The median contractor rate for a Principal Engineer was £588 per day in advertised job vacancies in London during the 3 months to 25 March 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.

3 months to
25 Mar 2017
Same period 2016 Same period 2015
Principal Engineer
England / London
Rank 402 437 416
Rank change year-on-year +35 -21  
Contract jobs requiring a Principal Engineer 4 3 4
As % of all contract IT jobs advertised in London 0.021% 0.014% 0.019%
As % of the Job Titles category 0.022% 0.014% 0.020%
Number of daily rates quoted 4 2 2
Median daily rate £588 £388 £525
Median daily rate % change year-on-year +51.61% -26.19%  
90% offered a daily rate of more than £449 £378 £485
10% offered a daily rate of more than £600 £398 £565
UK excluding London median daily rate £463 £413 £390
% change year-on-year +12.12% +5.76%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £31.50 -
UK excluding London median hourly rate £47.50 £50.68 £40.00
% change year-on-year -6.27% +26.70%  

The next table is for comparison with the above and includes summary statistics for all job roles in contract job vacancies advertised in London. Most job vacancies include a discernible job title. As such, the figures in the first row provide an indication of the number of contract jobs in our overall sample.

Contract IT Job Roles
London
Contract job vacancies with a job title containing a recognized job role 18466 21022 19969
As % of all contract IT job vacancies advertised in London 94.85% 95.00% 94.87%
Number of daily rates quoted 13132 15064 13780
Median daily rate £475 £450 £450
Median daily rate % change year-on-year +5.55% -  
90% offered a daily rate of more than £301 £300 £275
10% offered a daily rate of more than £650 £625 £600
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 242 284 366
Median hourly rate £23.00 £17.00 £19.14
Median hourly rate % change year-on-year +35.29% -11.15%  
90% offered a hourly rate of more than £13.70 £11.50 £12.75
10% offered a hourly rate of more than £55.00 £43.55 £55.00
UK excluding London median hourly rate £17.50 £20.00 £17.22
% change year-on-year -12.50% +16.14%  

Principal Engineer
Job Vacancy Trend in London

The job posting trend of jobs advertised in London that featured Principal Engineer in the job title.

Job vacancy trend for Principal Engineer in London

Principal Engineer
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Principal Engineer in London

Principal Engineer
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Principal Engineer in London over the 3 months to 25 March 2017.

Contractor daily rate histogram for Principal Engineer in London

Principal Engineer
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing Principal Engineer in London.

Contractor hourly rate trend for Principal Engineer in London

Principal Engineer
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Principal Engineer within the London region over the 3 months to 25 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +5 2 £600 +60.00%
Principal Engineer
England

Principal Engineer Skill Set
Top 28 Related IT Skills in London

For the 6 months to 25 March 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 London region featuring Principal Engineer in the job title.

1 3 (75.00%) Java
1 3 (75.00%) Web Services
1 3 (75.00%) HTTP
1 3 (75.00%) Agile Software Development
1 3 (75.00%) TDD
1 3 (75.00%) Spring
1 3 (75.00%) Scala
1 3 (75.00%) Amazon AWS
1 3 (75.00%) Guava
1 3 (75.00%) Hazelcast
1 3 (75.00%) Opscode Chef
1 3 (75.00%) Ansible
1 3 (75.00%) Docker
1 3 (75.00%) DevOps
1 3 (75.00%) API Design
1 3 (75.00%) Dropwizard
1 3 (75.00%) Continuous Deployment
1 3 (75.00%) Puppet
2 2 (50.00%) BDD
3 1 (25.00%) VLAN
3 1 (25.00%) Network Security
3 1 (25.00%) TCP/IP
3 1 (25.00%) Firewall
3 1 (25.00%) Migration
3 1 (25.00%) ATM
3 1 (25.00%) WAN
3 1 (25.00%) F5
3 1 (25.00%) Data Centre

Principal Engineer Skill Set
Top Related IT Skills in 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 3 (75.00%) Amazon AWS
Communications & Networking
1 3 (75.00%) HTTP
2 1 (25.00%) ATM
2 1 (25.00%) Firewall
2 1 (25.00%) Network Security
2 1 (25.00%) TCP/IP
2 1 (25.00%) VLAN
2 1 (25.00%) WAN
Database & Business Intelligence
1 3 (75.00%) Hazelcast
Libraries, Frameworks & Software Standards
1 3 (75.00%) Dropwizard
1 3 (75.00%) Guava
1 3 (75.00%) Spring
1 3 (75.00%) Web Services
Miscellaneous
1 1 (25.00%) Data Centre
Processes & Methodologies
1 3 (75.00%) Agile Software Development
1 3 (75.00%) API Design
1 3 (75.00%) Continuous Deployment
1 3 (75.00%) DevOps
1 3 (75.00%) TDD
2 2 (50.00%) BDD
3 1 (25.00%) Migration
Programming Languages
1 3 (75.00%) Java
1 3 (75.00%) Scala
System Software
1 3 (75.00%) Docker
Systems Management
1 3 (75.00%) Ansible
1 3 (75.00%) Opscode Chef
1 3 (75.00%) Puppet
Vendors
1 1 (25.00%) F5