Data Analyst

October 23, 2026

Hybrid

Middle

Barcelona, Spain

Also worth knowing

Mandatory office attendance
2 days per week
English is required

Description

Wall Street English is hiring a Data Analyst for its Data Analytics and BI team in Barcelona, reporting to the Director of Analytics and BI. The role partners with multiple Product teams to turn information into action: exploring datasets, running A/B test analysis, building dashboards and defining KPIs. The team also prototypes AI and ML solutions and uses AI assistants to speed up analysis, reporting and documentation, with human verification at the centre. The position is full-time on a hybrid schedule of two days in the office and three days from home.

Responsibilities

Manipulate and explore new datasets to uncover insights
Conduct A/B test analysis and prepare comprehensive reports
Design, build, and improve dashboards and reports with high-quality visualizations
Deliver actionable insights to Product Managers and multiple Product teams
Define KPIs, measure feature performance, and support product decisions with data
Identify where data can solve problems within product systems, including AI and ML prototypes
Use AI tools such as LLM assistants and AI-assisted coding to accelerate analysis, queries and reporting
Critically validate AI outputs before relying on them
Help Product teams adopt AI-enabled analytics and self-serve data, building data literacy
Follow an Agile methodology and keep workload and progress transparent
Lead projects from start to finish with moderate support

Requirements

Degree in a STEM subject or equivalent practical experience
3 to 5 years of professional experience in an analytics role
Advanced SQL and Excel skills
Strong data visualization skills, such as Power BI
Experience with Python or R
Experience with web and app tracking data
Practical experience using AI assistants with the judgment to verify their outputs
Native or bilingual English