Grace Walker
grace.walker@example.com+44 20 7946 0214linkedin.com/in/gracewalkergithub.com/gracewalker
Summary
Data analyst with 6 years turning operational and commercial data into clear reporting and decisions.
Strong in SQL, Excel, Tableau, Python, dashboard design, and presenting findings to non-technical stakeholders.
Experience
Senior Data Analyst
Brightwave Retail | London, UK | April 2022 - Present
- Own commercial reporting for a retail group with 340 stores and 2.8M loyalty members.
- Built Tableau dashboards for sales, margin, and stock that replaced 22 manual spreadsheets and saved 14 hours per week.
- Analysed promotion performance in SQL, identifying a campaign that cut margin by 4% and recommending its retirement.
- Automated weekly reporting with Python and scheduled queries, reducing report turnaround from 2 days to 3 hours.
- Present monthly trading reviews to category, finance, and operations leaders with clear recommendations.
Data Analyst
Meridian Insurance | Leeds, UK | June 2019 - March 2022
- Analysed claims and policy data in SQL and Excel to support pricing and reserving decisions.
- Built a renewal propensity report that helped retention teams lift renewals by 7% in one quarter.
- Created Power BI dashboards for claims ageing used by 45 weekly active stakeholders.
- Cleaned and reconciled broker data across 12 sources, reducing reporting discrepancies by 33%.
Junior Data Analyst
CityFit | Sheffield, UK | September 2017 - May 2019
- Produced membership, attendance, and churn reports for 38 gym sites using SQL and Excel.
- Built a cancellation analysis that identified two onboarding gaps driving 21% of early churn.
- Standardised KPI definitions across regional managers, reducing conflicting numbers in reviews.
- Automated a monthly attendance pack with pivot tables and macros, saving 6 hours per cycle.
Skills
Querying
SQL, Excel, Python, VBA
Visualisation
Tableau, Power BI, Looker Studio, Dashboards
Analysis
Cohort analysis, Forecasting, KPI design, Data cleaning, Statistics
Tools
BigQuery, Snowflake, Git, Google Sheets
Education
- MSc Data Science, University of Edinburgh
- BSc Mathematics, University of Leeds