Senior Marketing Manager (New York)

Fifth Dimension is ushering in a golden age of work, where boring tasks are automated away, the right data are always at your fingertips, and maximal creativity is encouraged.

We’re an early stage start-up with ample runway, backed by leading European and American investors.

The founders, Johnny Morris and Dr. Kate Jarvis, are both data nerds. But that's not all. Johnny’s got 16 years’ experience in Real Estate, our GTM niche. Kate’s got a PhD in Linguistics from Stanford plus 12 years’ CPTOing across Silicon Valley and London startups. We're demanding, excitable, encouraging of experimentation, adoring of bad puns, and have built our business on a foundation of compassion and kind challenge.

Role Overview

Do you know how to inspire legacy industries to evolve, with innovative software? Can you help build trust with SEC-regulated businesses without boring them to tears? You might be the Senior Marketing Manager for us.

We're looking for an agile, experienced marketeer who can execute at pace as we prepare for post-Series A growth. This is a hands-on role for someone who thrives in SaaS startups and can move from strategy to delivery without missing a beat.

You'll own marketing across our highest-impact channels—ABM campaigns, customer storytelling, real estate industry events, and PR. You'll work with our existing contractors (events, design) and fractional strategic support, and we expect you'll bring in additional specialists as needed to build a scalable marketing engine that generates pipeline and drives revenue growth.

You must have deep experience in enterprise B2B marketing and be able to execute independently while collaborating closely with our commercial and product teams across New York and London.

Location : New York, US

What You'll Do

Account-Based Marketing (ABM)

Design and execute targeted campaigns for priority enterprise accounts

Partner with the commercial team on land-and-expand strategies

Create personalized content and outreach for key accounts

Customer Storytelling & Content

Turn compelling customer stories from clients like Boston Property Group and Curbline into case studies and testimonials that showcase real ROI

Build thought leadership content positioning Fifth Dimension as the AI company for real estate

Ensure messaging reinforces our core differentiator : secure, purpose-built AI with 98.49% accuracy

Events

Own strategy and ROI for our presence at 12-15+ annual real estate industry conferences (CREtech, NMHC, ULI, IMN, Realcomm, etc.) - from directing booth design, to developing relationships with event organizers, to tracking performance and optimising approach

Develop our community-building strategy and hosted events program, including curated gatherings for ICPs in key markets

Work with our events contractor who handles end-to-end execution and logistics

Marketing Operations & Reporting

Establish marketing goals, KPIs, and reporting cadence

Implement lead tracking, attribution, and campaign performance systems

Build scalable processes and coordinate with contractors for execution support

Cross-Functional Collaboration

Align marketing efforts with commercial team priorities and sales cycles

Partner with product team to ensure accurate representation of capabilities

Support customer success initiatives that drive retention and expansion

Required Experience & Qualifications

Must-Haves

5-7+ years of B2B SaaS marketing experience, focussed on legacy enterprise businesses

• At least 3 years in execution-focused roles
• Exceptional writer and storyteller, without a boring bone in your body
• Familiarity with marketing automation platforms (HubSpot, Marketo, Salesforce)
• Highly knowledgeable about enterprise B2B sales cycles and complex, multi-stakeholder buying processes
• Experience with ABM campaigns and tools (6sense, Demandbase, or similar)
• Comfortable working in early-stage, high-growth environments ($1-10M ARR range preferred)
• Self-starter who thrives with minimal supervision and can manage multiple workstreams simultaneously
• Data-driven mindset with strong analytical skills and comfort with marketing metrics
• Experience working with contractors, agencies, and cross-functional teams
• Based in US with flexibility for 25-30% travel to events, client meetings and visiting UK office

Nice-to-Haves

Compensation

We're building something extraordinary and we want extraordinary people. Our benefits package goes beyond the standard startup offering—from tailored support for life's challenges (IVF, gender-affirming care, ADHD diagnosis, and more), to meaningful parental leave.

Tailored support for exceptional challenges, such as :

Enhanced Parental Leave

About Fifth Dimension AI

Fifth Dimension AI has developed an AI operating system purpose-built for real assets. Unlike general-purpose AI tools, Ellie is trained on real estate data and understands industry nuances, delivering 98.49% accuracy in data extraction - outperforming both traditional methods and human benchmarks.

The platform integrates into your file folder system and other data sources, enabling real estate professionals to process complex documents, conduct due diligence, and diagnose problematic portfolio performance without changing how they work. Our clients include leading asset managers, financiers, and acquisition teams at firms like BXP and Eastdil Secured.

New York is our second office, with the HQ in London, and we’ve set aggressive growth targets for 2026 - 10x revenue, continue global customer expansion, and more. We operate with a land-and-expand GTM strategy, starting with one team and expanding across the enterprise as value is demonstrated.

Our values center on speed, directness, and exceptional execution. We're mental health-conscious (CEO is a trained mental health first aider), collaborative, and focused on building products that genuinely transform how real estate professionals work.

Fifth Dimension AI is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.