Product Engineer for startups shipping real products.

I turn product ideas into production-ready Web & Mobile systems — aligning product strategy, UX, and engineering without tech debt.

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Product VisionMy StackShipped System

Product Interfaces

Design system and interaction logic

Product Interfaces
Clear and reliable interfaces for SaaS products and digital platforms. Focus on usability, performance, and long-term clarity, especially in products with complex workflows, data consistency constraints, permissions, latency, and real-world usage conditions.

Mobile Applications

Native apps workflows and performance

Mobile Applications
Production-ready mobile applications, native or cross-platform. Covers SaaS mobile clients and apps interacting with connected devices, including authentication, data synchronization, real-time updates, device communication, and robust handling of edge cases.

Platform Systems

Backend systems & architecture

Platform Systems
Scalable platform systems that power SaaS products. Includes APIs, backend services, dashboards, data pipelines, and commerce or subscription systems, built for performance, maintainability, and long-term evolution.

Delivery

End-to-end product delivery

A hands-on, execution-focused approach covering the full product lifecycle — from MVP to production. I make pragmatic technical choices early, validate real-world constraints fast, and deliver incrementally. The goal: software that stays clear, maintainable, and reliable as the product grows.

Ideal for

Startups building connected products
SMEs combining hardware and software
Product teams needing hands-on execution
01

Discovery & Strategy

Clarifying goals, constraints, risks, and technical requirements to define the right approach.

02

Design & Architecture

Designing interfaces and system architecture that balance user needs with real technical constraints.

03

Development & Iteration

Building iteratively, shipping early, and addressing edge cases before they become blockers.

04

Production & Scale

Deploying reliable software that is maintainable, scalable, and ready for real-world usage.

Case studies

Built, shipped, and used

E-Tonus

End-to-end development of a connected medical device ecosystem. BLE wearable, iOS & Android apps, Python backend, and WordPress e-commerce platform.

BLE wearableiOS & AndroidData pipelines
E-commerceFront-endcommerce platform& account managementBackendPython backendwith FastAPIJWT authenticationiOS AppSwiftUIwith SwiftDataAndroid AppKotlinwith ComposeCRM SystemCustomer dataFull trackingPaymentsStripe API integrationBLE DEVICEE-TonusBLE wearableConnected

StackAudit

A tool for discovering and auditing for non sovereign tech used in websites. Helps organizations identify dependencies and ensure compliance with data sovereignty requirements.

Tech AuditSecurityCompliance
Input FormTarget URLscan optionsResultAudit reportrisk summaryFront EndUser portalscan historyAPIRequest routingauth + limitsBackendJob schedulerscan orchestrationWorkerCrawler agentdependency mapPostgresFindings DBscan snapshotsGitHubRulesetsaudit configsCI/CDDeploysscheduled runsPDFReport buildexport delivery

CitizenK

Elegant e-commerce platform with custom CMS and payment integration. Delivered a seamless shopping experience across web and mobile.

E-commerceCMSPayment Integration
CitizenK case studyHomeContentsMedia ContentsBoutiqueCheckout FunnelAccountNewsletterAdvertising System

Silvia Monfort

Website redesign and ticketing journey for a cultural venue. Streamlined event programming, membership, and booking flows.

Web RedesignTicketingEvents
Silvia Monfort case studyContentMedia ContentProgramArchivesNewsNewsletterBooking System

Brands I've worked for

Air FranceAGIFIAssoulineBell & RossBordeaux Science AgroCitizen KE-TONUSLANCASTERL'Ecole d'ArtLONGCHAMPMEGASUNNespressoPREP.ARTRoyal CheeseSFRSilvia MonfortSonyStackAuditTony&Guy

About

Product engineering, applied.

Twenty years building digital products across a wide range of contexts, from creative studios to startups and production systems used at scale.

Beyond execution, the work is guided by a clear direction. Products should be understandable, resilient, and built on technologies that reduce dependency and long-term lock-in. European-first stacks, pragmatic architectures, and real-world constraints are not ideals, they are design inputs.

The role is to help teams make the right decisions early, ship reliable software, and build platforms that can evolve without constant reinvention.

This is long-term product thinking, applied hands-on.

Available

For freelance work in France and the EU.

Discuss a project

Phone: +33 (0)6 37 28 14 56