The table below looks at the statistics for CentOS skills in IT contracts advertised across the UK. Included is a guide to the average contractor rates offered in IT contracts that have cited CentOS over the 3 months to 27 August 2015 with a comparison to the same period in the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

Location
3 months to
27 Aug 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 397 357 445
Rank change year-on-year
-40 +88
Contract jobs citing CentOS 243 263 148
As % of all contract IT jobs located in the UK 0.42% 0.47% 0.28%
As % of the Operating Systems category 1.97% 2.08% 1.23%
Number of daily rates quoted 145 194 110
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£400 £400 £368
Average daily rate % change year-on-year
- +8.84%
90% offered a daily rate of more than £300 £225 £220
10% offered a daily rate of more than £525 £501 £450
UK excluding London average daily rate £340 £375 £350
% change year-on-year
-9.33% +7.14%
Number of hourly rates quoted 2 0 3
Average hourly rate £36.00 - £36.00
90% offered a hourly rate of more than £34.40 - £31.20
10% offered a hourly rate of more than £37.60 - £43.20
UK excluding London average hourly rate £36.00 - £36.00

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in contract jobs advertised across the UK.

Operating Systems Category
UK
Contract IT job ads with a match in the
Operating Systems category
12320 12662 12023
As % of all contract IT jobs located in the UK 21.44% 22.48% 22.52%
Number of daily rates quoted 7264 7195 6699
Average daily rate £375 £350 £350
Average daily rate % change year-on-year
+7.14% -
90% offered a daily rate of more than £175 £163 £175
10% offered a daily rate of more than £525 £513 £525
UK excluding London average daily rate £350 £323 £325
% change year-on-year
+8.52% -0.76%
Number of hourly rates quoted 964 1076 1020
Average hourly rate £17.00 £15.75 £16.50
Average hourly rate % change year-on-year
+7.93% -4.54%
90% offered a hourly rate of more than £11.50 £11.00 £11.00
10% offered a hourly rate of more than £40.00 £35.00 £36.00
UK excluding London average hourly rate £16.50 £16.00 £16.00
% change year-on-year
+3.12% -

CentOS
Jobs Demand Trend

This chart provides the 3-month moving total of IT contractor jobs citing CentOS within the UK as a proportion of the total demand within the Operating Systems category.

CentOS Jobs Demand Trend in the UK

CentOS
Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing CentOS within the UK.

CentOS Daily Rate Trend in the UK

CentOS
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS within the UK over the 3 months to 27 August 2015.

CentOS Daily Rate Histogram in the UK

CentOS
Hourly Rate Trend

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing CentOS within the UK.

CentOS Hourly Rate Trend in the UK

CentOS
Top 30 Contract Locations

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing CentOS within the UK over the 3 months to 27 August 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -37 237 £405 +1.25% 112
London +31 134 £425 +3.03% 48
Yorkshire -11 42 £300 +33.33% 8
West Yorkshire -19 31 £300 +33.33% 3
Leeds -29 27 £300 +33.33% 3
South East -23 22 £381 +4.45% 18
South West -53 16 £325 -17.46% 11
Croydon - 13 £450 - 2
City of London -5 12 £410 -8.88% 5
South Yorkshire -4 11 £425 -
Oxfordshire - 8 £408 -
East Midlands -12 6 £407 +24.27% 4
North West -28 6 £350 -6.66% 8
Berkshire +12 5 £375 - 7
Chester -5 5 - - 1
Cheshire -18 5 - - 2
Bournemouth - 5 £450 -
Dorset - 5 £450 -
Wiltshire - 5 £450 - 1
East of England +4 4 £190 - 8
Cambridge 0 4 £190 - 6
Cambridgeshire -2 4 £190 - 7
Surrey -6 4 £425 -5.55% 4
Sheffield -12 4 £425 -
Hampshire -17 4 £388 +6.16% 6
Bristol -44 4 £325 -18.75% 1
West Midlands +11 3 £306 - 6
Northampton -4 3 £407 +103.50%
Nottinghamshire -6 3 - - 4
Northamptonshire -8 3 £407 +103.50%

CentOS
Top 30 Related IT Skills

For the 6 months to 27 August 2015, IT contractor jobs within the UK citing CentOS also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited CentOS.

1 404 (84.52%) Linux
2 222 (46.44%) Red Hat
3 213 (44.56%) Puppet
4 201 (42.05%) Ubuntu
5 196 (41.00%) DevOps
6 161 (33.68%) Continuous Integration
7 160 (33.47%) Agile Software Development
8 157 (32.85%) Jenkins
9 147 (30.75%) Red Hat Enterprise Linux
10 140 (29.29%) VMware
10 140 (29.29%) Python
11 139 (29.08%) Java
11 139 (29.08%) Git (software)
12 135 (28.24%) Bash Shell
13 129 (26.99%) MySQL
14 128 (26.78%) Opscode Chef
15 121 (25.31%) Apache
16 115 (24.06%) Windows
17 113 (23.64%) Security Cleared
18 105 (21.97%) Amazon AWS
19 101 (21.13%) MongoDB
20 95 (19.87%) PHP
21 94 (19.67%) Configuration Management
22 86 (17.99%) SC Cleared
23 85 (17.78%) Tomcat
24 83 (17.36%) Perl
25 82 (17.15%) Ruby
25 82 (17.15%) Docker
26 79 (16.53%) JIRA
27 78 (16.32%) Splunk

CentOS
Top Related IT Skills by Category

For the 6 months to 27 August 2015, IT contractor jobs within the UK citing CentOS also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited CentOS. Up to 20 skills are shown per category.

Application Platforms
1 121 (25.31%) Apache
2 85 (17.78%) Tomcat
3 68 (14.23%) Confluence
4 65 (13.60%) nginx
5 58 (12.13%) Node.js
6 41 (8.58%) JBoss
7 25 (5.23%) Mule ESB
8 23 (4.81%) IIS
9 17 (3.56%) Jetty
10 16 (3.35%) WildFly
11 15 (3.14%) Alfresco
11 15 (3.14%) Elasticsearch
11 15 (3.14%) OpenStack
12 11 (2.30%) Mule
13 10 (2.09%) CMS
13 10 (2.09%) WebLogic
13 10 (2.09%) Drupal
14 9 (1.88%) GlassFish
14 9 (1.88%) Apache Qpid
14 9 (1.88%) Tornado
Applications
1 8 (1.67%) MS Office
2 3 (0.63%) MS Excel
3 2 (0.42%) PowerPivot
4 1 (0.21%) Photoshop
4 1 (0.21%) MS Visio
4 1 (0.21%) Adobe Illustrator
Business Applications
1 9 (1.88%) Oracle BPM
2 6 (1.26%) Magento
3 2 (0.42%) SAP Business One
3 2 (0.42%) SAP Oil and Gas
4 1 (0.21%) ResourceLink
4 1 (0.21%) Oracle EBS
4 1 (0.21%) Oracle Applications
4 1 (0.21%) Hyperion Enterprise
4 1 (0.21%) AWD
Cloud Services
1 105 (21.97%) Amazon AWS
2 37 (7.74%) Amazon EC2
3 35 (7.32%) Amazon S3
4 30 (6.28%) Amazon ELB
5 21 (4.39%) Google Cloud Platform
6 18 (3.77%) Route 53
7 12 (2.51%) PaaS
8 11 (2.30%) IaaS
9 10 (2.09%) Microsoft Azure
9 10 (2.09%) OpenShift
10 9 (1.88%) SaaS
10 9 (1.88%) Amazon SQS
10 9 (1.88%) AWS CloudFormation
11 4 (0.84%) Virtual Private Cloud
11 4 (0.84%) Amazon CloudSearch
11 4 (0.84%) Cloud Computing
11 4 (0.84%) GitHub
12 3 (0.63%) Rackspace Cloud
13 1 (0.21%) Heroku
13 1 (0.21%) Google Compute Engine
Communications & Networking
1 75 (15.69%) Firewall
2 45 (9.41%) SAN
3 38 (7.95%) DNS
4 35 (7.32%) LDAP
5 32 (6.69%) VPN
6 24 (5.02%) LAN
7 21 (4.39%) iSCSI
8 20 (4.18%) HTTP
9 17 (3.56%) TCP/IP
9 17 (3.56%) Reverse Proxy
10 15 (3.14%) SSL
10 15 (3.14%) WAN
11 14 (2.93%) DMZ
12 11 (2.30%) Internet
13 10 (2.09%) OpenLDAP
14 9 (1.88%) NAS
14 9 (1.88%) Network Security
14 9 (1.88%) SMTP
15 8 (1.67%) DHCP
15 8 (1.67%) BIG-IP
Database & Business Intelligence
1 129 (26.99%) MySQL
2 101 (21.13%) MongoDB
3 65 (13.60%) PostgreSQL
4 58 (12.13%) Redis
5 55 (11.51%) Hadoop
6 46 (9.62%) NoSQL
7 34 (7.11%) HBase
8 30 (6.28%) CouchDB
9 19 (3.97%) SQL Server
10 13 (2.72%) Relational Database
11 9 (1.88%) Infinispan
11 9 (1.88%) Riak
11 9 (1.88%) InterSystems Cache
12 7 (1.46%) Big Data
13 6 (1.26%) Couchbase
13 6 (1.26%) Amazon RDS
13 6 (1.26%) RDBMS
13 6 (1.26%) Apache Cassandra
14 5 (1.05%) MariaDB
15 4 (0.84%) SQL Server 2008
Development Applications
1 157 (32.85%) Jenkins
2 139 (29.08%) Git (software)
3 79 (16.53%) JIRA
4 65 (13.60%) Maven
5 39 (8.16%) Artifactory
6 38 (7.95%) Selenium
7 37 (7.74%) Cucumber
8 36 (7.53%) Subversion
9 32 (6.69%) IntelliJ
9 32 (6.69%) Spock
9 32 (6.69%) Geb
10 31 (6.49%) SonarQube
10 31 (6.49%) Hudson
10 31 (6.49%) Gerrit
11 29 (6.07%) JMeter
12 25 (5.23%) Gradle
13 21 (4.39%) Atlassian Bamboo
14 18 (3.77%) Mercurial
15 14 (2.93%) Mocha
16 11 (2.30%) Ant
General
1 26 (5.44%) Finance
2 16 (3.35%) Telecoms
3 5 (1.05%) Games
4 4 (0.84%) Electronics
5 3 (0.63%) Marketing
5 3 (0.63%) Advertising
6 2 (0.42%) Manufacturing
6 2 (0.42%) Military
7 1 (0.21%) Banking
7 1 (0.21%) Retail
7 1 (0.21%) Billing
7 1 (0.21%) Financial Institution
7 1 (0.21%) Aerospace
7 1 (0.21%) Legal
7 1 (0.21%) French Language
7 1 (0.21%) German Language
Job Titles
1 128 (26.78%) DevOps Engineer
2 82 (17.15%) Developer
3 61 (12.76%) Administrator
4 54 (11.30%) Systems Administrator
5 46 (9.62%) Linux Administrator
6 44 (9.21%) Linux Engineer
7 40 (8.37%) Java Developer
8 35 (7.32%) Linux Systems Administrator
9 25 (5.23%) Linux DevOps Engineer
10 18 (3.77%) Architect
11 16 (3.35%) PHP Developer
12 15 (3.14%) Consultant
13 13 (2.72%) Analyst
14 12 (2.51%) Technical Support
15 11 (2.30%) Systems Engineer
16 9 (1.88%) Software Engineer
16 9 (1.88%) Support Engineer
16 9 (1.88%) 2nd Line Support
16 9 (1.88%) Linux Support
17 8 (1.67%) Cloud Engineer
Libraries, Frameworks & Software Standards
1 75 (15.69%) Web Services
2 67 (14.02%) RabbitMQ
3 53 (11.09%) LAMP
4 49 (10.25%) HTML
5 48 (10.04%) Spring
6 47 (9.83%) RESTful
7 42 (8.79%) JAX-RS
7 42 (8.79%) Apache Camel
8 37 (7.74%) CSS
9 35 (7.32%) jQuery
10 34 (7.11%) HTML5
11 32 (6.69%) Grails
11 32 (6.69%) Spring Boot
12 30 (6.28%) JSON
13 27 (5.65%) J2EE
14 26 (5.44%) Kafka
15 25 (5.23%) XML
16 22 (4.60%) CSS3
17 20 (4.18%) Memcached
17 20 (4.18%) AngularJS
Miscellaneous
1 27 (5.65%) Data Centre
2 17 (3.56%) Analytical Skills
3 14 (2.93%) NHS
4 13 (2.72%) Clustering
4 13 (2.72%) User Experience
5 12 (2.51%) Private Cloud
6 11 (2.30%) Enterprise Software
7 10 (2.09%) W3C
8 7 (1.46%) PKI
8 7 (1.46%) Enterprise Storage
8 7 (1.46%) Wiki
9 6 (1.26%) Fat Client
9 6 (1.26%) Thin Client
9 6 (1.26%) Management Information System
9 6 (1.26%) Replication
10 5 (1.05%) Client/Server
10 5 (1.05%) EqualLogic
11 4 (0.84%) Online Games
11 4 (0.84%) Mobile App
11 4 (0.84%) Tandem
Operating Systems
1 404 (84.52%) Linux
2 201 (42.05%) Ubuntu
3 147 (30.75%) Red Hat Enterprise Linux
4 115 (24.06%) Windows
5 73 (15.27%) UNIX
6 35 (7.32%) Debian
7 30 (6.28%) Fedora
7 30 (6.28%) Windows Server 2012
8 28 (5.86%) Windows Server 2008
9 26 (5.44%) Windows Server 2003
10 17 (3.56%) Solaris
11 13 (2.72%) Windows 7
12 9 (1.88%) Windows 8
13 8 (1.67%) SUSE
13 8 (1.67%) HPUX
14 5 (1.05%) Windows XP
15 4 (0.84%) Mac OS
16 3 (0.63%) Android
17 2 (0.42%) AIX
18 1 (0.21%) VMS
Processes & Methodologies
1 196 (41.00%) DevOps
2 161 (33.68%) Continuous Integration
3 160 (33.47%) Agile Software Development
4 94 (19.67%) Configuration Management
5 72 (15.06%) TDD
6 65 (13.60%) Microservices
7 56 (11.72%) Open Source
8 54 (11.30%) Continuous Delivery
9 50 (10.46%) Scrum
10 43 (9.00%) ITIL
11 39 (8.16%) Service Management
12 35 (7.32%) Workflow
13 30 (6.28%) BDD
14 26 (5.44%) API Development
14 26 (5.44%) Software Engineering
15 23 (4.81%) E-Commerce
16 22 (4.60%) Data Management
17 21 (4.39%) Mentoring
18 20 (4.18%) Load Balancing
18 20 (4.18%) OWASP
Programming Languages
1 140 (29.29%) Python
2 139 (29.08%) Java
3 135 (28.24%) Bash Shell
4 95 (19.87%) PHP
5 83 (17.36%) Perl
6 82 (17.15%) Ruby
7 70 (14.64%) JavaScript
8 61 (12.76%) SQL
9 40 (8.37%) Shell Script
10 35 (7.32%) Groovy
11 12 (2.51%) PowerShell
12 10 (2.09%) Scala
12 10 (2.09%) C++
13 5 (1.05%) C#
14 4 (0.84%) C
14 4 (0.84%) Go
15 1 (0.21%) PL/SQL
15 1 (0.21%) VB
Qualifications
1 113 (23.64%) Security Cleared
2 86 (17.99%) SC Cleared
3 33 (6.90%) RHCE
4 22 (4.60%) Cisco Certification
5 17 (3.56%) DV Cleared
6 14 (2.93%) CCNA
7 11 (2.30%) CCNP
7 11 (2.30%) Degree
8 4 (0.84%) Microsoft Certification
9 3 (0.63%) MCSE
9 3 (0.63%) JNCIA
9 3 (0.63%) JNCIS
10 2 (0.42%) CTC Cleared
11 1 (0.21%) BC Cleared
11 1 (0.21%) MCDST
11 1 (0.21%) MCTS
11 1 (0.21%) ISTQB
11 1 (0.21%) ISEB
11 1 (0.21%) VMware Certified Professional (VCP)
11 1 (0.21%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 34 (7.11%) QA
2 5 (1.05%) WAI
3 4 (0.84%) PCI DSS
4 3 (0.63%) ISO 9001
4 3 (0.63%) SLA
4 3 (0.63%) ISO/IEC 27001
System Software
1 82 (17.15%) Docker
2 68 (14.23%) VMware Infrastructure
3 56 (11.72%) Active Directory
4 38 (7.95%) vCloud
5 18 (3.77%) VMware ESXi
5 18 (3.77%) Postfix
6 15 (3.14%) Varnish
7 14 (2.93%) iptables
7 14 (2.93%) NFS
8 13 (2.72%) Squid
8 13 (2.72%) Hyper-V
8 13 (2.72%) VMware Server
8 13 (2.72%) vSphere
9 10 (2.09%) Samba
9 10 (2.09%) VMware ESX
10 9 (1.88%) VirtualBox
11 6 (1.26%) Terminal Services
11 6 (1.26%) qmail
12 4 (0.84%) SpamAssassin
12 4 (0.84%) FreeRADIUS
Systems Management
1 213 (44.56%) Puppet
2 128 (26.78%) Opscode Chef
3 67 (14.02%) Ansible
4 65 (13.60%) Salt
5 51 (10.67%) ZABBIX
6 47 (9.83%) Vagrant
7 43 (9.00%) Graphite
7 43 (9.00%) Rundeck
8 35 (7.32%) logstash
9 33 (6.90%) Nagios
10 31 (6.49%) HAProxy
11 27 (5.65%) Kibana
12 13 (2.72%) Cacti
13 11 (2.30%) Opsview
14 10 (2.09%) SELinux
15 7 (1.46%) yum
15 7 (1.46%) OVSD
16 6 (1.26%) cPanel
17 5 (1.05%) Red Hat Satellite
18 4 (0.84%) HP Quality Center
Vendors
1 222 (46.44%) Red Hat
2 140 (29.29%) VMware
3 78 (16.32%) Splunk
4 49 (10.25%) Cisco
5 44 (9.21%) Microsoft
6 32 (6.69%) Oracle
7 25 (5.23%) HP
8 22 (4.60%) NetApp
8 22 (4.60%) Google
9 18 (3.77%) Juniper
10 16 (3.35%) Dell
11 14 (2.93%) Rackspace
12 13 (2.72%) Twitter
12 13 (2.72%) F5
13 12 (2.51%) Atlassian
14 11 (2.30%) Citrix
14 11 (2.30%) Zend
14 11 (2.30%) Tealeaf
14 11 (2.30%) Riverbed
15 10 (2.09%) Pega
Nottinghamshire
X4 Group
Rate: £32 - 35 per hour
Posted: Yesterday
Croydon, Surrey
E-synergy Solutions
Rate: £400 - £425 per day
Posted: Yesterday
London
Spargonet Consulting Plc
Rate: £400 - £450 per day
Posted: Yesterday
Cardiff, South Glamorgan
Lexis Nexis Risk Solutions
Rate: Competitive Day Rate
Posted: Yesterday
London
ClearCube Consulting
Rate: From £450 to £550 per day
Posted: Yesterday
London
JPNG Recruitment
Rate: £125 - £150 per day
Posted: 2 days ago
London
Blue Personnel
Rate: From £450 to £500 per day
Posted: 3 days ago
London
ClearCube Consulting
Rate: From £450 to £550 per day
Posted: 4 days ago
London
Hays IT - Uk Posting account
Rate: £300.00 - £340.00 per day
Posted: 7 days ago
London
Real Staffing
Rate: £320 - £380 per day + competitive
Posted: 10 days ago
Nottinghamshire
Real Staffing
Rate: £260 - £280 per day + competitive
Posted: 15 days ago
Swindon
Computer Futures
Rate: £330 - £360 per day + competitive
Posted: 22 days ago
Edinburgh
Cathcart Associates
Rate: £300 - £400 per day
Posted: 24 days ago
Newcastle Upon Tyne
Resource Partners Ltd
Posted: 25 days ago
Leeds
Resource Partners Ltd
Posted: 25 days ago