The salary trajectory of a a Java Full Stack Engineer ranges between locations and employers. The salary starts at £47,710 per year (estimate) and goes up to £119,766 per year (estimate) for the highest level of seniority.
The estimated average salary for a Java Full Stack Engineer at Cognizant is £49,622 per year or £24 per hour, but some professionals have reported earning up to roughly £84,610 per year (90th percentile). The typical pay range is between £38,470 (25th percentile) and £65,017 (75th percentile) annually. This is based on 4 salaries submitted by Cognizant Java Full Stack Engineer professionals on Glassdoor, as of Jun 2026.