Head of Marketing in London

Atominvest is the operating layer for modern private markets asset managers. We orchestrate investor and portfolio workflows across modular, flexible technology — delivered with an outcomes-first partnership. Our customers are sophisticated private equity, growth equity, and private credit firms managing billions in assets globally.

At Atominvest, you will be working on something very exciting: the future of work, investments and sustainability/ethical investing for the world’s best investors, and delivering a positive impact through this. Based on the growth we are experiencing, we think we’re on to something big.

It won’t be easy. Joining a scale-up business is an amazing and rewarding challenge, pushing well beyond the boundaries of natural growth cycles. You’ll move quicker than feels comfortable, and be brilliant at continually re-prioritising what must get done to keep Atominvest growing year over year at the pace of the best SaaS companies on the planet.

We’re at a pivotal growth stage and are looking for a senior marketing leader who can help define and execute the next chapter of our go-to-market strategy.

The Role

This is a hands-on leadership role for an experienced B2B SaaS marketer who can operate at both strategic and executional levels. As Head of Marketing, you will own Atominvest’s marketing strategy end to end — from positioning and messaging, through demand creation and capture, to revenue impact. You will work closely with the leadership and sales teams to build a scalable, measurable marketing engine that drives pipeline and revenue, not just leads. This role retains meaningful individual contributor responsibility, especially in the near term, while also shaping the long-term marketing vision, systems, and priorities.

What You’ll Be Responsible For

• Demand Creation & Growth
  • Design, execute, and iterate multi-channel demand creation programs that increase both inbound volume and quality.
  • Build and scale campaigns across LinkedIn, Google and other relevant channels.
  • Own content-led demand initiatives including webinars, thought leadership, reports, and subject matter expert driven content.
  • Build a repeatable "content engine" that compounds over time through repurposing and distribution.
• Revenue & Pipeline Accountability
  • Own marketing’s contribution to pipeline and revenue, not just MQLs.
  • Partner closely with Sales to define targets, measure impact, and continuously improve conversion.
  • Use data to prioritise initiatives that move real commercial outcomes.
• Demand Capture & Conversion
  • Build and optimise a high-performing demand capture engine across paid and organic channels.
  • Improve website journeys, conversion rates, and on-site messaging through testing and iteration.
  • Ensure marketing activity translates into meaningful sales conversations.
• Product Marketing & Positioning
  • Own Atominvest’s positioning and messaging across the website, sales materials, and campaigns.
  • Bring the voice of the customer into all messaging through call reviews, interviews, and feedback loops.
  • Build and maintain strong competitive positioning and sales enablement materials.
  • Work closely with Sales to refine narratives, talk tracks, and go-to-market assets.
• Account-Based Marketing (ABM)
  • Design and execute 1:1 and 1:many ABM programs for strategic target accounts.
  • Partner with Sales to align messaging, timing, and outreach.
  • Measure and communicate ABM impact on pipeline and revenue.
• Analytics, Insight & Optimisation
  • Analyse performance across all marketing activities and channels.
  • Rapidly iterate based on data and insight.
  • Clearly tie marketing performance back to business outcomes and revenue.
  • Define and track the right KPIs for a scaling B2B SaaS company.
• Leadership & Collaboration
  • Work closely with the leadership team to shape go-to-market strategy.
  • Act as the voice of the customer internally.
  • Help define priorities, sequencing, and focus as the company scales.
  • Over time, help shape and grow the marketing function.

What We’re Looking For

• Proven experience leading and executing growth initiatives in B2B SaaS.
• Strong track record of driving pipeline and revenue, not just awareness.
• Deep experience in demand generation, content-led growth, and ABM.
• Strong product marketing instincts — messaging, positioning, and competitive differentiation.
• Highly analytical, comfortable with data, experimentation, and optimisation (A/B testing, CRO, attribution).

Ways of Working

• Strategic thinker who can also execute — comfortable being hands-on.
• Confident prioritising in a fast-paced, scaling environment.
• Creative and commercial — able to balance brand, demand, and revenue.
• Self-starter with strong ownership mentality.
• Comfortable running multiple initiatives in parallel, from concept to delivery.

Mindset

• Customer-first and outcomes-focused.
• Curious, experimental, and not afraid to challenge assumptions.
• Energised by building, iterating, and improving rather than maintaining the status quo.

Why This Role Is Compelling

• You’ll own marketing end to end at a critical growth stage.
• You’ll shape the narrative of a category-defining private markets platform.
• You’ll work directly with senior leadership and influence company strategy.
• You’ll have the opportunity to build a marketing engine that truly drives revenue.
• You’ll join a business that values outcomes over activity — in marketing as much as in product.

What we offer

• Competitive compensation (fixed base salary + performance incentives).
• 25 days of holiday per year + bank holidays.
• Hybrid working style (a minimum of 3 days in our central London office is required).
• Cycle2Work scheme.
• Employee Assistance Programme (EAP) to support employee wellness.
• A culture of trust, ownership, responsibility and autonomy in your work.
• An incredible team of smart and mission-driven people to work with.
• Fun working atmosphere.
• Significant growth opportunities.
• Company-wide socials and events.