The estimated total pay for a Senior Software Engineer In Test at Twitter is $231,240 per year. This number represents the median, which is the midpoint of the ranges from our proprietary Total Pay Estimate model and based on salaries collected from our users. The estimated base pay is $151,625 per year. The estimated additional pay is $79,615 per year. Additional pay could include bonus, stock, commission, profit sharing or tips. The "Most Likely Range" represents values that exist within the 25th and 75th percentile of all pay data available for this role.