The table below looks at the statistics for CentOS skills in IT contracts advertised for the London region. Included is a guide to the average contractor rates offered in IT contracts that have cited CentOS over the 3 months to 29 May 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
29 May 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 309 356 352
Rank change year-on-year
+47 -4
Contract jobs citing CentOS 93 49 48
As % of all contract IT jobs located in London 0.42% 0.22% 0.22%
As % of the Operating Systems category 1.98% 0.97% 1.07%
Number of daily rates quoted 59 38 32
Average daily rate
Keep up to 90%
of your Daily Rate
Get a Free Illustration
£450 £400 £360
Average daily rate % change year-on-year
+12.50% +11.11%
90% offered a daily rate of more than £325 £295 £143
10% offered a daily rate of more than £538 £525 £425
UK excluding London average daily rate £375 £350 £300
% change year-on-year
+7.14% +16.66%
Number of hourly rates quoted 0 0 2
Average hourly rate - - £48.25
UK excluding London average hourly rate - £16.75 £33.25
% change year-on-year
- -49.62%
CentOS
England

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

Operating Systems Category
London
Contract IT job ads with a match in the
Operating Systems category
4707 5035 4485
As % of all contract IT jobs located in London 21.46% 22.10% 20.28%
Number of daily rates quoted 3130 3425 2937
Average daily rate £400 £400 £400
90% offered a daily rate of more than £200 £190 £225
10% offered a daily rate of more than £575 £550 £550
UK excluding London average daily rate £348 £313 £325
% change year-on-year
+11.36% -3.84%
Number of hourly rates quoted 195 237 234
Average hourly rate £18.23 £17.00 £20.00
Average hourly rate % change year-on-year
+7.23% -15.00%
90% offered a hourly rate of more than £13.06 £12.00 £13.65
10% offered a hourly rate of more than £40.00 £27.50 £135.00
UK excluding London average hourly rate £16.00 £15.50 £16.20
% change year-on-year
+3.22% -4.32%

CentOS
Jobs Demand Trend in London

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

CentOS Jobs Demand Trend in London

CentOS
Daily Rate Trend in London

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

CentOS Daily Rate Trend in London

CentOS
Daily Rate Histogram in London

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the London region over the 3 months to 29 May 2015.

CentOS Daily Rate Histogram in London

CentOS
Hourly Rate Trend in London

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

CentOS Hourly Rate Trend in London

CentOS
Contract Job Locations in London

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing CentOS within the London region over the 3 months to 29 May 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
City of London +18 12 £438 +34.61% 15
Croydon - 8 £438 -
Isleworth - 1 £375 - 2
Ealing - 1 £425 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 29 May 2015, IT contractor jobs across the London region 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.

1 183 (91.96%) Linux
2 133 (66.83%) Puppet
3 120 (60.30%) DevOps
4 107 (53.77%) Jenkins
4 107 (53.77%) Red Hat
4 107 (53.77%) Ubuntu
5 101 (50.75%) Bash Shell
6 96 (48.24%) Agile Software Development
7 95 (47.74%) Continuous Integration
8 88 (44.22%) Git (software)
9 87 (43.72%) Python
10 79 (39.70%) Ruby
11 78 (39.20%) Opscode Chef
12 77 (38.69%) VMware
12 77 (38.69%) Java
13 74 (37.19%) MySQL
14 73 (36.68%) Perl
15 66 (33.17%) Amazon AWS
15 66 (33.17%) MongoDB
16 64 (32.16%) Apache
17 61 (30.65%) Red Hat Enterprise Linux
18 57 (28.64%) ZABBIX
18 57 (28.64%) Ansible
18 57 (28.64%) Maven
19 52 (26.13%) Web Services
20 50 (25.13%) Scrum
21 47 (23.62%) PHP
21 47 (23.62%) Security Cleared
22 45 (22.61%) NoSQL
22 45 (22.61%) Configuration Management

CentOS
Top Related IT Skills in London by Category

For the 6 months to 29 May 2015, IT contractor jobs across the London region 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 64 (32.16%) Apache
2 30 (15.08%) nginx
3 29 (14.57%) OpenStack
4 28 (14.07%) Node.js
4 28 (14.07%) Confluence
4 28 (14.07%) JBoss
5 24 (12.06%) Tomcat
6 19 (9.55%) IIS
7 15 (7.54%) Mule ESB
8 14 (7.04%) Elasticsearch
9 10 (5.03%) WildFly
9 10 (5.03%) Alfresco
10 7 (3.52%) Cloud Foundry
11 5 (2.51%) Mule
11 5 (2.51%) Jetty
11 5 (2.51%) MediaWiki
11 5 (2.51%) WebLogic
11 5 (2.51%) GlassFish
12 4 (2.01%) iPlanet
12 4 (2.01%) Apache Qpid
Applications
1 9 (4.52%) MS Excel
2 1 (0.50%) Photoshop
Business Applications
1 4 (2.01%) Oracle BPM
2 1 (0.50%) Oracle EBS
2 1 (0.50%) Hyperion Enterprise
2 1 (0.50%) Oracle Applications
2 1 (0.50%) ResourceLink
Cloud Services
1 66 (33.17%) Amazon AWS
2 19 (9.55%) PaaS
3 12 (6.03%) Google Cloud Platform
4 11 (5.53%) Amazon S3
5 8 (4.02%) Amazon EC2
6 7 (3.52%) Heroku
6 7 (3.52%) Engine Yard
7 5 (2.51%) Amazon ELB
7 5 (2.51%) IaaS
7 5 (2.51%) OpenShift
7 5 (2.51%) GitHub
8 2 (1.01%) Rackspace Cloud
9 1 (0.50%) SaaS
9 1 (0.50%) Cloud Computing
9 1 (0.50%) Route 53
Communications & Networking
1 38 (19.10%) Firewall
2 22 (11.06%) DNS
3 21 (10.55%) VPN
4 20 (10.05%) TCP/IP
5 17 (8.54%) LDAP
6 15 (7.54%) LAN
7 12 (6.03%) VLAN
8 11 (5.53%) Network Security
9 10 (5.03%) SSL
9 10 (5.03%) SAN
9 10 (5.03%) HTTP
10 9 (4.52%) DMZ
10 9 (4.52%) Reverse Proxy
11 8 (4.02%) iSCSI
12 7 (3.52%) OpenLDAP
12 7 (3.52%) NAS
12 7 (3.52%) Internet
12 7 (3.52%) WAN
13 6 (3.02%) IPsec
14 5 (2.51%) EIGRP
Database & Business Intelligence
1 74 (37.19%) MySQL
2 66 (33.17%) MongoDB
3 45 (22.61%) NoSQL
4 39 (19.60%) PostgreSQL
5 29 (14.57%) Redis
6 28 (14.07%) Apache Cassandra
7 27 (13.57%) Hadoop
8 15 (7.54%) SQL Server
9 14 (7.04%) Relational Database
10 12 (6.03%) RDBMS
11 10 (5.03%) SQL Server 2012
11 10 (5.03%) Riak
12 9 (4.52%) HBase
13 8 (4.02%) Big Data
14 7 (3.52%) MariaDB
15 6 (3.02%) CouchDB
16 4 (2.01%) InterSystems Cache
16 4 (2.01%) Infinispan
17 3 (1.51%) SQL Server Integration Services
17 3 (1.51%) SQL Server Reporting Services
Development Applications
1 107 (53.77%) Jenkins
2 88 (44.22%) Git (software)
3 57 (28.64%) Maven
4 31 (15.58%) JIRA
5 30 (15.08%) Subversion
6 29 (14.57%) Artifactory
7 21 (10.55%) SonarQube
8 17 (8.54%) Selenium
8 17 (8.54%) Gerrit
9 16 (8.04%) Gradle
10 15 (7.54%) JMeter
10 15 (7.54%) Hudson
11 11 (5.53%) Mercurial
12 8 (4.02%) Cucumber
13 7 (3.52%) Geb
13 7 (3.52%) Spock
13 7 (3.52%) IntelliJ
14 6 (3.02%) Atlassian Bamboo
15 5 (2.51%) Mocha
15 5 (2.51%) Ant
General
1 6 (3.02%) Telecoms
2 3 (1.51%) Games
2 3 (1.51%) Advertising
3 2 (1.01%) Finance
4 1 (0.50%) Retail
4 1 (0.50%) Billing
4 1 (0.50%) Marketing
Job Titles
1 73 (36.68%) DevOps Engineer
2 36 (18.09%) Senior DevOps Engineer
3 24 (12.06%) Developer
4 20 (10.05%) Administrator
5 18 (9.05%) Linux DevOps Engineer
5 18 (9.05%) Systems Administrator
5 18 (9.05%) Linux Engineer
6 10 (5.03%) DevOps Specialist
7 9 (4.52%) Architect
8 8 (4.02%) Java Developer
9 5 (2.51%) Analyst
9 5 (2.51%) Infrastructure Engineer
9 5 (2.51%) Linux Administrator
9 5 (2.51%) Java Architect
10 4 (2.01%) PHP Developer
10 4 (2.01%) Deployment Engineer
10 4 (2.01%) Systems Engineer
10 4 (2.01%) Moodle Developer
10 4 (2.01%) UX Developer
10 4 (2.01%) DevOps Architect
Libraries, Frameworks & Software Standards
1 52 (26.13%) Web Services
2 28 (14.07%) LAMP
3 21 (10.55%) RabbitMQ
4 19 (9.55%) MCollective
5 17 (8.54%) CSS
5 17 (8.54%) HTML
6 16 (8.04%) RESTful
6 16 (8.04%) HTML5
6 16 (8.04%) Spring
7 15 (7.54%) jQuery
7 15 (7.54%) J2EE
8 14 (7.04%) CSS3
9 12 (6.03%) JSON
9 12 (6.03%) Twitter Bootstrap
10 11 (5.53%) JAX-RS
10 11 (5.53%) Apache Camel
11 10 (5.03%) .NET
12 9 (4.52%) REST
13 7 (3.52%) AngularJS
13 7 (3.52%) Spring Boot
Miscellaneous
1 18 (9.05%) Clustering
2 12 (6.03%) Device Driver
2 12 (6.03%) Hybrid Cloud
3 11 (5.53%) Analytical Skills
3 11 (5.53%) Data Centre
4 7 (3.52%) User Experience
5 5 (2.51%) Enterprise Software
5 5 (2.51%) W3C
5 5 (2.51%) Thin Client
5 5 (2.51%) Wiki
5 5 (2.51%) Fat Client
5 5 (2.51%) Computer Science
6 3 (1.51%) Private Cloud
6 3 (1.51%) IPTV
7 2 (1.01%) Freedom of Information Act
7 2 (1.01%) Online Games
7 2 (1.01%) Freedom of Information
7 2 (1.01%) VLE
7 2 (1.01%) Client/Server
7 2 (1.01%) Management Information System
Operating Systems
1 183 (91.96%) Linux
2 107 (53.77%) Ubuntu
3 61 (30.65%) Red Hat Enterprise Linux
4 43 (21.61%) Windows
5 23 (11.56%) UNIX
6 17 (8.54%) Debian
7 15 (7.54%) Windows Server 2012
8 9 (4.52%) Windows Server 2008
8 9 (4.52%) Windows 7
8 9 (4.52%) Fedora
9 7 (3.52%) Windows 8
10 6 (3.02%) HPUX
11 5 (2.51%) Windows Server 2003
11 5 (2.51%) SUSE
12 4 (2.01%) Solaris
13 3 (1.51%) Android
14 2 (1.01%) Mac OS X
14 2 (1.01%) CoreOS
15 1 (0.50%) Amazon Linux
15 1 (0.50%) AIX
Processes & Methodologies
1 120 (60.30%) DevOps
2 96 (48.24%) Agile Software Development
3 95 (47.74%) Continuous Integration
4 50 (25.13%) Scrum
5 45 (22.61%) Configuration Management
6 37 (18.59%) Open Source
7 34 (17.09%) Load Balancing
8 25 (12.56%) Continuous Delivery
9 23 (11.56%) Build Automation
10 20 (10.05%) TDD
11 18 (9.05%) Change Management
12 16 (8.04%) OWASP
12 16 (8.04%) Service Delivery
13 15 (7.54%) SOA
14 14 (7.04%) BDD
15 13 (6.53%) Automated Testing
16 12 (6.03%) Microservices
16 12 (6.03%) Kanban
17 11 (5.53%) Release Management
18 8 (4.02%) Disaster Recovery
Programming Languages
1 101 (50.75%) Bash Shell
2 87 (43.72%) Python
3 79 (39.70%) Ruby
4 77 (38.69%) Java
5 73 (36.68%) Perl
6 47 (23.62%) PHP
7 32 (16.08%) Shell Script
8 28 (14.07%) SQL
9 25 (12.56%) JavaScript
10 11 (5.53%) Korn
11 9 (4.52%) Groovy
11 9 (4.52%) Scala
12 6 (3.02%) Go
13 2 (1.01%) C
13 2 (1.01%) PowerShell
13 2 (1.01%) sed
14 1 (0.50%) C#
14 1 (0.50%) PL/SQL
14 1 (0.50%) PHP5
Qualifications
1 47 (23.62%) Security Cleared
2 32 (16.08%) SC Cleared
3 8 (4.02%) Degree
3 8 (4.02%) CCNA
3 8 (4.02%) Cisco Certification
4 5 (2.51%) DV Cleared
5 3 (1.51%) CCNP
5 3 (1.51%) JNCIA
5 3 (1.51%) JNCIS
6 2 (1.01%) MCSE
6 2 (1.01%) Microsoft Certification
6 2 (1.01%) RHCE
6 2 (1.01%) CTC Cleared
Quality Assurance & Compliance
1 19 (9.55%) QA
2 5 (2.51%) WAI
3 2 (1.01%) SLA
3 2 (1.01%) PCI DSS
System Software
1 34 (17.09%) VMware Infrastructure
2 33 (16.58%) vCloud
3 28 (14.07%) Docker
4 20 (10.05%) Active Directory
5 7 (3.52%) VMware ESXi
6 6 (3.02%) NFS
6 6 (3.02%) Terminal Services
6 6 (3.02%) Varnish
6 6 (3.02%) vSphere
6 6 (3.02%) iptables
7 5 (2.51%) Postfix
7 5 (2.51%) XenServer
7 5 (2.51%) Samba
7 5 (2.51%) Squid
8 2 (1.01%) Xen
8 2 (1.01%) Apache Flume
8 2 (1.01%) Apache ZooKeeper
8 2 (1.01%) Hyper-V
8 2 (1.01%) XenDesktop
8 2 (1.01%) XenApp
Systems Management
1 133 (66.83%) Puppet
2 78 (39.20%) Opscode Chef
3 57 (28.64%) ZABBIX
3 57 (28.64%) Ansible
4 39 (19.60%) Nagios
5 32 (16.08%) Salt
6 23 (11.56%) Kibana
7 21 (10.55%) Rundeck
8 19 (9.55%) Cobbler
9 17 (8.54%) logstash
10 16 (8.04%) HAProxy
11 12 (6.03%) Cacti
12 8 (4.02%) Vagrant
13 6 (3.02%) Zenoss
13 6 (3.02%) Graphite
13 6 (3.02%) Graylog
14 5 (2.51%) collectd
15 4 (2.01%) Red Hat Spacewalk
15 4 (2.01%) yum
16 2 (1.01%) Hadoop YARN
Vendors
1 107 (53.77%) Red Hat
2 77 (38.69%) VMware
3 27 (13.57%) Oracle
4 17 (8.54%) Microsoft
5 14 (7.04%) Rackspace
5 14 (7.04%) Cisco
6 12 (6.03%) Google
6 12 (6.03%) Citrix
6 12 (6.03%) Splunk
7 11 (5.53%) Perforce
8 7 (3.52%) Dell
9 6 (3.02%) HP
9 6 (3.02%) AppDynamics
9 6 (3.02%) New Relic
10 5 (2.51%) Pega
10 5 (2.51%) Percona
10 5 (2.51%) Twitter
10 5 (2.51%) Atlassian
11 4 (2.01%) Brocade
11 4 (2.01%) SaltStack
City of London
Templeton and Partners - SAP & UK Account
Rate: £475 - 535 per day
Posted: 7 days ago
South East London
Lawrence Harvey
Rate: £540 per day
Posted: 16 days ago