Head of Marketing

Head of Marketing

Location: New York, US (preferred), London, UK (considered) | Type: Full-time | Reports to: CEO

About Fifth Dimension

Fifth Dimension (5D) is an AI-native workflow automation platform purpose-built for real estate asset management and investment. We automate the complex, error-prone processes of collecting, analysing, and making decisions from disparate data sources across real estate document types — using a combination of specialised AI models tailored for real estate applications.

Founded by Kate Jarvis (CEO — Stanford PhD in linguistics and systems, with machine learning expertise) and Johnny Morris (Co-founder & CPO — 18+ years in real estate data, former Chief Data Officer), 5D is backed by tier-1 investors including Anthemis, Seedcamp, and Speedinvest. Our clients include some of the world's largest real estate firms across the US, APAC, and Europe, with the US and APAC as our primary growth markets. We are scaling aggressively toward $30M ARR.

We are a team of smart, humble, curious people who move fast and hold themselves to a high bar. We are looking for experienced operators who bring both strategic thinking and relentless execution.

The Role

We're hiring our first Head of Marketing to own and build 5D's marketing function from the ground up. This person will be a hands-on, high-hustle operator — not a brand strategist who delegates everything. You'll challenge every assumption about how marketing dollars are spent, find smarter ways to reach the right audiences, and build channels that generate real pipeline with creativity and commercial rigour. We don't have all the answers on what our marketing machine should look like — we're hiring you to own and shape it.

Our core markets are the US and APAC, and you'll need to build and scale marketing that works across both — understanding that buyer profiles, competitive landscapes, and adoption curves differ significantly between them. You will be responsible for building scalable, repeatable go-to-market engines across content, events, thought leadership, community, and digital channels — all in service of pipeline generation and brand authority in these markets. You'll also own how 5D is positioned in a market where AI-native platforms are still widely misunderstood by traditional buyers — ensuring our messaging cuts through the noise and lands with clarity at every touchpoint.

This could be your first Head of role — and we think that's a strength, not a risk. We want someone who's been the senior marketing manager or director who was the real engine behind the results, and is now ready to step up, own the function, and prove they can lead it. You'll have the support of an existing team of contractors and the opportunity to build out your team as you prove what works.

What You'll Do or Manage

Your mandate is twofold. First, drive revenue growth now — build the marketing engine that fills pipeline with high-ACV prospects and helps close deals faster. Second, build the brand authority that makes 5D the obvious and only choice for real estate firms who are slower to adopt but represent massive long-term value. The largest institutional players (the CBREs, Knight Franks, and Greystar-scale firms) default to build-over-buy and move cautiously on technology adoption. Your job is to accelerate their FOMO and ensure that when they're ready, 5D is already the name they trust most.

This means you'll set the strategic direction — deciding which channels to invest in, which to kill, and how marketing resources are deployed against near-term pipeline versus long-term brand. You'll design the operational systems that make marketing repeatable and measurable. And you'll be hands-on in execution, especi