Principal Demo Engineer

Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey – from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Founded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support.

What's the opportunity? Fin is an AI-first company revolutionizing how customer service is delivered today. Our entire platform is driven by a set of advanced AI Agents, who blend automation with empathy, setting a new standard in customer experiences at scale. At Fin, you’ll help shape the future of AI-first customer experiences, showing our customers the transformative power of artificial intelligence.

About the Role: There's an enormous difference between building a Fin demo and deploying Fin in production. A Solutions Engineer can stand up an impressive AI agent demo in an afternoon. Making that demo reliably show what Fin actually does - across every channel, every persona, every vertical, in front of the world's most discerning buyers - is a different discipline entirely. As a founding Fin Demo Engineer, you'll own the platform and tooling that powers every Fin demo at Intercom - the environments, seeded data, integrations, reset infrastructure, and reusable building blocks our Solutions Engineers rely on every day. You won't be running demos yourself. You'll be the force multiplier behind the people who do.

Aside from building the systems to support demos, you will embed with our product teams to support net new product releases before they go-to-market. You will understand how to position the product, collaborate on talk tracks with PMM, and figure out how to build simulations, hands‑on training materials and challenges to train the field in our products. It's also a role that lives at the intersection of Product Engineering, PMs, GTM, Enablement, and SE. You'll need to be a talker - comfortable juggling lots of relationships across the company, and moving work forward through clarity, not just code.

Why This Role Matters: How we demo Fin shapes how the market understands AI in customer service. This role sits at the intersection of Product, GTM, PMM, Enablement and Engineering - with outsized leverage on revenue.

What will I be doing?

• Own the Fin demo platform end-to-end.
• Build first‑class demo features into Fin itself.
• Use AI to prepare demos.
• Let SEs move faster.
• Show Fin across every surface it touches.
• Partner with Enablement.
• Stay one step ahead of the product roadmap.
• Codify what works.

What skills do I need?

Must‑haves:

• 6+ years building software in a customer‑facing technical role – Solutions Engineering, Developer Relations, Founding Engineer, or similar.
• Hands‑on AI/LLM product experience.
• Strong full‑stack chops: TypeScript on the front end plus one strong backend language (Ruby, Go, or Python).
• Deep familiarity with SDKs, wrappers, and developer‑facing APIs.
• RESTful APIs and SaaS integrations are second nature.
• Design sensibility.

Nice-to-haves:

• Background in customer support, contact center, or CX tooling.
• Experience building internal platforms or developer tooling at scale.
• Prior work that bridged engineering and revenue.

We are a well‑treated bunch, with awesome benefits! If there’s something important to you that’s not on this list, talk to us!

Competitive salary and equity in a fast‑growing start‑up. We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen. Unlimited access to Claude Code and best‑in‑class AI tools; experimentation.