Founding Full Stack AI Engineer

Company: SpecForm OS Employment type: [Full-time / Contract] Location: Remote-first; UK or compatible European time zones preferred Reporting to: Founder About SpecForm OS SpecForm OS is building an AI-powered technical fashion development platform for independent designers, brands and product teams. The platform transforms garment references into structured, editable technical outputs, including technical drawings, 3D renders, measurements, bills of materials, construction callouts and factory-facing production documents. We are preparing for our next Beta phase and are looking for a founding engineer to strengthen the product’s technical architecture, reliability and development velocity. The role As Founding Full-Stack AI Engineer, you will work directly with the founder to develop and scale the core SpecForm OS platform. You will contribute across the full product lifecycle, including system architecture, AI model integration, frontend and backend development, infrastructure, asynchronous processing, output quality and production reliability. This is a high-ownership role for someone who wants to help turn an early-stage AI product into a dependable platform used in real fashion-development and factory workflows. Responsibilities Own and improve the full-stack SpecForm OS application.Develop reliable AI workflows for technical drawings, 3D renders, specifications, BOMs, POMs and construction outputs.Build robust asynchronous job-processing and queue infrastructure.Improve generation reliability, fallbacks, error handling and observability.Develop editable and versioned workflows that support garment revisions throughout the sampling cycle.Improve PDF, SVG and technical-document export functionality.Instrument model usage, credit consumption, generation cost and output quality.Develop systems for structured user corrections and product-feedback loops.Support account management, billing, security and future integrations.Work directly with Beta users to identify technical issues and rapidly ship improvements.Contribute to product architecture and future technical hiring decisions. What we are looking for Strong experience building and shipping full-stack software products.Experience integrating generative AI, multimodal models or model APIs into production applications.Confidence working across frontend, backend, databases, cloud infrastructure and APIs.Experience designing reliable asynchronous jobs, queues and background-processing systems.Strong understanding of testing, observability, error handling and production reliability.Ability to make pragmatic technical decisions in a fast-moving early-stage environment.Strong product judgement and willingness to engage directly with users.High ownership and comfort working with limited structure. Useful experience Python, TypeScript and modern web frameworks.Google Cloud Platform, Cloud Run or Cloud Tasks.Computer vision, image generation or multimodal AI.SVG, vector graphics, CAD or editable visual-output systems.Usage-based billing, token systems or AI inference-cost management.Vertical SaaS, fashion technology or product-development software.Fashion-industry experience is helpful but not essential. Curiosity about how physical products are designed and manufactured is important. Why join SpecForm OS Join at a formative stage and shape the technical foundations of the company.Work on a technically complex product with a clear commercial application.Build directly with designers and brands using the product in active development cycles.Take meaningful ownership across architecture, product and engineering.Grow into a senior technical leadership position as the company expands. How to apply Please apply with: Your CV or LinkedIn profile.Links to products, repositories or technical work you have shipped.A short note describing a technically complex or AI-powered product you have built.Your availability and preferred working arrangement. We value practical evidence of what you have built more than formal credentials.