IBM employees working as a Development/Mainframe in United Kingdom have attributed a compensation and benefits rating of 2 out of 5 stars, based on 1 ratings. This is 41% lower than the average of Development/Mainframe professionals at IBM worldwide.
The salary trajectory of a a Development/Mainframe ranges between locations and employers. The salary starts at £41,536 per year (estimate) and goes up to £89,882 per year (estimate) for the highest level of seniority.
The estimated average salary for a Development/Mainframe at IBM is £36,393 per year or £17 per hour, but some professionals have reported earning up to roughly £61,539 per year (90th percentile). The typical pay range is between £27,599 (25th percentile) and £47,988 (75th percentile) annually. This is based on 3 salaries submitted by IBM Development/Mainframe professionals on Glassdoor, as of Jul 2026.