Full Stack Engineer – B2B / AI

✨ Full Stack Engineer – B2B / AI

📍 Onsite | 5 days/week in-office (NYC or SF)

🕒 Full-time

💰 $150K – $250K – depending on experience

We're partnering with a high-growth, venture-backed AI startup to find a Full Stack Engineer ready to take real ownership of core product infrastructure.

This is a hands-on, high-autonomy role for someone who wants to build, not just maintain. You'll work on systems that are central to the product, collaborating closely with a small, fast-moving team where your decisions have direct and visible impact.

🚀 The opportunity

This role is for an engineer who thrives in early-stage environments; where the problems are genuinely hard, the pace is high, and the work you ship shapes the direction of the product.

You'll take ownership of significant technical projects end-to-end, from architecture decisions through to production, working across the full stack in a codebase that's growing fast.

🧠 What you'll own

• Core AI product infrastructure, designing and scaling systems that work across the full platform
• Data pipelines, processing large volumes of structured and unstructured data into AI-legible formats
• AI integration, building agentic workflows and LLM-powered features into the core product
• End-to-end delivery, owning projects from initial design through to production and iteration
• Architecture decisions, making pragmatic calls that balance speed, quality and scalability
• Cross-functional collaboration, working closely with product, design and other engineers

👀 What we're looking for

• 3+ years of experience in full stack engineering
• Experience integrating AI into product workflows—using LLMs, building with agentic frameworks, or deploying AI-powered features
• Proficiency across the full stack: Python, React/NextJS, TypeScript, FastAPI, TailwindCSS and LLM APIs
• Experience working in high-velocity startups, from early stage through scaling
• Computer Science degree from a top CS school - Harvard, MIT, Princeton, Stanford, Berkeley, Caltech etc

If you're a PM who's grown fast, built things people love, and wants real ownership at the cutting edge of AI and social commerce, this is worth a conversation. Apply now.