The salary trajectory of a a Senior Python Developer ranges between locations and employers. The salary starts at £43,441 per year (estimate) and goes up to £89,882 per year (estimate) for the highest level of seniority.
The estimated average salary for a Senior Python Developer at Cognizant is £67,099 per year or £32 per hour, but some professionals have reported earning up to roughly £113,267 per year (90th percentile). The typical pay range is between £52,631 (25th percentile) and £87,225 (75th percentile) annually. This is based on 3 salaries submitted by Cognizant Senior Python Developer professionals on Glassdoor, as of Jul 2026.