Fractional CTO

About UsVestir AI is building the next generation of AI-powered virtual try-on technology for online fashion retail. We are partnering with one of the world's leading universities to develop breakthrough computer vision and generative modelling capabilities that will transform how consumers shop for clothing online.Our mission is bold and simple:we are recreating the in-store fitting room experience, online.We are a B2B-first company working closely with fashion retailers to deliver a seamless, accurate and highly engaging virtual try-on experience. The product you build will directly power the future of digital fashion commerce.We are now looking for a top class CTO to lead product development, establish our engineering culture, and translate our cutting-edge AI research into a robust, scalable commercial platform.What You'll DoThis role is ideal for a hands-on builder with strategic vision: someone who can lead on architecture, delivery, integration and hiring, who is not afraid to get their hands dirty. Initially the role is fractional, increasing to full time as we build & scale. You will work with our AI Research Team & Head of Development in the early stages to orchestrate the initial tech build.Product & Technology Leadership:Define and own the technical vision, architecture, and long-term technology roadmap alongside the Co-FoundersOversee the initial product build from MVP to scalable production platformTranslate advanced AI research into commercial-grade, real-time virtual try-on capabilitiesEnsure the product is secure, compliant, performant, and built for enterprise-grade reliability, keeping our company and customer data safeAI Commercialisation & Collaboration:Work closely with our research team to bridge the gap between scientific innovation and market-ready implementationHelp turn prototype models into scalable services, pipelines, and integrations suitable for high-volume retail environmentsGo-To-Market Delivery:Partner with the Co-founders to deliver our first commercial pilots and live retailer deploymentsOwn technical implementation and client onboarding for early B2B customersBuild robust APIs, SDKs, data pipelines and model-serving infrastructure compatible with retailer tech stacksTeam Building & Leadership:Build and lead a high-performing engineering organisation across product & engineeringMentor and support the team; set the culture of excellence from day oneEstablish engineering best practices, processes, workflow automation, and documentation standardsWhat You'll BringMust-Haves:Previously served as a CTO or Number 2 in a startup or high-growth technology company - this is a non-negotiableUnderstanding of AI/ML systems, computer vision, generative modeling, or 3D graphics - enough to collaborate meaningfully with academic researchersStrong full-stack or backend engineering experience with scalable, production-grade systemsDemonstrated ability to ship complex products end-to-end in fast-moving environments, ideally in eCommerceExperience building and managing high-performing product and engineering teamsNice-to-Haves:Experience in fashion tech, e-commerce, 3D modelling, or real-time renderingExperience deploying ML systems with strict performance / latency constraintsPrior work with enterprise retail integrations or SaaS platformsUnderstanding of apparel sizing, human body modelling, segmentation, or pose estimationPersonal Qualities:Builder mentality: scrappy, hands-on, hungry to move forwardsComfortable with experimentation, ambiguity, and rapid iterationCommercial mindset focused on customer impact and product qualityExcellent communicator who can work across business, research, and engineering domainsWhat You'll GetThe opportunity to reinvent how millions of consumers shop for clothing onlineThe chance to commercialise breakthrough AI research with a world-class academic partnerSignificant influence over product, culture, and trajectoryCompetitive salary and meaningful equity