The table below looks at the statistics for CentOS skills in IT contracts advertised across the UK. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 5 May 2016 with a comparison to the same period over 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.

3 months to
5 May 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 384 395 472
Rank change year-on-year
+11 +77
Contract jobs citing CentOS 287 257 146
As % of all contract IT jobs located in the UK 0.52% 0.46% 0.27%
As % of the Operating Systems category 2.29% 2.08% 1.20%
Number of daily rates quoted 208 179 86
Median daily rate £450 £388 £400
Median daily rate % change year-on-year
+16.12% -3.12%
90% offered a daily rate of more than £300 £224 £298
10% offered a daily rate of more than £560 £500 £525
UK excluding London median daily rate £425 £375 £381
% change year-on-year
+13.33% -1.63%
Number of hourly rates quoted 1 0 2
Median hourly rate £8.50 - £35.00
UK excluding London median hourly rate £8.50 - £35.00

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
12523 12346 12120
As % of all contract IT jobs located in the UK 22.55% 22.13% 22.25%
Number of daily rates quoted 7833 7043 6820
Median daily rate £388 £353 £350
Median daily rate % change year-on-year
+9.77% +0.85%
90% offered a daily rate of more than £200 £170 £160
10% offered a daily rate of more than £535 £525 £500
UK excluding London median daily rate £363 £343 £315
% change year-on-year
+5.83% +8.73%
Number of hourly rates quoted 682 1011 1054
Median hourly rate £17.00 £16.50 £16.50
Median hourly rate % change year-on-year
+3.03% -
90% offered a hourly rate of more than £11.50 £11.00 £11.00
10% offered a hourly rate of more than £43.00 £39.25 £35.00
UK excluding London median hourly rate £17.00 £16.00 £16.00
% change year-on-year
+6.25% -

CentOS
Jobs Demand Trend

The demand trend of contract jobs citing CentOS as a proportion of all IT contracts with a match in 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 5 May 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 median contractor rates quoted in IT jobs citing CentOS within the UK over the 3 months to 5 May 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
(Click see detailed
statistics and trends)
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 -1 275 £450 +16.50% 99
London +68 163 £500 +11.11% 43
South East 0 54 £425 +13.33% 22
Hampshire +6 18 £325 -4.41% 6
North West -18 13 £344 -14.06% 7
South West -23 12 £438 +16.66% 2
West Midlands - 12 £400 - 8
City of London +39 11 £425 +17.24% 5
Berkshire +5 11 £475 +35.71% 7
Buckinghamshire +16 10 £428 +6.21% 1
Yorkshire -34 10 £475 +111.11% 9
Wiltshire +11 9 £488 +14.70%
Milton Keynes +10 9 £425 +3.65%
Surrey +2 9 £401 - 4
Croydon -3 9 £506 +14.08% 1
Reading +3 7 £423 +36.29% 6
Cheshire -13 7 £344 -19.11%
Worcestershire - 7 £400 - 1
West Yorkshire -24 6 £425 +88.88% 8
Salisbury - 6 £488 -
East Midlands +9 5 £240 -46.66% 5
Manchester -18 5 £300 +36.36% 6
Malvern - 5 £400 - 1
Macclesfield - 5 £444 -
East of England +8 4 £375 - 2
South Yorkshire -21 4 £475 +18.75% 1
Guildford - 4 £401 - 1
Kent - 4 £450 -
Scotland - 4 £300 - 5
Winchester +2 3 £500 +17.64%

CentOS
Top 30 Related IT Skills

For the 6 months to 5 May 2016, IT contractor jobs citing CentOS 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 CentOS.

1 520 (89.66%) Linux
2 306 (52.76%) DevOps
3 284 (48.97%) Puppet
4 268 (46.21%) Red Hat Enterprise Linux
5 256 (44.14%) Red Hat
6 243 (41.90%) Agile Software Development
7 228 (39.31%) Ubuntu
8 225 (38.79%) Java
9 215 (37.07%) Bash Shell
10 205 (35.34%) VMware
11 202 (34.83%) Jenkins
12 189 (32.59%) Configuration Management
13 184 (31.72%) Git (software)
14 166 (28.62%) Amazon AWS
15 163 (28.10%) Continuous Integration
16 160 (27.59%) Python
17 152 (26.21%) VMware Infrastructure
18 139 (23.97%) Ruby
18 139 (23.97%) Windows
19 136 (23.45%) Apache
20 128 (22.07%) Security Cleared
21 119 (20.52%) Tomcat
22 116 (20.00%) Perl
22 116 (20.00%) Maven
23 113 (19.48%) SC Cleared
24 110 (18.97%) Ansible
25 109 (18.79%) Scrum
26 102 (17.59%) MySQL
26 102 (17.59%) Unix
27 94 (16.21%) Opscode Chef

CentOS
Top Related 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
1 136 (23.45%) Apache
2 119 (20.52%) Tomcat
3 84 (14.48%) OpenStack
4 63 (10.86%) Confluence
5 54 (9.31%) nginx
6 37 (6.38%) JBoss
7 32 (5.52%) Elasticsearch
8 25 (4.31%) IIS
9 22 (3.79%) WebSphere
10 15 (2.59%) Jetty
11 14 (2.41%) WebSphere Application Server
12 13 (2.24%) Node.js
13 11 (1.90%) Apache Spark
14 9 (1.55%) WebSphere Process Server
15 8 (1.38%) SAS
16 7 (1.21%) Mule ESB
17 6 (1.03%) Exchange Server 2010
17 6 (1.03%) MS Exchange
17 6 (1.03%) WebLogic
18 4 (0.69%) Alfresco
Applications
1 25 (4.31%) MS Excel
2 22 (3.79%) MS Office
3 14 (2.41%) HipChat
4 7 (1.21%) MS Visio
5 3 (0.52%) MS PowerPoint
6 2 (0.34%) 3ds Max
6 2 (0.34%) Acrobat
6 2 (0.34%) Adobe Illustrator
6 2 (0.34%) GIMP
6 2 (0.34%) Photoshop
7 1 (0.17%) MS Project
Business Applications
1 8 (1.38%) SAP Oil and Gas
2 2 (0.34%) Magento
Cloud Services
1 166 (28.62%) Amazon AWS
2 30 (5.17%) Amazon EC2
3 20 (3.45%) GitHub
4 18 (3.10%) Google Cloud Platform
4 18 (3.10%) Microsoft Azure
5 17 (2.93%) SaaS
6 15 (2.59%) IaaS
7 14 (2.41%) AWS CloudFormation
8 12 (2.07%) Amazon S3
9 8 (1.38%) Amazon ELB
9 8 (1.38%) PaaS
10 6 (1.03%) AWS Elastic Beanstalk
10 6 (1.03%) OpenShift
10 6 (1.03%) Route 53
11 5 (0.86%) Amazon CloudWatch
12 4 (0.69%) CloudFront
13 3 (0.52%) Amazon EMR
13 3 (0.52%) Rackspace Cloud
14 2 (0.34%) Amazon Kinesis
14 2 (0.34%) Virtual Private Cloud
Communications & Networking
1 67 (11.55%) TCP/IP
2 63 (10.86%) DNS
3 52 (8.97%) Firewall
4 39 (6.72%) VPN
5 28 (4.83%) SAN
6 24 (4.14%) HTTP
7 22 (3.79%) SMTP
8 21 (3.62%) LDAP
9 20 (3.45%) FTP
10 19 (3.28%) iSCSI
11 17 (2.93%) DHCP
11 17 (2.93%) Fibre Channel
12 16 (2.76%) LAN
13 15 (2.59%) Network Security
14 14 (2.41%) Cisco Nexus
14 14 (2.41%) Internet
14 14 (2.41%) SSL
15 13 (2.24%) SSH
15 13 (2.24%) WAN
16 12 (2.07%) IMAP
Database & Business Intelligence
1 102 (17.59%) MySQL
2 83 (14.31%) MongoDB
3 79 (13.62%) PostgreSQL
4 52 (8.97%) NoSQL
5 29 (5.00%) Hadoop
5 29 (5.00%) Relational Database
5 29 (5.00%) SQL Server
6 24 (4.14%) Big Data
7 18 (3.10%) Apache Cassandra
8 15 (2.59%) HBase
8 15 (2.59%) Redis
9 12 (2.07%) CouchDB
10 10 (1.72%) Apache Hive
11 9 (1.55%) MariaDB
12 7 (1.21%) Amazon RDS
12 7 (1.21%) Couchbase
12 7 (1.21%) SQL Server 2008
13 6 (1.03%) Amazon DynamoDB
14 5 (0.86%) SQL Server 2014
15 4 (0.69%) Oracle Database
Development Applications
1 202 (34.83%) Jenkins
2 184 (31.72%) Git (software)
3 116 (20.00%) Maven
4 78 (13.45%) JIRA
5 39 (6.72%) Subversion
6 28 (4.83%) Artifactory
7 25 (4.31%) SonarQube
8 23 (3.97%) GitLab
8 23 (3.97%) Vagrant
9 21 (3.62%) Selenium
10 20 (3.45%) Atlassian Bamboo
10 20 (3.45%) Cucumber
10 20 (3.45%) Mocha
11 19 (3.28%) Gradle
12 18 (3.10%) Hudson
13 16 (2.76%) Appium
13 16 (2.76%) Sonatype Nexus
14 14 (2.41%) Ant
15 13 (2.24%) IntelliJ
16 12 (2.07%) Geb
General
1 41 (7.07%) Finance
2 22 (3.79%) Games
3 14 (2.41%) Telecoms
4 11 (1.90%) Marketing
4 11 (1.90%) Retail
5 9 (1.55%) Manufacturing
6 8 (1.38%) Electronics
7 5 (0.86%) Banking
8 4 (0.69%) Local Government
9 3 (0.52%) Advertising
9 3 (0.52%) Pharmaceutical
9 3 (0.52%) Spanish Language
10 1 (0.17%) Back Office
10 1 (0.17%) Financial Institution
10 1 (0.17%) Publishing
Job Titles
1 217 (37.41%) DevOps Engineer
2 150 (25.86%) Linux Engineer
3 86 (14.83%) Linux/Unix DevOps
4 73 (12.59%) Linux DevOps Engineer
5 59 (10.17%) Developer
6 55 (9.48%) Administrator
7 42 (7.24%) Operations Engineer
8 39 (6.72%) Systems Administrator
9 38 (6.55%) Linux Administrator
10 36 (6.21%) Senior Linux Engineer
11 30 (5.17%) Systems Engineer
12 29 (5.00%) Linux Systems Administrator
13 28 (4.83%) AWS Engineer
13 28 (4.83%) Infrastructure Engineer
14 27 (4.66%) Automation Engineer
14 27 (4.66%) Consultant
14 27 (4.66%) Senior DevOps Engineer
15 25 (4.31%) Linux Systems Engineer
16 22 (3.79%) Architect
16 22 (3.79%) Cloud Engineer
Libraries, Frameworks & Software Standards
1 71 (12.24%) Web Services
2 67 (11.55%) LAMP
3 43 (7.41%) MCollective
4 40 (6.90%) RESTful
5 37 (6.38%) ELK Stack
6 29 (5.00%) LAPP Stack
7 21 (3.62%) RabbitMQ
8 20 (3.45%) jQuery
8 20 (3.45%) Sensu
9 19 (3.28%) J2EE
10 18 (3.10%) HTML
11 17 (2.93%) CSS
11 17 (2.93%) Kafka
11 17 (2.93%) LEMP Stack
12 16 (2.76%) Spring
13 14 (2.41%) .NET
13 14 (2.41%) Apache Camel
13 14 (2.41%) SOAP
14 13 (2.24%) AngularJS
14 13 (2.24%) Spring Boot
Miscellaneous
1 26 (4.48%) Data Centre
2 24 (4.14%) Private Cloud
3 15 (2.59%) Management Information System
4 13 (2.24%) Wiki
5 11 (1.90%) Mobile App
5 11 (1.90%) User Experience
6 10 (1.72%) PlayStation
7 9 (1.55%) Analytical Skills
7 9 (1.55%) Digital Media
8 8 (1.38%) Algorithms
9 7 (1.21%) Data Structures
9 7 (1.21%) Derivative
9 7 (1.21%) Enterprise Software
9 7 (1.21%) Public Cloud
10 5 (0.86%) Clustering
10 5 (0.86%) Mainframe
10 5 (0.86%) Statistics
11 4 (0.69%) Blog
11 4 (0.69%) PKI
12 3 (0.52%) Replication
Operating Systems
1 520 (89.66%) Linux
2 268 (46.21%) Red Hat Enterprise Linux
3 228 (39.31%) Ubuntu
4 139 (23.97%) Windows
5 102 (17.59%) Unix
6 44 (7.59%) Debian
7 37 (6.38%) Windows Server
8 35 (6.03%) Solaris
8 35 (6.03%) Windows Server 2008
9 32 (5.52%) Windows Server 2012
10 28 (4.83%) AIX
11 26 (4.48%) Fedora
12 25 (4.31%) SUSE
13 19 (3.28%) Windows Server 2003
14 12 (2.07%) Mac OS X
15 11 (1.90%) Windows 7
16 7 (1.21%) Mac OS
17 5 (0.86%) Windows Mobile
18 4 (0.69%) Windows 8
19 3 (0.52%) VMS
Processes & Methodologies
1 306 (52.76%) DevOps
2 243 (41.90%) Agile Software Development
3 189 (32.59%) Configuration Management
4 163 (28.10%) Continuous Integration
5 109 (18.79%) Scrum
6 69 (11.90%) Build Automation
7 64 (11.03%) Open Source
8 51 (8.79%) Continuous Delivery
9 31 (5.34%) ITIL
10 30 (5.17%) E-Commerce
10 30 (5.17%) TDD
11 25 (4.31%) High Availability
11 25 (4.31%) Load Balancing
12 23 (3.97%) Microservices
12 23 (3.97%) SDLC
13 20 (3.45%) Service Delivery
14 18 (3.10%) Migration
14 18 (3.10%) Service Management
15 17 (2.93%) Kanban
16 16 (2.76%) Continuous Improvement
Programming Languages
1 225 (38.79%) Java
2 215 (37.07%) Bash Shell
3 160 (27.59%) Python
4 139 (23.97%) Ruby
5 116 (20.00%) Perl
6 78 (13.45%) PHP
7 54 (9.31%) SQL
8 47 (8.10%) JavaScript
9 38 (6.55%) Shell Script
10 27 (4.66%) PowerShell
11 15 (2.59%) Groovy
12 14 (2.41%) C
13 12 (2.07%) Korn
14 11 (1.90%) C++
15 10 (1.72%) Scala
16 9 (1.55%) C#
17 7 (1.21%) AWK
18 6 (1.03%) sed
19 3 (0.52%) Go
19 3 (0.52%) VB
Qualifications
1 128 (22.07%) Security Cleared
2 113 (19.48%) SC Cleared
3 22 (3.79%) Cisco Certification
4 19 (3.28%) RHCE
5 17 (2.93%) CCNA
6 16 (2.76%) CCNP
7 13 (2.24%) Degree
8 12 (2.07%) DV Cleared
9 10 (1.72%) MCSE
9 10 (1.72%) Microsoft Certification
10 6 (1.03%) VMware Certified Professional (VCP)
11 4 (0.69%) BPSS Clearance
12 3 (0.52%) AWS Certification
12 3 (0.52%) CCSA
12 3 (0.52%) CCSE
12 3 (0.52%) MCTS
12 3 (0.52%) VCP5
13 2 (0.34%) CCDA
13 2 (0.34%) CEH
13 2 (0.34%) RHCT
Quality Assurance & Compliance
1 18 (3.10%) QA
2 10 (1.72%) SLA
3 7 (1.21%) Disclosure Scotland
3 7 (1.21%) ISO/IEC 27001
3 7 (1.21%) PCI DSS
System Software
1 152 (26.21%) VMware Infrastructure
2 76 (13.10%) Docker
3 54 (9.31%) Active Directory
4 51 (8.79%) vSphere
5 35 (6.03%) KVM
6 25 (4.31%) vCloud
7 23 (3.97%) VMware ESXi
8 22 (3.79%) Samba
9 16 (2.76%) NFS
10 14 (2.41%) iptables
11 13 (2.24%) Hyper-V
12 10 (1.72%) Sendmail
12 10 (1.72%) Squid
13 9 (1.55%) Dovecot
13 9 (1.55%) Postfix
14 7 (1.21%) SpamAssassin
15 6 (1.03%) StorNext
16 5 (0.86%) Xen
16 5 (0.86%) XenServer
17 4 (0.69%) oVirt
Systems Management
1 284 (48.97%) Puppet
2 110 (18.97%) Ansible
3 94 (16.21%) Opscode Chef
4 79 (13.62%) Nagios
5 65 (11.21%) ZABBIX
6 30 (5.17%) logstash
7 28 (4.83%) HAProxy
8 27 (4.66%) Salt
9 23 (3.97%) Graphite
10 21 (3.62%) Cacti
11 18 (3.10%) Terraform
12 17 (2.93%) Kibana
12 17 (2.93%) Opsview
13 14 (2.41%) Packer
14 11 (1.90%) Zenoss
15 10 (1.72%) Xymon
16 9 (1.55%) CFEngine
16 9 (1.55%) Kubernetes
17 8 (1.38%) OpenNebula
17 8 (1.38%) Rundeck
Vendors
1 256 (44.14%) Red Hat
2 205 (35.34%) VMware
3 65 (11.21%) Microsoft
4 52 (8.97%) Cisco
5 45 (7.76%) Atlassian
6 43 (7.41%) Oracle
7 28 (4.83%) HP
8 20 (3.45%) EMC
8 20 (3.45%) NetApp
9 18 (3.10%) Google
9 18 (3.10%) IBM
10 17 (2.93%) Dell
11 16 (2.76%) Splunk
12 10 (1.72%) Cloudera
12 10 (1.72%) New Relic
13 9 (1.55%) Juniper
13 9 (1.55%) Sonatype
13 9 (1.55%) Zend
14 8 (1.38%) Black Duck
14 8 (1.38%) SAP
London
Montash
Rate: £500 - £650 per day + Negotiable
Posted: 13 hours ago
London
Digitech Resourcing Ltd
Rate: From £500 to £620 per day
Posted: 13 hours ago
Nottingham, Nottinghamshire
Opus Recruitment Solutions Ltd
Rate: £250 - £300 per day
Posted: 15 hours ago
Leeds, West Yorkshire
Digitech Resourcing Ltd
Rate: From £450 to £565 per day upto £565
Posted: 22 hours ago
Leamington Spa, Warwickshire
Senitor Associates
Rate: £300 - £400 per day
Posted: Yesterday
Leeds, West Yorkshire
Digitech Resourcing Ltd
Rate: Up to £565 per day
Posted: Yesterday
West London
Digitech Resourcing Ltd
Rate: Up to £600 per day
Posted: 2 days ago
Surrey
Computer People
Rate: £400.00 - £450.00 per day
Posted: 2 days ago
London
Connectus
Rate: £500 per day
Posted: 2 days ago
London
ClearCube Consulting
Rate: Up to £550 per annum
Posted: 2 days ago
London
Real Staffing
Rate: £375 - £500 per day
Posted: 2 days ago
London
Marcus Donald People
Rate: £350 - £450 per day
Posted: 6 days ago
Farnborough, Hampshire
Experis Ltd
Posted: 6 days ago
Cheltenham, Gloucestershire
LA International
Rate: £500 - £550 per day + Negotiable
Posted: 6 days ago
Fleet Street & Croydon
InfoURGE Technologies
Rate: Market Rate
Posted: 7 days ago
Fleet Street & Croydon
InfoURGE Technologies
Rate: Market Rate
Posted: 7 days ago
Manchester
G2 Recruitment
Rate: £200 - 250 per day
Posted: 8 days ago
Portsmouth
aap3
Rate: £275 - £300 per day
Posted: 9 days ago
London
G2 Recruitment
Rate: £450 - 600 per day
Posted: 15 days ago
London
Computer Futures
Rate: competitive
Posted: 18 days ago
London
People Source Consulting
Rate: £450 - £650 per day
Posted: 20 days ago
London
Computer Futures
Rate: competitive
Posted: 22 days ago