Overview
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. Degrees are nice, but here we care about your skills, curiosity, and hands-on experience.
Responsibilities
* Own the tech side of web tracking, challenge assumptions, and build scalable, future-proof solutions.
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
* 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
* Awareness of AEO (Answer Engine Optimization) — understanding how search and discovery through LLMs (ChatGPT, Perplexity, etc.) works
* Experience with CMPs / consent management tools (e.g., Didomi, OneTrust, Usercentrics, or similar). Hands-on with Legal teams, verified implementations in DevTools, and signals firing correctly. Familiar with GDPR, DMA, Consent Mode V2, Purposes, Vendors, Notice
* 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)
Big plus
* Python (or other scripting languages) for automation
* Data Engineering / Analytics Engineering exposure (e.g., Airbyte, dbt, Dataform)
* Experience with Affiliation platforms (e.g., Impact, Rakuten, Awin, or similar)
* Experience with AdServers (e.g., Google Campaign Manager, Xandr, Smart, Adform)
Nice-to-have
* Experience with other tagging systems (Tealium, Adobe Launch, etc.)
* Experience with Customer Data Platforms (CDPs) such as Segment, mParticle, Rudderstack or Composable CDPs like Census, Hightouch
* Experience with dashboards and BI tools — Looker Studio, Tableau, Power BI
* Experience with CRMs and marketing automation platforms, especially the technical side (Braze, Iterable, OneSignal, Hubspot, Brevo, ActiveCampaign, etc.)
* App-side exposure: Paid UA for apps, SKAN, and SDKs in mobile apps
* Understanding of server-to-server integrations beyond GTM
Benefits
WHY SHOULD YOU JOIN US?
* Growth and career development: We prioritize your growth with a flexible internal training path and an annual budget for external learning opportunities
* Work-Life balance: Flexible schedule (flextime 7:00–9:30, 15:30–18:00), fully remote or Barcelona office, free Friday afternoons, and a 35-hour workweek in July and August
* Comprehensive benefits: Competitive salary, full-time permanent contract, private health insurance (including dental and psychological services), and 25 days of vacation plus your birthday off
* Unique Perks: Barcelona office with free coffee, fruit, snacks, game room, and rooftop terrace
Join us in an environment where you7re free to innovate, learn, and grow alongside passionate professionals. At Leadtech, you7ll 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 can choose to work from the Barcelona office, remotely, or a mix. The Barcelona Blue Building offers stunning views and office perks.
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 protecciondedatos@LeadTech.com.
Seniority level
* Mid-Senior level
Employment type
* Contract
Job function
* Other
* Industries: IT Services and IT Consulting
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