CSX employees working as Sr Software Engineer I in US have attributed a compensation and benefits rating of 4 out of 5 stars, based on 18 ratings. This is in line with the average of Sr Software Engineer I professionals at CSX worldwide.
The salary trajectory of a Sr Software Engineer I ranges between locations and employers. The salary starts at $153,671 per year (estimate) and goes up to $384,489 per year (estimate) for the highest level of seniority.
The estimated average salary for a Sr Software Engineer I at CSX is $181,205 per year or $87 per hour, but some professionals have reported earning up to roughly $263,261 per year (90th percentile). The typical pay range is between $150,967 (25th percentile) and $221,150 (75th percentile) annually. This is based on 2 salaries submitted by CSX Sr Software Engineer I professionals on Glassdoor, as of Jul 2026.
Sr Software Engineer I professionals typically earn between $73 and $106 per hour.
Sr Software Engineer I professionals typically earn between $12,581 and $18,429 monthly.