Senior iOS Engineer · Tech Lead · Freelance

15 years building native Apple apps that hold up in production.

Software engineer since 2010 — developer, then Tech Lead, then iOS Manager. I have led teams of up to 7 people on high-traffic apps (Le Figaro, Bankin', SeLoger, Somfy TaHoma) and I now build AI-assisted agents and developer tooling.

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Available for new engagements On-site around Paris or fully remote

Romain Mullot, freelance senior iOS engineer — Neuilly-Plaisance · GMT+1

15+years of Apple experience

7 peopleteam managed (Paris / Ukraine)

99.9 %crash-free users at Bankin'

40 Mmonthly views — Le Figaro brand, all platforms

Apps shipped for

Le FigaroBankin'SeLogerSomfy TaHomaModuloTechNestlé EuropeTéléramaPagesJaunesBrandtAtlantic

Three hats

Developer, Tech Lead, agent architect.

Depending on what you need, I write the code, I lead the team writing it, or I build the AI tooling that speeds it up. Often all three on the same engagement.

iOS engineering

Swift, SwiftUI, UIKit, Objective-C. SOLID, Clean Architecture, MVVM-C, unit tests and Bitrise CI/CD.

Agentic code & AI

AI-assisted agents and tooling: Claude, Hermes, MCP servers, prompt and loop engineering, multi-agent orchestration.

Lead & management

Up to 7 developers, hiring, continuous training, code reviews and cross-team best practices. Agile Scrum / Kanban.

Where to find me

Book me, check me out, read my code.

Malt/romainmullot

The most direct way to start an engagement: day rate, availability and secure contracting in a few clicks.

Day rate on requestReply within 24 hSecure contracting

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LinkedIn/romain-mullot

Fifteen years of detailed career history and public recommendations from my former CTOs, leads and clients — all verifiable.

4 public recommendations8 roles detailed15 years of history

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GitHub/rmullot

Four public Swift repositories: FoodScanner (nutrition barcode scanner), LifeGame (Conway's algorithm), and two technical tests built for Leboncoin and Lydia. The best way to judge my code before trusting me with yours.

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Frequently asked

What people ask before we start.

Where do you work?

Based in Neuilly-Plaisance (93360), I work on-site anywhere in the Île-de-France region and fully remotely with no geographic limit.

Which technologies do you use?

Native Apple only: Swift, SwiftUI, UIKit, Objective-C, Combine, RxSwift, async/await and Bluetooth BLE, with SOLID / Clean Architecture / MVVM-C designs and Bitrise and Firebase CI/CD pipelines.

Do you work with AI and agents?

Yes. I design AI-assisted agents and developer tooling: Claude, Hermes, MCP servers, prompt and loop engineering, multi-agent orchestration, skill development and token-consumption tuning.

Do you have management experience?

Yes. As Tech Lead then iOS Manager I led teams of up to 7 people split between Paris and Ukraine: hiring, continuous training, code reviews and cross-team best practices, in Agile Scrum and Kanban.

How does an engagement start?

A first 30-minute conversation with no strings attached, then a written scoping note covering scope, technical risks, effort estimate and timeline.

Got an iOS project in mind?

Let's talk it through. A 30-minute no-strings first conversation to frame the need, the effort and the timeline.

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