About Kevin
English
Fluent
French
Native or bilingual
Experience
- KLEAK DevelopmentFounder & Fractional CTOSOFTWARE PUBLISHINGJanuary 2017 - Today (9 years and 5 months)Toulouse, FranceI help startups and scale-ups ship mobile products with Flutter and Dart — from first commit to App Store.As an independent consultant, I embed directly with founding teams to own the technical side: architecture, development, hiring support, and developer training. My engagements range from 3-day intensive workshops to 11-month CTO-level partnerships.Selected missions:▸ NoCoffee / Dooz Smart Home (22 months) — Built a custom cross-platform BLE (Bluetooth 5) package from scratch. Abstracted iOS CoreBluetooth and Android BLE SDKs into a single Dart API used by the entire smart home app. Still actively used and maintained by the community (42 GitHub stars).▸ weebi.com (11 months) — Fractional CTO. Owned full stack from Dart gRPC backend to Flutter mobile app. Managed technical strategy and delivery.▸ XOXNO (8 months) — Led Flutter development for a blockchain marketplace. Standardized reusable Dart packages for API and service integration.▸ MUNIC (6 months) — Embedded to elevate app quality: implemented best practices, authored technical documentation, improved test coverage.▸ Lunii (3 months) — Senior dev reinforcement to unblock critical path and accelerate product launch.▸ ADEO Services (3 months) — Built Flutter architecture from scratch, trained ~5 developers, created white-label components for the ADEO app ecosystem.▸ Boursorama (3-day intensive) — Designed and delivered a hands-on Flutter training workshop for their mobile engineering team.Also building open-source tools:• spark.kleak.dev — Web framework for Dart backends, used in production• xfwd.link — Link shortener service, built and deployed solo
- Tech For ChangeLead Flutter EngineerSOFTWARE PUBLISHINGJune 2021 - December 2023 (2 years and 6 months)Paris, FranceLed mobile development for a regulated FinTech platform from MVP to production, handling real client assets under management.• Built all client-facing mobile applications end-to-end with Flutter• Architected the "Regular" DeFi investment app — designed for regulatory compliance and financial data security• Authored technical documentation for engineering teams and financial regulators (audit-ready)• Collaborated with product & design to define features and technical roadmap
- LeftyLead Front-End EngineerLUXURY GOODSJanuary 2017 - January 2019 (2 years)Paris, FranceOwned the main client-facing web platform built with AngularDart, serving major international lifestyle brands and agencies in the influencer marketing space.• Led front-end architecture and development• Delivered features for campaign management and analytics dashboards• Collaborated closely with product and back-end teams
Reviews
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Expert in Information TechnologyEpitech2017