Klaviyo E-Mail Marketing Specialist | Flow Architecture, LTV Growth & Customer Reactivation

We are looking for a highly skilled freelance Klaviyo specialist with a strong background in e-mail marketing for e-commerce brands. You will collaborate closely with our performance marketing team to build revenue-driving e-mail systems — from foundational flows to advanced segmentation and customer lifecycle strategies. Responsibilities Email Flow Development: Build and optimize all core Klaviyo flows (Welcome Series, Abandoned Cart, Browse Abandonment, Post-Purchase, Win-Back, Sunset, etc.) Develop segment-specific flows tailored to distinct customer groups — beyond one-size-fits-all automations Set up advanced segmentation logic, conditional splits, and trigger-based automations A/B test flow structures, messaging angles, and send timing systematically Customer Reactivation & Segmentation: Analyze the existing customer base and develop a structured segmentation and clustering framework (RFM, behavioral, lifecycle-based) Identify reactivation potential within dormant segments and build dedicated win-back strategies Develop and manage segment-specific flow architectures that speak to each cluster individually LTV & CLV Strategy: Evaluate and track Customer Lifetime Value and LTV metrics on a segment level Derive hypotheses and concrete optimization measures to increase CLV over time Build a systematic test roadmap with clear prioritization and expected revenue impact Collaboration & Workflow: Work and communicate via ClickUp Execute tasks based on detailed briefs and independently manage your own workload Contribute strategic input beyond pure execution ✅ Requirements Proven, advanced experience with Klaviyo — core flows are table stakes, we are looking for the next level Deep understanding of customer segmentation, clustering logic, and lifecycle marketing Strong analytical mindset with hands-on experience in LTV/CLV analysis and optimization Ability to translate data into structured hypotheses and actionable flow strategies Experience building segment-specific flow architectures for e-commerce brands Familiarity with ClickUp or willingness to work with it Reliable, structured working style with proactive communication ✉️ To apply, please include: Your track record — specific results achieved with Klaviyo for e-commerce brands (revenue attribution, CLV improvements, reactivation rates, segmentation wins) A short description of your analytical approach: how do you move from customer data → segmentation → flow architecture → measurable outcome? Examples of flows or segmentation frameworks you have built — screenshots or brief case descriptions are sufficient Your weekly availability