Career
Sixteen years, eight companies, one ecosystem.
Fintech, news media, real estate, industrial home automation: very different contexts, the same bar for reliability — and a steady progression from developer to Manager.
MULLOT Romain EIApril 2026 — Present
Île-de-France
Freelance Senior iOS
- Supporting technical teams across the full cycle: scoping, architecture, development, App Store release and maintenance.
- Agentic engineering & AI — designing AI-assisted agents and developer tooling: Claude, Hermes, MCP servers, prompt and loop engineering, multi-agent orchestration, skill development, token consumption optimisation.
SwiftSwiftUIClaudeMCPClean Architecture
ModuloTechJune 2020 — July 2025
5 yrs 2 mos · Issy-les-Moulineaux
Lead iOS Manager
- ModulHome division (home automation). Subcontracting for connected-home players including Somfy and its TaHoma app — 28 languages, 4.3/5 across 52k reviews, top 50 Lifestyle on the App Store.
- Designed a complete Bluetooth framework from scratch, deployed at Brandt, Somfy, Atlantic and BFT: pairing, read/write across all devices, OTA updates, encryption, CBOR parsing, data-flow architecture, debug mode.
- Managed a team of 7 (Paris & Ukraine): hiring, continuous training, code reviews and cross-team best practices.
Bluetooth BLESwiftCBOROTAManagement
Bankin'March 2019 — November 2019
9 mos · Paris
Senior iOS Engineer
- Crash-free users raised to 99.9% and Swift 5 migration from 50% to 85% — the app now rates 4.7/5 across 91k reviews, top 20 Finance France and an App Store Editor's Choice.
- Technical debt reduction, battery optimisation, MVVM-C architecture harmonisation, security hardening.
- Product Engagement squad: PSD2 compliance, full rebuild of the “add a bank” funnel and of the bank-connection error recovery journey.
- Built a design system plus the animations and components of the new brand guidelines.
Swift 5.1.2MVVM-CBitriseDesign systemDSP2
SeLoger.comMay 2018 — September 2018
5 mos · Paris
Senior iOS Engineer
- Shipped versions 6.0 to 6.2 of the flagship app within a team of 4 — 4.7/5 across 157k reviews, top 10 Utilities on the French App Store.
- “Shared Favourites” feature, native animations and tagging plan. Code optimisation, unit tests, full redesign and new interfaces.
Swift 4.1.3MVVMSwiftLintFirebaseJira
Le FigaroOctober 2014 — January 2018
3 yrs 4 mos · Paris
Lead Developer iOS
- Complete rebuild of the flagship app (team of 5) — ranked #11 in France in News, 4.5/5 across 96k reviews. The Le Figaro brand draws roughly 40M monthly views across all platforms (ACPM, June 2026).
- Scope: interface, cache, web services, business model, ergonomics, widget, Apple Watch app, ad serving, unit tests.
- Maintenance and evolution of the newsstand app (newspapers and magazines in PDF).
- R&D from mid-2017: C++ / cocos2d-x games (word games, crosswords), Apple TV app, interface prototypes.
Objective-CSwiftwatchOStvOScocos2d-x
Accengage (Système Polaire)September 2012 — October 2014
2 yrs 2 mos · Paris
Lead Programmer iOS
- Managed a team of up to 4 people, architecture decisions, built an in-house framework.
- Apps delivered for Nestlé Europe, William Reed Business Media, FCI, RollApp, Sentinelo, Ferrandi, ilerter, Camaïeu, France Bois Forêt, Eliezer Benhamou.
Objective-CFramework interneManagement
DegetelFebruary 2011 — July 2012
1 yr 6 mos · Boulogne-Billancourt
iPhone / iPad Engineer
- iOS/iPad development on fixed-price and time-and-materials contracts: Télérama TV v1.6 (RedShift), Read and Go for Orange, Immobilier AnnoncesJaunes v1.1 for PagesJaunes.
- In-house: 3D demonstrator and WaveFront .OBJ loader (OpenGL ES 1.x & 2.x, GLSL, Core Animation).
Objective-COpenGL ESGLSL
Novacom AssociésJune 2010 — December 2010
7 mos · Paris
Apple Technologies Research Engineer
- R&D on 2D/3D user interfaces for rich-media iPad applications (Objective-C, C++, OpenGL ES, Unity 3D).
R&DUnity 3DOpenGL ES