Posted Oct 7, 2026

Growth Marketer (B2B Saas) - Freelancer

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Hi, nice to meet you! Cosmico connects digital talent with organizations and projects where they can create real impact and continue growing. We are both a startup and a curated community of senior professionals across Software Engineering, Product, Design, Marketing, Data, AI and Strategy. We partner with startups, scaleups, enterprises, consulting firms and international organizations. Who are we looking for? We're hiring on behalf of an AI-first internal startup born inside a leading international group, tasked with building one unified, intelligent experience across multiple consumer brands. Two Senior Marketing & Growth Strategists are joining — one per squad — to shape how millions of users discover, trust, and engage with this new Hub. This isn't a support role bolted onto a product team. You'll sit inside the squad from day one, owning the communication and growth strategy that turns product capability into real user engagement — across notifications, in-product messaging, and everything in between. If it works here, it becomes the blueprint every other squad follows. What will you do? Own end-to-end lifecycle communication for your squad: notification copy, in-product CTAs, and conversion experiments across brands Translate new product capabilities into positioning customers actually understand and act on Plan and run multi-channel campaigns and user communications across the Hub Use AI tools daily for personalization, segmentation, and performance analysis Partner closely with data and product teams to align triggers, timing, and content Track squad-level KPIs (CTR, conversion, engagement) and iterate fast based on what the data shows What we're looking for at least 5+ years in growth, digital, or product marketing in SaaS or B2C/SMB environments Strong writing skills paired with sharp analytical instincts Track record running data-informed campaigns and A/B tests Genuine daily use of AI-augmented marketing workflows - hands-on experience with tools like Claude Code is a strong plus Comfortable working autonomously, with high attention to detail and reliability Fluent English, written and spoken Project Details Full-time, fully remote Europe or nearby time zones preferred Start date: ASAP Duration: 1 year contract Ratecard: 300€/day