The estimated average salary for a Senior Process Development Engineer at STMicroelectronics is $129,453 per year or $62 per hour, but some professionals have reported earning up to roughly $206,485 per year (90th percentile). The typical pay range is between $106,108 (25th percentile) and $162,377 (75th percentile) annually. This is based on 1 salaries submitted by STMicroelectronics Senior Process Development Engineer professionals on Glassdoor, as of Jun 2026.