Senior MarTech Specialist (Web Projects)

We are looking for a Senior MarTech Specialist with strong expertise in web tracking projects, ideally with experience in companies where subscriptions are the main revenue stream. This is not a "ticket executor" role. We want someone who owns the tech side of web tracking, challenges assumptions, and builds scalable, future-proof solutions. And one more thing: we don't care what you studied 🎓. Master's in Advanced Translation? Great. Law & Politics double degree? Fantastic. Finance vocational training? Perfect. Degrees are nice, but here we care about your skills, curiosity, and hands-on experience. Requirements Must-have • Deep expertise in Google Tag Manager (client-side + server-side) — proven experience implementing and maintaining S2S GTM setups • Experience with web projects, ideally subscription-based businesses • Hands-on experience with online payments (Stripe, card gateways) and the ability to capture and process payment data for analytics and attribution • Experience with GA4 and Amplitude. Knowledge of Adobe Analytics (or similar enterprise platforms) is a plus — but GTM expertise is mandatory • Strong background in web tagging and tracking (events, funnels, data layers) • Solid understanding of how Ad Networks work — e.g., the difference between Campaign / Ad Group / Ad, how CAPI or parameter-based tracking works, and how UA teams rely on these setups. You don't need to run campaigns, but you need to speak their language • Solid understanding of Technical SEO fundamentals (indexation, sitemaps, canonicals, hreflangs, Core Web Vitals) • Experience working with SEO teams. Many tracking challenges start with landing pages, organic funnels, or GSC, so speaking the same language helps • Awareness of AEO (Answer Engine Optimization) — understanding how search and discovery through LLMs (ChatGPT, Perplexity, etc.) works, so you can help evaluate how much value we're getting from these appearances and how we attribute them • Experience with CMPs / consent management tools (e.g., Didomi, OneTrust, Usercentrics, or similar). Not just basic setup — you've worked hands-on with Legal teams, verified implementations in DevTools, and ensured that signals are firing correctly. Concepts like GDPR, DMA, Consent Mode V2, Purposes, Vendors, Notice and so on are not foreign to you — you've danced with them more than a few times • Practical experience with cloud systems (ideally GCP: BigQuery, Cloud Functions, Pub/Sub, APIs) • SQL proficiency to query and consume data in a Data Warehouse (e.g., BigQuery, Databricks) • Fluent English (written & spoken). Don't worry — you don't need to be Shakespeare. And if you don't even know who Shakespeare is... you don't need to be Harry Styles either. What matters is that we can communicate clearly, understand each other, and even have some fun while doing it. Big plus • Python (or other scripting languages) for automation. We're not looking for a Data Engineer, but you should feel comfortable writing small scripts when needed — for example, to pull data from an API, send events into GCP, clean or transform datasets before pushing them into a warehouse, spin up a quick Cloud Function to avoid manual work, or even make life easier for the SEO team by processing Google Search Console data • Data Engineering / Analytics Engineering exposure (e.g., Airbyte, dbt, Dataform). You won't be replacing our Data team — they're the experts — but having this background makes collaboration smoother and helps reduce small bottlenecks • Experience with Affiliation platforms (e.g., Impact, Rakuten, Awin, or similar). We don't run affiliation today, but we'd love to launch it, and your experience can help us design the right tracking and attribution setup from day one • Experience with AdServers (e.g., Google Campaign Manager, Xandr, Smart, Adform). While our main model is subscriptions today, we'd love your help exploring future monetization streams Nice-to-have Experience with other tagging systems (Tealium, Adobe Launch, etc.). GTM is mandatory, but knowing others is a plusExperience with Customer Data Platforms (CDPs) such as Segment, mParticle, Rudderstack or Composable CDPs like Census, HightouchExperience with dashboards and BI tools — e.g., Looker Studio, Tableau, Power BI — to help Paid UA teams analyze test results, especially in attribution-sensitive casesExperience with CRMs and marketing automation platforms, especially the technical side (Braze, Iterable, OneSignal, Hubspot, Brevo, ActiveCampaign, etc.)App-side exposure: • Understanding of Paid UA for apps, including SKAN and how it impacts iOS campaigns • Basic knowledge of how SDKs in mobile apps work, and how to reduce dependencies on app releases (e.g., using Remote Config or similar). Even if this role is web-focused, we want you to learn from our App MarTech Specialists and become a 360 MarTech profile over time • Experience with server-to-server integrations beyond GTM (direct API setups, custom pipelines) Benefits WHY SHOULD YOU JOIN US? Growth and career development • At Leadtech, we prioritize your growth. Enjoy a flexible career path with personalized internal training and an annual budget for external learning opportunities Work-Life balance • Benefit from a flexible schedule with flextime (7 - 9:30 a.m. start, 3:30 - 6 p.m. end) and the option of working full remote or from our Barcelona office. Enjoy free Friday afternoons with a 7-hour workday, plus a 35-hour workweek in July and August so you can savor summer! Comprehensive benefits • Competitive salary, full-time permanent contract, and top-tier private health insurance (including dental and psychological services) • 25 days of vacation plus your birthday off, with flexible vacation options—no blackout days! Unique Perks • If you wish to come, in our office in Barcelona you'll find it complete with free coffee, fresh fruit, snacks, a game room, and a rooftop terrace with stunning Mediterranean views • Additional benefits include ticket restaurant and nursery vouchers, paid directly from your gross salary Join us in an environment where you're free to innovate, learn, and grow alongside passionate professionals. At Leadtech, you'll tackle exciting challenges and be part of a vibrant team dedicated to delivering exceptional user experiences Equal Employment Opportunity Employer Leadtech is an Equal Employment Opportunity (EEO) Employer, which means we encourage applications from people with different backgrounds, interests, and personal circumstances. Our team welcomes applicants regardless of their race, gender, age, religion, nationality, sexual orientation, and/or disabilities. All we need is your high energy, skills, and willingness to be part of a great project! Location You'll have the flexibility to choose whether you'd like to come to the office every day, from time to time, or work fully remote. We want you to find the best combination for you. If you prefer to be surrounded with amazing people, our exceptional office is in Barcelona's Blue Building, located right on the city's seafront. Besides our stunning views, you'll enjoy our office perks such as free fruit, snacks, and coffee and you'll also be able to take part in our Mario Kart and table tennis competitions. The personal data you provide will be used to manage your candidacy for the corporate selection processes that fit your profile. If you wish, you can exercise your rights of access, rectification or cancellation by sending a letter to Avenida Litoral, 12-14, 5ta planta, Barcelona 08005, or emailing us at protecciondedatos@LeadTech.com, including a document that validates your identity.