Lead Conversion Rate Optimisation (CRO) Strategist

Flagstone; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A financial technology firm in London is seeking a Lead CRO Strategist to guide their conversion rate optimisation initiatives. You will lead the CRO strategy, designing and running A/B tests to enhance customer journeys and conversion funnels. The ideal candidate will have multiple years of experience in CRO, a scientific approach, and hands-on knowledge of testing tools. This role offers a hybrid working model, competitive bonuses, and significant professional development opportunities within a supportive and inclusive team environment.

Benefits

Competitive bonus scheme

Flexible benefits budget

Mental wellbeing support

Learning and development budget

Private health care

Life insurance and Income Protection

25 days holiday plus additional leave

Qualifications

• Multiple years leading CRO programmes with a mix of wins and learnings.
• Ability to interpret experiment results using Bayesian and Frequentist statistics.
• Experience running workshops to advocate for experiments and collaborate with stakeholders.

Responsibilities

• Deliver growth-related optimisation using insights and experimentation.
• Design and run a pipeline of A/B and multivariate tests.
• Prioritise experiments based on potential business impact.

Skills

CRO optimisation

A/B testing

Statistical analysis

Collaboration with stakeholders

Experience with VWO or Optimizely

Tools

Visual Website Optimiser

Google Analytics

Heap

Amplitude

Mixpanel

Job description

What is Flagstone?

Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business – where smart people do their best work.

Each definition shares a common thread: our unique culture. It’s our pride and joy. And our competitive advantage.

A feel for our culture:

To revolutionise the savings market, we need to be at our best. But high performance takes more than talent – it takes a culture of kindness, respect, and growth.

That’s why we’re building a diverse, inclusive community, where your voice is heard and valued. Where, with close support and room to develop, you can surpass even your own expectations. And be rewarded for it.

We may not change the world, but can change the world of financial technology. And all it takes is a winning mix of drive, talent, and empathy. Our culture celebrates all three.

But enough about us. Let’s talk about you.

Does this sound like you?

A CRO specialist who has ample experience optimising conversion rate and running experiments based on user insight ideally within a complex product. You have a background in Marketing, Data or Psychology and have successfully applied these techniques to deliver results in A/B tests and other statistical methods. You've run programmes of CRO and you're comfortable guiding cross functional stakeholders to well designed experiments that deliver wins and learnings.

What you’ll do:

As a Lead CRO Strategist your key responsibility will be to deliver growth related optimisation using insight, experimentation and new product features. You will work closely to lead and guide other contributors such as squad leads, product managers and marketing specialists, leveraging data analysts and user researchers to get the insights you need. You will oversee the governance of experiments at Flagstone ensuring appropriate prioritisation of the roadmap, de-risking confounding variables and training on experimental validity.

• Lead the CRO strategy, designing and running a pipeline of A/B and multivariate tests
• Analyse customer journeys and conversion funnels to identity opportunities for improvement
• Translate quantitative and qualitative insights into actionable optimisation hypotheses
• Partner with UX, Product and Marketing to implement test variations and measure outcomes
• Develop frameworks, dashboards and reports to track conversion performance.
• Prioritise experiments based on potential business impact
• Share learnings and recommendations with stakeholders across the company

What you’ll bring:

• Multiple years leading CRO programmes with a mix of wins and learnings. You have a scientific mindset and want others to embrace this.
• Experience in positively impacting conversion rates and other growth metrics using experimentation methods, such as A/B testing, Multivariate testing and serial or benchmark tests.
• Experience running workshops with cross functional stakeholders to prioritise a testing roadmap and being an advocate for experiments within the org, helping others form credible hypotheses for testing.
• Experience balancing both qualitative and quantitative insight through research specialists to inform hypotheses, collaborating with research specialists; and collaboration with designers and copywriters to develop test variants.
• The ability to interpret experiment results through a baseline understanding of Bayesian and Frequentist statistics, relying on tooling or data specialists when required.
• Hands on experience with test tools such as Visual Website Optimiser (VWO) or Optimizely as well as behavioural analytics such as Heap, Amplitude, Mixpanel or Google Analytics a strong advantage

How we reward you:

At Flagstone, the benefits extend beyond false gifts like “fruit and snacks”. Instead, we invest in your health, wealth, and professional development. Here’s a selection of our benefits:

• Hybrid working - Spend at least 1 day a week with your team in our collaborative London office
• Competitive bonus scheme - designed to reward and recognise high performance
• Flexible benefits budget - a pot to fund meaningful benefits for you, whether it's hormone or fertility testing, cancer screening, neuro‑diversity coaching or something that matters for you.
• A range of salary sacrifice options to help you make tax efficient savings on electric cars, nursery schemes, home and tech goods.
• Around the World scheme - 3 months work from anywhere scheme
• Mental wellbeing support – Access therapy and mental health sessions through Spill
• Learning and development – £1,000 personal development budget to help you grow in your role.
• Private health care - Enjoy all the benefits AXA has to offer, including reduced gym memberships and medical history disregarded
• Medical cash plan - To help you with the costs of dental and optical expenses
• Life insurance and Income Protection- four times your annual salary for peace of mind
• Matched pension contributions up to 5%
• 25 days holiday - plus bank holidays, well‑being days and volunteering days
• Enhanced Parental Leave – enhanced maternity, paternity and adoption pay.

All are welcome.

At Flagstone, we’re assembling a diverse team that defies our industry’s norms. Think this role could suit you? We encourage you to apply, no matter your background.