Static Engine
An AI ad-creative SaaS for a US client — three AI providers behind automatic failover, Stripe credit billing, and Meta/Shopify integrations, built end to end by one engineer.
The problem
Performance-marketing teams need a constant stream of on-brand, platform-ready ad creatives to test and scale campaigns, but producing them through designers and studios is slow and expensive — and generic image generators ignore brand and ad-format constraints.
The solution
A SaaS platform that generates premium ad creatives on demand via a multi-provider AI backend, queued for scale with BullMQ, metered with Stripe credit billing, and wired into Meta Ads and Shopify so the output reaches live campaigns with minimal friction.
Overview
Static Engine (staticengine.com) is an AI ad-creative SaaS I build as a Senior Full-Stack Engineer on contract for a US client. It lets performance-marketing teams turn briefs and product inputs into premium, platform-ready ad creatives in seconds, instead of waiting days on designers and studios.
The backend is a NestJS + PostgreSQL service with BullMQ job queues running generation off the request thread, and a multi-provider AI/LLM layer (OpenAI, Anthropic, Google Gemini) so the system can route to the best model and stay resilient to provider limits. A Stripe credit-billing system meters usage, and the product integrates Meta Ads and Shopify so creatives flow straight into the channels teams already use.
I architected the backend and built the Next.js dashboard, then containerised and deployed the services on Linux. The engagement has delivered 420+ contract hours with a 5-star client review.
Key features
- Multi-provider AI/LLM generation (OpenAI, Anthropic, Gemini) with provider routing for quality and resilience
- BullMQ job queues that run heavy image/ad generation off the request thread at scale
- Stripe credit-billing system that meters generation usage
- Meta Ads integration so generated creatives flow into ad campaigns
- Shopify integration for product-driven creative generation
- Next.js dashboard for briefs, generation and asset management
- Containerised services deployed on Linux