I build web applications end to end, and bring in AI where it actually helps.

Right now: freelancing for Delange Immobilier, and building an AI website generation SaaS. Open to a role or a contract, in French or in English.

Experience

Chamonix, 1,035 mMont Blanc, 4,806 m
  1. School, 2018
  2. Pop Eye, 2019
  3. Atos / Eviden, 2019–2024
  4. Delange, 2026
  5. What’s next?
  1. 2026

    Delange Immobilier

    Freelance full-stack developer, Paris

    Took over the agency’s live Next.js 15 / React 19 real-estate application. Code audit (about 25 prioritized issues), access security, migration to the agency’s own accounts with no downtime, SEO and performance.

    Homepage weight

    3.7 MB21 MB

    Mobile display time (LCP)

    4.0 s88.7 s

    Next.js, React, TypeScript, Prisma, PostgreSQL, Neon, Vercel, Apimo API. Visit the site

  2. 2019–2024

    EdifiXio / Atos / Eviden

    Full-stack JavaScript developer, Levallois-Perret and Bezons, France

    • JUNIA, admissions. Jury and agent portals for international student registrations. React, TypeScript, Express, PostgreSQL, Salesforce
    • JUNIA, student fairs. Tablet app collecting prospective students’ program choices. Ionic, Angular, Express
    • Internal staffing. Full-stack features, Jira and Salesforce integrations. React, Express, MongoDB
    • UDIFE. Business application for funeral services, with a lead developer. Next.js, MongoDB, IBM Cloud
    • MACIF. Roadside-assistance request website. Angular, REST APIs
    • Jean Stalaven, Touton. Product recommendation algorithm; cocoa and coffee contract management. Node.js, Appian
  3. 2019

    Pop Eye

    Internship, Station F, Paris

    Web version of the startup’s mobile product, with React, Next.js and Node.js, and AWS file uploads.

  4. 2018–2019

    L’École Multimédia

    RNCP Level II certification, with jury honors

Ongoing projects

AI website generation SaaS

Entrepreneurial project, with a Business Analyst

An MVP that builds personalized business websites for small companies: Gemini-generated content, reusable templates, multi-site architecture.

Next.js, TypeScript, Prisma, PostgreSQL, Vercel

AI-assisted development

Personal project

My Claude Code setup: security and SEO auditing agents, automated checks before every pull request, safeguards on Git and secrets. The AI proposes, I approve.

Claude Code, Python, MCP

Skills

Front-end
React, Next.js, TypeScript, JavaScript, Angular, Ionic, Tailwind CSS
Back-end and data
Node.js, Express, REST APIs, PostgreSQL, MongoDB, Prisma
Cloud and tools
Git, Vercel, Neon, Heroku, IBM Cloud, AWS, Salesforce, Jira, Apimo, Appian

Outside of code

Jérémy Geneste climbing a granite needle in the Mont Blanc massif

My family is from Chamonix and I have a strong bond with Mauritius. Outside of code, I climb: in the Alps, on Réunion Island and in Mauritius.

Contact

A role, a contract, an application to take over? Drop me a line.

or email me at jeremy.geneste@gmail.com

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