Senior AI-Driven Fullstack Engineer (Claude Code Expert)

Jobgether; France; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Flexible hours

Remote or hybrid collaboration

Creative freedom

Involvement in product launches

Job summary

Jobgether in France is seeking a Senior Fullstack Developer (m/w/d) with AI-assisted software development expertise, focusing on Claude Code. You will drive backend APIs with TypeScript, Node.js, and Express, and work with Firebase and GCP to build scalable cloud solutions.

You will collaborate across product and tech teams, implement secure auth (OAuth 2.0, JWT), and contribute to frontend with SvelteKit and Tailwind. Remote or hybrid options are available as the platform scales post-launch.

Qualifications

• Extensive experience in AI-assisted software development, preferably using Claude Code.
• Advanced proficiency in TypeScript for backend development.
• Strong experience with Node.js and Express for server-side apps.
• Hands-on experience with Firebase and Google Cloud Platform.
• Deep understanding of REST API design, HTTP methods, statuses, and error handling.
• Experience implementing OAuth 2.0 and JWT authentication using Firebase solutions.
• Proven ability to build and maintain GitHub-based CI/CD pipelines for Firebase Functions.
• Experience integrating Stripe and Twilio services.
• Familiarity with frontend development using SvelteKit 2, Svelte 5, TypeScript, and Tailwind CSS.

Responsibilities

• Finalize development and implementation of key product features for the initial marketplace launch.
• Support transition from active development to operational delivery with reliable deployment processes.
• Promote engineering best practices, including clean code and maintainable architecture.
• Leverage Claude Code to accelerate implementation and maintain high-quality software.
• Design and maintain backend services and REST APIs with TypeScript, Node.js, and Express.
• Build and manage cloud-based solutions within Firebase and GCP.
• Implement secure authentication with Firebase, OAuth 2.0, and JWT.
• Develop and maintain GitHub-based CI/CD pipelines for Firebase Functions.
• Integrate third-party services like Stripe and Twilio.
• Support frontend improvements using SvelteKit, Svelte, TypeScript, and Tailwind CSS.
• Evaluate IT infrastructure and contribute to the technical roadmap.

Skills

TypeScript

Node.js

Express

REST APIs

OAuth 2.0

JWT

CI/CD

Cloud integrations

Tools

Firebase

Google Cloud Platform

Stripe

Twilio

SvelteKit

Svelte

Tailwind CSS

Job description

Jobgether in France is seeking a Senior Fullstack Developer (m/w/d) with AI-assisted software development expertise, focusing on Claude Code. You will drive backend APIs with TypeScript, Node.js, and Express, and work with Firebase and GCP to build scalable cloud solutions.

You will collaborate across product and tech teams, implement secure auth (OAuth 2.0, JWT), and contribute to frontend with SvelteKit and Tailwind. Remote or hybrid options are available as the platform scales post-launch.