Senior Data Analyst

Company: Momentum Worldwide
Apply for the Senior Data Analyst
Location: London
Job Description:

Overview

In this Senior Analyst role you lead end-to-end data projects for marketing clients, guiding junior analysts and shaping data-driven strategies across channels. You’ll work on flagship accounts or multiple clients, supporting new business growth and elevating team practices. You’ll apply SQL/Python, leverage cloud data sources, and use AI tools to optimize creative and media decisions. You play a key role in turning data into actionable recommendations for non-technical stakeholders, driving measurable performanceImpact.

Responsibilities

  • Lead end-to-end data projects and manage junior analysts
  • Shape strategies that use data to drive smarter, cross-channel decisions
  • Support new business growth and promote best practices across the team
  • Deliver and manage ongoing test-and-learn plans for omnichannel marketing
  • Lead initiatives to leverage first-party data for above-the-line media buys
  • Drive data quality through progressive data capture efforts
  • Utilize RAPP’s AI tools to power creative optimization
  • Create multi-variate customer segments and measure marketing impact

Key requirements

  • Hands-on with data using SQL and/or Python; able to query data from GCP, AWS, or Azure
  • Understand basic statistical concepts (feature importance, regression, clustering; causation vs correlation)
  • 4+ years in an agency, consulting, or client-side role with customer datasets
  • Ability to translate data into tangible recommendations for non-technical audiences
  • Strong communication skills with internal teams and clients; comfortable presenting to non-technical stakeholders
  • Curious, detail-oriented, asks questions to understand the ‘why’ behind data
  • Comfort working independently and driving projects with limited oversight
  • Experience coordinating across multiple teams and contributing to group deliverables
  • strong communicator
  • curiosity
  • detail-oriented
  • SQL
  • Python
  • GCP

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Posted: September 14th, 2026