

Harnham
Senior Data Analyst
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Senior Data Analyst based in London (2 days onsite) for a 3-month contract at £400 per day. Requires strong marketing technology experience, proficiency in SQL, Python/R, and Power BI, with a focus on customer segmentation in telecommunications or retail.
🌎 - Country
United Kingdom
💱 - Currency
£ GBP
-
💰 - Day rate
400
-
🗓️ - Date
June 16, 2026
🕒 - Duration
3 to 6 months
-
🏝️ - Location
On-site
-
📄 - Contract
Outside IR35
-
🔒 - Security
Unknown
-
📍 - Location detailed
London, England, United Kingdom
-
🧠 - Skills detailed
#Customer Segmentation #Strategy #R #SQL (Structured Query Language) #Microsoft Power BI #Data Analysis #Python #BI (Business Intelligence)
Role description
Location: London (2 days onsite)
Contract Length: 3 months
IR35 Status: Outside IR35
Rate: £400 per day
Start Date: ASAP (max 2 weeks' notice)
Overview
We're looking for a highly proactive Senior Data Analyst with strong experience in marketing technology and performance analytics. This role requires someone who can uncover insights, drive initiatives, and influence stakeholders through data-led recommendations.
Key Responsibilities
• Proactively identify opportunities and demonstrate value to stakeholders through actionable insights
• Influence and challenge stakeholders with data-driven recommendations
• Perform customer segmentation and deep customer behaviour analysis
• Analyse product interactions and customer journeys to optimise performance
• Deliver insight-led recommendations across:
• Customer add-on history
• Retention strategies and test-and-learn approaches
• Identification of the most profitable customer segments
• Monitor and analyse churn and marketing performance metrics
• Explore and leverage untapped data sources, including:
• Handset data
• Customer service data
• Assess emerging products and advise on strategic direction
Skills & Experience
• Proven experience as a Senior Data Analyst within marketing or customer-focused environments
• Strong background in customer segmentation, loyalty, and marketing analytics
• Experience translating data into clear commercial insight and strategy
• Proficiency in:
• SQL
• Python and/or R
• Power BI
Industry Experience
• Experience within telecommunications or fast-paced retail environments is highly desirable
Key Traits
• Proactive, inquisitive, and commercially driven
• Strong stakeholder management and influencing skills
• Ability to turn complex data into clear, actionable insights
Location: London (2 days onsite)
Contract Length: 3 months
IR35 Status: Outside IR35
Rate: £400 per day
Start Date: ASAP (max 2 weeks' notice)
Overview
We're looking for a highly proactive Senior Data Analyst with strong experience in marketing technology and performance analytics. This role requires someone who can uncover insights, drive initiatives, and influence stakeholders through data-led recommendations.
Key Responsibilities
• Proactively identify opportunities and demonstrate value to stakeholders through actionable insights
• Influence and challenge stakeholders with data-driven recommendations
• Perform customer segmentation and deep customer behaviour analysis
• Analyse product interactions and customer journeys to optimise performance
• Deliver insight-led recommendations across:
• Customer add-on history
• Retention strategies and test-and-learn approaches
• Identification of the most profitable customer segments
• Monitor and analyse churn and marketing performance metrics
• Explore and leverage untapped data sources, including:
• Handset data
• Customer service data
• Assess emerging products and advise on strategic direction
Skills & Experience
• Proven experience as a Senior Data Analyst within marketing or customer-focused environments
• Strong background in customer segmentation, loyalty, and marketing analytics
• Experience translating data into clear commercial insight and strategy
• Proficiency in:
• SQL
• Python and/or R
• Power BI
Industry Experience
• Experience within telecommunications or fast-paced retail environments is highly desirable
Key Traits
• Proactive, inquisitive, and commercially driven
• Strong stakeholder management and influencing skills
• Ability to turn complex data into clear, actionable insights






