Email Developer - Klaviyo

Klaviyo Email Developer - CRM - MarTech - £350–£425 per day - Outside IR35 - Fully Remote The Email Developer is responsible for designing, building, and optimizing high-performing email and SMS campaigns that drive engagement, retention, and revenue. This role blends technical execution with lifecycle marketing strategy, ensuring campaigns are scalable, performant, and aligned with deliverability best practices. -Build responsive, accessible HTML/CSS email templates and modular components for campaigns and automated flows -Implement and maintain lifecycle automations, triggered journeys, and transactional emails in Klaviyo -Develop dynamic email content using Django or similar templating frameworks -Build and support custom actions, webhooks, and integrations using JSON and Python -Troubleshoot email rendering across major inbox providers and devices; perform QA and deliverability checks -Optimize email templates and flows for performance, personalization accuracy, load time, and A/B testing -Maintain and document component libraries, deployment processes, and technical standards -Build and manage SMS campaigns and automated flows in Postscript, including segmentation and compliance -Collaborate cross-functionally to ensure technical execution aligns with campaign goals and timelines -Support continuous improvement of lifecycle infrastructure and automation reliability Qualifications -Strong proficiency in HTML/CSS for responsive email development -Experience building automated flows, triggered journeys, and transactional messaging -Familiarity with dynamic content frameworks (Django or similar) -Working knowledge of JSON and Python for automation and integrations -Understanding of deliverability best practices and cross-client QA processes -Experience with SMS platforms such as Postscript or equivalent -Knowledge of CRO, A/B testing, and lifecycle marketing concepts -Highly organized with the ability to manage multiple builds and maintain documentation -Strong communication skills and a collaborative, problem-solving mindset Fascinating time, to join a growing and dynamic organisation - make contact today to find out more!