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 role

Problems 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 quickly




• Have 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 built




• Genuinely enjoy solving complex engineering problems




• Learn quickly, work hard, move with urgency




• Want to build at one of the fastest-growing companies in the YC W24 batch

Bonus 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