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Maxence LassusML

Maxence Lassus

Senior Product Engineer | SaaS, AI Agentic & N8N

€600/day
Lyon, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Maxence

Freelance since 2012, I support companies in creating scalable digital products. My approach goes beyond just writing code: I bring aProduct Engineeringvision to transform complex business challenges into elegant and profitable technical solutions.

💡 Why work with me in 2026?

  • Senior Expertise (14+ years) : Former CTO, I understand the challenges of **profitability (ROI)**, technical debt, and **time-to-market**. I don't just develop "features", I build strategic assets.
  • SaaS & AI Focus : I integrate AI not as a gadget, but as an efficiency engine **(autonomous agents, RAG, intelligent automation via n8n/Vercel AI)**.
  • Modern & Sustainable Stack : Specializing in **Next.js (App Router), TypeScript, and Node.js**, I guarantee ultra-fast interfaces and a maintainable architecture.

🛠 My areas of expertise

  • Fullstack Architecture & Development : Creating SaaS from scratch or refactoring existing platforms.
  • Automation & AI Agents : Implementing intelligent workflows to eliminate time-consuming manual tasks.
  • Audit & Performance : Optimizing Core Web Vitals and reducing infrastructure costs (FinOps).

My philosophy: Simplicity & Velocity.

The best code is the one that serves the user while remaining easy to evolve. My job is to save you time, but above all, to give you a **technical edge**.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • GETALEAD
    CTO – SaaS Lab
    SOFTWARE PUBLISHING
    December 2023 - March 2025 (1 year and 3 months)
    Lyon, France
    As CTO of the GETALEAD Lab, I led the technical strategy and developed the SkipCall product from scratch, a parallel dialer allowing over 150 calls per day without needing to dial phone numbers. I designed and executed the entire project, both on the frontend and backend, in close collaboration with sales teams to meet business needs. The objective was clear: maximize the efficiency of prospecting teams through a simple, fast, and scalable tool.
    External API Integration React.js Strapi Twilio Node.js
  • e-biscus
    Partner,
    TECH
    April 2014 - January 2022 (7 years and 9 months)
    24 Rue Du Lieutenant Colonel Prévost, Lyon, France
    Co-founder and Technical Director (CTO) of the company, I managed the technical direction of all projects from idea to deployment. I was responsible for the software architecture and the overall technological strategy.

    I had complete responsibility for the architecture, fullstack development, and deployment (CI/CD, Cloud/Servers) for our entire web and mobile portfolio. My role involved choosing stacks (e.g., React/Vue/Node.js/Cloud), managing technical debt, and optimizing large-scale performance (high availability).

    I oversaw the creation and evolution of numerous digital products for a diverse clientele (E-commerce, B2B SaaS, Fintech), managing technical teams and ensuring quality and on-time delivery.
    Project Management Wordpress HTML5/CSS3
  • Imax Corporation
    Freelance Web Developer
    TECH
    January 2010 - April 2014 (4 years and 3 months)
    Lyon, France
    I support clients of all sizes in designing, developing, and maintaining custom digital solutions. From landing pages to complete web/mobile apps, I bring technical expertise and business vision to every project. My goal: simplify complex problems, automate repetitive tasks, and help businesses move faster.
    React.js Node.js React Native API Stripe

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Education

  • Computer Science Diploma
    IUT Grenoble
    2012

Skill set

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