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 10 February 2016 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
10 Feb 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 355 358 489
Rank change year-on-year
+3 +131
Contract jobs citing CentOS 291 267 99
As % of all contract IT jobs located in the UK 0.57% 0.52% 0.20%
As % of the Operating Systems category 2.64% 2.29% 0.89%
Number of daily rates quoted 201 181 66
Average daily rate £450 £425 £400
Average daily rate % change year-on-year
+5.88% +6.25%
90% offered a daily rate of more than £339 £245 £275
10% offered a daily rate of more than £550 £525 £463
UK excluding London average daily rate £450 £350 £400
% change year-on-year
+28.57% -12.50%
Number of hourly rates quoted 3 1 1
Average hourly rate £50.00 £47.50 £15.00
Average hourly rate % change year-on-year
+5.26% +216.66%
UK excluding London average hourly rate - £47.50 £15.00
% change year-on-year
- +216.66%

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
11014 11655 11103
As % of all contract IT jobs located in the UK 21.41% 22.51% 22.33%
Number of daily rates quoted 6672 6745 6000
Average daily rate £375 £368 £350
Average daily rate % change year-on-year
+2.04% +5.00%
90% offered a daily rate of more than £180 £170 £150
10% offered a daily rate of more than £535 £513 £500
UK excluding London average daily rate £350 £335 £308
% change year-on-year
+4.47% +8.94%
Number of hourly rates quoted 778 921 1006
Average hourly rate £17.50 £16.00 £16.00
Average hourly rate % change year-on-year
+9.37% -
90% offered a hourly rate of more than £11.50 £11.00 £11.00
10% offered a hourly rate of more than £46.00 £36.25 £32.50
UK excluding London average hourly rate £17.50 £16.00 £15.00
% change year-on-year
+9.37% +6.66%

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 10 February 2016.

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 10 February 2016. 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 +20 286 £450 +5.88% 121
London +39 168 £463 +2.77% 46
South East +20 45 £448 +27.85% 32
Yorkshire -2 39 £450 +95.65% 7
Berkshire +30 28 £450 +7.78% 11
West Yorkshire -3 26 £450 +91.48% 3
Reading - 22 £449 - 10
Leeds -17 13 £500 +112.76% 2
South Yorkshire - 13 £508 -
Sheffield - 13 £508 -
City of London +34 12 £448 -5.78% 10
North West -9 12 £400 +45.45% 12
Manchester -6 11 £400 - 5
South West -25 11 £375 -6.25% 7
Hampshire -1 9 £450 +25.43% 6
Croydon -5 6 £425 +6.25% 1
Surrey -9 6 £338 - 9
North East -17 5 £500 +66.66% 3
Tyne and Wear -24 5 £500 +66.66% 3
Newcastle upon Tyne -27 5 £500 +66.66% 3
Cambridgeshire +11 4 £360 +111.76%
Woking +7 4 £338 -
Bracknell +1 4 £575 +37.72% 1
East of England -6 4 £360 +30.90% 3
Cambridge -7 4 £360 +111.76%
Bristol -26 4 £350 -15.15% 2
Harrow - 4 £500 -
Gloucestershire +9 3 £400 -11.11% 5
Wiltshire -2 3 - -
Hammersmith - 3 £525 -

CentOS
Top 30 Related IT Skills

For the 6 months to 10 February 2016, 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.

1 496 (84.93%) Linux
2 307 (52.57%) Puppet
3 289 (49.49%) DevOps
4 281 (48.12%) Agile Software Development
5 278 (47.60%) Red Hat Enterprise Linux
6 277 (47.43%) Java
7 261 (44.69%) Ubuntu
8 254 (43.49%) Bash Shell
9 236 (40.41%) Jenkins
10 232 (39.73%) Git (software)
11 230 (39.38%) VMware
12 229 (39.21%) Red Hat
13 206 (35.27%) Continuous Integration
14 195 (33.39%) Configuration Management
15 176 (30.14%) VMware Infrastructure
16 165 (28.25%) Maven
17 162 (27.74%) Python
18 158 (27.05%) Ruby
19 142 (24.32%) Amazon AWS
20 138 (23.63%) Scrum
21 134 (22.95%) Security Cleared
22 120 (20.55%) Perl
23 115 (19.69%) Apache
24 114 (19.52%) SC Cleared
25 105 (17.98%) MySQL
26 104 (17.81%) Unix
27 103 (17.64%) Tomcat
28 101 (17.29%) Opscode Chef
28 101 (17.29%) Build Automation
29 100 (17.12%) Windows

CentOS
Top Related IT Skills by Category

For the 6 months to 10 February 2016, 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
1 115 (19.69%) Apache
2 103 (17.64%) Tomcat
3 73 (12.50%) nginx
4 65 (11.13%) Confluence
5 54 (9.25%) OpenStack
6 44 (7.53%) JBoss
7 40 (6.85%) WebSphere
8 26 (4.45%) WebSphere Application Server
9 25 (4.28%) Node.js
10 23 (3.94%) Elasticsearch
10 23 (3.94%) WebSphere Process Server
11 17 (2.91%) Jetty
12 11 (1.88%) Apache Spark
12 11 (1.88%) IIS
13 9 (1.54%) Alfresco
13 9 (1.54%) Mule ESB
14 8 (1.37%) SAS
15 7 (1.20%) WebLogic
16 5 (0.86%) Drupal
16 5 (0.86%) MS Exchange
Applications
1 10 (1.71%) MS Excel
2 8 (1.37%) Doxygen
2 8 (1.37%) HipChat
3 6 (1.03%) MS Office
4 5 (0.86%) Adobe Illustrator
4 5 (0.86%) Photoshop
5 2 (0.34%) 3ds Max
5 2 (0.34%) Acrobat
5 2 (0.34%) GIMP
5 2 (0.34%) MS PowerPoint
Business Applications
1 3 (0.51%) Magento
2 2 (0.34%) SAP Oil and Gas
Cloud Services
1 142 (24.32%) Amazon AWS
2 27 (4.62%) Google Cloud Platform
3 23 (3.94%) GitHub
4 17 (2.91%) Amazon EC2
5 16 (2.74%) Microsoft Azure
6 9 (1.54%) AWS CloudFormation
7 7 (1.20%) Amazon S3
8 5 (0.86%) Amazon ELB
9 4 (0.68%) OpenShift
9 4 (0.68%) PaaS
9 4 (0.68%) Route 53
9 4 (0.68%) SaaS
10 3 (0.51%) AWS Elastic Beanstalk
10 3 (0.51%) IaaS
10 3 (0.51%) Virtual Private Cloud
11 2 (0.34%) Amazon CloudWatch
11 2 (0.34%) Cloud Computing
11 2 (0.34%) CloudFront
11 2 (0.34%) Google Compute Engine
11 2 (0.34%) MailChimp
Communications & Networking
1 62 (10.62%) Firewall
2 60 (10.27%) TCP/IP
3 58 (9.93%) DNS
4 51 (8.73%) VPN
5 40 (6.85%) HTTP
6 25 (4.28%) iSCSI
6 25 (4.28%) LAN
7 24 (4.11%) SMTP
8 22 (3.77%) LDAP
9 21 (3.60%) SAN
10 19 (3.25%) Internet
11 18 (3.08%) SSL
12 16 (2.74%) DHCP
13 15 (2.57%) IMAP
14 14 (2.40%) SNMP
14 14 (2.40%) VLAN
15 13 (2.23%) BGP
15 13 (2.23%) WAN
15 13 (2.23%) Wi-Fi
16 12 (2.05%) FTP
Database & Business Intelligence
1 105 (17.98%) MySQL
2 99 (16.95%) PostgreSQL
3 90 (15.41%) MongoDB
4 43 (7.36%) Hadoop
4 43 (7.36%) NoSQL
5 31 (5.31%) Big Data
6 27 (4.62%) HBase
6 27 (4.62%) Relational Database
7 19 (3.25%) Apache Cassandra
8 18 (3.08%) Redis
9 15 (2.57%) CouchDB
10 12 (2.05%) Couchbase
11 11 (1.88%) Apache Hive
12 6 (1.03%) Amazon DynamoDB
12 6 (1.03%) MariaDB
12 6 (1.03%) SQL Server
13 4 (0.68%) Amazon RDS
14 3 (0.51%) Data Warehouse
14 3 (0.51%) DB2
14 3 (0.51%) Pentaho
Development Applications
1 236 (40.41%) Jenkins
2 232 (39.73%) Git (software)
3 165 (28.25%) Maven
4 78 (13.36%) JIRA
5 59 (10.10%) Subversion
6 45 (7.71%) Artifactory
7 35 (5.99%) Cucumber
7 35 (5.99%) Selenium
8 29 (4.97%) IntelliJ
9 27 (4.62%) SonarQube
10 26 (4.45%) Vagrant
11 25 (4.28%) GitLab
12 24 (4.11%) Geb
12 24 (4.11%) Hudson
12 24 (4.11%) Spock
13 23 (3.94%) Gradle
14 22 (3.77%) Atlassian Bamboo
15 20 (3.42%) Gerrit
16 18 (3.08%) Mocha
16 18 (3.08%) Sonatype Nexus
General
1 17 (2.91%) Finance
2 10 (1.71%) Telecoms
3 9 (1.54%) Games
4 4 (0.68%) Local Government
4 4 (0.68%) Marketing
4 4 (0.68%) Spanish Language
5 3 (0.51%) Advertising
6 2 (0.34%) Back Office
6 2 (0.34%) Banking
6 2 (0.34%) Electronics
6 2 (0.34%) French Language
6 2 (0.34%) German Language
6 2 (0.34%) Manufacturing
6 2 (0.34%) Retail
7 1 (0.17%) Legal
Job Titles
1 208 (35.62%) DevOps Engineer
2 96 (16.44%) Linux Engineer
3 91 (15.58%) Developer
4 69 (11.82%) Administrator
5 65 (11.13%) Linux/Unix DevOps
6 61 (10.45%) Systems Administrator
7 55 (9.42%) Operations Engineer
8 49 (8.39%) Linux DevOps Engineer
9 48 (8.22%) Linux Administrator
10 41 (7.02%) Linux Systems Administrator
11 39 (6.68%) Java Developer
12 32 (5.48%) Infrastructure Engineer
13 28 (4.79%) Architect
14 27 (4.62%) Automation Engineer
15 26 (4.45%) Consultant
16 22 (3.77%) Senior Linux Engineer
17 21 (3.60%) SC Cleared Java Developer
18 15 (2.57%) AWS Engineer
18 15 (2.57%) PHP Developer
18 15 (2.57%) Senior Developer
Libraries, Frameworks & Software Standards
1 83 (14.21%) Web Services
2 82 (14.04%) MCollective
3 70 (11.99%) LAMP
4 53 (9.08%) RESTful
5 43 (7.36%) Spring
6 38 (6.51%) LAPP Stack
7 29 (4.97%) jQuery
8 28 (4.79%) LEMP Stack
9 27 (4.62%) J2EE
10 26 (4.45%) HTML
11 25 (4.28%) Apache Camel
11 25 (4.28%) Spring Boot
12 24 (4.11%) Grails
12 24 (4.11%) JAX-RS
12 24 (4.11%) RabbitMQ
13 22 (3.77%) SOAP
14 21 (3.60%) ELK Stack
15 20 (3.42%) AngularJS
16 19 (3.25%) CSS
17 18 (3.08%) Twitter Bootstrap
Miscellaneous
1 18 (3.08%) Data Centre
1 18 (3.08%) Private Cloud
2 12 (2.05%) Analytical Skills
3 10 (1.71%) Enterprise Software
4 9 (1.54%) CCTV
4 9 (1.54%) Management Information System
4 9 (1.54%) SCADA
4 9 (1.54%) User Experience
5 8 (1.37%) Clustering
5 8 (1.37%) Mainframe
6 7 (1.20%) Algorithms
6 7 (1.20%) Mobile App
7 6 (1.03%) Data Structures
7 6 (1.03%) MPEG
7 6 (1.03%) Replication
8 5 (0.86%) Derivative
8 5 (0.86%) Wiki
9 4 (0.68%) Public Cloud
9 4 (0.68%) Tandem
10 3 (0.51%) PlayStation
Operating Systems
1 496 (84.93%) Linux
2 278 (47.60%) Red Hat Enterprise Linux
3 261 (44.69%) Ubuntu
4 104 (17.81%) Unix
5 100 (17.12%) Windows
6 40 (6.85%) Windows Server
7 38 (6.51%) AIX
8 34 (5.82%) Debian
9 31 (5.31%) Solaris
10 27 (4.62%) Windows Server 2012
11 22 (3.77%) Windows Server 2008
12 17 (2.91%) SUSE
13 15 (2.57%) Windows 7
14 13 (2.23%) Fedora
15 12 (2.05%) Windows Server 2003
16 10 (1.71%) Mac OS
17 8 (1.37%) Mac OS X Server
18 4 (0.68%) Mac OS X
18 4 (0.68%) VMS
19 3 (0.51%) Windows Mobile
Processes & Methodologies
1 289 (49.49%) DevOps
2 281 (48.12%) Agile Software Development
3 206 (35.27%) Continuous Integration
4 195 (33.39%) Configuration Management
5 138 (23.63%) Scrum
6 101 (17.29%) Build Automation
7 78 (13.36%) Open Source
8 60 (10.27%) TDD
9 55 (9.42%) Continuous Delivery
10 37 (6.34%) Microservices
11 32 (5.48%) High Availability
11 32 (5.48%) Web Operations
12 27 (4.62%) Migration
13 26 (4.45%) E-Commerce
14 24 (4.11%) API Development
15 21 (3.60%) Software Engineering
16 19 (3.25%) ITIL
16 19 (3.25%) Load Balancing
17 18 (3.08%) BDD
17 18 (3.08%) SDLC
Programming Languages
1 277 (47.43%) Java
2 254 (43.49%) Bash Shell
3 162 (27.74%) Python
4 158 (27.05%) Ruby
5 120 (20.55%) Perl
6 83 (14.21%) PHP
7 75 (12.84%) JavaScript
8 45 (7.71%) SQL
9 32 (5.48%) PowerShell
10 31 (5.31%) Shell Script
11 27 (4.62%) Groovy
12 23 (3.94%) C++
13 14 (2.40%) C
14 10 (1.71%) Korn
14 10 (1.71%) Scala
15 5 (0.86%) C#
16 4 (0.68%) VB
17 3 (0.51%) PL/SQL
18 2 (0.34%) ActionScript
18 2 (0.34%) Objective-C
Qualifications
1 134 (22.95%) Security Cleared
2 114 (19.52%) SC Cleared
3 18 (3.08%) Cisco Certification
4 16 (2.74%) DV Cleared
5 12 (2.05%) CCNP
5 12 (2.05%) RHCT
6 10 (1.71%) CCNA
6 10 (1.71%) Degree
6 10 (1.71%) LPIC
7 8 (1.37%) RHCE
8 6 (1.03%) BPSS Clearance
9 4 (0.68%) MCSE
9 4 (0.68%) Microsoft Certification
10 3 (0.51%) AWS Certification
10 3 (0.51%) CEH
11 2 (0.34%) CCSA
11 2 (0.34%) CCSE
11 2 (0.34%) RHCSA
11 2 (0.34%) VMware Certified Professional (VCP)
12 1 (0.17%) MCDBA
Quality Assurance & Compliance
1 18 (3.08%) QA
2 12 (2.05%) Disclosure Scotland
3 11 (1.88%) PCI DSS
4 8 (1.37%) SLA
System Software
1 176 (30.14%) VMware Infrastructure
2 90 (15.41%) Docker
3 50 (8.56%) Active Directory
4 32 (5.48%) VMware ESXi
5 31 (5.31%) KVM
6 29 (4.97%) vSphere
7 25 (4.28%) vCloud
8 21 (3.60%) NFS
9 11 (1.88%) iptables
9 11 (1.88%) Samba
10 10 (1.71%) QEMU
11 9 (1.54%) Sendmail
11 9 (1.54%) Squid
12 6 (1.03%) Dovecot
12 6 (1.03%) oVirt
12 6 (1.03%) RHEV
12 6 (1.03%) VMware ESX
13 5 (0.86%) FreeRADIUS
13 5 (0.86%) Hyper-V
13 5 (0.86%) Xen
Systems Management
1 307 (52.57%) Puppet
2 101 (17.29%) Opscode Chef
3 99 (16.95%) Ansible
4 96 (16.44%) ZABBIX
5 82 (14.04%) Nagios
6 38 (6.51%) Salt
7 33 (5.65%) logstash
8 26 (4.45%) Graphite
9 22 (3.77%) HAProxy
10 20 (3.42%) Cacti
11 19 (3.25%) Opsview
12 18 (3.08%) Kibana
13 16 (2.74%) CFEngine
14 13 (2.23%) Terraform
15 11 (1.88%) Rundeck
15 11 (1.88%) Zenoss
16 9 (1.54%) Kubernetes
16 9 (1.54%) yum
17 6 (1.03%) Packer
17 6 (1.03%) Riemann
Vendors
1 230 (39.38%) VMware
2 229 (39.21%) Red Hat
3 45 (7.71%) Microsoft
4 39 (6.68%) Cisco
5 33 (5.65%) Atlassian
6 31 (5.31%) IBM
7 27 (4.62%) Google
8 26 (4.45%) Oracle
9 25 (4.28%) HP
10 20 (3.42%) Dell
11 15 (2.57%) Splunk
12 10 (1.71%) Cloudera
12 10 (1.71%) Sonatype
12 10 (1.71%) Twitter
13 7 (1.20%) EMC
13 7 (1.20%) NetApp
13 7 (1.20%) SaltStack
14 6 (1.03%) Black Duck
14 6 (1.03%) Juniper
14 6 (1.03%) Veracode
Guernsey, Channel Isles
Logix Resourcing
Posted: Yesterday
Manchester
Real Staffing
Rate: £400 - £425 per day + competitive
Posted: Yesterday
Dundee
Cathcart Associates
Posted: Yesterday
London
E-synergy Solutions
Rate: £300 - £400 per day
Posted: 2 days ago
London
Senitor Associates
Rate: £260 - £300 per day
Posted: 2 days ago
Birmingham, West Midlands (County)
Senitor Associates
Rate: £200 - £280 per day
Posted: 2 days ago
London
Square One Resources
Rate: Market rates
Posted: 2 days ago
Liverpool, Merseyside
Oscar
Rate: £400 - £450 per day
Posted: 4 days ago
London
Opus Recruitment Solutions Ltd
Rate: Competitive
Posted: 5 days ago
London
Senitor Associates
Rate: £180 - £230 per day
Posted: 6 days ago
Manchester, Lancashire
McGregor Boyall
Rate: £400 - £500 per day
Posted: 6 days ago
London
Vivid Resourcing
Rate: £500 - 600 per day
Posted: 8 days ago
United Kingdom
Vivid Resourcing
Rate: £450 - 475 per day
Posted: 13 days ago
City of London
Computer Futures
Rate: competitive
Posted: 14 days ago
City of London
Computer Futures
Rate: competitive
Posted: 16 days ago
Birmingham
Vivid Resourcing
Rate: £500 - 600 per day
Posted: 19 days ago
City of Westminster
Hays Specialist Recruitment Ltd
Rate: £456.00 per day
Posted: 20 days ago
City of Westminster
Hays Specialist Recruitment Ltd
Rate: £456.00 per day
Posted: 20 days ago
City of London
Computer Futures
Rate: competitive
Posted: 21 days ago
London
Vivid Resourcing
Rate: £Neg
Posted: 27 days ago