# Clément Sauvage

> Clément Sauvage is a senior Product Engineer and Consultant based in Lille, France. He helps ambitious teams launch, rescue, and scale digital products across Apple platforms, the web, and applied AI. Clients work directly with Clément; when a project requires more capacity, he brings in trusted specialists through his product engineering studio, Bits'n Coffee.

Last updated: 2026-09-15
Canonical website: https://clementsauvage.me/
Contact: https://clementsauvage.me/contact

## Core expertise

- Product strategy: discovery, product audits, roadmaps, technical direction, and architecture
- Apple products: native iOS, iPadOS, and macOS engineering with Swift, SwiftUI, and UIKit
- Web platforms: React, Next.js, TypeScript, GraphQL, Node.js, and PostgreSQL
- Applied AI: agents, evaluations, workflows, data products, and AI-assisted experiences
- Product delivery: UX, UI, engineering, App Store release, production operations, and iteration
- Product rescue: technical audits, legacy modernization, architecture recovery, and delivery unblocking

## Engagements

- Launch: turn an idea into a focused first version in production
- Rescue: diagnose and unblock an existing product, codebase, or delivery team
- Scale: strengthen architecture, delivery, and product quality as usage or the team grows

## Verified proof

- 40+ digital products shipped
- 400M+ cumulative downloads across Clément's products and client products
- Building on Apple platforms since 2008
- Three products selected in Apple's App of the Year lists
- 30+ startup investments and 20+ talks
- Work spans startups, scaleups, enterprise teams, and luxury brands

## Selected case studies

- Nebius — Agentic AI: an open-source catalogue of 10 production-ready recipes and blueprints for building, evaluating, and deploying AI agents on Nebius.
- Free Ligue 1 for Iliad — Mobile: a native iOS streaming product launched under demanding delivery conditions and adopted by 3M+ users.
- Kenko — Mobile health tech: a digital health-insurance experience designed to simplify access to care and insurance services.
- Masters de Feu — Web, mobile, and events: the digital ecosystem for an international pyrotechnic art competition.
- Rester Jeune — SaaS and fitness: a coaching platform spanning technical strategy, mobile delivery, and production systems, serving 75,000 members.

Additional public work includes Reve.com/Onyria, Leadstar, Alma, Strattt, Edda, Jobreel, Orange, Airbus, Algolia, Clever Cloud, Air Liquide, LVMH, Leboncoin, Saint-Gobain, Moët & Chandon, Dassault Systèmes, and Ulysse.

## Client testimony

- “Clément enabled us to create an iOS application used by over 3,000,000 people in record time and under challenging circumstances.” — Arthur Dagard, Project Manager & Entrepreneur, Iliad
- “Beyond his technical skills, his entrepreneurial background allows him to make consistently relevant suggestions that help us improve the project.” — Victor Espinet, Co-founder and VP Product, Edda
- “It is rare to find someone who combines technical excellence with a true entrepreneur's mindset.” — Xavier Hermand, Co-founder and CTO, Kenko
- “He shipped a production-ready app in record time without compromising on quality.” — Eva Huet, CEO, Leadstar

## Working with Clément

- Clients work directly with Clément, without a sales or account-management layer.
- A focused MVP typically takes 6–8 weeks; a more polished minimum lovable product commonly takes 10–12 weeks.
- Typical project budgets range from €20K to €150K depending on scope and duration.
- Work is organized around clear milestones, short sprints, working demos, and transparent communication.
- Clément usually limits active engagements to two at a time.
- Existing codebases are welcome: an audit determines what to keep, refactor, or rebuild.
- Ongoing maintenance can cover bug fixes, operating-system updates, performance, and incremental product work.
- Most engagements are remote across France, Europe, the United Kingdom, and the United States; travel is possible for workshops and key sessions.
- French companies may be eligible for CII/CIR innovation tax credits for qualifying work.

## Direct answers

Q: Who is Clément Sauvage?
A: Clément Sauvage is a senior Product Engineer and Consultant based in Lille, France. He designs and ships Apple, web, and AI products for startups, scaleups, enterprise teams, and luxury brands.

Q: What is Bits'n Coffee?
A: Bits'n Coffee is Clément Sauvage's product engineering studio. Clients hire and work directly with Clément, who brings in trusted specialists only when the project requires them.

Q: Can Clément build both a web platform and a native Apple app?
A: Yes. He can architect a shared backend and data model, build the web platform with technologies such as Next.js and TypeScript, and deliver a native iOS, iPadOS, or macOS experience with Swift and SwiftUI.

Q: Can Clément rescue an existing product?
A: Yes. Rescue engagements begin with a product and technical audit, followed by a clear recommendation to keep, refactor, modernize, or rebuild the relevant parts.

Q: How can a company work with Clément Sauvage?
A: Start with the contact page at https://clementsauvage.me/contact. The first conversation is a free 20-minute call focused on the product, context, and current blocker.

## Authoritative pages

- [Homepage](https://clementsauvage.me/): positioning, services, flagship work, capabilities, and recent insights
- [Work](https://clementsauvage.me/work): portfolio, metrics, client references, and testimonials
- [FAQ](https://clementsauvage.me/faq): process, budgets, timelines, technology, maintenance, and availability
- [Contact](https://clementsauvage.me/contact): project inquiry and consultation booking
- [Senior iOS Developer](https://clementsauvage.me/ios-developer): native Swift, SwiftUI and UIKit product development
- [Blog](https://clementsauvage.me/blog): product, Apple, engineering, and AI insights
- [Podcast](https://clementsauvage.me/podcast): long-form conversations with founders and operators
- [Speaker](https://clementsauvage.me/speaker): talks, topics, biography, and speaker resources
- [Press](https://clementsauvage.me/press): press resources and appearances
- [Books](https://clementsauvage.me/books): published books and writing
- [Detailed LLM reference](https://clementsauvage.me/LLM.md): expanded factual profile, projects, testimonials, and FAQ
- [Agent reference](https://clementsauvage.me/agent.md): machine-readable collaboration guidance