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Senior SEM Specialist - Web Subscriptions at leadtech. About US. At Leadtech, we’ve been redefining digital businesses since 2009, creating innovative online solutions that reach millions of users every month. With a diverse team of over 700 members from 23+ nationalities, we’re united by a passion for creativity and collaboration. . We specialize in delivering user-centric experiences across web and mobile platforms, where people can connect with our products like never before.. We’re proud of our global reach and committed to fostering an inclusive workplace where every individual contributes to our shared vision of bringing cutting-edge projects to life. Learn more about our journey and mission on our  . About us. page!. . About the Role. We are looking for a Senior SEM Specialist to join our Marketing team. You will be responsible for owning and scaling paid search campaigns across Google Ads and other SEM platforms, with a strong focus on driving profitable user acquisition for our web subscription products. You will be hands-on, working closely with Paid Social, SEO, Analytics, and Product teams to maximize ROI.. What You’ll Do. . Plan, execute, and optimize SEM campaigns across Google Ads, Bing, and other relevant search networks.. . Develop keyword strategies, ad copy, and bidding approaches tailored for subscription funnels.. . Manage budgets and pacing to maximize efficiency while hitting growth and profitability goals.. . Analyze performance metrics (CAC, LTV, ROAS, churn, retention) to inform decision-making.. . Run structured A/B tests on creatives, landing pages, and bidding strategies.. . Collaborate with Data & Analytics to improve attribution, reporting, and cohort-based insights.. . Stay up-to-date on SEM industry trends, automation tools, and platform updates.. . . 5+ years of hands-on SEM experience (Google Ads required; Bing a plus).. . Proven experience managing large budgets (€1M+/year).. . Strong analytical skills; advanced user of Excel and familiar with tools like Looker or Google Data Studio.. . Experience with subscription business models (LTV, churn, payback period) strongly preferred.. . Proven expertise in Google Analytics, Google Tag Manager, and other attribution/analytics tools.. . Collaborative mindset with experience working cross-functionally across creative, product, and analytics.. . Data-driven with a test-and-learn approach.. . Excellent communication skills in English; Spanish is a plus.. . Why Join Us. . Work in a dynamic, data-driven environment where marketing decisions are tied to business impact.. . Direct ownership of SEM strategy with freedom to test, optimize, and scale.. . Competitive salary package with performance bonus.. . Flexibility to work remotely or hybrid from our Barcelona HQ.. . Join a diverse, international team in one of Europe’s fastest-growing subscription tech company. . Company Location: Spain.