Period
to 20 September 2021

The median contractor rate for a Principal Developer was £613 per day in advertised job vacancies during the 6 months to 20 September 2021.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Principal Developer
UK
6 months to
20 Sep 2021
Same period 2020 Same period 2019
Rank 769 494 823
Rank change year-on-year -275 +329 +80
Contract jobs requiring a Principal Developer 19 13 13
As % of all contract jobs advertised in the UK 0.024% 0.045% 0.015%
As % of the Job Titles category 0.026% 0.048% 0.016%
Number of daily rates quoted 17 4 8
10th Percentile £410 £552 £421
25th Percentile £500 £555 £491
Median daily rate (50th Percentile) £613 £581 £588
Median % change year-on-year +5.38% -1.06% +30.56%
75th Percentile £669 £613 £638
90th Percentile £783 £635 £686
UK excluding London median daily rate £473 £650 £600
% change year-on-year -27.31% +8.33% +33.33%

The following table is for comparison with the above and includes 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.

All Contract IT Job Vacancies
UK
Contract vacancies in the UK with a recognized job title 73,658 26,968 83,636
% of contract IT jobs with a recognized job title 93.14% 92.48% 94.23%
Number of daily rates quoted 50,910 18,017 55,913
10th Percentile £300 £263 £263
25th Percentile £405 £363 £363
Median daily rate (50th Percentile) £500 £475 £463
Median % change year-on-year +5.26% +2.70% +2.78%
75th Percentile £600 £575 £572
90th Percentile £688 £668 £650
UK excluding London median daily rate £450 £431 £425
% change year-on-year +4.41% +1.41% +2.41%
Number of hourly rates quoted 2,043 897 2,767
10th Percentile £11.50 £11.17 £11.17
25th Percentile £13.50 £14.25 £13.50
Median hourly rate £20.00 £21.88 £19.00
Median % change year-on-year -8.57% +15.13% +8.57%
75th Percentile £45.00 £43.75 £43.37
90th Percentile £60.99 £53.85 £52.27
UK excluding London median hourly rate £17.81 £20.00 £17.50
% change year-on-year -10.95% +14.29% -

Principal Developer
Job Vacancy Trend

Job postings that featured Principal Developer in the job title as a proportion of all IT jobs advertised.

Job vacancy trend for Principal Developer in the UK

Principal Developer
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing Principal Developer.

Daily rate trend for Principal Developer in the UK

Principal Developer
Daily Rate Histogram

Daily rate distribution for jobs citing Principal Developer over the 6 months to 20 September 2021.

Daily rate histogram for Principal Developer in the UK

Principal Developer
Top 9 Contract 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 20 September 2021. 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
Job
Vacancies
England -257 15 £613 +5.38% 41
London -191 9 £663 +17.78% 18
UK excluding London -151 6 £473 -27.31% 24
Work from Home -248 5 £620 +11.46% 14
South East -96 3 £620 -4.62% 4
East Midlands - 2 £420 -
Midlands - 2 £420 - 1
North West - 1 £525 - 9
North of England - 1 £525 - 15

Principal Developer Skill Set
Top 30 Co-occurring IT Skills

For the 6 months to 20 September 2021, Principal Developer contract jobs required the following IT skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads featuring Principal Developer in the job title.

1 9 (47.37%) HTML
1 9 (47.37%) CSS
2 8 (42.11%) Azure
3 7 (36.84%) MVC
3 7 (36.84%) DevOps
4 6 (31.58%) AngularJS
4 6 (31.58%) HTML5
4 6 (31.58%) C#
4 6 (31.58%) .NET
4 6 (31.58%) .NET Framework
5 5 (26.32%) Agile Software Development
5 5 (26.32%) AWS
5 5 (26.32%) JavaScript
5 5 (26.32%) SQL Server
5 5 (26.32%) ASP.NET Web API
5 5 (26.32%) Docker
5 5 (26.32%) React
5 5 (26.32%) .NET Core
6 4 (21.05%) TypeScript
6 4 (21.05%) Microservices
6 4 (21.05%) REST
6 4 (21.05%) Responsive Web Design
6 4 (21.05%) Python
6 4 (21.05%) Microsoft
6 4 (21.05%) Finance
6 4 (21.05%) PostgreSQL
6 4 (21.05%) Software Engineering
7 3 (15.79%) Degree
7 3 (15.79%) Computer Science
7 3 (15.79%) Git (software)

Principal Developer Skill Set
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 2 (10.53%) Elasticsearch
2 1 (5.26%) Apache Solr
Cloud Services
1 8 (42.11%) Azure
2 5 (26.32%) AWS
3 2 (10.53%) Cloud Computing
4 1 (5.26%) AWS Lambda
4 1 (5.26%) GCP
4 1 (5.26%) GitHub
4 1 (5.26%) npm
4 1 (5.26%) SaaS
4 1 (5.26%) Serverless
Database & Business Intelligence
1 5 (26.32%) SQL Server
2 4 (21.05%) PostgreSQL
3 3 (15.79%) MongoDB
4 2 (10.53%) Amazon DynamoDB
4 2 (10.53%) MySQL
4 2 (10.53%) Relational Database
5 1 (5.26%) Big Data
5 1 (5.26%) Redis
Development Applications
1 3 (15.79%) Git (software)
2 2 (10.53%) Jtest
2 2 (10.53%) JUnit
3 1 (5.26%) Jasmine
3 1 (5.26%) ProC
3 1 (5.26%) Visual Studio
General
1 4 (21.05%) Finance
2 2 (10.53%) Back Office
2 2 (10.53%) Banking
2 2 (10.53%) Front Office
3 1 (5.26%) Analytical Skills
3 1 (5.26%) Publishing
Libraries, Frameworks & Software Standards
1 9 (47.37%) CSS
1 9 (47.37%) HTML
2 6 (31.58%) .NET
2 6 (31.58%) .NET Framework
2 6 (31.58%) AngularJS
2 6 (31.58%) HTML5
3 5 (26.32%) .NET Core
3 5 (26.32%) ASP.NET Web API
3 5 (26.32%) React
4 4 (21.05%) REST
5 3 (15.79%) CSS3
5 3 (15.79%) RESTful
5 3 (15.79%) Sass
5 3 (15.79%) Vue.js
6 2 (10.53%) Django
6 2 (10.53%) SOAP
6 2 (10.53%) Spring
6 2 (10.53%) Spring Boot
6 2 (10.53%) Spring MVC
6 2 (10.53%) Spring Security
Miscellaneous
1 3 (15.79%) NHS
2 2 (10.53%) Data Structures
2 2 (10.53%) Derivative
2 2 (10.53%) Greenfield Project
3 1 (5.26%) Analytical Mindset
3 1 (5.26%) User Experience
Operating Systems
1 1 (5.26%) Windows
Processes & Methodologies
1 7 (36.84%) DevOps
1 7 (36.84%) MVC
2 5 (26.32%) Agile Software Development
3 4 (21.05%) Microservices
3 4 (21.05%) Responsive Web Design
3 4 (21.05%) Software Engineering
4 3 (15.79%) Computer Science
4 3 (15.79%) Kanban
4 3 (15.79%) Mentoring
4 3 (15.79%) Scrum
4 3 (15.79%) Web Design
4 3 (15.79%) Web Development
5 2 (10.53%) Analytics
5 2 (10.53%) Coaching
5 2 (10.53%) Cybersecurity
5 2 (10.53%) Dependency Injection
5 2 (10.53%) Integration Testing
5 2 (10.53%) Risk Management
5 2 (10.53%) SOA
5 2 (10.53%) TDD
Programming Languages
1 6 (31.58%) C#
2 5 (26.32%) JavaScript
3 4 (21.05%) Python
3 4 (21.05%) TypeScript
4 3 (15.79%) Java
5 2 (10.53%) Java 11
5 2 (10.53%) Java 8
6 1 (5.26%) C
6 1 (5.26%) C++
6 1 (5.26%) ES6
6 1 (5.26%) Go
6 1 (5.26%) Kotlin
6 1 (5.26%) PHP
Qualifications
1 3 (15.79%) Computer Science Degree
1 3 (15.79%) Degree
2 1 (5.26%) Security Cleared
Quality Assurance & Compliance
1 2 (10.53%) QA
System Software
1 5 (26.32%) Docker
Systems Management
1 2 (10.53%) Kubernetes
1 2 (10.53%) Terraform
Vendors
1 4 (21.05%) Microsoft
2 1 (5.26%) Oracle