvement in conversion rate on the store listing and increase in organic downloads
Stack: Kotlin, Coroutines/Flow, MVI, Jetpack Compose
Android Kotlin Mobile Development Mobile Application KMP

Check out Benjamin's experience

Man

Développeur application Android - Novarchive

Reviewed on 2/25/2026

Once again, Benjamin has shown great efficiency and exemplary professionalism. His expertise and the quality of his work have fully met our expectations. He supported us from the design phase to the production launch, remaining fully involved to ensure the smooth running of the pilot phase. I recommend him with my eyes closed.

Man

Développeur application Android - Novarchive

Reviewed on 1/6/2026

Working with Benjamin was a very good experience. He is passionate about mobile development and has solid expertise. Thanks to his professionalism and rigor, he developed and delivered a reliable, secure application perfectly suited to our needs. He quickly understood the challenges of our business and was proactive, suggesting relevant technologies and features for our organization. His adaptability and involvement were particularly appreciated. I highly recommend him, with my eyes closed.

Show all 4 reviews