Principal Software Engineer Job Trends in the South East

Principal Software Engineer
England > South East

The median Principal Software Engineer salary in the South East is £68,000 per year, according to job vacancies posted during the 6 months leading to 26 November 2025.

The table below compares current salary benchmarking and summary statistics with the previous two years.

6 months to
26 Nov 2025
Same period 2024 Same period 2023
Rank 258 284 266
Rank change year-on-year +26 -18 +153
Permanent jobs requiring a Principal Software Engineer 17 39 3
As % of all permanent jobs in the South East 0.18% 0.35% 0.040%
As % of the Job Titles category 0.20% 0.36% 0.042%
Number of salaries quoted 4 32 3
10th Percentile £61,525 £47,250 -
25th Percentile £65,688 £70,938 £81,250
Median annual salary (50th Percentile) £68,000 £75,000 £82,500
Median % change year-on-year -9.33% -9.09% +20.00%
75th Percentile £69,975 £112,500 £85,625
90th Percentile £73,530 - £86,750
England median annual salary £90,750 £100,000 £78,750
% change year-on-year -9.25% +26.98% -1.56%

All Permanent IT Job Vacancies
South East

For comparison with the information above, the following table provides summary statistics for all permanent IT job vacancies in the South East. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of permanent jobs in our overall sample.

Permanent vacancies in the South East with a recognized job title 8,632 10,695 7,072
% of permanent jobs with a recognized job title 91.31% 95.05% 94.61%
Number of salaries quoted 5,424 5,963 5,085
10th Percentile £28,000 £31,250 £29,741
25th Percentile £35,000 £41,250 £38,500
Median annual salary (50th Percentile) £49,000 £55,000 £52,500
Median % change year-on-year -10.91% +4.76% -4.55%
75th Percentile £65,000 £70,000 £67,500
90th Percentile £80,000 £85,000 £81,250
England median annual salary £55,000 £57,500 £60,000
% change year-on-year -4.35% -4.17% -

Principal Software Engineer
Job Vacancy Trend in the South East

Historical trend showing the proportion of permanent IT job postings featuring 'Principal Software Engineer' in the job title relative to all permanent IT jobs advertised in the South East.

Principal Software Engineer job vacancy trend in the South East

Principal Software Engineer
Salary Trend in the South East

Salary distribution trend for Principal Software Engineer job vacancies in the South East.

Salary distribution trend for Principal Software Engineer job vacancies in the South East

Principal Software Engineer
Salary Histogram in the South East

Salary distribution for jobs citing Principal Software Engineer in the South East over the 6 months to 26 November 2025.

Salary histogram for Principal Software Engineer in the South East

Principal Software Engineer
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 Principal Software Engineer within the South East region over the 6 months to 26 November 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
Isle of Wight - 8 £68,000 - 1
Thames Valley +10 6 £62,500 -40.48% 8
Oxfordshire - 6 £62,500 - 6
East Sussex - 2 - -
Hampshire +37 1 - - 1
Principal Software Engineer
England

Principal Software Engineer Skill Set
Top 25 Co-Occurring Skills & Capabilities in the South East

For the 6 months to 26 November 2025, Principal Software Engineer job roles required the following skills and capabilities in order of popularity. The figures indicate the absolute number of co-occurrences and as a proportion of all permanent job ads across the South East region featuring Principal Software Engineer in the job title.

1 17 (100.00%) Software Engineering
2 8 (47.06%) Computer Science
2 8 (47.06%) Degree
3 7 (41.18%) Ada
3 7 (41.18%) Ada 95
3 7 (41.18%) Agile
3 7 (41.18%) BPSS Clearance
3 7 (41.18%) Chartered Engineer
3 7 (41.18%) Configuration Management
3 7 (41.18%) ISO/IEC 12207
3 7 (41.18%) UML
3 7 (41.18%) Waterfall
4 5 (29.41%) Energy Management
4 5 (29.41%) Full-Stack Development
4 5 (29.41%) Storage Management
5 2 (11.76%) C++
6 1 (5.88%) Computer Science Degree
6 1 (5.88%) JavaScript
6 1 (5.88%) Linux
6 1 (5.88%) Physics
6 1 (5.88%) Python
6 1 (5.88%) QML
6 1 (5.88%) Qt
6 1 (5.88%) Translating Business Requirements
6 1 (5.88%) User Experience

Principal Software Engineer Skill Set
Co-Occurring Skills & Capabilities in the South East by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

General
1 1 (5.88%) Manufacturing
1 1 (5.88%) Social Skills
Libraries, Frameworks & Software Standards
1 1 (5.88%) QML
1 1 (5.88%) Qt
Miscellaneous
1 5 (29.41%) IoT
1 5 (29.41%) Smart Energy
2 1 (5.88%) Self-Driving Car
Operating Systems
1 1 (5.88%) Linux
Processes & Methodologies
1 17 (100.00%) Software Engineering
2 8 (47.06%) Computer Science
3 7 (41.18%) Agile
3 7 (41.18%) Configuration Management
3 7 (41.18%) UML
3 7 (41.18%) Waterfall
4 5 (29.41%) Energy Management
4 5 (29.41%) Full-Stack Development
4 5 (29.41%) Storage Management
5 1 (5.88%) Physics
5 1 (5.88%) Translating Business Requirements
5 1 (5.88%) User Experience
Programming Languages
1 7 (41.18%) Ada
1 7 (41.18%) Ada 95
2 2 (11.76%) C++
3 1 (5.88%) JavaScript
3 1 (5.88%) Python
Qualifications
1 8 (47.06%) Degree
2 7 (41.18%) BPSS Clearance
2 7 (41.18%) Chartered Engineer
3 1 (5.88%) Computer Science Degree
Quality Assurance & Compliance
1 7 (41.18%) ISO/IEC 12207