Principal Software Engineer Job Trends

Principal Software Engineer
UK

The median Principal Software Engineer salary in the UK is £85,000 per year, according to job vacancies posted during the 6 months leading to 3 December 2025.

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

6 months to
3 Dec 2025
Same period 2024 Same period 2023
Rank 550 580 640
Rank change year-on-year +30 +60 +200
Permanent jobs requiring a Principal Software Engineer 92 160 71
As % of all permanent jobs in the UK 0.17% 0.25% 0.14%
As % of the Job Titles category 0.19% 0.27% 0.15%
Number of salaries quoted 61 114 39
10th Percentile £70,000 £67,500 £67,500
25th Percentile £72,500 £75,000 £70,000
Median annual salary (50th Percentile) £85,000 £100,000 £80,000
Median % change year-on-year -15.00% +25.00% -
75th Percentile £112,500 £116,250 £94,375
90th Percentile £118,750 £147,500 £115,000
UK excluding London median annual salary £75,900 £75,000 £77,000
% change year-on-year +1.20% -2.60% +9.91%

All Permanent IT Job Vacancies
UK

For comparison with the information above, the following table provides summary statistics for all permanent IT job vacancies. 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 UK with a recognized job title 49,330 59,759 47,838
% of permanent jobs with a recognized job title 90.32% 94.19% 95.24%
Number of salaries quoted 31,185 33,142 37,246
10th Percentile £28,250 £32,500 £31,250
25th Percentile £36,000 £42,500 £42,500
Median annual salary (50th Percentile) £55,000 £57,500 £60,000
Median % change year-on-year -4.35% -4.17% -
75th Percentile £75,000 £77,500 £80,000
90th Percentile £92,500 £95,000 £97,500
UK excluding London median annual salary £47,500 £52,500 £52,500
% change year-on-year -9.52% - -

Principal Software Engineer
Job Vacancy Trend

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.

Principal Software Engineer job vacancy trend in the UK

Principal Software Engineer
Salary Trend

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

Salary distribution trend for Principal Software Engineer job vacancies in the UK

Principal Software Engineer
Salary Histogram

Salary distribution for jobs citing Principal Software Engineer over the 6 months to 3 December 2025.

Salary histogram for Principal Software Engineer in the UK

Principal Software Engineer
Top 14 Job Locations

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 UK over the 6 months to 3 December 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
England +58 85 £85,000 -15.00% 47
UK excluding London +52 68 £75,900 +1.20% 39
London +13 24 £110,000 +2.33% 13
South East +32 20 £68,000 -17.58% 16
Work from Home +24 20 £100,000 -6.98% 24
South West +25 18 £75,000 -6.25% 6
East of England +47 14 £80,000 +28.00% 14
Midlands +49 5 £75,000 +3.45%
Scotland +15 5 - - 3
North West +43 4 £90,000 +12.50% 1
West Midlands +40 4 - -
North of England +27 4 £90,000 +28.57% 1
Wales - 2 £75,900 -
East Midlands +16 1 £75,000 -21.05%

Principal Software Engineer Skill Set
Top 30 Co-Occurring Skills & Capabilities

For the 6 months to 3 December 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 featuring Principal Software Engineer in the job title.

1 92 (100.00%) Software Engineering
2 23 (25.00%) Agile
2 23 (25.00%) AWS
2 23 (25.00%) Computer Science
3 22 (23.91%) Microservices
4 21 (22.83%) Degree
5 20 (21.74%) React
6 16 (17.39%) CI/CD
7 15 (16.30%) Kubernetes
7 15 (16.30%) TypeScript
8 14 (15.22%) Full-Stack Development
8 14 (15.22%) Kafka
9 13 (14.13%) Ada
9 13 (14.13%) Ada 95
9 13 (14.13%) BPSS Clearance
9 13 (14.13%) Chartered Engineer
9 13 (14.13%) Configuration Management
9 13 (14.13%) ISO/IEC 12207
9 13 (14.13%) Mentoring
9 13 (14.13%) UML
9 13 (14.13%) Waterfall
10 11 (11.96%) Coaching
10 11 (11.96%) DevOps
10 11 (11.96%) Problem-Solving
10 11 (11.96%) Python
11 10 (10.87%) Java
11 10 (10.87%) Security Cleared
12 8 (8.70%) AI
12 8 (8.70%) Azure
12 8 (8.70%) Docker

Principal Software Engineer Skill Set
Co-Occurring Skills & Capabilities 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:

Application Platforms
1 3 (3.26%) Confluence
Cloud Services
1 23 (25.00%) AWS
2 8 (8.70%) Azure
2 8 (8.70%) GCP
3 7 (7.61%) Amazon EKS
4 5 (5.43%) Amazon CloudWatch
4 5 (5.43%) Amazon MSK
4 5 (5.43%) Amazon OpenSearch
5 2 (2.17%) Amazon Bedrock
5 2 (2.17%) Amazon EventBridge
5 2 (2.17%) Amazon Kinesis
5 2 (2.17%) Amazon SQS
5 2 (2.17%) AWS Lambda
5 2 (2.17%) AWS Step Functions
5 2 (2.17%) Azure AKS
5 2 (2.17%) Serverless
6 1 (1.09%) Amazon ECS
6 1 (1.09%) Cloud Computing
6 1 (1.09%) Cloudflare
6 1 (1.09%) SaaS
Communications & Networking
1 2 (2.17%) Multicast
Database & Business Intelligence
1 5 (5.43%) PostgreSQL
2 4 (4.35%) MongoDB
3 2 (2.17%) BigQuery
3 2 (2.17%) DynamoDB
3 2 (2.17%) Elasticsearch
4 1 (1.09%) Big Data
4 1 (1.09%) NoSQL
Development Applications
1 8 (8.70%) Git
2 5 (5.43%) Cypress.io
2 5 (5.43%) Jenkins
2 5 (5.43%) JIRA
3 2 (2.17%) Ant
3 2 (2.17%) Plastic SCM
3 2 (2.17%) SonarQube
3 2 (2.17%) webpack
4 1 (1.09%) GitLab
General
1 5 (5.43%) Banking
1 5 (5.43%) Finance
2 2 (2.17%) Public Sector
2 2 (2.17%) Retail
2 2 (2.17%) Social Skills
3 1 (1.09%) Inclusion and Diversity
3 1 (1.09%) Law
3 1 (1.09%) Manufacturing
3 1 (1.09%) Marketing
Libraries, Frameworks & Software Standards
1 20 (21.74%) React
2 14 (15.22%) Kafka
3 7 (7.61%) Jest
3 7 (7.61%) Redux
3 7 (7.61%) Spring
3 7 (7.61%) Spring Boot
4 6 (6.52%) RESTful
5 5 (5.43%) Node.js
6 4 (4.35%) .NET
7 3 (3.26%) Django
7 3 (3.26%) GraphQL
8 2 (2.17%) AngularJS
8 2 (2.17%) Boost C++ Libraries
8 2 (2.17%) HTML5
8 2 (2.17%) Lambda Expressions
8 2 (2.17%) LESS
8 2 (2.17%) pytest
8 2 (2.17%) RabbitMQ
8 2 (2.17%) Sass
8 2 (2.17%) Vue
Miscellaneous
1 21 (22.83%) Cloud Native
2 15 (16.30%) Distributed Systems
3 7 (7.61%) Greenfield Project
3 7 (7.61%) IoT
3 7 (7.61%) Smart Energy
4 6 (6.52%) Algorithms
5 4 (4.35%) Data Structures
6 2 (2.17%) Derivative
6 2 (2.17%) Equities
6 2 (2.17%) Fixed Income
6 2 (2.17%) Product Ownership
6 2 (2.17%) Public Cloud
7 1 (1.09%) Management Information System
7 1 (1.09%) Renewable Energy
7 1 (1.09%) Self-Driving Car
Operating Systems
1 3 (3.26%) Linux
Processes & Methodologies
1 92 (100.00%) Software Engineering
2 23 (25.00%) Agile
2 23 (25.00%) Computer Science
3 22 (23.91%) Microservices
4 16 (17.39%) CI/CD
5 14 (15.22%) Full-Stack Development
6 13 (14.13%) Configuration Management
6 13 (14.13%) Mentoring
6 13 (14.13%) UML
6 13 (14.13%) Waterfall
7 11 (11.96%) Coaching
7 11 (11.96%) DevOps
7 11 (11.96%) Problem-Solving
8 8 (8.70%) AI
8 8 (8.70%) Event-Driven
9 7 (7.61%) Collaborative Culture
9 7 (7.61%) Containerisation
9 7 (7.61%) Continuous Improvement
9 7 (7.61%) Energy Management
9 7 (7.61%) Storage Management
Programming Languages
1 15 (16.30%) TypeScript
2 13 (14.13%) Ada
2 13 (14.13%) Ada 95
3 11 (11.96%) Python
4 10 (10.87%) Java
5 8 (8.70%) JavaScript
6 5 (5.43%) C#
7 4 (4.35%) C++
8 2 (2.17%) SQL
Qualifications
1 21 (22.83%) Degree
2 13 (14.13%) BPSS Clearance
2 13 (14.13%) Chartered Engineer
3 10 (10.87%) Security Cleared
4 6 (6.52%) Computer Science Degree
5 5 (5.43%) DV Cleared
5 5 (5.43%) SC Cleared
6 2 (2.17%) AWS Certification
6 2 (2.17%) AWS Certified Developer
6 2 (2.17%) Master's Degree
6 2 (2.17%) PhD
Quality Assurance & Compliance
1 13 (14.13%) ISO/IEC 12207
2 2 (2.17%) GDPR
2 2 (2.17%) ISO/IEC 27001
2 2 (2.17%) PCI DSS
2 2 (2.17%) QA
2 2 (2.17%) SOC 2
System Software
1 8 (8.70%) Docker
Systems Management
1 15 (16.30%) Kubernetes
2 5 (5.43%) Kibana
3 4 (4.35%) Terraform
4 1 (1.09%) Ansible
4 1 (1.09%) Istio
4 1 (1.09%) Progress Chef
4 1 (1.09%) Single Sign-On
Vendors
1 2 (2.17%) Google
1 2 (2.17%) OpenAI
2 1 (1.09%) ForgeRock
2 1 (1.09%) Okta
2 1 (1.09%) Ping Identity