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Florian BaillyFB

Florian Bailly

Fractional CTO | Architect | PHP | Symfony

€750/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Florian

Your tech stack should accelerate your growth, not hinder it.

I help you structure your technical department and secure your product so it can scale serenely.

With 10 years of experience in back-end development and architecture, including a key structuring phase at Clickboat (Scale-up), I build the technical ecosystem that supports your growth.

What this looks like in practice: at Clickboat, I recruited and structured a team of 15+ developers organized into autonomous squads, created a new Product team, defined development standards, and drastically reduced technical debt.

On the architecture and development side, I help you to:
  • Deploy AI tools to increase productivity without degrading quality
  • Design scalable architectures (DDD, Hexagonal)
  • Secure and optimize your existing code
  • Refactor your legacy to unlock new business levers
On the organization side, I help you to:
  • Transform your developers into a high-performing team
  • Implement agile processes and CI/CD adapted to your context
  • Align your tech with your Product roadmap
My approach: Business First.

Every line of code, every architectural choice serves a concrete objective: conversion, retention, velocity.

Let's discuss your scaling challenges, **I'll respond within the hour**.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km)

Experience

  • Freelance
    Fractional CTO
    SOFTWARE PUBLISHING
    January 2026 - Today (6 months)
    Paris, France
    More and more entrepreneurs are building without knowing how to code. This is a strength until it's no longer enough.

    I assist them with:
    → AI tooling (prompts/skills and agents) to increase tech productivity without degrading quality
    → Process efficiency to iterate quickly and empower teams
    → Tech ↔ product alignment in service of the business
    → Software architecture and maintaining a simple, maintainable stack
    → Scaling tech teams and engineering practices (CI/CD, standards, mentoring)
    → Continuous delivery — transforming deployments into non-events

    My contribution is as strategic as it is technical: helping to make the right choices, not pushing a technology :)

    Preferred Stack: PHP/Symfony, Angular, AWS — but agnostic on languages, especially in the AI era where the language barrier is falling. The challenge is no longer how to code, but what to build and why.
    intelligence artificielle Gestion de projet Leadership Amélioration continue Architecture
  • Click And Boat
    Staff Engineer
    TRAVEL AND TOURISM
    January 2023 - December 2025 (2 years and 11 months)
    Boulogne-Billancourt, France
    → Co-definition and animation of the Core Team: gateway between squads, monitoring hot topics and overseeing infrastructure health.
    → Co-definition of the project lead role ("Champion") to enable devs to manage a project from A to Z without direct Product intervention → +6 months of product autonomy gained on the roadmap, product team almost disengaged from build & run.
    → Taking charge of a junior/mid-level squad: technical and project skill development within a quarter.

    🎯 Impact:
    → I contributed to supporting +40%/year growth over 5 years; the company became an international leader and profitable.
    → Redesign of the registration funnel: +€1M revenue in the first year! Reduction of friction and technical debt, improvement of security (fewer fake accounts and scams).

    +250 employees.

    Stack: Symfony (PHP), Twig, Tailwind, Angular, MySQL, Ionic Capacitor

    · Tools — Observability & Data: Sentry, Tableau, Snowflake, Grafana, Prometheus, Blackfire, Clarity
    · Infra (AWS): Kubernetes, Helm, Terraform, Docker, Nginx, Redis
    · Code & Project: GitLab, Notion
    Développeur PHP Symfony Amélioration continue Architecture Leadership intelligence artificielle
  • Click And Boat
    Senior Lead Web Developer
    TRAVEL AND TOURISM
    January 2022 - January 2023 (1 year)
    Boulogne-Billancourt, France
    → Creation and supervision of a Guild dedicated to stack maintenance.
    → Evangelization of technical decisions through presentations and workshops.
    → Redesign of the Search Page into an SPA (Angular).

    🎯 Impact:
    → +500 E2E tests deployed (fast test suite, team autonomous on it)
    → Search Page response time divided by 5 (1s → 200ms), significant reduction in technical debt.

    +250 employees.

    Stack: Symfony (PHP), Twig, Angular, MySQL, Vanilla JS
    Développeur PHP Symfony Amélioration continue Architecture Leadership Gestion de projet

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Education

  • Engineer (RNCP 1)
    Paris YNOV Campus
    2016
    Développement et réseaux

Certifications

  • PHP 7.1 - Zend Certified Engineer
    Rogue Wave Software
    2019

Skill set

Categories