Fractional CTO / Senior Full-Stack AI Engineer

I'm looking for a senior full-stack engineer or fractional CTO who can help drive product architecture, technical planning, and implementation for an AI-assisted workflow platform. This role is not just coding tickets. I need someone who can think through the product, write clear technical docs, communicate well in Slack, and help guide the system in the right direction. Required Skills - Strong product and architecture thinking - Ability to write clear technical documentation - Strong written communication, especially in Slack - Experience with pgvector, vector databases, or AI-focused database design - Node.js / Express - Next.js / React - Redux or similar state management - SQL database experience - Real-time messaging or event-based systems - Twilio, SMS, WhatsApp, or webhook experience - OpenAI, Anthropic, or similar LLM API experienc Nice to Have - Experience with internal operations tools - Experience with AI copilots or workflow automation - Experience with ecommerce, marketplace, logistics, payments, or customer support workflows - Experience working with existing production codebases How to Apply - A brief summary of your relevant experience. One or two lines is enough. - How many hours you can overlap with EST. - How many hours you can commit each day. - Whether you can work 1-2 hours on weekends if something urgent comes up. - Whether you are comfortable giving short daily updates in Slack. - Your approach to avoiding unnecessary calls and keeping communication efficient. - Your thoughts on my "How to apply" if you're not AI. I'm looking for someone who can think like a product architect, not someone who only connects ChatGPT to a message box.