The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Xen skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Xen over the 3 months to 29 June 2017 with a comparison to the 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.

Xen Project
London / City of London
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank - 159 200
Contract jobs citing Xen 0 4 10
As % of all contract IT jobs advertised in the City of London - 0.12% 0.17%
As % of the System Software category - 1.12% 1.77%
Number of daily rates quoted 0 2 8
Median daily rate - £655 £408
Median daily rate % change year-on-year - +60.73%  
UK excluding London median daily rate £505 £525 £275
% change year-on-year -3.80% +90.90%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Xen is in the system software skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for system software skills.

Contract System Software Skills
City of London
Contract job vacancies with a requirement for system software skills 329 358 566
As % of all contract IT job vacancies advertised in the City of London 10.07% 10.71% 9.70%
Number of daily rates quoted 343 534 682
Median daily rate £463 £475 £375
Median daily rate % change year-on-year -2.63% +26.66%  
90% offered a daily rate of more than £185 £235 £215
10% offered a daily rate of more than £638 £603 £550
UK excluding London median daily rate £375 £350 £325
% change year-on-year +7.14% +7.69%  
Number of hourly rates quoted 7 32 62
Median hourly rate £21.25 £19.00 £22.83
Median hourly rate % change year-on-year +11.84% -16.77%  
90% offered a hourly rate of more than £13.55 £11.25 £13.25
10% offered a hourly rate of more than £152.25 £22.00 £28.30
UK excluding London median hourly rate £16.00 £22.50 £17.50
% change year-on-year -28.88% +28.57%  

Xen
Job Vacancy Trend in the City of London

Job postings citing Xen as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Xen in the City of London

Xen
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 Xen in the City of London.

Contractor daily rate trend for Xen in the City of London

For the 6 months to 29 June 2017, IT contractor jobs citing Xen also mentioned the following 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 with a requirement for Xen.

1 2 (66.67%) Windows
1 2 (66.67%) Cisco
1 2 (66.67%) Active Directory
1 2 (66.67%) Citrix
1 2 (66.67%) CheckPoint
1 2 (66.67%) VMware
1 2 (66.67%) TCP/IP
1 2 (66.67%) Artificial Intelligence
1 2 (66.67%) PowerShell
1 2 (66.67%) Hyper-V
1 2 (66.67%) Big Data
1 2 (66.67%) Mobile First
1 2 (66.67%) Windows Server
2 1 (33.33%) Digital Transformation Programme
2 1 (33.33%) CloudStack
2 1 (33.33%) Opscode Chef
2 1 (33.33%) Ansible
2 1 (33.33%) DevOps
2 1 (33.33%) Unix
2 1 (33.33%) XenServer
2 1 (33.33%) Amazon AWS
2 1 (33.33%) Open Source
2 1 (33.33%) vSphere
2 1 (33.33%) Bash Shell
2 1 (33.33%) Network Architecture
2 1 (33.33%) Puppet
2 1 (33.33%) OpenStack
2 1 (33.33%) Ruby
2 1 (33.33%) VLAN
2 1 (33.33%) VPN

Xen
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:

Application Platforms
1 1 (33.33%) CloudStack
1 1 (33.33%) OpenStack
Cloud Services
1 1 (33.33%) Amazon AWS
Communications & Networking
1 2 (66.67%) TCP/IP
2 1 (33.33%) Firewall
2 1 (33.33%) IPsec
2 1 (33.33%) VLAN
2 1 (33.33%) VPN
2 1 (33.33%) WAN
Database & Business Intelligence
1 2 (66.67%) Big Data
General
1 1 (33.33%) Law
Job Titles
1 1 (33.33%) Architect
1 1 (33.33%) Cisco Architect
1 1 (33.33%) Cisco Network Architect
1 1 (33.33%) DevOps Engineer
1 1 (33.33%) Digital Transformation
1 1 (33.33%) Network Architect
1 1 (33.33%) Network Design Architect
1 1 (33.33%) Systems Engineer
1 1 (33.33%) Windows Engineer
1 1 (33.33%) Windows Systems Engineer
Operating Systems
1 2 (66.67%) Windows
1 2 (66.67%) Windows Server
2 1 (33.33%) Linux
2 1 (33.33%) Unix
Processes & Methodologies
1 2 (66.67%) Artificial Intelligence
1 2 (66.67%) Mobile First
2 1 (33.33%) DevOps
2 1 (33.33%) Digital Transformation Programme
2 1 (33.33%) Migration
2 1 (33.33%) Network Architecture
2 1 (33.33%) Network Design
2 1 (33.33%) Open Source
Programming Languages
1 2 (66.67%) PowerShell
2 1 (33.33%) Bash Shell
2 1 (33.33%) Python
2 1 (33.33%) Ruby
2 1 (33.33%) Shell Script
System Software
1 2 (66.67%) Active Directory
1 2 (66.67%) Hyper-V
2 1 (33.33%) vSphere
2 1 (33.33%) XenServer
Systems Management
1 1 (33.33%) Ansible
1 1 (33.33%) Opscode Chef
1 1 (33.33%) Puppet
Vendors
1 2 (66.67%) CheckPoint
1 2 (66.67%) Cisco
1 2 (66.67%) Citrix
1 2 (66.67%) VMware
2 1 (33.33%) Juniper