Period
to 19 November 2017

The median contractor rate for a Principal Engineer was £500 per day in advertised job vacancies in 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
England > London
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 617 597 596
Rank change year-on-year -20 -1 +7
Contract jobs requiring a Principal Engineer 17 10 6
As % of all contract IT jobs advertised in London 0.037% 0.022% 0.013%
As % of the Job Titles category 0.039% 0.023% 0.013%
Number of daily rates quoted 12 9 4
London median daily rate £500 £625 £538
Median daily rate % change year-on-year -20.00% +16.28% -7.53%
10th Percentile £388 £482 £470
90th Percentile £575 £665 £575
England median daily rate £488 £625 £450
% change year-on-year -22.00% +38.89% -
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate £32.50 £43.50 £50.68
% change year-on-year -25.29% -14.17% +11.56%

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in 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
London
Contract vacancies in London with a recognized job title 43845 42658 44659
% of contract IT jobs with a recognized job title 94.85% 95.00% 94.97%
Number of daily rates quoted 31743 30364 31460
London median daily rate £493 £460 £450
Median daily rate % change year-on-year +7.07% +2.22% +5.88%
10th Percentile £300 £288 £268
90th Percentile £663 £638 £638
England median daily rate £450 £425 £413
% change year-on-year +5.88% +3.03% +3.13%
Number of hourly rates quoted 544 553 695
London median hourly rate £20.00 £19.62 £19.00
Median hourly rate % change year-on-year +1.96% +3.24% +8.57%
10th Percentile £12.15 £11.50 £11.25
90th Percentile £47.83 £50.00 £47.83
England median hourly rate £18.63 £18.50 £18.00
% change year-on-year +0.68% +2.78% +9.09%

Principal Engineer
Job Vacancy Trend in London

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

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 6 months to 19 November 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 contractor hourly rates quoted in IT 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 6 months to 19 November 2017. 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
West London -9 2 £411 +9.60% 1
Central London -6 1 £475 -26.92% 2
Principal Engineer
England

Principal Engineer Skill Set
Top 30 Co-occurring IT Skills in 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 London region featuring Principal Engineer in the job title.

1 9 (52.94%) Amazon AWS
1 9 (52.94%) DevOps
2 7 (41.18%) Jenkins
2 7 (41.18%) Java
3 6 (35.29%) MySQL
3 6 (35.29%) Linux
3 6 (35.29%) Python
3 6 (35.29%) Configuration Management
3 6 (35.29%) Agile Software Development
3 6 (35.29%) Ansible
3 6 (35.29%) Elastic Stack
4 5 (29.41%) Terraform
4 5 (29.41%) Apache Spark
4 5 (29.41%) Kafka
4 5 (29.41%) NoSQL
4 5 (29.41%) Big Data
4 5 (29.41%) Hadoop
4 5 (29.41%) Firewall
4 5 (29.41%) Scrum
4 5 (29.41%) Microsoft
4 5 (29.41%) Windows
4 5 (29.41%) SQL
5 4 (23.53%) Oracle
5 4 (23.53%) TCP/IP
5 4 (23.53%) Spring
5 4 (23.53%) Scala
5 4 (23.53%) Microsoft Azure
5 4 (23.53%) Docker
5 4 (23.53%) Opscode Chef
6 3 (17.65%) Amazon RDS

Principal Engineer Skill Set
Co-occurring 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:

Application Platforms
1 5 (29.41%) Apache Spark
2 3 (17.65%) Tomcat
Cloud Services
1 9 (52.94%) Amazon AWS
2 4 (23.53%) Microsoft Azure
3 3 (17.65%) AWS CloudFormation
3 3 (17.65%) GitHub
3 3 (17.65%) SaaS
4 2 (11.76%) Cloud Computing
4 2 (11.76%) Datadog
5 1 (5.88%) Azure Machine Learning
5 1 (5.88%) Serverless
Communications & Networking
1 5 (29.41%) Firewall
2 4 (23.53%) TCP/IP
3 2 (11.76%) DNS
3 2 (11.76%) ICMP
3 2 (11.76%) VPN
4 1 (5.88%) Cisco ASA
4 1 (5.88%) Network Security
Database & Business Intelligence
1 6 (35.29%) MySQL
2 5 (29.41%) Big Data
2 5 (29.41%) Hadoop
2 5 (29.41%) NoSQL
3 3 (17.65%) Amazon RDS
3 3 (17.65%) Redis
4 2 (11.76%) Apache Cassandra
4 2 (11.76%) Apache Hive
4 2 (11.76%) Impala
4 2 (11.76%) MongoDB
4 2 (11.76%) SQL Server
5 1 (5.88%) Couchbase
5 1 (5.88%) CouchDB
Development Applications
1 7 (41.18%) Jenkins
2 3 (17.65%) GitLab
2 3 (17.65%) VSS/SourceSafe
3 2 (11.76%) Artifactory
3 2 (11.76%) Git (software)
3 2 (11.76%) InstallShield
3 2 (11.76%) Rational DOORS
3 2 (11.76%) RequisitePro
3 2 (11.76%) Sonatype Nexus
4 1 (5.88%) Cucumber
4 1 (5.88%) JIRA
4 1 (5.88%) JIRA Agile
4 1 (5.88%) JUnit
4 1 (5.88%) Karma Test Runner
4 1 (5.88%) Maven
4 1 (5.88%) Selenium
4 1 (5.88%) Team Foundation Server
General
1 3 (17.65%) Banking
1 3 (17.65%) Retail
2 2 (11.76%) Finance
2 2 (11.76%) Investment Banking
3 1 (5.88%) Legal
Libraries, Frameworks & Software Standards
1 6 (35.29%) Elastic Stack
2 5 (29.41%) Kafka
3 4 (23.53%) Spring
4 3 (17.65%) Hibernate
4 3 (17.65%) RabbitMQ
5 2 (11.76%) AngularJS
6 1 (5.88%) .NET
6 1 (5.88%) .NET Core
6 1 (5.88%) .NET Framework
6 1 (5.88%) Angular 2
6 1 (5.88%) ASP.NET
6 1 (5.88%) ASP.NET MVC
6 1 (5.88%) ASP.NET Web API
6 1 (5.88%) CSS3
6 1 (5.88%) Entity Framework
6 1 (5.88%) JSON
6 1 (5.88%) Node.js
6 1 (5.88%) React
6 1 (5.88%) REST
6 1 (5.88%) Spring Boot
Miscellaneous
1 3 (17.65%) Public Cloud
2 2 (11.76%) Analytical Skills
2 2 (11.76%) Management Information System
3 1 (5.88%) Computer Science
3 1 (5.88%) Greenfield Project
3 1 (5.88%) Semantic Web
3 1 (5.88%) State Machine
3 1 (5.88%) User Experience
3 1 (5.88%) Wiki
Operating Systems
1 6 (35.29%) Linux
2 5 (29.41%) Windows
3 3 (17.65%) CentOS
3 3 (17.65%) Red Hat Enterprise Linux
4 2 (11.76%) Windows 7
5 1 (5.88%) Windows Server
Processes & Methodologies
1 9 (52.94%) DevOps
2 6 (35.29%) Agile Software Development
2 6 (35.29%) Configuration Management
3 5 (29.41%) Scrum
4 3 (17.65%) Continuous Delivery
4 3 (17.65%) Kanban
4 3 (17.65%) Load Balancing
4 3 (17.65%) Open Source
5 2 (11.76%) Application Packaging
5 2 (11.76%) Build Automation
5 2 (11.76%) Integration Testing
5 2 (11.76%) Issue Tracking
5 2 (11.76%) IT Strategy
5 2 (11.76%) Machine Learning
5 2 (11.76%) Requirements Management
5 2 (11.76%) Signal Processing
5 2 (11.76%) Software Delivery
5 2 (11.76%) Statistics
5 2 (11.76%) SysML
5 2 (11.76%) Use Case
Programming Languages
1 7 (41.18%) Java
2 6 (35.29%) Python
3 5 (29.41%) SQL
4 4 (23.53%) Scala
5 3 (17.65%) Go
5 3 (17.65%) Ruby
6 2 (11.76%) PowerShell
6 2 (11.76%) R
7 1 (5.88%) C#
7 1 (5.88%) JavaScript
Qualifications
1 2 (11.76%) SC Cleared
1 2 (11.76%) Security Cleared
2 1 (5.88%) Check Point Certification
2 1 (5.88%) Degree
2 1 (5.88%) VMware Certified Professional (VCP)
System Software
1 4 (23.53%) Docker
2 2 (11.76%) Active Directory
2 2 (11.76%) Firmware
2 2 (11.76%) Microsoft App-V
Systems Management
1 6 (35.29%) Ansible
2 5 (29.41%) Terraform
3 4 (23.53%) Opscode Chef
4 2 (11.76%) Kubernetes
5 1 (5.88%) SCCM
Vendors
1 5 (29.41%) Microsoft
2 4 (23.53%) Oracle
3 3 (17.65%) Google
4 2 (11.76%) AppSense
4 2 (11.76%) Citrix
4 2 (11.76%) EMC
4 2 (11.76%) IBM
4 2 (11.76%) VMware
5 1 (5.88%) CheckPoint
5 1 (5.88%) Cisco
5 1 (5.88%) Juniper
5 1 (5.88%) Palo Alto
5 1 (5.88%) Trend Micro
5 1 (5.88%) Xamarin