Founding Full Stack Engineer

⚡ Hiring a Founding Full Stack Engineer — YC W24 AI startup (well-funded, fast-growing)At Dynamism, we partner with breakout startups backed by Y Combinator, Sequoia, a16z, Founders Fund, and OpenAI to help them hire engineers with founder energy.One of our clients — one of the fastest-growing companies out of YC W24, generating revenue with years of runway — is hiring a Founding Full Stack Engineer to join their SF team.The product: an AI recruiter that conducts real-time job interviews over video and phone, asking personalised follow-up questions based on candidate responses. Already conducted thousands of interviews across engineering, IT, retail, and hospitality. The team serves both candidates (interview experience) and employers (data aggregation + analysis platform) — so you'll build consumer-facing AND enterprise-grade software.💻 Location: San Francisco (in-person, on-site)💰 Comp: $150K–$250K base + meaningful equity🌍 Stage: YC W24, well-funded, generating revenue🛠️ Stack: React, TypeScript, Python🛂 Visa: Not available for this roleProblems You'll Work On (Consumer)⚙️ How can we bring average interviewer response latency down to 200ms?🧠 How can we fine-tune our models to decrease hallucination and pass the Turing test?🌍 How will the system architecture change as we scale to thousands of users concurrently?Problems You'll Work On (Enterprise)🧱 How do we integrate with customers' internal hiring systems (ATS, scheduling, etc.)?💬 What's the best way to present interview results visually and as fast as possible?🔁 How can we expand to coordinate the entire hiring process end-to-end?You Might Be a Fit If You…Are fluent in React, TypeScript, Python — or can ramp on them quicklyHave shipped production code at impressive companies (FAANG / unicorn / YC / similar)Have founding-engineer or founder experience (strong plus)Came from a top university OR have very clearly displayed accomplishments of what you've builtGenuinely enjoy solving complex engineering problemsLearn quickly, work hard, move with urgencyWant to build at one of the fastest-growing companies in the YC W24 batchBonus If You've…✅ Built consumer products at scale (latency, real-time, fine-tuning)✅ Built enterprise integrations (ATS, scheduling, data aggregation)✅ Worked with LLMs in production (fine-tuning, RAG, agents)✅ Owned 0→1 features end-to-end✅ Built side projects users actually adopted