Salary: £45,000 - 49,000 per year Requirements: Previous experience designing and executing conversion optimisation tests Strong practical understanding of web technologies and HTML Familiarity with optimisation tools and platforms, preferably Webtrends Optimize and Optimizely Experience using data analytics tools, preferably Contentsquare and GA4 Awareness and understanding of UX and CX design principles Experience working with web developers Competent in JavaScript and Google Tag Manager Advanced Excel skills Strong communication skills, with the ability to interpret and translate concepts into clear written briefs and designs High attention to detail Ability to work well in teams and independently Hard-working with a strong work ethic and willingness to learn quickly Responsibilities: Develop the testing roadmap alongside the Experimentation Manager, ensuring experimentation outcomes align with our regulatory obligations Design and execute A/B and multivariate tests according to the agreed roadmap to optimise website elements, user journeys and conversion funnels Complete test analysis and communicate insights to internal stakeholders Provide regular updates on progress and performance metrics to ensure transparency across the wider business Become a platform super user, independently developing tests and metrics on the experimentation platform through to delivery Monitor and analyse website and digital performance using web analytics and customer feedback tools Translate insights into actionable recommendations, identifying testing opportunities and iterations to inform the test backlog Work with UX/UI designers and developers to implement user-friendly design principles and improve the overall digital experience Collaborate with marketing, product, technology and UX teams to execute the testing roadmap Act as the key point of contact for cross-functional teams to gather requirements that support their activity and strategy Manage the working relationship with third parties to support the experimentation agenda, delivering agreed tests and analyses Stay up to date with industry trends, emerging technologies and best practices in conversion optimisation, UX/UI design and digital marketing Evaluate competitor websites and benchmark performance to identify opportunities for differentiation and innovation Technologies: Excel Support JavaScript Marketing Web UX UI Design More: Based in London, we are part of the CX and Experimentation team and are focused on driving the enhancement of our direct-to-consumer business through improved conversion rates across our digital platforms. We are AJ Bell, one of the UKs fastest-growing investment platform businesses, providing award-winning solutions for everyone from professional financial advisers to first-time investors. More than 723,000 customers trust us to manage over £108.7 billion of assets. We are proud to be recognised as one of the UKs Best 100 Companies to Work For for six consecutive years and a Great Place to Work in 2025 and 2026, reflecting our supportive and collaborative culture. We offer 26 days holiday increasing with service, a buy/sell scheme, bank holidays, a 7% pension with matched contributions, a discretionary bonus scheme, share schemes including free shares and BAYE, a health cash plan and discounted private healthcare, enhanced family leave subject to qualifying criteria, travel and bike loan schemes, an Employee Assistance Programme, regular social events, learning and development opportunities tailored to you, a casual dress code, and a friendly, supportive team environment. We offer hybrid working with a minimum of 50% of your working time per month spent in the office, and new starters begin with an initial period of full-time office working to help them settle in and build relationships. We are committed to inclusion and diversity and welcome applications from all backgrounds, making hiring decisions based on skills, experience and potential. last updated 24 week of 2026