Principal Developer Contract Job Trends

Principal Developer
UK

The median Principal Developer daily rate in the UK is £475, according to job vacancies posted in the 6 months leading up to 13 January 2026.

The table below compares current contractor rates and summary statistics with the previous two years.

6 months to
13 Jan 2026
Same period 2025 Same period 2024
Rank 565 516 571
Rank change year-on-year -49 +55 +159
Contract jobs requiring a Principal Developer 16 4 26
As % of all contract jobs in the UK 0.044% 0.013% 0.061%
As % of the Job Titles category 0.048% 0.014% 0.065%
Number of daily rates quoted 10 4 19
10th Percentile £338 £636 £620
25th Percentile £394 £661 £650
Median daily rate (50th Percentile) £475 £700 £800
Median % change year-on-year -32.14% -12.50% +6.67%
75th Percentile £588 £772 £817
90th Percentile £690 £856 £875
UK excluding London median daily rate £475 £638 £704
% change year-on-year -25.49% -9.41% -7.70%

All Contract IT Job Roles
UK

For comparison with the information above, the following table provides summary statistics for all contract 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 contract jobs in our overall sample.

Contract vacancies in the UK with a recognized job title 33,423 29,063 39,970
% of contract IT jobs with a recognized job title 91.34% 92.68% 93.20%
Number of daily rates quoted 21,125 17,795 26,676
10th Percentile £300 £289 £280
25th Percentile £405 £408 £413
Median daily rate (50th Percentile) £500 £525 £525
Median % change year-on-year -4.76% - -4.55%
75th Percentile £616 £638 £638
90th Percentile £719 £738 £738
UK excluding London median daily rate £475 £477 £500
% change year-on-year -0.42% -4.60% -
Number of hourly rates quoted 1,961 876 1,672
10th Percentile £14.38 £15.49 £14.16
25th Percentile £18.25 £21.03 £18.93
Median hourly rate £26.50 £32.50 £42.50
Median % change year-on-year -18.46% -23.53% +26.87%
75th Percentile £60.00 £61.69 £65.00
90th Percentile £70.00 £73.75 £76.25
UK excluding London median hourly rate £25.15 £30.62 £45.00
% change year-on-year -17.85% -31.97% +64.38%

Principal Developer
Job Vacancy Trend

Historical trend showing the proportion of contract IT job postings featuring 'Principal Developer' in the job title relative to all contract IT jobs advertised.

Principal Developer job vacancy trend in the UK

Principal Developer
Daily Rate Trend

Contractor daily rate distribution trend for Principal Developer job vacancies in the UK.

Contractor daily rate distribution trend for Principal Developer job vacancies in the UK

Principal Developer
Daily Rate Histogram

Daily rate distribution for jobs citing Principal Developer over the 6 months to 13 January 2026.

Daily rate histogram for Principal Developer in the UK

Principal Developer
Hourly Rate Trend

Contractor hourly rate distribution trend for Principal Developer job vacancies in the UK.

Contractor hourly rate distribution trend for Principal Developer job vacancies in the UK

Principal Developer
Top 9 Contract Job Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Principal Developer within the UK over the 6 months to 13 January 2026. 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
England -61 14 £475 -32.14% 10
London -29 8 £450 -35.71% 2
UK excluding London -43 6 £475 -25.49% 8
South East - 4 £550 - 3
Work from Home -7 1 £388 -44.64% 6
North of England -55 1 £388 -39.22% 4
West Midlands - 1 £388 - 1
Yorkshire - 1 £388 -
Midlands - 1 £388 - 1

Principal Developer Skill Set
Top 30 Co-Occurring Skills & Capabilities

For the 6 months to 13 January 2026, Principal Developer contract 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 contract job ads featuring Principal Developer in the job title.

1 11 (68.75%) Java
2 9 (56.25%) SQL
3 8 (50.00%) Spring
4 7 (43.75%) AWS
4 7 (43.75%) Relational Database
5 6 (37.50%) Azure
5 6 (37.50%) Computer Science
5 6 (37.50%) Git
6 5 (31.25%) Agile
6 5 (31.25%) Computer Science Degree
6 5 (31.25%) Degree
6 5 (31.25%) Microservices
6 5 (31.25%) Problem-Solving
6 5 (31.25%) Spring Boot
6 5 (31.25%) User Experience
6 5 (31.25%) UX Design
7 4 (25.00%) CI/CD
7 4 (25.00%) Continuous Delivery
7 4 (25.00%) Full-Stack Development
7 4 (25.00%) GCP
7 4 (25.00%) Linux
7 4 (25.00%) PostgreSQL
7 4 (25.00%) Python
7 4 (25.00%) REST
7 4 (25.00%) RESTful
8 3 (18.75%) Android
8 3 (18.75%) Android Development
8 3 (18.75%) Apple
8 3 (18.75%) Apple iOS
8 3 (18.75%) Architectural Patterns

Principal Developer 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 1 (6.25%) Apache
1 1 (6.25%) nginx
Applications
1 1 (6.25%) Spreadsheet
Business Applications
1 1 (6.25%) Magento
1 1 (6.25%) Oracle Applications
Cloud Services
1 7 (43.75%) AWS
2 6 (37.50%) Azure
3 4 (25.00%) GCP
4 3 (18.75%) SaaS
5 2 (12.50%) Serverless
6 1 (6.25%) Amazon EMR
6 1 (6.25%) Amazon S3
6 1 (6.25%) AWS Lambda
6 1 (6.25%) Azure Cosmos DB
6 1 (6.25%) Datadog
6 1 (6.25%) DigitalOcean
6 1 (6.25%) MinIO
6 1 (6.25%) n8n
Database & Business Intelligence
1 7 (43.75%) Relational Database
2 4 (25.00%) PostgreSQL
3 2 (12.50%) Elasticsearch
3 2 (12.50%) RDBMS
3 2 (12.50%) SQL Server
4 1 (6.25%) Amazon Aurora
4 1 (6.25%) Apache Iceberg
4 1 (6.25%) GIS
4 1 (6.25%) MySQL
4 1 (6.25%) NoSQL
4 1 (6.25%) Oracle Database
4 1 (6.25%) Oracle Database 11g
Development Applications
1 6 (37.50%) Git
2 2 (12.50%) Eclipse
2 2 (12.50%) JIRA
3 1 (6.25%) Jenkins
3 1 (6.25%) Snyk
General
1 5 (31.25%) Analytical Skills
1 5 (31.25%) Social Skills
2 2 (12.50%) Finance
3 1 (6.25%) Public Sector
Libraries, Frameworks & Software Standards
1 8 (50.00%) Spring
2 5 (31.25%) Spring Boot
3 4 (25.00%) REST
3 4 (25.00%) RESTful
4 3 (18.75%) Material Design
5 2 (12.50%) AngularJS
5 2 (12.50%) Bootstrap
5 2 (12.50%) CSS
5 2 (12.50%) Hibernate
5 2 (12.50%) HTML
5 2 (12.50%) JDBC
5 2 (12.50%) JPA
5 2 (12.50%) jQuery
5 2 (12.50%) Web Services
5 2 (12.50%) XHTML
6 1 (6.25%) .NET
6 1 (6.25%) EJB
6 1 (6.25%) Java SE
6 1 (6.25%) JSP
6 1 (6.25%) YAML
Miscellaneous
1 3 (18.75%) Mobile App
2 2 (12.50%) Life Science
3 1 (6.25%) AI Agents
3 1 (6.25%) Data Centre
3 1 (6.25%) Data Protection Act
3 1 (6.25%) Hackathon
3 1 (6.25%) Legacy Systems
3 1 (6.25%) Onboarding
3 1 (6.25%) Product Ownership
3 1 (6.25%) Replication
Operating Systems
1 4 (25.00%) Linux
2 3 (18.75%) Android
2 3 (18.75%) Apple iOS
3 2 (12.50%) Windows
4 1 (6.25%) Red Hat Enterprise Linux
4 1 (6.25%) Solaris
Processes & Methodologies
1 6 (37.50%) Computer Science
2 5 (31.25%) Agile
2 5 (31.25%) Microservices
2 5 (31.25%) Problem-Solving
2 5 (31.25%) User Experience
2 5 (31.25%) UX Design
3 4 (25.00%) CI/CD
3 4 (25.00%) Continuous Delivery
3 4 (25.00%) Full-Stack Development
4 3 (18.75%) Android Development
4 3 (18.75%) Architectural Patterns
4 3 (18.75%) Asynchronous Programming
4 3 (18.75%) Continuous Integration
4 3 (18.75%) Infrastructure as Code
4 3 (18.75%) Mobile Application Development
4 3 (18.75%) MVVM
4 3 (18.75%) Performance Tuning
4 3 (18.75%) Roadmaps
4 3 (18.75%) SDLC
4 3 (18.75%) Software Engineering
Programming Languages
1 11 (68.75%) Java
2 9 (56.25%) SQL
3 4 (25.00%) Python
4 3 (18.75%) Kotlin
4 3 (18.75%) Objective-C
4 3 (18.75%) Swift
5 2 (12.50%) C#
5 2 (12.50%) Groovy
5 2 (12.50%) JavaScript
5 2 (12.50%) TypeScript
6 1 (6.25%) Bash
6 1 (6.25%) C++
6 1 (6.25%) Perl
6 1 (6.25%) PHP
6 1 (6.25%) PL/SQL
Qualifications
1 5 (31.25%) Computer Science Degree
1 5 (31.25%) Degree
2 2 (12.50%) SC Cleared
2 2 (12.50%) Security Cleared
3 1 (6.25%) BPSS Clearance
3 1 (6.25%) DBS Check
3 1 (6.25%) MCP
Quality Assurance & Compliance
1 1 (6.25%) Data Quality
1 1 (6.25%) QA
System Software
1 2 (12.50%) Docker
Systems Management
1 3 (18.75%) Terraform
2 1 (6.25%) Data Guard
2 1 (6.25%) Kubernetes
Vendors
1 3 (18.75%) Apple
2 1 (6.25%) IBM
2 1 (6.25%) Microsoft
2 1 (6.25%) Oracle
2 1 (6.25%) Red Hat
2 1 (6.25%) VMware