The estimated average salary for a Systems Developer/Python Developer at Cognizant is £44,746 per year or £22 per hour, but some professionals have reported earning up to roughly £81,725 per year (90th percentile). The typical pay range is between £33,544 (25th percentile) and £60,732 (75th percentile) annually. This is based on 3 salaries submitted by Cognizant Systems Developer/Python Developer professionals on Glassdoor, as of Jun 2026.