GTM Implementation Manager

La Fosse; Greater London; On-site; GBP 70,000 - 85,000; Full time

Job summary

La Fosse seeks a GTM & Implementation Manager to own the architecture for web and native apps, design the data layer, and implement GA4 event schemas + ecommerce tracking.

Lead server-side GTM deployments and maintain app tracking with mobile attribution integrations as the function evolves. SQL/BigQuery skills are a plus but not essential.

Qualifications

• GTM and GA4 implementation expertise required.
• Mature understanding of data layer architecture and event schemas.
• Experience deploying server-side GTM is a plus.

Responsibilities

• Own end-to-end GTM architecture for web and native apps.

Skills

GTM expertise

GA4 event schemas

Data layer design

Ecommerce tracking

Server-side GTM

Mobile attribution

SQL/BigQuery (nice-to-have)

End-to-end ownership

Tools

Google Analytics 4 (GA4)

Google Tag Manager

BigQuery

Job description

GTM & Implementation Manager - £70k + 10% bonus – London 1dpw

La Fosse are working with a world leading entertainment platform, looking to reduce reliance on third parties and bring a Google Tag Manager and App Analytics expert into the team.

This is a hands‑on role where you’ll have complete end‑to‑end ownership over the architecture for web and native app platforms. You will design and govern the data layer, implement GA4 event schemas and ecommerce tracking, run server‑side Google Tag Manager deployments, and maintain app tracking and mobile attribution integrations as this function evolves and develops.

SQL and BigQuery would be a plus but is far from essential.

This is a great opportunity to work in a growing team within an iconic brand - please reach out to find out more.