Senior Customer Analyst

Senior Customer Analyst London | Hybrid (3 days office)Up to £80,000

We're working with a fast-growing telecoms business that has undergone significant transformation following PE investment. Over the last 4-5 years, the company has built a highly respected data function spanning Data Governance, BI, Analytics, Data Science, and Digital - and continues to invest heavily in data as a core growth driver.

Their analytics team is award-winning and widely recognised in the industry, with continued expansion planned.

The Team

You'll join a high-performing analytics function reporting into the Head of Analytics. The team includes:

  • Analytics (4 Analysts incl. this hire)

  • 3 Data Scientists

  • BI team

  • Digital team

This is a hands-on, senior individual contributor role with potential to mentor junior analysts in future.

The Role

This is a commercially focused analytics position where you will directly influence decision-making across marketing, finance, and commercial leadership teams.

You'll work closely with stakeholders including MDs, Finance Directors, Marketing Directors, and Commercial leaders.

Key focus areas include:

  • Customer segmentation & behavioural analytics

  • Churn, retention, loyalty & CLTV analysis

  • Marketing and campaign performance analysis

  • Commercial performance and ROI measurement

You will be expected to go beyond reporting - delivering actionable insight that shapes strategy and drives measurable business impact.

Example Projects
  • Understanding drivers of customer churn and improving retention strategies

  • Identifying high-value customer segments and optimising marketing approaches

  • Measuring marketing ROI and campaign effectiveness

  • Exploring untapped data sources (customer service, device, location data)

  • Evaluating opportunities such as eSIM adoption and connected devices

What We're Looking For
  • Strong SQL skills (complex querying, joins, large datasets)

  • Python or R experience preferred

  • Strong commercial mindset with ability to translate data into insight

  • Experience in customer analytics (telecoms, subscription, or consumer businesses ideal)

  • Strong understanding of churn, retention, CLTV, and marketing analytics

  • Confident communicator with experience engaging senior stakeholders

  • Proactive, curious, and able to work independently in a fast-moving environment

Why Join?
  • High-growth business backed by PE investment

  • Analytics is a core strategic function with strong executive buy-in

  • Award-winning data team with strong reputation in the market

  • Significant opportunity to influence commercial strategy

  • Access to rich, under-utilised datasets and real-world impact projects

Interview Process
  1. Intro chat with Head of Analytics (15 mins)

  2. Case study + experience interview (60 mins total)

  3. Final sign-off interview

If you're an experienced analytics professional who enjoys turning complex customer data into clear commercial decisions, this is a strong opportunity to have real business impact in a high-growth environment.

Find out more and apply via the link below!

Job Details

Company
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £80,000 per annum
Posted