Head of Growth Marketing

Head of Growth Marketing — Arbitr

US East Coast · Philadelphia area preferred

Build the pipeline engine for a category that's just being born

Every global enterprise is now publishing AI-generated content. Very few can prove it's accurate, on-brand and safe to put in front of customers. Arbitr is the enterprise AI platform that closes that gap, so global companies can publish AI-generated content they can trust.

We're hiring a Head of Growth Marketing to build and lead marketing from the ground up. Your first job is simple to say and hard to do: build a repeatable engine that turns attention into marketing-qualified leads for our sales team. You'll also help define the market we're creating, and you'll do it AI-native, at a pace a traditional marketing team can't match.

What you'll own

• Pipeline, first and always. Design, launch and scale the programs that generate MQLs and sourced pipeline for our enterprise sales team. You'll own the number and the funnel behind it.
• The category story. Shape how we describe Arbitr and the problem it solves. Turn that narrative into messaging, positioning and content that lands with enterprise buyers.
• AI-native execution. Use agents and automation to research markets, create content and run experiments in days, not quarters.
• The channels. Run social media, the website, campaigns and content end to end.
• Data and workflows. Own our marketing data, lead routing and reporting in Attio, so Sales and leadership always know what's working.
• The function. Start hands-on with a lean team and contractors, then hire and grow the team as results compound.

The Plan

• Learn fast Sit with Sales, customers and product. Audit the website, content, Attio data and current lead flow. Agree pipeline targets with leadership.
• Launch Ship your first campaigns and a sharpened category narrative. Stand up the AI-driven content and testing workflow that lets you move at speed.
• Prove and double down Report MQLs and pipeline by channel. Cut what isn't working, scale what is, and put forward your plan for the next two quarters and the team you'll need.

About you

• You have a track record of driving MQLs and pipeline for a B2B SaaS or AI company, and you can show the numbers.
• You've built marketing from scratch, or close to it, and that energises you rather than scares you.
• You work AI-native by default. Agents, automation and rapid testing are how you already operate.
• You test, measure and double down. You'd rather run ten small experiments than one big bet.
• You can tell a sharp story to enterprise buyers and connect it to revenue.
• You're comfortable owning a CRM and marketing data (Attio experience is a plus).
• You like being measured on results and want to grow into a VP of Marketing role.

Bonus points: experience marketing to enterprise content or experience creating or naming a new category.

Where and how you'll work

This role is mostly remote. We'd love you to be in or within easy reach of our US Headquarters in Philadelphia, where you can occasionally come together with some of our sales team to collaborate and share ideas.

You'll join a global, AI-first company with a small, senior team, short decision loops and real ownership from day one. There's a clear path to VP of Marketing as the function grows.

To apply, send your CV and a cover letter telling us about a pipeline engine you built: what you started with, what you did, and what it delivered. Bonus if you show us how you used AI to do it.