The salary trajectory of a Senior Engineer II ranges between locations and employers. The salary starts at $94,380 per year (estimate) and goes up to $378,803 per year (estimate) for the highest level of seniority.
The estimated average salary for a Senior Engineer II at Biogen is $194,849 per year or $94 per hour, but some professionals have reported earning up to roughly $281,265 per year (90th percentile). The typical pay range is between $162,665 (25th percentile) and $236,926 (75th percentile) annually. This is based on 14 salaries submitted by Biogen Senior Engineer II professionals on Glassdoor, as of Jul 2026.
Senior Engineer II professionals typically earn between $78 and $114 per hour.
Senior Engineer II professionals typically earn between $13,555 and $19,744 monthly.