The salary trajectory of a a Fullstack JavaScript Developer ranges between locations and employers. The salary starts at £32,240 per year (estimate) and goes up to £97,892 per year (estimate) for the highest level of seniority.
The estimated average salary for a Fullstack JavaScript Developer at ipcortex is £40,444 per year or £19 per hour, but some professionals have reported earning up to roughly £68,231 per year (90th percentile). The typical pay range is between £31,422 (25th percentile) and £52,786 (75th percentile) annually. This is based on 1 salaries submitted by ipcortex Fullstack JavaScript Developer professionals on Glassdoor, as of Jul 2026.