The following table provides summary statistics for contract job vacancies with a requirement for VirtualBox skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited VirtualBox over the 3 months to 30 March 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.

Oracle VM VirtualBox
UK
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 594 629 611
Rank change year-on-year +35 -18  
Contract jobs citing VirtualBox 6 11 14
As % of all contract IT jobs advertised in the UK 0.013% 0.020% 0.026%
As % of the System Software category 0.12% 0.19% 0.25%
Number of daily rates quoted 6 6 9
Median daily rate £369 £488 £490
Median daily rate % change year-on-year -24.35% -0.51%  
90% offered a daily rate of more than £270 £438 £375
10% offered a daily rate of more than £480 £575 £530
UK excluding London median daily rate £338 £400 £375
% change year-on-year -15.62% +6.66%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £22.50
UK excluding London median hourly rate - - £22.50

VirtualBox 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 with a requirement for system software skills.

Contract System Software Skills
UK
Contract job vacancies with a requirement for system software skills 5084 5919 5511
As % of all contract IT job vacancies advertised in the UK 11.17% 10.93% 10.26%
Number of daily rates quoted 3238 3608 3035
Median daily rate £400 £398 £375
Median daily rate % change year-on-year +0.62% +6.00%  
90% offered a daily rate of more than £190 £200 £185
10% offered a daily rate of more than £575 £535 £525
UK excluding London median daily rate £350 £370 £350
% change year-on-year -5.40% +5.71%  
Number of hourly rates quoted 357 458 641
Median hourly rate £17.00 £16.00 £16.50
Median hourly rate % change year-on-year +6.25% -3.03%  
90% offered a hourly rate of more than £10.50 £11.00 £11.00
10% offered a hourly rate of more than £47.00 £45.00 £33.50
UK excluding London median hourly rate £16.00 £16.50 £15.85
% change year-on-year -3.03% +4.10%  

VirtualBox
Job Vacancy Trend

The job posting trend of jobs advertised citing VirtualBox as a proportion of all contract or permanent IT jobs with a match in the System Software category.

Job vacancy trend for VirtualBox in the UK

VirtualBox
Contractor Daily Rate Trend

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

Contractor daily rate trend for VirtualBox in the UK

VirtualBox
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing VirtualBox over the 3 months to 30 March 2017.

Contractor daily rate histogram for VirtualBox in the UK

VirtualBox
Top 4 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing VirtualBox within the UK over the 3 months to 30 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
England +44 6 £369 -24.35% 14
London +32 5 £400 -20.00% 2
Oxfordshire - 1 £338 -
South East - 1 £338 - 2

For the 6 months to 30 March 2017, IT contractor jobs citing VirtualBox also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for VirtualBox.

1 21 (80.77%) Linux
2 18 (69.23%) Git (software)
3 17 (65.38%) Jenkins
4 15 (57.69%) Puppet
4 15 (57.69%) DevOps
4 15 (57.69%) Oracle
5 14 (53.85%) Vagrant
6 13 (50.00%) Opscode Chef
6 13 (50.00%) VMware Infrastructure
6 13 (50.00%) VMware
7 12 (46.15%) Java
7 12 (46.15%) Python
8 11 (42.31%) MySQL
8 11 (42.31%) Nagios
9 10 (38.46%) Configuration Management
9 10 (38.46%) Ruby
9 10 (38.46%) Ansible
10 9 (34.62%) Docker
10 9 (34.62%) Google
10 9 (34.62%) Agile Software Development
10 9 (34.62%) Amazon AWS
10 9 (34.62%) Perl
11 8 (30.77%) HTTP
11 8 (30.77%) Bash Shell
11 8 (30.77%) Continuous Integration
12 7 (26.92%) CentOS
12 7 (26.92%) Red Hat Enterprise Linux
12 7 (26.92%) Maven
12 7 (26.92%) PostgreSQL
12 7 (26.92%) MongoDB

VirtualBox
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 6 (23.08%) OpenStack
2 5 (19.23%) Apache
2 5 (19.23%) Apache Spark
3 4 (15.38%) WebLogic
4 2 (7.69%) Confluence
5 1 (3.85%) IIS
5 1 (3.85%) Oracle SOA Suite
Business Applications
1 1 (3.85%) Eloqua
1 1 (3.85%) SAP Oil and Gas
Cloud Services
1 9 (34.62%) Amazon AWS
2 5 (19.23%) Google Cloud Platform
2 5 (19.23%) IaaS
2 5 (19.23%) Loggly
2 5 (19.23%) Sumo Logic
3 4 (15.38%) G Suite
4 3 (11.54%) Amazon EC2
4 3 (11.54%) Amazon S3
4 3 (11.54%) Route 53
5 2 (7.69%) Amazon ElastiCache
5 2 (7.69%) AWS Elastic Beanstalk
5 2 (7.69%) AWS Lambda
5 2 (7.69%) Slack
5 2 (7.69%) Virtual Private Cloud
6 1 (3.85%) AWS CloudFormation
6 1 (3.85%) Cloud Computing
Communications & Networking
1 8 (30.77%) HTTP
2 6 (23.08%) DNS
2 6 (23.08%) Internet
3 5 (19.23%) VPN
4 4 (15.38%) LDAP
5 3 (11.54%) TCP/IP
6 2 (7.69%) Skype
6 2 (7.69%) SSL
7 1 (3.85%) BGP
7 1 (3.85%) FTP
7 1 (3.85%) MPLS
7 1 (3.85%) OSPF
7 1 (3.85%) SSH
7 1 (3.85%) VLAN
Database & Business Intelligence
1 11 (42.31%) MySQL
2 7 (26.92%) Apache Cassandra
2 7 (26.92%) MongoDB
2 7 (26.92%) PostgreSQL
3 5 (19.23%) Hadoop
3 5 (19.23%) HBase
3 5 (19.23%) Redis
3 5 (19.23%) Relational Database
4 4 (15.38%) Riak
5 3 (11.54%) SQL Server
6 2 (7.69%) Amazon DynamoDB
6 2 (7.69%) Amazon RDS
6 2 (7.69%) NoSQL
7 1 (3.85%) SQL Server Integration Services
Development Applications
1 18 (69.23%) Git (software)
2 17 (65.38%) Jenkins
3 14 (53.85%) Vagrant
4 7 (26.92%) Maven
4 7 (26.92%) Sonatype Nexus
5 5 (19.23%) Grunt
6 4 (15.38%) Ant
6 4 (15.38%) JIRA
6 4 (15.38%) Selenium
6 4 (15.38%) Subversion
7 2 (7.69%) Artifactory
7 2 (7.69%) Atlassian Bamboo
7 2 (7.69%) SonarQube
8 1 (3.85%) ClearCase
8 1 (3.85%) Gradle
General
1 2 (7.69%) Telecoms
2 1 (3.85%) Electronics
2 1 (3.85%) Finance
2 1 (3.85%) Manufacturing
2 1 (3.85%) Marketing
Job Titles
1 9 (34.62%) DevOps Engineer
2 5 (19.23%) Developer
2 5 (19.23%) Lead DevOps
2 5 (19.23%) Linux/Unix DevOps
3 4 (15.38%) AWS DevOps
3 4 (15.38%) Java Developer
3 4 (15.38%) Mac Engineer
3 4 (15.38%) Unix Engineer
3 4 (15.38%) Unix Scripter
3 4 (15.38%) Unix Scripting Engineer
3 4 (15.38%) Virtualisation Engineer
4 3 (11.54%) Senior Mac Engineer
4 3 (11.54%) Technical Leader
5 1 (3.85%) DevOps Specialist
5 1 (3.85%) Linux DevOps Engineer
5 1 (3.85%) Linux Engineer
5 1 (3.85%) Senior Data Warehouse Specialist
5 1 (3.85%) Senior DevOps Engineer
5 1 (3.85%) VMware Engineer
5 1 (3.85%) WebLogic Developer
Libraries, Frameworks & Software Standards
1 7 (26.92%) Elastic Stack
2 6 (23.08%) AngularJS
2 6 (23.08%) CSS
2 6 (23.08%) HTML
2 6 (23.08%) HTML5
3 5 (19.23%) CSS3
3 5 (19.23%) jQuery
3 5 (19.23%) LAMP
3 5 (19.23%) LAPP Stack
4 4 (15.38%) JSON
4 4 (15.38%) REST
4 4 (15.38%) XML
5 3 (11.54%) JSP
6 2 (7.69%) .NET
7 1 (3.85%) Middleware
7 1 (3.85%) Node.js
7 1 (3.85%) Oracle Fusion
7 1 (3.85%) RabbitMQ
7 1 (3.85%) RESTful
7 1 (3.85%) Web Services
Miscellaneous
1 5 (19.23%) Replication
2 1 (3.85%) Analytical Skills
2 1 (3.85%) CESG
2 1 (3.85%) Clustering
2 1 (3.85%) Data Centre
2 1 (3.85%) Digital Media
2 1 (3.85%) Management Information System
Operating Systems
1 21 (80.77%) Linux
2 7 (26.92%) CentOS
2 7 (26.92%) CoreOS
2 7 (26.92%) Red Hat Enterprise Linux
3 6 (23.08%) Unix
4 5 (19.23%) Windows
5 4 (15.38%) Android
5 4 (15.38%) Apple iOS
5 4 (15.38%) Mac OS X
5 4 (15.38%) Mac OS X Server
6 2 (7.69%) SUSE
7 1 (3.85%) AIX
7 1 (3.85%) HPUX
7 1 (3.85%) Solaris
7 1 (3.85%) SUSE Linux Enterprise Server
7 1 (3.85%) VMS
7 1 (3.85%) Windows Server
7 1 (3.85%) Windows Server 2008
7 1 (3.85%) Windows Server 2012
Processes & Methodologies
1 15 (57.69%) DevOps
2 10 (38.46%) Configuration Management
3 9 (34.62%) Agile Software Development
4 8 (30.77%) Continuous Integration
5 6 (23.08%) TDD
6 5 (19.23%) BDD
6 5 (19.23%) Mentoring
7 4 (15.38%) Application Virtualisation
7 4 (15.38%) Coaching
7 4 (15.38%) Continuous Improvement
7 4 (15.38%) Disk Encryption
7 4 (15.38%) Extreme Programming
7 4 (15.38%) Kanban
7 4 (15.38%) Root Cause Analysis
7 4 (15.38%) Scrum
7 4 (15.38%) Software Engineering
7 4 (15.38%) Software Testing
7 4 (15.38%) Unit Testing
7 4 (15.38%) User Acceptance Testing
7 4 (15.38%) User Stories
Programming Languages
1 12 (46.15%) Java
1 12 (46.15%) Python
2 10 (38.46%) Ruby
3 9 (34.62%) Perl
4 8 (30.77%) Bash Shell
5 5 (19.23%) JavaScript
5 5 (19.23%) PHP
5 5 (19.23%) PL/SQL
5 5 (19.23%) SQL
6 2 (7.69%) C#
6 2 (7.69%) Go
6 2 (7.69%) Groovy
6 2 (7.69%) Scala
7 1 (3.85%) C++
7 1 (3.85%) Korn
7 1 (3.85%) Shell Script
Qualifications
1 1 (3.85%) BPSS Clearance
1 1 (3.85%) CCNP
1 1 (3.85%) CESG Certified Professional
1 1 (3.85%) Cisco Certification
Quality Assurance & Compliance
1 1 (3.85%) Disclosure Scotland
System Software
1 13 (50.00%) VMware Infrastructure
2 9 (34.62%) Docker
3 5 (19.23%) Active Directory
3 5 (19.23%) HDFS
4 4 (15.38%) VMware ESXi
5 2 (7.69%) LXC
6 1 (3.85%) KVM
6 1 (3.85%) NFS
6 1 (3.85%) Virtual Machines
6 1 (3.85%) VMware ESX
6 1 (3.85%) Xen
Systems Management
1 15 (57.69%) Puppet
2 13 (50.00%) Opscode Chef
3 11 (42.31%) Nagios
4 10 (38.46%) Ansible
5 5 (19.23%) Kubernetes
5 5 (19.23%) Salt
5 5 (19.23%) ZABBIX
6 4 (15.38%) Jamf Pro
6 4 (15.38%) Norton AntiVirus
6 4 (15.38%) SCCM
6 4 (15.38%) Symantec Endpoint Protection
6 4 (15.38%) Zenoss
7 3 (11.54%) Terraform
8 2 (7.69%) OSSEC
Vendors
1 15 (57.69%) Oracle
2 13 (50.00%) VMware
3 9 (34.62%) Google
4 7 (26.92%) New Relic
5 5 (19.23%) Rackspace
5 5 (19.23%) Red Hat
5 5 (19.23%) SaltStack
5 5 (19.23%) Splunk
6 4 (15.38%) Apple
6 4 (15.38%) Citrix
6 4 (15.38%) Microsoft
6 4 (15.38%) Symantec
7 2 (7.69%) SAP
8 1 (3.85%) Cisco
8 1 (3.85%) HP
8 1 (3.85%) IBM