A fast-growing US-based company is looking for a CRM Specialist, a key role within the marketing team focused on building, optimizing, and executing high-performing email campaigns. This position is designed for a hands-on profile with strong experience in Klaviyo, capable of creating visually engaging campaigns while ensuring performance, deliverability, and seamless rendering across devices and email clients. Responsibilities include building and executing image-based email campaigns in Klaviyo, design and optimize emails for dark mode rendering, developing automated flows, audience segmentation, A/B tests, deliverability best practices, mobile rendering, fallback strategies, and collaboration with design and marketing teams. Requirements include proven hands-on experience with Klaviyo, experience building image-heavy email templates, understanding rendering across devices, dark mode optimization, segmentation and lifecycle marketing, analytical mindset, and attention to detail. Employment terms note: Part-time engagement with flexible hours, 100% Remote, contractor model. Compensation: salary in USD. Apply via rehire.ar/jobs.