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# Martech Specialist (Apps)

- **Company:** Leadtech Group
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Data Analysis, BigQuery, Cloud Computing, Data Auditing, Software Debugging, Google Analytics, Marketing Information Systems, Windows Servers, Conversion Tracking, SQL Databases, Data Streaming, Web Analytics, Usage Analysis, Delivery Pipeline, Data Layers, Google Cloud Functions, Complex Event Processing, Workday
- **Published:** August 7, 2026
- **Apply:** https://www.buscojobs.com.es/martech-specialist-apps-en-barcelona-ID-366451117

## About the Role

Fluent English skills: Clear communication with UA, MarTech and Data teams is essential. We're not expecting you to fully understand Peaky Blinders without subtitles - but you should feel confortable communicating in your day-to-day work.

## Description

Web: GTM / tagging, pixels, GA4 or equivalent, SEM / paid social platforms, landing pagesWe're looking for aMarTech specialistwith strong expertise in attribution, tracking, measurement and growth analytics across mobile apps and web products.The ideal candidate understands how app and web marketing ecosystems work: user acquisition, attribution, monetisation, tracking, and performance measurement. They should go beyond a standard Data Analyst in Martech depth and operational know-how, but do not need to build pipelines or infrastructure.This Is The Perfect Opportunity For You IfYou're looking for a place where:You can work on a portfolio of apps, not just oneYou can go deeper into how growth actually works under the hoodYou're surrounded by people who are just as curious (and stubborn) as you areCare about why data doesn't matchEnjoy debating attribution logicAnd won't look at you weird when you say "I checked the raw postbacks"This role sits within MarTech, not within the Marketing / Paid UA team.You'll work closely with UA folks but your focus is measurement, tracking, and infrastructure, not campaign execution. Long story short: making sure the data flows smoothly and is useful.You won't just work on growth: you'll help build the foundations that make it work.What You'll DoOwn and improve attribution & tracking across apps and webMaintain and improve measurement architecture for mobile (MMP-led) and web (tagging / pixels / data layer-led) setupsEnsure app and web data connect cleanly where funnels cross channels (W2A, web-to-app, cross-device journeys)Debug issues across the full funnelApps: Click Install Event RevenueWeb: Visit Landing Tag fire Conversion Revenue / lead / signupTrace breaks across sources and teams, not just in one toolEnsure clean and consistent data acrossMobile: MMP (ideally AppsFlyer), ad networks, product analytics (e.g. Amplitude), monetisation (RevenueCat / Adapty)Web: GTM / tagging, pixels, GA4 or equivalent, SEM / paid social platforms, landing pagesShared layer: event definitions, naming, mapping logic, and reporting inputs used by UA and growthDesign and validate:Apps: postbacks (S2S), event mappings, attribution logic & windowsWeb: conversion events, tag configuration, parameter capture, campaign tracking consistencyWork on Web2App (W2A) flows:Capture parameters on landing pagesEnsure correct stitching into app attributionCollaborate closely with UA, Product, and Engineering:Validate SDK implementationsEnsure events are triggered correctlyRaise and propose fixes when something breaksWork with subscription & monetization data:Integrate platforms like RevenueCat / AdaptyHandle webhook / S2S data flows into the warehouseSupport UA Managers by ensuring:The data they optimize on is actually reliableCampaign signals (events, revenue) are correctly implementedRequirementsFluent English skills: Clear communication with UA, MarTech and Data teams is essential. We're not expecting you to fully understand Peaky Blinders without subtitles - but you should feel confortable communicating in your day-to-day work.Martech & Marketing Knowledge (priority)Must understand growth and measurement across mobile and web:MobileAttribution / MMP: AppsFlyer (preferred), Adjust, SingularMonetisation: RevenueCat, Adapty, SuperwallProduct analytics: AmplitudeWebWeb analytics & tagging: GTM, pixels, event/data layer setupWeb acquisition: SEM, paid social, landing pages, conversion trackingCross-channel measurement: how web and app funnels connect (W2A, web-to-app, etc.)Shared KnowledgeUser acquisition (UA)Ad networks and campaign performance measurementTracking and event instrumentationFunnel analysis and cohort thinking (install/visit trial payment recurrence)Data quality: spotting gaps, discrepancies, and broken trackingTechnical / Analytics RequirementsSQL and comfort working with marketing dataAbility to clean, validate, and analyse tracking data across sourcesUnderstanding of APIs and event-based integrations (supporting automations, not building them)Comfortable collaborating with technical teams on data issues, pipelines, and integrationsExample Of The Level ExpectedInvestigating discrepancies between MMP, product analytics, and monetisation dataAuditing tracking setup (app or web) and defining what's missing or brokenBuilding analyses around UA performance, payment cohorts, or conversion funnelsSupporting growth/UA teams with clear, actionable measurement - not owning infraNice To HaveGCP familiarity: BigQuery, Cloud Functions, cloud-based event processingExperience with conversion APIs (Google, Meta, TikTok, etc.)SKAN / iOS privacy and attribution changes understandingAdMob and hybrid monetisation models understandingExposure to internal martech platforms or conversion routing toolsAnalytics Engineering backgroundMindset: What Makes You a Great FitYou're a doerIf you don't know something ? you figure it out:TutorialsForumsDeep divesTools like Perplexity AIYou:Don't trust data blindlyEnjoy debuggingLike understanding how things actually workYou're comfortable:Exploring reposUnderstanding SDK implementationsProposing (or even making) small fixes when neededOur Values in ActionLevel up Share better ways to track & measureSee it, fix it Broken tracking ? someone else's problemAlways ahead SKAN, ATT, CTV - you're already testingNow means now Critical issues get solved todayTeam spirit Bridge UA, Product, Data & TechOwnership You bring solutions, not just problemsBenefitsWhy join usWork on a portfolio of apps, not just oneBe the bridge between UA and Tech (MarTech layer)Own and shape measurement & attribution foundationsJoin a team that:Checks raw dataQuestions attributionActually cares about how things workAnd yes - this is a place where:"data doesn't match" is not accepted"it's probably SKAN" is not a final answerAnd going one layer deeper is just part of the jobGrowth and career developmentAt Leadtech, we prioritize your growth. Enjoy a flexible career path with personalized internal training and an annual budget for external learning opportunities.Work-Life balanceBenefit from a flexible schedule with flextime 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 BenefitsCompetitive 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 PerksIf 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.Equal Employment Opportunity EmployerLeadtech 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, gender identity, gender expressión and/or disabilities. All we need is your high energy, skills, and willingness to be a part of a great project!LocationYou'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 processed in order 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 writing to our address (Avenida Litoral, *****, 5ta planta. Barcelona. *****) or to the email address .#J-*****-Ljbffr


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