The Department for Work and Pensions has published data about Senior Civil Service posts, including the title, hierarchy and salary. Information is given on a variety of sectors such as Job Centre Plus, disability, employment, welfare and Directgov.
The organogram (PDF) shown above is also available here.
A guide to data sets, explaining the meaning of ‘salary cost of reports’ can be found here.
If you find the data useful, or need any further help, please get in touch.