Head of Data (Marketing)

Company: Harnham
Apply for the Head of Data (Marketing)
Location: London
Job Description:

Head of Data

Location: London (Hybrid – 3 days in office)

Salary: £100k – £120k

Overview

A leading, fast-growing, private equity-backed media group is looking for a Head of Data to build and lead its data capability from the ground up. This is a high-impact role where data sits at the core of commercial performance, operational efficiency, and strategic decision-making.

The Role

You will be responsible for defining and delivering the organisation’s data strategy, while remaining hands‑on in building the foundations. This includes developing a centralised data warehouse, integrating multiple business systems, and delivering high‑quality dashboards and insights to senior stakeholders.

You’ll work closely with leadership across commercial, finance, and operations, acting as a key partner in driving data‑led decision making across the business.

Key Responsibilities

  • Build and scale a centralised data platform and reporting infrastructure
  • Design and implement ETL pipelines and data architecture
  • Develop dashboards and insights to support leadership and commercial teams
  • Define data governance, quality, and best practices
  • Build and lead a high‑performing data team

What We’re Looking For

  • Proven experience building data functions from scratch in a fast‑paced environment
  • Strong technical expertise across data warehousing, ETL, and analytics
  • Experience with tools such as Power BI, SQL, Python, and cloud platforms (Azure/AWS/GCP)
  • Strong stakeholder management skills, with the ability to influence at senior level
  • Ideally experience within marketing, media, or agency environments

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Posted: April 17th, 2026