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
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💰 - Day rate
400
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🗓️ - Date
June 16, 2026
🕒 - Duration
3 to 6 months
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🏝️ - Location
On-site
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📄 - Contract
Outside IR35
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🔒 - Security
Unknown
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📍 - Location detailed
London, England, United Kingdom
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🧠 - 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