Period
to 23 October 2020

The median contractor rate for a Principal Developer was £563 per day in advertised job vacancies during the 6 months to 23 October 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
23 Oct 2020
Same period 2019 Same period 2018
Rank 523 794 884
Rank change year-on-year +271 +90 -16
Contract jobs requiring a Principal Developer 11 15 21
As % of all contract jobs advertised in the UK 0.034% 0.018% 0.020%
As % of the Job Titles category 0.037% 0.019% 0.021%
Number of daily rates quoted 5 13 19
Median daily rate £563 £563 £450
Median daily rate % change year-on-year - +25.00% -0.55%
10th Percentile £550 £436 £417
90th Percentile £618 £665 £645
UK excluding London median daily rate £650 £600 £450
% change year-on-year +8.33% +33.33% +2.27%
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 29,537 79,745 98,018
% of contract IT jobs with a recognized job title 92.31% 94.12% 94.74%
Number of daily rates quoted 18,614 52,340 64,459
Median daily rate £470 £463 £450
Median daily rate % change year-on-year +1.56% +2.78% +2.27%
10th Percentile £256 £261 £268
90th Percentile £662 £644 £638
UK excluding London median daily rate £425 £425 £418
% change year-on-year - +1.80% +4.38%
Number of hourly rates quoted 1,181 2,865 3,140
Median hourly rate £28.00 £20.00 £18.00
Median hourly rate % change year-on-year +40.00% +11.11% -3.74%
10th Percentile £11.17 £11.17 £11.00
90th Percentile £53.75 £52.50 £48.75
Median hourly rate £22.00 £18.38 £17.50
% change year-on-year +19.73% +5.00% -2.78%

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
Top 5 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 23 October 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 +289 11 £563 - 19
London +198 8 £556 +5.95% 10
UK excluding London +250 3 £650 +8.33% 10
South East - 3 £650 - 5
Work from Home - 3 £556 - 3

Principal Developer Skill Set
Top 30 Co-occurring IT Skills

For the 6 months to 23 October 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 8 (72.73%) SQL
2 7 (63.64%) Agile Software Development
3 6 (54.55%) Azure
4 5 (45.45%) Security Cleared
4 5 (45.45%) AngularJS
4 5 (45.45%) TypeScript
5 4 (36.36%) logstash
5 4 (36.36%) Elasticsearch
5 4 (36.36%) MongoDB
5 4 (36.36%) Kibana
5 4 (36.36%) Mentoring
5 4 (36.36%) Kubernetes
5 4 (36.36%) React
5 4 (36.36%) Elastic Stack
5 4 (36.36%) Data Analysis
5 4 (36.36%) SC Cleared
5 4 (36.36%) .NET
5 4 (36.36%) C#
5 4 (36.36%) Java
6 3 (27.27%) JavaScript
6 3 (27.27%) SQL Server
6 3 (27.27%) Web Services
6 3 (27.27%) Python
6 3 (27.27%) Business Intelligence
6 3 (27.27%) Microsoft
6 3 (27.27%) Spring
6 3 (27.27%) AWS
6 3 (27.27%) Power BI
6 3 (27.27%) Greenfield Project
6 3 (27.27%) Data Science

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 4 (36.36%) Elasticsearch
2 1 (9.09%) IIS
2 1 (9.09%) SharePoint
Business Applications
1 1 (9.09%) Dynamics CRM
Cloud Services
1 6 (54.55%) Azure
2 3 (27.27%) AWS
2 3 (27.27%) Power Platform
3 2 (18.18%) Power Automate
3 2 (18.18%) PowerApps
4 1 (9.09%) Oracle CX
Database & Business Intelligence
1 4 (36.36%) MongoDB
2 3 (27.27%) Power BI
2 3 (27.27%) SQL Server
2 3 (27.27%) Tableau
3 2 (18.18%) Azure SQL Data Warehouse
3 2 (18.18%) Azure SQL Database
3 2 (18.18%) Data Lake
3 2 (18.18%) Data Warehouse
3 2 (18.18%) PowerPivot
4 1 (9.09%) MySQL
4 1 (9.09%) SQL Server 2016
4 1 (9.09%) SQL Server 2017
4 1 (9.09%) SQL Server Integration Services
Development Applications
1 2 (18.18%) Visual Studio
2 1 (9.09%) Git (software)
2 1 (9.09%) Octopus Deploy
2 1 (9.09%) Oracle APEX
2 1 (9.09%) Oracle Forms
2 1 (9.09%) Selenium
2 1 (9.09%) SpecFlow
General
1 1 (9.09%) Public Sector
Libraries, Frameworks & Software Standards
1 5 (45.45%) AngularJS
2 4 (36.36%) .NET
2 4 (36.36%) Elastic Stack
2 4 (36.36%) React
3 3 (27.27%) Node.js
3 3 (27.27%) Pandas
3 3 (27.27%) scikit-learn
3 3 (27.27%) Spring
3 3 (27.27%) Web Services
4 2 (18.18%) .NET Core
4 2 (18.18%) ASP.NET
4 2 (18.18%) CSS
5 1 (9.09%) Ajax
5 1 (9.09%) ASP.NET Core
5 1 (9.09%) HTML
5 1 (9.09%) HTML5
5 1 (9.09%) JSON
5 1 (9.09%) REST
5 1 (9.09%) RESTful
5 1 (9.09%) WCF
Miscellaneous
1 3 (27.27%) Greenfield Project
1 3 (27.27%) User Experience
2 1 (9.09%) Analytical Skills
2 1 (9.09%) Data Structures
2 1 (9.09%) Driving Licence
2 1 (9.09%) Management Information System
2 1 (9.09%) N-Tier
Processes & Methodologies
1 7 (63.64%) Agile Software Development
2 4 (36.36%) Data Analysis
2 4 (36.36%) Mentoring
3 3 (27.27%) Analytics
3 3 (27.27%) Business Intelligence
3 3 (27.27%) Data Science
3 3 (27.27%) DevOps
4 2 (18.18%) Dashboard Development
4 2 (18.18%) Data Modelling
4 2 (18.18%) ETL
4 2 (18.18%) Prototyping
4 2 (18.18%) Software Engineering
4 2 (18.18%) TDD
4 2 (18.18%) Use Case
4 2 (18.18%) User Stories
4 2 (18.18%) Visualisation
5 1 (9.09%) Collaborative Working
5 1 (9.09%) Creative Thinking
5 1 (9.09%) Innovative Thinking
5 1 (9.09%) Workload Management
Programming Languages
1 8 (72.73%) SQL
2 5 (45.45%) TypeScript
3 4 (36.36%) C#
3 4 (36.36%) Java
4 3 (27.27%) JavaScript
4 3 (27.27%) Python
5 2 (18.18%) Data Analysis Expressions (DAX)
5 2 (18.18%) T-SQL
6 1 (9.09%) PowerShell
Qualifications
1 5 (45.45%) Security Cleared
2 4 (36.36%) SC Cleared
3 2 (18.18%) DV Cleared
Quality Assurance & Compliance
1 2 (18.18%) Data Quality
2 1 (9.09%) QA
System Software
1 1 (9.09%) Docker
Systems Management
1 4 (36.36%) Kibana
1 4 (36.36%) Kubernetes
1 4 (36.36%) logstash
2 1 (9.09%) Ansible
Vendors
1 3 (27.27%) Microsoft
2 2 (18.18%) Oracle