Full Stack Developer H/F - Freelance

Job description

Job opportunity – Full Stack Developer

Context and objective of the mission

The mission is part of a global Generative AI program dedicated to brand content creation. The objective is to transform how content is produced while preserving brand identity, authenticity, and creative DNA. Within an existing team of 18 people, the company is looking for a Full Stack Developer to help scale the product and take the project to the next level.

Main responsibilities

• Design and develop full-stack features from UX to API and database layers
• Build responsive, accessible, and high-performance user interfaces using React / Next.js and TypeScript
• Integrate with Python-based AI modules using FastAPI through REST APIs, including management of asynchronous workflows and job queues
• Work with Azure services including Blob Storage, PostgreSQL, and Service Bus to build scalable storage and processing pipelines
• Model and manage relational data with PostgreSQL extensions / ORM, including Prisma and Supabase
• Integrate and secure third‑party APIs, especially GenAI APIs such as OpenAI and FAL
• Ensure code quality through testing (unit, integration, end‑to‑end) and CI/CD pipelines
• Collaborate closely with designers, product managers, and AI engineers to turn ideas into production‑grade features
• Contribute to architecture discussions, documentation, and continuous improvement of the developer experience

Profile sought

Must‑have skills

• Strong expertise in TypeScript across both front‑end and back‑end
• Solid experience with React / Next.js and component‑based architecture
• Experience designing and consuming REST APIs
• Good command of PostgreSQL and modern extensions such as Prisma and Supabase
• Proficiency with Docker, GitHub Actions / CI/CD pipelines, and modern DevOps basics
• Ability to write automated tests with tools such as Jest and Playwright

Nice‑to‑have skills

• Familiarity with cloud environments such as GCP, AWS, or Azure and infrastructure‑as‑code tools such as Terraform
• Interest in Generative AI tools, embeddings, and prompt optimization
• Knowledge of Python / FastAPI for lightweight AI or data integrations

Mindset and soft skills

• Product‑oriented mindset with attention to both speed and quality
• Strong ownership and end‑to‑end accountability
• Collaborative approach in cross‑functional teams with the ability to communicate clearly with non‑technical peers
• Curiosity about AI and enthusiasm for exploring GenAI use cases in creative environments

Requirements

Tech stack

• Front‑end: TypeScript, React, Next.js, TanStack (Query / Router / Table), Tailwind CSS
• Back‑end: Node.js, REST
• Database: PostgreSQL, Prisma, Supabase
• Infrastructure: Docker, GitHub Actions
• AI integrations: OpenAI, FAL, other GenAI providers

Benefits and mission appeal

• Opportunity to join an advanced GenAI initiative in the marketing industry
• High‑visibility global project within a digital acceleration environment
• Collaboration with designers, AI engineers, and marketers on the future of brand content creation
• Fast‑moving and innovative environment at the intersection of design, AI, and technologyCompetitive freelance rate aligned with experience and portfolio