The salary trajectory of a a Senior Developer - .NET ranges between locations and employers. The salary starts at £32,698 per year (estimate) and goes up to £56,343 per year (estimate) for the highest level of seniority.
The estimated average salary for a Senior Developer - .NET at Cognizant is £63,909 per year or £31 per hour, but some professionals have reported earning up to roughly £94,844 per year (90th percentile). The typical pay range is between £53,108 (25th percentile) and £78,007 (75th percentile) annually. This is based on 8 salaries submitted by Cognizant Senior Developer - .NET professionals on Glassdoor, as of Jul 2026.