Period
to 2 April 2020

The median contractor rate for a Principal Developer was £525 per day in advertised job vacancies during the 6 months to 2 April 2020.

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
2 Apr 2020
Same period 2019 Same period 2018
Rank 679 859 892
Rank change year-on-year +180 +33 -53
Contract jobs requiring a Principal Developer 17 23 11
As % of all contract jobs advertised in the UK 0.027% 0.024% 0.011%
As % of the Job Titles category 0.029% 0.025% 0.011%
Number of daily rates quoted 15 9 6
Median daily rate £525 £475 £550
Median daily rate % change year-on-year +10.53% -13.64% -8.33%
10th Percentile £440 £425 £494
90th Percentile £588 £565 £686
UK excluding London median daily rate £625 - £513
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

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 58,014 91,276 96,527
% of contract IT jobs with a recognized job title 93.80% 94.68% 94.96%
Number of daily rates quoted 36,877 60,451 63,602
Median daily rate £460 £463 £450
Median daily rate % change year-on-year -0.54% +2.78% +5.88%
10th Percentile £228 £273 £263
90th Percentile £650 £650 £631
UK excluding London median daily rate £425 £425 £405
% change year-on-year - +4.94% +1.25%
Number of hourly rates quoted 2,477 2,821 2,915
Median hourly rate £20.00 £18.70 £18.60
Median hourly rate % change year-on-year +6.95% +0.54% +0.54%
10th Percentile £11.85 £11.04 £11.00
90th Percentile £52.25 £50.00 £48.00
Median hourly rate £18.90 £17.50 £17.50
% change year-on-year +8.00% - -

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 2 April 2020.

Daily rate histogram for Principal Developer in the UK

Principal Developer
Top 6 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 2 April 2020. 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 +177 17 £525 +10.53% 18
London +148 12 £488 +2.63% 11
UK excluding London +115 4 £625 - 7
East of England +25 2 - - 2
South East +82 1 - - 3
South West - 1 £625 -

Principal Developer Skill Set
Top 30 Co-occurring IT Skills

For the 6 months to 2 April 2020, 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 12 (70.59%) PHP
2 10 (58.82%) LAMP
3 8 (47.06%) Agile Software Development
4 7 (41.18%) E-Commerce
5 5 (29.41%) B2C
5 5 (29.41%) HTML
5 5 (29.41%) MySQL
5 5 (29.41%) Apache
5 5 (29.41%) jQuery
5 5 (29.41%) HTML5
5 5 (29.41%) Sass
5 5 (29.41%) New Relic
5 5 (29.41%) Docker
5 5 (29.41%) Digital Transformation Programme
6 3 (17.65%) Relational Database
6 3 (17.65%) AngularJS
6 3 (17.65%) SQL
7 2 (11.76%) .NET
7 2 (11.76%) Java
7 2 (11.76%) JavaScript
7 2 (11.76%) Python
7 2 (11.76%) TDD
7 2 (11.76%) Retail
7 2 (11.76%) Scrum
7 2 (11.76%) REST
7 2 (11.76%) Facebook
7 2 (11.76%) Analytical Skills
7 2 (11.76%) RESTful
7 2 (11.76%) Software Engineering
7 2 (11.76%) Statistics

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 5 (29.41%) Apache
2 1 (5.88%) ArcGIS
2 1 (5.88%) NServiceBus
Cloud Services
1 1 (5.88%) Azure
1 1 (5.88%) IaaS
1 1 (5.88%) PaaS
1 1 (5.88%) SaaS
Database & Business Intelligence
1 5 (29.41%) MySQL
2 3 (17.65%) Relational Database
3 1 (5.88%) Cosmos DB
3 1 (5.88%) NoSQL
3 1 (5.88%) SQL Server
General
1 2 (11.76%) Retail
2 1 (5.88%) Electronics
2 1 (5.88%) Finance
2 1 (5.88%) Manufacturing
2 1 (5.88%) Marketing
2 1 (5.88%) Public Sector
2 1 (5.88%) Telecoms
Libraries, Frameworks & Software Standards
1 10 (58.82%) LAMP
2 5 (29.41%) HTML
2 5 (29.41%) HTML5
2 5 (29.41%) jQuery
2 5 (29.41%) Sass
3 3 (17.65%) AngularJS
4 2 (11.76%) .NET
4 2 (11.76%) REST
4 2 (11.76%) RESTful
4 2 (11.76%) Symfony
5 1 (5.88%) .NET Core
5 1 (5.88%) Node.js
5 1 (5.88%) RabbitMQ
5 1 (5.88%) RAML
5 1 (5.88%) React
5 1 (5.88%) Spring
Miscellaneous
1 2 (11.76%) Analytical Skills
1 2 (11.76%) Blog
2 1 (5.88%) Hybrid Cloud
Operating Systems
1 1 (5.88%) VMS
Processes & Methodologies
1 8 (47.06%) Agile Software Development
2 7 (41.18%) E-Commerce
3 5 (29.41%) B2C
3 5 (29.41%) Digital Transformation Programme
4 2 (11.76%) Biology
4 2 (11.76%) Computational Biology
4 2 (11.76%) Scrum
4 2 (11.76%) Software Engineering
4 2 (11.76%) Statistics
4 2 (11.76%) TDD
4 2 (11.76%) Web Development
5 1 (5.88%) BDD
5 1 (5.88%) Business Intelligence
5 1 (5.88%) Continuous Integration
5 1 (5.88%) CQRS
5 1 (5.88%) Data Modelling
5 1 (5.88%) Digital Marketing
5 1 (5.88%) Domain-Driven Design
5 1 (5.88%) MVC
5 1 (5.88%) Programme Management
Programming Languages
1 12 (70.59%) PHP
2 3 (17.65%) SQL
3 2 (11.76%) Java
3 2 (11.76%) JavaScript
3 2 (11.76%) Python
4 1 (5.88%) C#
System Software
1 5 (29.41%) Docker
Vendors
1 5 (29.41%) New Relic
2 2 (11.76%) Facebook
2 2 (11.76%) YouTube
3 1 (5.88%) ESRI
3 1 (5.88%) MuleSoft
3 1 (5.88%) SAP