Digital CRO Developer

British Heart Foundation; United Kingdom; Hybrid; GBP 40,000 - 50,000; Full time

Job summary

A leading charity organization is seeking a passionate CRO Developer to join their Digital CRO & Analytics team. In this hybrid role, you'll collaborate with UX/UI designers to implement A/B and multivariate tests that optimize online platforms, driving charitable income growth. Your front-end development skills in HTML, CSS, and JavaScript will be essential in delivering impactful digital experiences, all while supporting the mission to help millions of hearts beat stronger for longer.

Qualifications

• Strong front-end development skills (HTML, CSS, JavaScript).
• Experience in delivering digital experiences from optimisations to complex tests.
• Knowledge of custom tracking code, especially datalayer events.

Responsibilities

• Design and implement A/B and multivariate tests.
• Collaborate with UX/UI and content teams.
• Analyze requirements and translate briefs into technical solutions.

Skills

Front-end development (HTML, CSS, JavaScript)

A/B and multivariate testing

Accessibility best practices

Collaborative teamwork

Design systems

Job description

Are you passionate about using your technical skills to make a real difference? We re looking for an exceptional CRO Developer to join our Digital CRO & Analytics team, where your expertise will fuel charitable income growth through data-driven experimentation and impactful digital experiences.

In this role, you ll be at the heart of a dynamic team of specialists, developers, and analysts, collaborating closely with UX/UI, Content & Journeys, Product and other partners. Together, you ll drive our mission forward supporting life‑saving research and helping millions of hearts beat stronger for longer.

With your strong front‑end development skills (HTML, CSS, JavaScript), you ll design and implement A/B and multivariate tests that shape how people interact with our online platforms. You ll take visual briefs, analyse requirements, build front‑end experiences within our testing tools and oversee the successful launch and monitoring of each test.

About you

As an experienced developer, you ll deliver a spectrum of digital experiences, ranging from simple optimisations to complex, multi‑page experiments. You ll work together with UX/UI designers, bringing ideas to life while working within a design system and always with a keen eye on accessibility and best UX practices. If you ve previously held a design role, that s even better!

You ll serve as the go‑to technical expert for our CRO team, translating briefs into robust solutions, meeting requirements, and providing trusted advice on feasibility, best practice, and timelines. Over time, you ll master our testing tools, ensuring seamless test setup and rollout.

Your attention to detail and knowledge of QA means every user gets an optimal experience, regardless of device or browser. You ll also support the wider CRO team by reviewing and troubleshooting tests, and your knowledge of custom tracking code (particularly datalayer events) will make you an indispensable part of our team.

This is your chance to help shape digital journeys that increase donations and event sign‑ups, all while building your own skills and career in a supportive, purpose‑led environment. If you re ready to turn technical challenges into meaningful change, we d love to hear from you.

Working arrangements

12‑month fixed term contract from start date. Start date ASAP.

This is a hybrid role, where your work will be split between your home and at least one day per week, on average, in our London Office. This may vary from time to time, so you will need to work in a flexible way to unlock your best work for our cause.