Period
to 19 November 2017

The median contractor rate for a Principal Engineer was £475 per day in advertised job vacancies in the City of London during the 6 months to 19 November 2017.

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 Engineer
Central London > City of London
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 239 252 269
Rank change year-on-year +13 +17 -
Contract jobs requiring a Principal Engineer 1 1 2
As % of all contract IT jobs advertised in the City of London 0.014% 0.015% 0.022%
As % of the Job Titles category 0.015% 0.016% 0.023%
Number of daily rates quoted 1 1 2
City of London median daily rate £475 £650 £538
Median daily rate % change year-on-year -26.92% +20.93% -
10th Percentile £463 £625 £491
90th Percentile £488 £675 £574
Central London median daily rate £475 £650 £538
% change year-on-year -26.92% +20.93% -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in the City of London. 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
City of London
Contract vacancies in the City of London with a recognized job title 6642 6353 8750
% of contract IT jobs with a recognized job title 94.53% 95.51% 95.26%
Number of daily rates quoted 5247 5051 6871
City of London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £313 £273
90th Percentile £675 £663 £650
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 94 77 125
City of London median hourly rate £17.00 £17.50 £18.00
Median hourly rate % change year-on-year -2.86% -2.78% +5.88%
10th Percentile £11.25 £11.50 £10.20
90th Percentile £29.29 £48.40 £38.05
Central London median hourly rate £18.10 £17.21 £18.00
% change year-on-year +5.19% -4.40% +9.09%

Principal Engineer
Job Vacancy Trend in the City of London

Job postings that featured Principal Engineer in the job title as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Principal Engineer in the City of London

Principal Engineer
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Principal Engineer in the City of London.

Contractor daily rate trend for Principal Engineer in the City of London

Principal Engineer Skill Set
Top 30 Co-occurring IT Skills in the City of London

For the 6 months to 19 November 2017, Principal Engineer contract jobs required the following IT skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region featuring Principal Engineer in the job title.

1 1 (100.00%) C#
1 1 (100.00%) JavaScript
1 1 (100.00%) SQL
1 1 (100.00%) .NET
1 1 (100.00%) ASP.NET
1 1 (100.00%) CSS
1 1 (100.00%) XML
1 1 (100.00%) MVC
1 1 (100.00%) Finance
1 1 (100.00%) Agile Software Development
1 1 (100.00%) TDD
1 1 (100.00%) .NET Framework
1 1 (100.00%) Git (software)
1 1 (100.00%) Team Foundation Server
1 1 (100.00%) Microsoft Azure
1 1 (100.00%) ASP.NET MVC
1 1 (100.00%) MongoDB
1 1 (100.00%) NoSQL
1 1 (100.00%) Entity Framework
1 1 (100.00%) CSS3
1 1 (100.00%) Machine Learning
1 1 (100.00%) AngularJS
1 1 (100.00%) Xamarin
1 1 (100.00%) ASP.NET Web API
1 1 (100.00%) Docker
1 1 (100.00%) DevOps
1 1 (100.00%) Microservices
1 1 (100.00%) React
1 1 (100.00%) Mobile Development
1 1 (100.00%) Azure Machine Learning

Principal Engineer Skill Set
Co-occurring IT Skills in the City of London 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:

Cloud Services
1 1 (100.00%) Azure Machine Learning
1 1 (100.00%) Microsoft Azure
1 1 (100.00%) Serverless
Database & Business Intelligence
1 1 (100.00%) MongoDB
1 1 (100.00%) NoSQL
Development Applications
1 1 (100.00%) Git (software)
1 1 (100.00%) Team Foundation Server
General
1 1 (100.00%) Finance
Libraries, Frameworks & Software Standards
1 1 (100.00%) .NET
1 1 (100.00%) .NET Core
1 1 (100.00%) .NET Framework
1 1 (100.00%) Angular 2
1 1 (100.00%) AngularJS
1 1 (100.00%) ASP.NET
1 1 (100.00%) ASP.NET MVC
1 1 (100.00%) ASP.NET Web API
1 1 (100.00%) CSS
1 1 (100.00%) CSS3
1 1 (100.00%) Entity Framework
1 1 (100.00%) React
1 1 (100.00%) XML
Miscellaneous
1 1 (100.00%) Greenfield Project
Processes & Methodologies
1 1 (100.00%) Agile Software Development
1 1 (100.00%) DevOps
1 1 (100.00%) Machine Learning
1 1 (100.00%) Microservices
1 1 (100.00%) Mobile Development
1 1 (100.00%) MVC
1 1 (100.00%) SOLID
1 1 (100.00%) TDD
Programming Languages
1 1 (100.00%) C#
1 1 (100.00%) JavaScript
1 1 (100.00%) SQL
System Software
1 1 (100.00%) Docker
Vendors
1 1 (100.00%) Xamarin