Arnaud Langlade

When your application slows down delivery

Stressful deployments.
Recurring incidents.
A legacy application that slows down every change.

It is almost never a lack of motivation or skills.
Most of the time, the foundations, practices, and organization no longer scale.

The problem with a poorly managed application?

The real cost of inaction:

each delivery becomes riskier,
technical debt slows down innovation,
teams lose confidence,
adding more developers does not speed things up.

Result: you deliver less, more slowly, and with more incidents.

My role?

I support teams as a Software Architect and CTO on-demand, with 15 years of experience on critical legacy applications as well as from-scratch products.

My goal: build strong foundations without stopping delivery.

In practice, I work closely with teams to:

identify what is really slowing down delivery (beyond the symptoms),
evolve an existing application step by step, without a “big refactor”,
improve practices (architecture, testing, CI/CD, collaboration),
build solid foundations when starting a product from scratch.

Often through pair or mob programming, to make sure changes last.

What people I worked with say

Arnaud is a very talentuous senior software engineer with robust and proven experience. Arnaud, as leader of a development squad, has successfully delivered a SaaS native platform from first steps of product ideation all the way to the SaaS platform in production. Thanks to Arnaud broad technical expertise and smart human touch, he has been able to lead, coach and grow multiple members of the squad (product manager, software engineer, DevOps). While being very demanding for himself, Arnaud is very pleasant toward his team members and fun to work with.

Arnaud Faissolle (Engineer Manager at Akeneo)

J’ai fait appel à Arnaud pour m’aider à remettre de l’ordre et smplifier une application web métier. Parfois, les déploiements étaient risqués. Nous n’avions pas pris le temps de prendre du recul sur nos développeemnts depuis des années et le ménage n’avait pas été fait dans des tests obsolètes. Arnaud a apporté des méthodes et sa patience pour remettre en ordre et simplifier notre code et notre architecture. Avec Arnaud, nous avons reduit d'1/3 le volume de code source et triplé le nombre de tests, à fonctionnalités égales. En quelques mots, méthode Mikado, EventStorming, culture de la ‘CI verte’, harnais de tests, remise en cause et questionnement des choix techniques, suppression des complexités inutiles, encadrement des juniors sont les points qui font sa marque de fabrique.

Grégory Planchat (Co-fondateur de Gyroscops)

Arnaud est un développeur exceptionnel, dont l’autonomie et l’initiative ont marqué son passage dans nos équipes.Sa capacité à prendre en charge des projets de A à Z ainsi que son esprit d’analyse et de synthèse en font un très bon leader technique. Si vous avez la chance d’avoir Arnaud dans votre équipe, vous verrez rapidement son impact positif. Je recommande Arnaud avec enthousiasme.

Arnaud LEMAIRE (CTPO at Sunday)

Arnaud is a great software engineer. He led the design and delivery of valuable features and capabilities in our product offer. He introduced, advocated, and embodied many excellent practices like domain-driven design, event storming, and more. His passion for clean architecture and quality positively influenced our entire product development team.

Nicolas Dupont (Co-founder at Akeneo)