Available for keynotes & advisory

iOS Lead Developer
& Swift Architecture Expert

I help product teams ship resilient, scalable iOS apps with Clean Architecture, modern Swift, and AI-assisted development. 13+ years building mobile systems at scale — currently Lead iOS at Sephora. I work with CTOs and mobile leads whose codebase has outgrown its architecture, and with conference teams who need a talk their senior engineers will actually argue about.

13+ Years in iOS
Lead iOS at Sephora
Speaker International Swift confs
Host Swift Academy podcast

Trusted in the Swift community

  • SephoraLead iOS
  • Swift ConferencesSpeaker
  • Swift AcademyPodcast Host
  • Swift TribuneFounder
  • 13+ yearsShipping iOS

About

A senior voice in the iOS community.

I'm Walid Sassi, an iOS Lead Developer based in France with 13+ years of shipping production-grade mobile apps. My focus is the architecture beneath the product: Clean Architecture, dependency injection, modular Swift, and the patterns that let teams move fast without breaking things.

  • 01

    Lead iOS Engineer at Sephora — building flagship retail experiences.

  • 02

    International speaker at Swift conferences across Europe. See talk topics →

  • 03

    Host of the Swift Academy podcast.

  • 04

    Founder of Swift Tribune, a platform for advanced iOS architecture.

Platform

Swift Tribune.

The platform where I publish in-depth articles, code patterns, and case studies on advanced iOS engineering — Clean Architecture, modular SwiftUI, testing strategy, and AI-assisted Swift development. Built for senior engineers who care about craft.

Visit Swift Tribune →

Swift Academy · Podcast

Conversations with the people building Swift.

Long-form, deliberately technical interviews on concurrency, architecture, and on-device AI. Episode 8 was featured in the official Swift.org newsletter.

Apps

Building better tools for Apple developers.

Alongside my work as an iOS lead, I design and build independent apps. They come from the same place as everything else here: the Apple ecosystem, developer productivity, and practical tools that solve real problems.

Sindri

macOS Developer Tools

The complete toolbox for iOS and macOS developers.

Sindri is my native macOS app for Apple platform developers: seven tools in one window, built to simplify the everyday workflows around shipping an app.

It started as a personal solution to a recurring problem — managing provisioning profiles and certificates across multiple Apple Developer accounts. What began as a fix for my own workflow grew into a dedicated application I designed and built independently.

  • Signing & Certificates — finds expiring or revoked certificates, missing private keys and mismatched profiles, and renews certificates once you confirm.
  • Xcodes — installs, switches and uninstalls Xcode versions, with simulator runtimes and disk usage in view.
  • Swift Preview & SwiftUI Analyzer — renders a SwiftUI view beside its code, and graphs a view hierarchy with its state dependencies and re-render risk.
  • Releases & Reminders — tracks each build through the App Store pipeline and notifies you before certificates and profiles expire.

macOS 15 or later · Apple silicon and Intel · Signing and Certificates tools are free

Sindri's Overview window on macOS, showing a signing alert, the active Xcode version and builds in the release pipeline
AI Driven Swift Architecture — book by Walid Sassi & Dave Poirier, published by Packt

Out now · Published by Packt

AI Driven Swift Architecture.

The complete playbook for building production-grade iOS apps where Swift, SwiftUI, and AI work as one — Apple Foundation Models, MCP agents, Clean Architecture, and TDD. Co-authored with Dave Poirier · foreword by Jon Reid (Quality Coding).

  • Architect SwiftUI apps with Apple Foundation Models
  • Ship MCP agents and AI-assisted workflows that scale
  • Apply Clean Architecture & TDD on real production codebases

Available now in print & eBook · Read the first chapters on Swift Tribune.

What senior engineers say about it

  • AI-driven development is something you need to understand today. If you ignore it, you fall behind. This book does a great job helping to get oriented in this space. […] The content is focused and straight to the point. Definitely a must-read.

    Artem Mirzabekian Artem Mirzabekian Lead iOS Engineer at Sovcombank · 10+ years scaling mobile platforms
  • This book is essential for any Swift developer (of any level) looking to solidify what Swift looks like in the age of AI. […] As a Lead, I'll be recommending this to my developers, for sure.

    Danny Bolella Danny Bolella Captain SwiftUI · Lead Software Engineer