The estimated average salary for a Applications Support Developer at MediaMath is £30,007 per year or £14 per hour, but some professionals have reported earning up to roughly £42,921 per year (90th percentile). The typical pay range is between £24,853 (25th percentile) and £36,230 (75th percentile) annually. This is based on 1 salaries submitted by MediaMath Applications Support Developer professionals on Glassdoor, as of Jul 2026.