The salary trajectory of a a Software Development Engineer ranges between locations and employers. The salary starts at £50,429 per year (estimate) and goes up to £113,508 per year (estimate) for the highest level of seniority.
The estimated average salary for a Software Development Engineer at CSG is £61,457 per year or £30 per hour, but some professionals have reported earning up to roughly £127,699 per year (90th percentile). The typical pay range is between £45,167 (25th percentile) and £87,666 (75th percentile) annually. This is based on 1 salaries submitted by CSG Software Development Engineer professionals on Glassdoor, as of Jun 2026.