Growth Marketing Lead

Role: Growth Marketing Lead
Location: London (Oxford Circus)    
Hybrid: 2 days per week  
Reports to: Director of Brand & Marketing
 
About Monument
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We're building something genuinely rare: a financial brand designed for the mass affluent - the professionals, entrepreneurs and ambitious savers that traditional banks have systematically underserved for decades.
 
We exist to make managing wealth simpler, smarter and more human, treating every client's wealth with the same care as if it were our own.
 
We have over £5 billion in client deposits, a fresh £200 million funding round and a place on the Future Fifty, the UK's top pre-IPO companies. The momentum is real.
 
The Opportunity
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This is a growth ownership role, not a campaign management role. You'll define how Monument acquires, activates and retains clients at scale - building a modern, data-led growth system with rigorous experimentation, sharp performance marketing and lifecycle thinking that goes well beyond the first deposit.
 
For the right person, this is a career-defining role: architect of growth at a pre-IPO challenger bank, in a segment nobody has properly cracked, with the mandate to build it right from day one.
 
What You'll Do

• Build and own growth strategy. Design the growth marketing function from scratch and own the roadmap from insight to outcome.
• Build the experimentation engine. Design and run rapid test-and-learn cycles across creative, channels, targeting and messaging.
• Scale performance marketing. Build and optimise paid channels including search, social and display, with a focus on efficiency, attribution and measurable return.
• Drive lifecycle marketing. Build onboarding, engagement and retention programmes through CRM, email and in-app journeys.
• Optimise the funnel. Own end-to-end conversion performance and drive landing page testing and CRO in partnership with Product and Design.
• Use data to drive decisions. Report clearly on CAC, LTV, conversion rates and channel ROI - and bring those decisions into commercial conversations.
• Balance speed and control. Operate within a regulated environment with confidence, working creatively within constraints without treating compliance as a blocker.
• Leverage technology and AI. Select and implement modern tools and automation to improve efficiency and stay ahead of the curve.

 
The Challenges You'll Tackle

• Building with no blueprint. Foundational decisions on stack, channels, measurement and process will shape how Monument grows for years.
• Winning a discerning audience. The mass affluent don't respond to generic digital playbooks. Your strategies must be sophisticated and genuinely reflective of what this community values.
• Pacing inside a regulated environment. Experimentation and compliance must move together, not in conflict.
• Turning depositors into long-term clients. Lifecycle thinking is as important as top-of-funnel performance.

 
The Mindset

• Bias to Action. Test, learn, iterate - prioritise outcomes over perfection.
• Radical Ownership. Accountable for growth metrics, not just activity.
• Challenge with Intent. Push for better performance through data and evidence.
• Intellectual Humility. Let results guide decisions and adapt when evidence changes.
• Low ego, high standards. Confident in convictions, open in thinking, collaborative in approach.

 
What You Bring

• Proven growth or performance marketing experience in fintech, challenger banks or high-growth digital businesses
• Experience building or significantly scaling a growth function from an early stage
• Deep expertise in paid acquisition channels - building, scaling and optimising them
• A track record of structured experimentation that drives strategic decisions
• Hands-on lifecycle marketing, CRM and customer journey experience
• Strong analytical capability across attribution, CAC, LTV and channel ROAS
• Confidence with modern martech and AI tools; experience selecting and implementing the stack is a plus
• Ability to balance creative instinct with commercial rigour
• Experience in regulated environments is advantageous; the right mindset matters more

 
What's In It For You
Build the growth engine itself - no legacy, genuine commercial backing, foundational decisions that matter. Work in a segment where the problem is genuinely unsolved. Operate with board-level visibility at a critical stage. Be measured by results and impact, not meetings or decks.
 
Our Values
At Monument, our values shape how we make decisions, how we treat each other when things get hard, and how we show up for clients who expect more than standard banking.
We set ambitious goals and hold ourselves to them, not because it looks good, but because our clients’ outcomes depend on it. When something isn’t working, we say so early, learn from it, and move. We don’t wait for perfect conditions, and we don’t protect egos over progress.
We work as a genuine team, which means real collaboration, honest conversations when we disagree, and shared accountability when things go wrong. We know better decisions come from different perspectives, so we actively value the range of experiences and backgrounds our people bring.
We’re always asking whether there’s a smarter way to do what we do, not for the sake of change, but because standing still isn’t an option in the market we’re in.
 
Benefits
Benefits

• 28 days annual leave plus 8 bank holidays
• Performance bonus
• Equity after probation
• Enhanced pension (9% employer contribution + 1% match when you contribute a minimum of 1%)
• Private health insurance with family cover
• Optical and dental cover
• Online GP service for you and your family
• Life assurance
• Flexible hybrid working, including options to work from abroad
• Enhanced parental leave
• Personal learning and development budget