Gaël Demette
cv_titlemicro_consultingblog
wishlistteaplantsblood_donationhacker_space
contact
Français

cv_titlecv_variant_cto_label

Gaël Demette

Technical leadership & team building

Two terms as president, including Qonfucius at up to 14 staff and ~€1M revenue. Recruitment, budgets, vendors, audits.

Essonne, France

professional_experience
6
cv_volunteering
4
cv_recommendations
3
my_skills
30
education
4
certifications
1
languages
2

last_update

A technical director of 34. I built an engineering team from zero to fourteen, fully remote, and led it for seven years.

I believe in empowering teams, betting on trust, competence and a dose of good communication. Technical leadership, to me, is mostly about creating the conditions in which capable people decide well.

My interests are software architecture, automation and cybersecurity. I arbitrate knowing the cost of what I am asking for.

professional_experience

since

Presidentadnap

Mission-driven company in the social and solidarity economy. Technical leadership of the company. Support for digital sovereignty

  • Public AI usage policy, with three deployment tiers: business service excluding training on submitted data, sovereign inference hosted in France, and self-hosted open-weight models down to air-gapped environments.
  • Declared agent surface on my own systems: read-only MCP server, llms.txt index and capability descriptor, with a versioned access policy that explicitly excludes personal content.

  • Infrastructure and cost optimisationAroma Zone

    Six months on transverse concerns: monitoring, infrastructure cost reduction, GCP and Azure.

  • Safeguarding reports platformFrench social affairs ministries

    Support for regional health agencies tracking reports concerning vulnerable adults.

RustNixKubernetesGitlabConsultingOpen SourceManagementBudget managementVendor managementProject managementPulumiDenoVueJS/NuxtPostgreSQLRedisTypeScriptClaude CodeMCP

since

CTOCashway

Part-time

  • Rewrote a production system from Python to Rust, with the scope revised following an audit.
  • Took over a product with none of its original team available: audit, reverse engineering and written documentation.
  • Built the non-regression metrics that framed the rewrite.

PulumiVendor managementRustPostgreSQLObservability

experience_period

PresidentQonfucius

Up to 14 employees and ~€1M revenue. Technical leadership of the company.

  • Founded to build a team from zero: 14 employees at its peak, low turnover, fully remote from day one, and revenue peaking at around €1M in 2022.
  • Transitional technical leadership
  • Worked on the Foncia group's ERP: raising code quality, and taking part in the team's technical debates and trade-offs.
  • Audits & consulting

  • e-ChauffeurFrench Ministry of Armed Forces

    Real-time tracking of Armed Forces drivers through cellular data tracing, on the model of an Uber without the payment layer.

    VueJS/NuxtMongoDB

  • Transverse DevOps infrastructureFrench Ministry of Armed ForcesLead DevOps

    Deployed the incubator's software onto in-house infrastructure hosted at Scaleway, and supported the development teams.

  • carrefour.fr rebuildCarrefour

    A roughly six-month engagement rebuilding the site.

  • Incubateur des TerritoiresANCTLead Tech

    Deployed the incubator's software onto infrastructure hosted at Scaleway, and supported the project teams.

  • Offline cloudFrench Ministry of Armed Forces

    Evaluation, benchmark and proof of concept for a cloud offering that runs disconnected from the internet.

  • StargateFrench Ministry of Armed Forces

    Access management for defence bases. A CI pipeline producing a self-contained archive, for deployment with no internet connection.

    MongoDB

  • E-commerce platformInVivo

    A roughly six-month e-commerce engagement.

ConsultingVendor managementProject managementKubernetesTerraform/OpenTofuGitlabGithubSupportBudget managementManagementRemote workOpen SourceVueJS/NuxtPostgreSQLRedisDirectusTypeScriptObservabilityAgileMicroservicesTDD

experience_period

CTOHungryUp

  • Very high availability of the application, with zero downtime.
  • Led a technical team of fewer than five people.
  • System and application architecture, APIs and the critical features, up to a substantial scaling capability.

GitlabManagementBudget managementRecruitmentProject managementMongoDB

experience_period

Lead DeveloperAdrenaline Hunter

  • Built a new product with Symfony.
  • Technical coordination with the product and marketing teams.

Github

experience_period

Self-employed and freelancer

GithubRemote work

cv_volunteering

since

Homework support

Supporting young people with their homework, from primary school to the final year of secondary.

experience_period

MemberMouvement Impact France

Member of the social and solidarity economy interest group.

experience_period

Volunteer MemberRéseau Entreprendre 91

Startup mentoring

  • Mentored two startups, a construction-industry ERP and a passwordless authentication product, as a sparring partner to surface their blind spots.

experience_period

Volunteer Trainerassociation "Le lien : l'informatique & nous"

  • Training people affected by digital illiteracy.
  • language_level
  • language_level

cv_recommendations

cv_recommendations_source

cv_recommendation_relationship_clientcv_recommendation_language

Gaël se distingue par sa grande polyvalence technique et sa capacité à intervenir sur des sujets variés, au-delà de son périmètre de développement habituel. À l'aise avec différentes technologies et les problématiques d'architecture, il sait investiguer les sujets complexes et trouver des solutions pragmatiques.

Il n'hésite pas à questionner les choix techniques ou organisationnels lorsqu'il estime qu'ils peuvent être améliorés, toujours dans l'intérêt du produit. Force de proposition, il apporte un regard critique et constructif aux réflexions de l'équipe et contribue ainsi à faire progresser les solutions et les pratiques.

Aurélie Droulerscv_recommendation_role

cv_recommendation_about

cv_recommendation_relationship_clientcv_recommendation_language

Gaël était devOps en freelance pour l'Incubateur des territoires de l'ANCT.

Il a toujours été très pro et très compétent. Il gérait l'hébergement sur Kub de nos services numériques !

Julie Ripacv_recommendation_role

cv_recommendation_about

cv_recommendation_relationship_manager

Gaël was one of the first freelancers I hired at the FabNum, initially as a full-stack developer on a single project.

Over the three years we worked together, he grew into a transversal technical role, notably building the DevSecOps environment used by all our projects, and bringing several great people into the team. I would happily work with him again.

Fred Bardollecv_recommendation_role

cv_recommendation_about

my_skills

education

education_period

Master of Science

Supinfo — Paris, Tour Montparnasse

Advanced programming (Java, C#), project management, cloud computing, network architecture, cybersecurity.

education_period

Bachelor of Science

Supinfo — Paris, Tour Montparnasse

Web development (PHP, JavaScript), databases, virtualisation, Linux administration.

education_period

BTS Information Technology Services for Organizations (S.I.O.) Option Software Solutions and Business Applications

IRIS — Paris XVII

Software development, systems maintenance, database management, networks and telecommunications.

education_period

Professional Baccalaureate in Electronic and Digital Systems (S.E.N.) Option Telecommunications and Networks at IRIS

IRIS — Paris XVII

Digital electronics, telecom networks, network infrastructure, systems maintenance.

certifications

certification_period

Prevention and Civic Rescue (PSC)

Fédération Nationale de Protection Civile

languages

  • language_level
  • language_level

cv_ssh_hint
cv_gemini_hint