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Portrait of Julien Moulin

© 2026 Julien Moulin

Tech Lead, Product Architect & Applied AI, Founder

I turn business needs into concrete products and systems.

I design and build digital products, modernize business applications, and support technical teams. I connect product vision, architecture, and delivery, with a practice of AI applied to company data and tools.

More than 20 years in software, including about ten in technical leadership. Autodistribution, FDJ United, Vallourec. Founder of Supralab, the studio behind MomentLabs.

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Illustration of a system: dashboard, capture, and connected applications
Selected work

What I have designed and shipped

Turn a business need into a platform, evolve the architecture inside a system that is already live, and carry the project through to actual use.

September 2024 to today, Arcueil

Autodistribution / Parts Holding Europe

Tech lead, product architect. Team: 5 engineers, 1 QA, 3 product owners.

Context and stakes

The group runs digital transformation programs: a site factory, middleware, automation, and continuity for applications already in production. Business teams need new tools (partner garages, a product reference, brand sites) without breaking the existing system.

My role

I own the product architecture, coordinate the team, and support decisions through to go-live. I decide how new products fit into the existing information system.

What the team ships

  • Partner-garage platform (PayloadCMS), integrated into the existing application ecosystem.
  • Bodywork catalog: a European product reference, a single source feeding several ERPs.
  • Site factory (PayloadCMS, Next.js, Storybook) with SSO, media, and modular-page plugins.
  • Kong middleware to keep continuity with Progilciel (XML ↔ JSON).
  • Cursor working standards for PayloadCMS and NestJS, multi-Jira tracking, and automated Confluence reports.

Outcome

These efforts have been underway since September 2024. They structure the group platforms and the support of a mixed product-and-tech team.

  • CMS foundation and site factory: about 12 months. Building the foundation, the plugins, and the design system.
  • Catalog interface reusing those building blocks: about 8 months. More complex than a CMS, but it relies on those blocks.
  • Later projects: 1 to 3 months depending on the adaptations. We reuse rather than invent, with the same approach.
  • Shared libraries and plugins pool the fixes: analysis and correction, which used to take several days, now take a few hours.
  • PayloadCMS
  • Next.js
  • React
  • NestJS
  • Storybook
  • Kong
  • TypeScript

January 2021 to today, Bazainville: founding Supralab

Supralab / MomentLabs

Founder, product and AI architect. Supralab is the studio behind MomentLabs.

Context and vision

An event (wedding, reception, seminar) scatters information quickly: budget, guests, vendors, tasks, photos, screens. The goal: connect operations and the participant experience in one platform, software and hardware.

My role

I own the subject end to end: vision, architecture, UX, web / mobile / TV, AI, hardware, and industrialization. MomentLabs products have been built progressively since Supralab was created.

The path: prepare, capture, display

The uses follow one another: prepare the event, capture contributions, show them on site, then find them again in a shared space.

Prepare: MomentHub

The organizer centralizes decisions, guests, vendors, budget, tasks, and content in a shared space. It is the entry point for finding media after the event.

Take part: MomentShot

Guests send photos and videos from their phones. Contributions join the event media space, linked to MomentHub.

Display: MomentTV

Content from MomentShot and MomentPhone is shown on a large screen: live, slideshow, or photo wall, from the MomentHub space.

Equip: Phone, Tablet, Booth

MomentPhone: a capture device for photos and video messages, retrieved with a QR code.
MomentTablet: a nomadic format (entrance, bar, circulation).
MomentBooth: a dedicated booth, easy to spot at the venue.

For professionals

Two platforms for event vendors: be found by organizers, then make their decoration equipment available.

MomentPro: live

Professionals sign up and gain visibility. MomentHub clients find vendors there, send them a request, and exchange messages.

MomentRent: in progress

The platform will let professionals publish their decoration items. Organizers will be able to compose their decoration, add items to a cart, and book.

Outcome

One platform connects preparation, capture, on-site display, and matching with vendors. The products are presented on momentlabs.fr.

  • Product
  • Architecture
  • UX
  • Web / mobile / TV
  • Applied AI
  • Hardware

November 2020 to June 2024, Boulogne-Billancourt

FDJ United

Engineering Manager & Tech Lead. Sports-betting platforms, about 40 people, 5 teams.

Context

The sports-betting platforms connect the point of sale, the web, and a service stack. Delivery has to stay reliable, in a regulated, high-traffic environment.

My role

Tech lead first, then cross-team coordination. Architecture, delivery tooling, and follow-up on the quality of what ships.

What shipped

  • Go-live of Parions Sport Point de vente with server-side rendering (SSR).
  • Kafka / BFF / workers stack, and a contributor CMS.

Delivery tooling

  • SemVer and changelog, OAS3 generation from Inversify to SwaggerHub, local simulator of the production stack.

Outcome

Technical leadership, then cross-team management, for three years and eight months. Parions Sport rebuilt in one year, including the Parions Sport Point de vente site.

  • With the tools and practices put in place (SemVer, changelog, local simulator, OAS generation), incident analysis and fixes on the sports-betting platforms went from several days to a few hours.
  • The full delivery process (version preparation, validation, and deployment) went from 3 days to about 2 hours.
  • SSR
  • Kafka
  • BFF
  • CMS
  • Delivery

April 2019 to October 2020, Boulogne-Billancourt

Vallourec

Tech Lead & Architect. Digital modernization of the group, 2 teams in France / Brazil.

Context

The group was modernizing its digital products: e-commerce, CMS, internal interfaces. The work was done between France and Brazil, mainly in English.

My role

Architecture, technical leadership, hiring, and product organization for both teams.

What shipped

  • Full e-commerce platform (API Platform and React), including the Smartengo storefront.
  • CMS that generates sites in Angular SSR.
  • Stencil design system reused to unify the interfaces of internal products.
  • Multi-environment delivery: AWS Lambda, GitLab CI/CD, Terraform.

Outcome

A modernized e-commerce platform, a site-generation CMS, and a design system shared across internal applications, with a Franco-Brazilian product-and-tech organization.

  • API Platform
  • React
  • Angular SSR
  • Stencil
  • AWS
  • Terraform
How I help

When to call on me

01

Design and build a product

The need is there, the scope is still unclear, or a first version does not yet match actual use. I help frame it, design the journeys, choose an architecture, then build and evolve the product.

What I bring: a continuous path from vision to go-live, without separating the product from the software.

02

Bring AI into business processes

A process takes too many back-and-forths, too much retyping, or too much searching through documents. I assess whether an agent, an assistant grounded in company documentation (RAG), or an automation actually changes the work, and I connect it to the tools and data already in place.

What I bring: operational AI, connected to the business.

03

Modernize and stabilize a system

The existing system has to keep serving while it evolves: business applications, integrations, CMS, reference data, quality, delivery.

What I bring: architecture decisions compatible with the information system, and a delivery process that is reliable and under control.

04

Support technical teams

A team is moving, but architecture decisions, organization, or tooling are slowing it down. I step in on leadership: trade-offs, method, and knowledge transfer.

What I bring: a frame for deciding and shipping, and the ability to explain the choices.

Way of working

From business constraints to real use

I start with what people do, under which constraints, with which tools. Scope, architecture, and software come after.

  1. Understand users and business constraints Who uses what, on what timeline, with which rules, which data, which existing system.
  2. Define scope and priorities What has to exist for the first real use, and what can wait.
  3. Choose a suitable architecture Solid enough to last, simple enough for the team to maintain. We build with the information system already in place.
  4. Build and test choices against real use quickly An architecture or interface decision is checked as soon as a business team can use it.
  5. Check that it works Quality, tests, useful documentation, reproducible delivery.
  6. Ship, observe, and improve After go-live, we look at what is actually used, then we adjust.

AI in products

Agents, automations, and assistants grounded in company documentation (RAG): I design them as functions of the system, connected to the business data and tools.

AI for design and development

I also use AI to speed up design, code, and documentation: agents, shared documentation, common context, and automation, for example Cursor standards for PayloadCMS and NestJS.

Background

My background

+20 yearsin software, since 2002

~10 yearsin technical leadership

5 to 40people supported, depending on the context

  1. Tech lead, product architect

    Autodistribution / Parts Holding Europe, Arcueil

    Group platform transformation, site factory, middleware, and automation. Architecture, coordination, team support.

  2. Founder, product and AI architect

    Supralab, Bazainville

    Creation of Supralab, the studio behind MomentLabs: a software and hardware platform for event operations and the participant experience.

  3. Engineering Manager & Tech Lead

    FDJ United, Boulogne-Billancourt

    Leadership, then coordination of several teams on the sports-betting platforms. Architecture and delivery tooling.

  4. Tech Lead & Architect

    Vallourec, Boulogne-Billancourt

    Digital modernization: e-commerce, CMS, design system. France / Brazil collaboration, hiring, and product organization.

  5. Team & Project Lead

    Blueanchor, Paris

    Team leadership in a services company: automation, internal training, client delivery. About 6 to 7 people per team.

  6. Frontend Lead

    Renault Digital, Boulogne-Billancourt

    Move from an Excel business tool to Angular, with strong constraints on data volume. Two teams, France and India.

  7. Fullstack Lead

    ClickEat SAS, Paris

    Symfony API and JWT, Ionic iOS / Android apps, CI, and hiring a team of 5.

  8. Web instructor

    LinkedIn Learning and training organizations, Remote / Paris

    About 40 video courses (Angular, React, Vue, Node, Symfony) and sessions for M2i, Orsys, ministries, and Capgemini.

  9. From developer to senior PHP / Symfony

    SensioLabs, For Design, Verneuil-sur-Seine town hall, Île-de-France

    SensioLabs (2011-2014): e-commerce, INSEAD, integrations. Before that: PHP / Symfony projects, system administration, digital workshops. Training: Educatel, programmer analyst (2000-2002); SensioLabs, Symfony (2008-2012).

Download the CV (PDF)
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Testimonials

What they say about me

“For a year and a half, Julien was our Tech Lead on Digital Business projects. He led the technical teams, made decisions on the technology we used, and facilitated Scrum. His commitment sped up the creation of innovative web applications. On a human level, he encouraged collaboration and everyone's wellbeing.”

Logan Bertau Head of product, Vallourec

“Working with Julien, my manager and mentor, was incredible. He taught me clean programming, simplicity, and effective solutions. He pushed us to take on big challenges by applying Agile and the latest technologies. A real asset for any team.”

Waleed Dridi Web developer, FDJ

“After a year working with Julien as Technology Lead, his results are clear. Technically skilled, he improves development methods. As a leader, he brings confidence and energy, helping the team reach its goals while keeping quality and deadlines.”

Thomas Bordenave Senior Manager
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“As a front-end dev and UX/UI designer on the same team, Julien and I collaborated successfully. He is open to ideas, finds clever compromises, and speeds up development. Working with him brings pleasant surprises and new ideas. Recommended without hesitation.”

Grégory Le Cozic UX/UI designer, Renault Digital

“Julien is an effective, serious developer who adapts to a project's constraints. When he worked for us, he became productive very quickly while delivering quality code. He is also someone very pleasant to work with. I strongly recommend his skills.”

François De Campredon Developer, Fadio IT

“The instructor I kept learning from. I found him on video2brain, and Julien strengthened my skills in Symfony, Angular, Ionic, Node.js, and more. Later, when I joined Baliz.org, I saw how well he listens and how he runs a project. Technically strong and excellent with people, Julien is a natural choice as lead dev or project manager.”

Thierno Thiam Web ecosystem, Google

“Julien regularly recorded video courses on web development. He is an excellent instructor who shares his knowledge with energy and enthusiasm. He is an outstanding teacher who also has real hands-on experience. I strongly recommend him to anyone who wants to learn and progress in this field.”

Magalie Carlier Content Manager, LinkedIn Learning

“Julien is someone very pleasant to work with. Passionate and convincing, his experience as an instructor makes him a good teacher: he can justify his technical choices and communicate easily with colleagues on product issues.”

Thomas Brun UX/UI designer, Melba

“I worked with Julien for 2 years on an innovative project for INSEAD, building a PHP platform for online applications. His talent and passion for development, along with his communication skills, make him an ideal choice as lead dev or web instructor.”

Raphael Degrave IT Manager, INSEAD
Contact

Talk about a project

A product to design, an application to modernize, an AI use to make concrete, or a team to support? Write to me with your context, the problem to solve, and any deadline.