Account Executive

Karumi (YC F25); New York (NY); On-site; USD 100,000 - 140,000; Full time

Job summary

Karumi (YC F25) in New York is looking for an Account Executive to lead the sales cycle and turn inbound and outbound leads into revenue. You will be the first dedicated sales hire, working alongside the founders to create and refine the sales playbook.

The ideal candidate has over 5 years of experience closing B2B SaaS deals. You will be expected to run live demos, negotiate, and maintain customer relationships within HubSpot. The position offers a competitive salary of $100–140K with potential OTE of $200–300K.

Qualifications

• 5+ years of experience in closing B2B SaaS deals, preferably in a startup.
• Comfortable selling evolving technical AI products.

Responsibilities

• Own the complete sales cycle from prospecting to closing deals.
• Develop and refine the sales playbook for the team.
• Handle inbound and outbound sales motions.

Skills

Closing B2B SaaS deals

Technical product selling

Self-directed work

Discovery and demo instincts

Tools

HubSpot

Job description

Karumi is building an AI agent that joins video calls and delivers live, interactive product demos autonomously — answering questions, navigating the product in a real browser, and booking follow-ups, 24/7 and in any language. We're a Y Combinator company with real traction (thousands of demos delivered and a growing book of paying B2B SaaS customers) and we're now growing our go-to-market team.

As a Account Executive, you'll own the full sales cycle and help us turn strong inbound demand and an outbound motion into closed revenue. You'll be the first dedicated sales hire, working directly with the founders to define our playbook from the ground up.

What You'll Do

• Own the full cycle: prospect, qualify, run discovery, demo, negotiate, and close B2B SaaS customers.
• Build and refine the sales playbook — messaging, qualification criteria, objection handling, and pricing conversations.
• Run an outbound motion to larger SaaS players while converting high-intent inbound leads.
• Partner with the founders and engineering on customer needs, feedback, and deployment.
• Keep CRM (HubSpot) clean and use call/demo data to sharpen the funnel.

Who You Are

• 5+ years closing B2B SaaS deals, ideally at an early-stage / high-growth startup.
• Comfortable selling a fast-evolving, technical AI product to technical and GTM buyers.
• Self-directed and happy operating with little structure — you build the process, not inherit it.
• Strong discovery and demo instincts; you can run a deal end to end.
• Excited about AI agents and the future of how software is sold.

Your First 90 Days

• By day 30: you'll have led 20 live demos and closed your first $10K+ deal.
• By day 60: you'll be running the full cycle independently and feeding real deal insights back into our pricing and messaging.
• By day 90: you'll have codified our objection-handling wiki — the playbook that trains both the team and the Karumi agent on how to handle the questions that come up in every deal.

Why Karumi

• Real ownership on the GTM team at a YC-backed, revenue-generating AI company.
• Direct impact on the playbook, pricing, and the team you'll eventually help build.
• $100–140K base with $200–300K OTE. Based in New York, in office.

The Team

Karumi was founded by Pablo Omeñaca and Toni López, who previously built StackAI together — Pablo as founding engineer and then COO leading customer implementations, and Toni as an early engineer building its agentic systems. They helped grow StackAI from early revenue to roughly $10M ARR.