Full Stack Developer (AI Project)

About the Project

We are looking for a Full Stack Developer to join a long-term AI project for our client.
The product is a cloud-based image editing platform that combines manual precision tools with AI automation. It supports segmentation, background removal, inpainting, matting, and advanced export workflows. The solution is moving from prototype to a fully scalable SaaS product used by designers and content creators worldwide.

A smooth onboarding is planned in October, including a handover from the current developer.

Responsibilities

• Develop and maintain the full stack: frontend (React/TypeScript) + backend (Node.js, APIs, PostgreSQL).
• Integrate external AI/ML services (HuggingFace, Replicate, Black Forest Labs).
• Optimise browser-side ML models (ONNX, WebAssembly).
• Build secure and type-safe APIs (tRPC, GraphQL/REST).
• Own database layer (PostgreSQL, Prisma ORM) – schema design, migrations, optimisation.
• Optimise performance for large-scale image processing and caching.
• Manage authentication/authorisation (JWT, OAuth, organisation-level permissions).
• Contribute to DevOps (CI/CD, Vercel, AWS, CDN, monitoring).
• Collaborate with designers, product managers, and AI researchers.

Requirements

Must-have:

• 3+ years of experience with TypeScript, Node.js, React.
• Hands-on with PostgreSQL + Prisma ORM.
• Strong API development skills (tRPC/GraphQL/REST).
• Cloud hosting & deployment experience (Vercel, AWS or similar).
• Experience with canvas rendering, WebAssembly, image processing.
• Familiarity with AI/ML service integration.
• Solid understanding of JWT/OAuth authentication.
   

Nice-to-have:

• Experience with ONNX Runtime or in-browser ML optimisation.
• Knowledge of SaaS billing/credit-based systems.
• Background in digital content workflows (photo/design software).
• DevOps: CDN, monitoring, service health.
   

Soft Skills

• Strong ownership and problem-solving mindset.
• Comfortable in a fast-paced, experimental AI environment.
• Good communication skills and fluent English (Upper-Intermediate+).

We offer:

• Long-term collaboration.
• Opportunity to work with cutting-edge AI technologies.
• Fully remote format (no travel required).
• Competitive compensation (to be discussed).