Freelancer profile translated to English.
Back to original languageAbout Yohan
I have been a backend developer for 8+ years, with a very "product" DNA: I enjoy connecting tools, automating, ensuring data reliability, and building systems that truly run in production.
This mix of technical + business led me to co-found LanderMagic and to lead the tech & data stack at YouStock (International Scale Up).
What I do:
- Laravel backend development (APIs, webhooks, workers/queues, performance, refactoring)
- Complex integrations: HubSpot, Google Ads, Mixpanel, Zapier/Make, Stripe, business tools
- AI Automations (LLM APIs, scoring, generation, internal assistants)
- Proper & server-side tracking: GA4, GTM, Ads, attribution, data flows
- Architecture & reliability of SaaS systems in production
I often intervene when:
- integrations break,
- tracking never says the same thing,
- HubSpot/CRM workflows become unstable,
- teams need to ship fast but the stack isn't ready,
- a SaaS needs to intelligently add "AI" (not just a gadget).
Key References:
- LanderMagic (co-founder / CTO) — SaaS engine for dynamic landing pages + server-side tracking
- YouStock (backend then Growth Product Manager) — Laravel 7→10 migration, HubSpot ↔ Mixpanel ↔ back-office automations, +30% conversion
- +30 integration / CRM / tracking / data flow projects delivered
I work as an impact-oriented technical partner, not an executor: I challenge, I propose, and I deliver quickly.
👉 Response within 1 hour. We can discuss it anytime.
French
Native or bilingual
Can work on-site
Nice (up to 50km)
Experience
- LanderMagicCo-Founder & CTOSOFTWARE PUBLISHINGNovember 2023 - Today (2 years and 7 months)Paris, FranceLanderMagic is a SaaS tool that allows Google Ads advertisers to create and customize landing pages optimized for each keyword or location in minutes. It combines an intuitive page builder, dynamic content personalization, advanced tracking, and GDPR compliance to improve campaign conversion rates and ROI.
- YouStockGrowth Product ManagerLOGISTICS AND SUPPLY CHAINJanuary 2024 - February 2025 (1 year and 1 month)Nice, FranceHead of the Growth team, I led the migration of the internal CRM to HubSpot and implemented advanced automations between HubSpot, Mixpanel, and the back-office to streamline sales and marketing processes.I also orchestrated and monitored growth experiments to improve acquisition and retention, coordinating the team's actions and ensuring deadlines were met and results were measured.
- YouStockBack End DeveloperLOGISTICS AND SUPPLY CHAINFebruary 2022 - January 2024 (1 year and 11 months)Nice, FranceAs a Backend Developer at YouStock, I led the migration from Laravel 7 to Laravel 10, redesigned the Stripe payment system to be asynchronous (Laravel queues + Redis) for better performance and reliability, and ensured synchronization between HubSpot and the internal back-office. I also coached and mentored junior developers to elevate the team's technical level.
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Education
- Master 2 (M2) 360 Digital, DigitalSUPDEWEB Nice2018Master 2 (M2) 360 Digital, Digital
- Professional Bachelor's Degree IMApp (Applied Computer Science and Multimedia), Web Management / Multimedia and WebmasterUniversité Nice Sophia Antipolis2016Licence professionnelle IMApp (Informatique et Multimédia appliquée), Gestion du Web / multimédia et webmaster