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 27 June 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
27 Jun 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 356 413 407
Rank change year-on-year
+57 -6
Contract jobs citing CentOS 317 230 226
As % of all contract IT jobs located in the UK 0.59% 0.42% 0.42%
As % of the Operating Systems category 2.53% 1.88% 1.81%
Number of daily rates quoted 238 142 157
Median daily rate £470 £400 £375
Median daily rate % change year-on-year
+17.50% +6.66%
90% offered a daily rate of more than £312 £245 £180
10% offered a daily rate of more than £562 £504 £500
UK excluding London median daily rate £425 £355 £350
% change year-on-year
+19.71% +1.42%
Number of hourly rates quoted 2 0 4
Median hourly rate £55.00 - £16.75
UK excluding London median hourly rate £55.00 - £16.75

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
12513 12202 12458
As % of all contract IT jobs located in the UK 23.18% 22.13% 23.15%
Number of daily rates quoted 7886 7140 7124
Median daily rate £395 £350 £350
Median daily rate % change year-on-year
+12.85% -
90% offered a daily rate of more than £200 £175 £163
10% offered a daily rate of more than £550 £525 £500
UK excluding London median daily rate £363 £350 £310
% change year-on-year
+3.57% +12.90%
Number of hourly rates quoted 659 953 1032
Median hourly rate £17.00 £17.00 £15.50
Median hourly rate % change year-on-year
- +9.67%
90% offered a hourly rate of more than £11.50 £11.00 £11.00
10% offered a hourly rate of more than £42.00 £40.00 £31.99
UK excluding London median hourly rate £17.50 £16.50 £15.00
% change year-on-year
+6.06% +10.00%

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 27 June 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 27 June 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 +58 310 £465 +20.00% 94
London +70 174 £500 +11.11% 40
South East +34 54 £425 +13.33% 22
Hampshire +34 27 £350 +2.18% 12
Yorkshire -35 24 £450 +50.00% 5
West Yorkshire -20 19 £450 +71.42% 2
Leeds -23 19 £450 +71.42% 2
North West -18 16 £425 - 4
West Midlands - 16 £400 - 3
City of London +32 11 £475 +11.76% 13
North East - 11 £310 - 2
Worcestershire - 10 £400 -
Croydon -15 9 £490 +15.29%
Surrey +3 8 £413 -2.88% 6
Portsmouth -4 8 £288 - 4
Malvern - 8 £400 -
Tyne and Wear - 7 £475 - 1
Newcastle upon Tyne - 7 £475 -
East of England +17 6 £425 - 5
Cheshire -4 6 £419 -1.47%
Berkshire -5 6 £450 +26.76% 3
East Midlands -4 5 £228 -44.10% 8
Manchester -22 5 £500 +127.27% 3
Cambridgeshire +21 4 £475 - 1
Buckinghamshire +18 4 £500 -
South West -9 4 £525 +50.00% 5
Kent - 4 £450 -
Durham - 4 £300 - 1
Wales +21 3 £520 +22.35% 1
Cambridge +17 3 £413 - 1

CentOS
Top 30 Related IT Skills

For the 6 months to 27 June 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.

1 583 (100.00%) Linux
2 315 (54.03%) DevOps
3 309 (53.00%) Red Hat
4 292 (50.09%) Puppet
5 250 (42.88%) Red Hat Enterprise Linux
6 211 (36.19%) Ubuntu
7 199 (34.13%) VMware
8 194 (33.28%) Agile Software Development
9 190 (32.59%) Bash Shell
10 186 (31.90%) Jenkins
11 172 (29.50%) Amazon AWS
11 172 (29.50%) Configuration Management
11 172 (29.50%) Python
12 161 (27.62%) Git (software)
13 158 (27.10%) Java
14 153 (26.24%) Continuous Integration
14 153 (26.24%) Ansible
15 149 (25.56%) Windows
16 148 (25.39%) Apache
17 138 (23.67%) Perl
17 138 (23.67%) Security Cleared
18 132 (22.64%) VMware Infrastructure
19 125 (21.44%) MySQL
20 124 (21.27%) Ruby
21 115 (19.73%) Opscode Chef
22 110 (18.87%) SC Cleared
23 103 (17.67%) Docker
24 97 (16.64%) Tomcat
25 96 (16.47%) PHP
26 93 (15.95%) Unix

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
1 148 (25.39%) Apache
2 97 (16.64%) Tomcat
3 91 (15.61%) OpenStack
4 52 (8.92%) Confluence
5 39 (6.69%) nginx
6 34 (5.83%) JBoss
7 23 (3.95%) Elasticsearch
8 20 (3.43%) IIS
9 13 (2.23%) Jetty
9 13 (2.23%) WebSphere
10 10 (1.72%) Mule ESB
10 10 (1.72%) WebSphere Application Server
11 6 (1.03%) Cloud Foundry
11 6 (1.03%) WebSphere Process Server
12 5 (0.86%) Apache Spark
12 5 (0.86%) SAS
13 3 (0.51%) MediaWiki
13 3 (0.51%) Moodle
13 3 (0.51%) Zimbra
14 2 (0.34%) Drupal
Applications
1 28 (4.80%) MS Excel
2 25 (4.29%) MS Office
3 10 (1.72%) HipChat
3 10 (1.72%) MS Visio
4 1 (0.17%) MS PowerPoint
4 1 (0.17%) MS Project
Business Applications
1 7 (1.20%) SAP Oil and Gas
Cloud Services
1 172 (29.50%) Amazon AWS
2 26 (4.46%) Amazon EC2
3 25 (4.29%) PaaS
4 22 (3.77%) Microsoft Azure
5 21 (3.60%) IaaS
6 20 (3.43%) GitHub
7 18 (3.09%) SaaS
8 16 (2.74%) Google Cloud Platform
9 14 (2.40%) AWS CloudFormation
10 13 (2.23%) Amazon S3
11 8 (1.37%) Amazon ELB
11 8 (1.37%) AWS Elastic Beanstalk
11 8 (1.37%) Route 53
12 6 (1.03%) OpenShift
13 5 (0.86%) Amazon CloudWatch
13 5 (0.86%) Amazon EMR
13 5 (0.86%) CloudFront
13 5 (0.86%) Google Apps
14 4 (0.69%) Rackspace Cloud
15 3 (0.51%) Virtual Private Cloud
Communications & Networking
1 84 (14.41%) DNS
2 77 (13.21%) TCP/IP
3 57 (9.78%) Firewall
4 42 (7.20%) VPN
5 40 (6.86%) SAN
6 31 (5.32%) DHCP
7 26 (4.46%) LDAP
8 23 (3.95%) HTTP
9 22 (3.77%) Internet
10 19 (3.26%) Cisco Nexus
10 19 (3.26%) iSCSI
10 19 (3.26%) SMTP
11 17 (2.92%) FTP
12 16 (2.74%) Fibre Channel
13 14 (2.40%) Network Security
13 14 (2.40%) SSL
14 12 (2.06%) IPsec
14 12 (2.06%) LAN
14 12 (2.06%) WAN
15 11 (1.89%) DMZ
Database & Business Intelligence
1 125 (21.44%) MySQL
2 70 (12.01%) MongoDB
3 66 (11.32%) PostgreSQL
4 52 (8.92%) NoSQL
5 31 (5.32%) SQL Server
6 25 (4.29%) Hadoop
7 22 (3.77%) Big Data
7 22 (3.77%) Relational Database
8 20 (3.43%) Redis
9 15 (2.57%) Apache Cassandra
10 10 (1.72%) HBase
11 9 (1.54%) MariaDB
12 7 (1.20%) Amazon RDS
12 7 (1.20%) SQL Server 2008
13 6 (1.03%) CouchDB
13 6 (1.03%) Oracle Database
14 5 (0.86%) Couchbase
14 5 (0.86%) SQL Server 2014
15 4 (0.69%) Amazon DynamoDB
15 4 (0.69%) Apache Hive
Development Applications
1 186 (31.90%) Jenkins
2 161 (27.62%) Git (software)
3 69 (11.84%) JIRA
4 67 (11.49%) Maven
5 43 (7.38%) Subversion
6 27 (4.63%) Sonatype Nexus
7 22 (3.77%) Vagrant
8 21 (3.60%) SonarQube
9 20 (3.43%) Hudson
10 19 (3.26%) Gradle
11 18 (3.09%) Atlassian Bamboo
12 16 (2.74%) Ant
13 14 (2.40%) Artifactory
13 14 (2.40%) Cucumber
13 14 (2.40%) TeamCity
14 13 (2.23%) Selenium
15 12 (2.06%) Gerrit
15 12 (2.06%) Mercurial
16 10 (1.72%) Mocha
17 9 (1.54%) Appium
General
1 44 (7.55%) Finance
2 20 (3.43%) Games
3 16 (2.74%) Retail
4 11 (1.89%) Telecoms
5 9 (1.54%) Marketing
6 8 (1.37%) Manufacturing
7 7 (1.20%) Electronics
8 6 (1.03%) Back Office
9 4 (0.69%) Banking
9 4 (0.69%) Publishing
10 3 (0.51%) Pharmaceutical
11 2 (0.34%) Spanish Language
12 1 (0.17%) Financial Institution
Job Titles
1 208 (35.68%) DevOps Engineer
2 158 (27.10%) Linux Engineer
3 96 (16.47%) Linux/Unix DevOps
4 75 (12.86%) Linux DevOps Engineer
5 69 (11.84%) Administrator
6 49 (8.40%) Linux Administrator
7 47 (8.06%) Systems Administrator
8 46 (7.89%) AWS DevOps
9 42 (7.20%) AWS Engineer
10 37 (6.35%) Senior Linux Engineer
11 35 (6.00%) Linux Systems Administrator
12 34 (5.83%) Senior DevOps
13 32 (5.49%) Developer
14 30 (5.15%) Systems Engineer
15 29 (4.97%) Consultant
15 29 (4.97%) Senior DevOps Engineer
16 26 (4.46%) Infrastructure Engineer
17 23 (3.95%) Linux Systems Engineer
18 21 (3.60%) Cloud Engineer
19 20 (3.43%) Operations Engineer
Libraries, Frameworks & Software Standards
1 77 (13.21%) LAMP
2 53 (9.09%) Web Services
3 30 (5.15%) ELK Stack
4 28 (4.80%) LAPP Stack
5 22 (3.77%) RabbitMQ
6 21 (3.60%) REST
7 20 (3.43%) RESTful
8 19 (3.26%) XML
9 18 (3.09%) LEMP Stack
10 17 (2.92%) J2EE
10 17 (2.92%) MCollective
11 15 (2.57%) jQuery
12 14 (2.40%) HTML
12 14 (2.40%) Node.js
12 14 (2.40%) SOAP
13 11 (1.89%) Apache Camel
13 11 (1.89%) JSON
14 10 (1.72%) ActiveMQ
15 9 (1.54%) HTML5
15 9 (1.54%) Spring
Miscellaneous
1 35 (6.00%) Data Centre
2 29 (4.97%) Public Cloud
3 25 (4.29%) Private Cloud
4 17 (2.92%) Wiki
5 14 (2.40%) Enterprise Cloud
5 14 (2.40%) Mobile App
6 13 (2.23%) Clustering
6 13 (2.23%) Management Information System
7 10 (1.72%) PlayStation
8 9 (1.54%) Digital Media
8 9 (1.54%) Enterprise Software
9 8 (1.37%) Derivative
10 7 (1.20%) EMC VNX
11 6 (1.03%) Analytical Skills
11 6 (1.03%) Computer Science
11 6 (1.03%) NHS
11 6 (1.03%) Virtual Team
11 6 (1.03%) Visualisation
12 5 (0.86%) Device Driver
12 5 (0.86%) Replication
Operating Systems
1 583 (100.00%) Linux
2 250 (42.88%) Red Hat Enterprise Linux
3 211 (36.19%) Ubuntu
4 149 (25.56%) Windows
5 93 (15.95%) Unix
6 43 (7.38%) Fedora
7 42 (7.20%) Windows Server
8 38 (6.52%) Debian
9 35 (6.00%) Solaris
10 32 (5.49%) Windows Server 2008
11 29 (4.97%) Windows Server 2012
12 22 (3.77%) Windows Server 2003
13 15 (2.57%) AIX
13 15 (2.57%) Mac OS X
14 13 (2.23%) SUSE
15 8 (1.37%) CoreOS
16 7 (1.20%) Mac OS
17 6 (1.03%) Windows 7
18 5 (0.86%) Android
18 5 (0.86%) Mac OS X Server
Processes & Methodologies
1 315 (54.03%) DevOps
2 194 (33.28%) Agile Software Development
3 172 (29.50%) Configuration Management
4 153 (26.24%) Continuous Integration
5 80 (13.72%) Open Source
6 75 (12.86%) Scrum
7 54 (9.26%) ITIL
8 49 (8.40%) Continuous Delivery
9 37 (6.35%) High Availability
10 35 (6.00%) Build Automation
11 34 (5.83%) Load Balancing
12 29 (4.97%) Service Management
13 28 (4.80%) SDLC
14 27 (4.63%) E-Commerce
15 26 (4.46%) SOA
16 24 (4.12%) Migration
16 24 (4.12%) Software Engineering
17 22 (3.77%) Release Management
17 22 (3.77%) TDD
18 21 (3.60%) Service Delivery
Programming Languages
1 190 (32.59%) Bash Shell
2 172 (29.50%) Python
3 158 (27.10%) Java
4 138 (23.67%) Perl
5 124 (21.27%) Ruby
6 96 (16.47%) PHP
7 56 (9.61%) SQL
8 38 (6.52%) JavaScript
9 35 (6.00%) Shell Script
10 29 (4.97%) PowerShell
11 17 (2.92%) C
12 14 (2.40%) C++
13 9 (1.54%) Korn
14 8 (1.37%) AWK
15 7 (1.20%) Groovy
15 7 (1.20%) sed
16 6 (1.03%) C#
17 4 (0.69%) Scala
18 3 (0.51%) Go
19 2 (0.34%) PL/SQL
Qualifications
1 138 (23.67%) Security Cleared
2 110 (18.87%) SC Cleared
3 27 (4.63%) Degree
4 24 (4.12%) Cisco Certification
5 22 (3.77%) RHCE
6 18 (3.09%) CCNA
7 17 (2.92%) BPSS Clearance
8 15 (2.57%) CCNP
9 9 (1.54%) DV Cleared
9 9 (1.54%) Microsoft Certification
10 7 (1.20%) MCSE
10 7 (1.20%) VMware Certified Professional (VCP)
11 5 (0.86%) AWS Certification
12 4 (0.69%) VCP5
13 3 (0.51%) MCTS
14 2 (0.34%) BC Cleared
14 2 (0.34%) CCDA
14 2 (0.34%) CEH
14 2 (0.34%) RHCA
14 2 (0.34%) RHCT
Quality Assurance & Compliance
1 16 (2.74%) Disclosure Scotland
1 16 (2.74%) QA
2 11 (1.89%) ISO/IEC 27001
3 7 (1.20%) SLA
4 3 (0.51%) PCI DSS
5 1 (0.17%) HMG Security Policy Framework
System Software
1 132 (22.64%) VMware Infrastructure
2 103 (17.67%) Docker
3 63 (10.81%) Active Directory
4 53 (9.09%) vSphere
5 44 (7.55%) Virtual Machines
6 38 (6.52%) KVM
7 35 (6.00%) vCloud
8 28 (4.80%) Samba
8 28 (4.80%) VMware ESXi
9 23 (3.95%) Hyper-V
10 21 (3.60%) iptables
11 20 (3.43%) NFS
12 11 (1.89%) Squid
13 10 (1.72%) Postfix
14 9 (1.54%) VMware Server
15 8 (1.37%) Dovecot
15 8 (1.37%) Sendmail
15 8 (1.37%) XenServer
16 7 (1.20%) SpamAssassin
16 7 (1.20%) VirtualBox
Systems Management
1 292 (50.09%) Puppet
2 153 (26.24%) Ansible
3 115 (19.73%) Opscode Chef
4 83 (14.24%) Nagios
5 45 (7.72%) ZABBIX
6 42 (7.20%) Salt
7 35 (6.00%) HAProxy
7 35 (6.00%) Kubernetes
8 29 (4.97%) logstash
9 26 (4.46%) Terraform
10 24 (4.12%) Kibana
11 16 (2.74%) Cacti
12 14 (2.40%) Rundeck
13 13 (2.23%) Packer
13 13 (2.23%) SCCM
13 13 (2.23%) Zenoss
14 12 (2.06%) Graphite
15 11 (1.89%) OVSD
16 10 (1.72%) SCOM
16 10 (1.72%) Xymon
Vendors
1 309 (53.00%) Red Hat
2 199 (34.13%) VMware
3 76 (13.04%) Microsoft
4 49 (8.40%) Cisco
4 49 (8.40%) Oracle
5 33 (5.66%) Atlassian
6 28 (4.80%) EMC
7 27 (4.63%) HP
8 26 (4.46%) NetApp
9 21 (3.60%) Google
10 18 (3.09%) Dell
10 18 (3.09%) Splunk
11 15 (2.57%) Citrix
12 13 (2.23%) New Relic
13 12 (2.06%) IBM
13 12 (2.06%) Sonatype
14 11 (1.89%) Apple
14 11 (1.89%) Black Duck
14 11 (1.89%) Veracode
15 10 (1.72%) Juniper
Birmingham, West Midlands (County)
Lawrence Harvey Enterprise
Rate: £450 - £500 per day
Posted: 3 hours ago
London
Austin Fraser
Rate: £400 - £450 per day + Negotiable
Posted: 3 days ago
Central London / West End
Digitech Resourcing Ltd
Rate: Up to £525 per day
Posted: 4 days ago
East London
Careerwise UK Limited
Rate: £500 - £550 per day
Posted: 4 days ago
London
Careerwise UK Limited
Rate: £600 - £650 per day
Posted: 4 days ago
Leeds, West Yorkshire
Experis Ltd
Rate: £400.00 - £440.00 per day
Posted: 2 days ago
Watford, Hertfordshire
Energon People
Rate: £350 - £400 per day
Posted: 4 days ago
Woking, Surrey
Venturi
Rate: £400 - £500 per day
Posted: 5 days ago
Portsmouth, Hampshire
AAP3
Rate: £275 - £300 per day
Posted: 3 days ago
Durham, County Durham
Experis Ltd
Rate: £250.00 - £350.00 per day
Posted: 6 days ago
Hemel Hempstead, Hertfordshire
Understanding Recruitment
Rate: £350 - £400 per day
Posted: 5 days ago
London
Salt
Rate: £350 - £400 per day
Posted: 6 days ago
Egham, Surrey
Parham Consulting
Rate: Up to £400 per day Maximum £400 per day
Posted: 6 days ago
Norfolk
Marcus Donald People
Rate: £130 - £160 per day
Posted: 5 days ago
North West England
Amoria Bond
Rate: £0.00 per annum
Posted: 26 days ago