Senior / Lead Data Analyst - Independent Media Agency

Lead Analyst – Marketing Analytics & EffectivenessIndependent Media AgencySalary: up to £70,000 + benefits | London | HybridWorking with a high-performing independent media agency, this is a pivotal Lead Analyst position sitting at the centre of data, effectiveness and commercial decision-making. You’ll be building models that answer real business questions not vanity metrics, influencing where brands invest, which markets they enter, and how media drives growth.To excel at this role you will need the following experienceSolid Python skills - comfortable writing code for data manipulation, modelling, and automation.Pragmatic problem-solver who defaults to the simplest solution that works, not the most technically impressive oneAble to translate analytical findings into a clear narrative, comfortable presenting to clients and non-technical stakeholders.Company & Benefits – Why this is worth your timeIndependent agency with a genuine point of difference combining media, data and behavioural scienceStrong investment in analytics, effectiveness and modelling capabilityExposure to UK and international clients across multiple sectorsReal influence on senior client decisions and new business strategyClear progression path with scope to help mentor and shape a growing analytics teamFlexible working, strong wellbeing support and standout training opportunitiesRole & ResponsibilitiesLead business modelling and forecasting to support high-value marketing decisionsBuild and evolve measurement frameworks across short, medium and long-term performanceTurn complex datasets into clear, commercially actionable insightsWork across MMM, effectiveness and broader measurement challengesCollaborate with planning, activation and client teams to drive integrated thinkingPlay a key role in new business pitches and strategic growth projectsSkills & Experience RequiredStrong background in marketing analytics, data science or media effectivenessProven experience in modelling, forecasting and statistical analysisSolid Python skills - comfortable writing code for data manipulation, modelling, and automationSolid understanding of regression techniques and data interpretationExperience building measurement frameworks or solving effectiveness challengesConfident presenting complex outputs to non-technical stakeholdersExposure to MMM, geo-testing or incrementality work is a strong plusThis is not a dashboard role. If you’re serious about influencing strategy, owning modelling work that drives investment decisions, and stepping into a more senior, commercially impactful position, this is it.