The salary trajectory of a a Senior Data Analyst ranges between locations and employers. The salary starts at £37,623 per year (estimate) and goes up to £105,440 per year (estimate) for the highest level of seniority.
The estimated average salary for a Senior Data Analyst at O2 is £52,202 per year or £25 per hour, but some professionals have reported earning up to roughly £83,823 per year (90th percentile). The typical pay range is between £41,586 (25th percentile) and £66,415 (75th percentile) annually. This is based on 10 salaries submitted by O2 Senior Data Analyst professionals on Glassdoor, as of Jul 2026.