Web: GTM / tagging, pixels, GA4 or equivalent, SEM / paid social platforms, landing pages
We're looking for a MarTech specialist with strong expertise in attribution, tracking, measurement and growth analytics across mobile apps and web products.
The idóneo 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 If
You’re looking for a place where:
You can work on a portfolio of apps, not just one
You can go deeper into how growth actually works under the hood
You’re surrounded by people who are just as curious (and stubborn) as you are
Care about why data doesn’t match
Enjoy debating attribution logic
And 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 Do
Own and improve attribution & tracking across apps and web
Maintain and improve measurement architecture for mobile (MMP-led) and web (tagging / pixels / data layer-led) setups
Ensure app and web data connect cleanly where funnels cross channels (W2A, web-to-app, cross-device journeys)
Debug issues across the full funnel
Apps: Click Install Event Revenue
Web: Visit Landing Tag fire Conversion Revenue / lead / signup
Trace breaks across sources and teams, not just in one tool
Ensure clean and consistent data across
Mobile: 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 pages
Shared layer: event definitions, naming, mapping logic, and reporting inputs used by UA and growth
Design and validate:
Apps: postbacks (S2S), event mappings, attribution logic & windows
Web: conversion events, tag configuration, parameter capture, campaign tracking consistency
Work on Web2App (W2A) flows:
Capture parameters on landing pages
Ensure correct stitching into app attribution
Collaborate closely with UA, Product, and Engineering:
Validate SDK implementations
Ensure events are triggered correctly
Raise and propose fixes when something breaks
Work with subscription & monetization data:
Integrate platforms like RevenueCat / Adapty
Handle webhook / S2S data flows into the warehouse
Support UA Managers by ensuring:
The data they optimize on is actually reliable
Campaign signals (events, revenue) are correctly implemented
Requirements
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.
Martech & Marketing Knowledge (priority)
Must understand growth and measurement across mobile and web:
Mobile
Attribution / MMP: AppsFlyer (preferred), Adjust, Singular
Monetisation: RevenueCat, Adapty, Superwall
Product analytics: Amplitude
Web
Web analytics & tagging: GTM, pixels, event/data layer setup
Web acquisition: SEM, paid social, landing pages, conversion tracking
Cross-channel measurement: how web and app funnels connect (W2A, web-to-app, etc.)
Shared Knowledge
User acquisition (UA)
Ad networks and campaign performance measurement
Tracking and event instrumentation
Funnel analysis and cohort thinking (install/visit trial

📌 Martech Specialist (Apps) (Barcelona)
🏢 Leadtech Group
📍 Barcelona