The salary trajectory of a Data Engineer ranges between locations and employers. The salary starts at £48,866 per year (estimate) and goes up to £83,269 per year (estimate) for the highest level of seniority.
The estimated average salary for a Data Engineer at FirstGroup is £133,540 per year or £64 per hour, but some professionals have reported earning up to roughly £214,747 per year (90th percentile). The typical pay range is between £104,731 (25th percentile) and £172,043 (75th percentile) annually. This is based on 5 salaries submitted by FirstGroup Data Engineer professionals on Glassdoor, as of Jun 2026.