The estimated average salary for a Software Development Engineer III/Senior Engineer at Amazon is £74,708 per year or £36 per hour, but some professionals have reported earning up to roughly £141,672 per year (90th percentile). The typical pay range is between £56,852 (25th percentile) and £102,057 (75th percentile) annually. This is based on 33 salaries submitted by Amazon Software Development Engineer III/Senior Engineer professionals on Glassdoor, as of Jun 2026.