Supply Chain Levels for Software Artifacts (SLSA)
England > South East
The table below provides summary statistics and salary benchmarking for jobs advertised in the South East requiring SLSA skills. It covers vacancies from the 6 months leading up to 14 September 2025, with comparisons to the same periods in the previous two years.
| 6 months to 14 Sep 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 299 | - | - |
| Rank change year-on-year | - | - | - |
| Permanent jobs citing SLSA | 1 | 0 | 0 |
| As % of all permanent jobs advertised in the South East | 0.011% | - | - |
| As % of the Libraries, Frameworks & Software Standards category | 0.11% | - | - |
| Number of salaries quoted | 1 | 0 | 0 |
| 10th Percentile | - | - | - |
| 25th Percentile | £51,250 | - | - |
| Median annual salary (50th Percentile) | £52,500 | - | - |
| 75th Percentile | £53,750 | - | - |
| 90th Percentile | - | - | - |
| England median annual salary | £53,750 | - | - |
All Software Libraries and Frameworks
South East
SLSA falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring technical specification, industry standards, software libraries and framework skills in the South East.
| Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills | 948 | 2,458 | 2,420 |
| As % of all permanent jobs advertised in the South East | 10.49% | 19.06% | 26.54% |
| Number of salaries quoted | 652 | 1,700 | 1,971 |
| 10th Percentile | £35,000 | £36,750 | £36,250 |
| 25th Percentile | £43,750 | £43,911 | £47,500 |
| Median annual salary (50th Percentile) | £60,000 | £56,763 | £60,000 |
| Median % change year-on-year | +5.70% | -5.40% | +4.35% |
| 75th Percentile | £73,750 | £71,250 | £75,000 |
| 90th Percentile | £87,500 | £82,500 | £85,000 |
| England median annual salary | £67,500 | £65,000 | £67,500 |
| % change year-on-year | +3.85% | -3.70% | +3.85% |
SLSA
Job Locations in the South East
The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing SLSA within the South East region over the 6 months to 14 September 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.
| Location | Rank Change on Same Period Last Year |
Matching Permanent IT Job Ads |
Median Salary Past 6 Months |
Median Salary % Change on Same Period Last Year |
Live Jobs |
|---|---|---|---|---|---|
| Buckinghamshire | - | 1 | £52,500 | - | 2 |
| Thames Valley | - | 1 | £52,500 | - | 2 |
| SLSA England |
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SLSA
Co-occurring Skills and Capabilities in the South East by Category
The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:
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