The salary trajectory of a a Fullstack JavaScript Developer ranges between locations and employers. The salary starts at £32,215 per year (estimate) and goes up to £97,900 per year (estimate) for the highest level of seniority.
The estimated average salary for a Fullstack JavaScript Developer at ipcortex is £40,406 per year or £19 per hour, but some professionals have reported earning up to roughly £68,209 per year (90th percentile). The typical pay range is between £31,387 (25th percentile) and £52,750 (75th percentile) annually. This is based on 1 salaries submitted by ipcortex Fullstack JavaScript Developer professionals on Glassdoor, as of Jun 2026.