Available to hire
I’m Isabel Martin, a data analyst with nine years of experience turning data into practical business insights. I transform complex data into clear dashboards and automated processes, collaborating across Purchasing, Marketing, and Sales to drive smarter decisions.\n\nI’m passionate about applying SQL, Python, BI tools, and Generative AI to accelerate development, optimize performance, and support digital transformation. In my roles at Lidl and beyond, I’ve led cloud reporting initiatives, built scalable reports in MIS, Looker Studio, Tableau, and Excel, and supported profitability analysis and process improvements.
Skills
Experience Level
Language
Spanish; Castilian
Fluent
English
Intermediate
German
Intermediate
Work Experience
Data Analyst at Lidl
August 1, 2018 - PresentLed reporting optimization and automation of strategic reports (MIS, Sheets, Looker Studio) replacing Excel-based processes; developed 15+ automated reports in the past year, improving update times and data traceability. Implemented Gemini and ChatGPT to accelerate SQL/Python development and optimize report performance; supported task automation, technical documentation, and executive summaries. Conducted in-depth strategic data analyses to identify trends and inform performance tracking, pilot tests, and strategic projects. Drove digital transformation through cloud reporting environment (SharePoint); provided training and cross-departmental support. Assisted with project profitability analyses, ensuring accurate calculations and financial evaluation.
Supply Chain Analyst at Lidl
December 1, 2016 - August 1, 2018Diagnosed main causes of product loss (packaging issues, inefficient rotation, security system deficiencies) and proposed operational solutions to buyers, improving warehouse and store efficiency. Implemented process controls and monitoring with tools like WAW and Excel to maintain data quality and detect anomalies. Provided project and profitability advisory support to ensure robust financial evaluation of initiatives.
Junior Manager at FloriClean
July 1, 2016 - November 1, 2016Provided administrative support and acquired 2 new clients, resulting in a 20% increase in revenue within two months.
Commercial - Internship at Banco Santander
July 1, 2012 - December 1, 2012Secured new clients, even doubling the minimum daily target.
Education
Master of Business Intelligence at OBS Business School
January 1, 2018 - December 1, 2018Bachelor of Science: Economics at University of Granada
January 1, 2010 - July 1, 2014Erasmus Program at University of Paderborn
January 1, 2014 - January 1, 2014Qualifications
Industry Experience
Retail, Software & Internet, Media & Entertainment, Professional Services
Skills
Experience Level
Hire a Data Analyst
We have the best data analyst experts on Twine. Hire a data analyst in Barcelona today.