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 8 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
8 Feb 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 243 279 344
Rank change year-on-year
+36 +65
Contract jobs citing CentOS 169 139 69
As % of all contract IT jobs located in London 0.80% 0.65% 0.32%
As % of the Operating Systems category 3.94% 2.86% 1.47%
Number of daily rates quoted 113 94 42
Average daily rate £456 £450 £406
Average daily rate % change year-on-year
+1.33% +10.76%
90% offered a daily rate of more than £375 £390 £301
10% offered a daily rate of more than £550 £575 £485
UK excluding London average daily rate £450 £350 £400
% change year-on-year
+28.57% -12.50%
Number of hourly rates quoted 3 0 0
Average hourly rate £50.00 - -
UK excluding London average hourly rate £50.50 £47.50 £15.00
% change year-on-year
+6.31% +216.66%
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
4284 4866 4700
As % of all contract IT jobs located in London 20.23% 22.92% 21.75%
Number of daily rates quoted 2923 3358 3087
Average daily rate £425 £400 £400
Average daily rate % change year-on-year
+6.25% -
90% offered a daily rate of more than £200 £185 £200
10% offered a daily rate of more than £575 £550 £550
UK excluding London average daily rate £350 £338 £307
% change year-on-year
+3.70% +9.93%
Number of hourly rates quoted 146 153 204
Average hourly rate £18.70 £17.37 £18.00
Average hourly rate % change year-on-year
+7.68% -3.52%
90% offered a hourly rate of more than £11.50 £12.50 £13.00
10% offered a hourly rate of more than £50.00 £35.00 £35.00
UK excluding London average hourly rate £17.50 £16.00 £15.00
% change year-on-year
+9.37% +6.66%

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 8 February 2016.

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 8 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
City of London +49 14 £445 -6.42% 11
Croydon -5 6 £425 +6.25% 1
Harrow - 4 £500 -
Hammersmith - 3 £525 -
Westminster - 1 £456 - 1
Canary Wharf - 1 £260 -
Greenwich - 1 £456 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 8 February 2016, 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.

1 303 (89.12%) Linux
2 200 (58.82%) Agile Software Development
3 198 (58.24%) DevOps
4 196 (57.65%) Puppet
5 193 (56.76%) Java
6 181 (53.24%) Ubuntu
7 171 (50.29%) Continuous Integration
8 164 (48.24%) Git (software)
8 164 (48.24%) Bash Shell
9 160 (47.06%) Jenkins
10 152 (44.71%) Red Hat Enterprise Linux
11 151 (44.41%) VMware
12 133 (39.12%) Configuration Management
13 123 (36.18%) VMware Infrastructure
14 120 (35.29%) Maven
15 115 (33.82%) Ruby
16 111 (32.65%) Scrum
17 105 (30.88%) Red Hat
18 93 (27.35%) ZABBIX
19 92 (27.06%) Python
20 82 (24.12%) Build Automation
21 81 (23.82%) Amazon AWS
22 80 (23.53%) MCollective
23 79 (23.24%) Apache
24 78 (22.94%) Security Cleared
25 74 (21.76%) Perl
26 73 (21.47%) Opscode Chef
27 69 (20.29%) SC Cleared
28 68 (20.00%) PostgreSQL
29 64 (18.82%) MySQL

CentOS
Top Related IT Skills in London by Category

For the 6 months to 8 February 2016, 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 79 (23.24%) Apache
2 55 (16.18%) Tomcat
3 51 (15.00%) Confluence
4 40 (11.76%) nginx
5 27 (7.94%) JBoss
6 24 (7.06%) OpenStack
7 21 (6.18%) Node.js
8 12 (3.53%) Jetty
9 11 (3.24%) Apache Spark
10 9 (2.65%) Alfresco
11 7 (2.06%) IIS
11 7 (2.06%) Mule ESB
12 5 (1.47%) Exchange Server 2010
12 5 (1.47%) MS Exchange
12 5 (1.47%) SAS
13 4 (1.18%) Elasticsearch
13 4 (1.18%) Mule
13 4 (1.18%) WebSphere
13 4 (1.18%) WildFly
14 3 (0.88%) uWSGI
Applications
1 8 (2.35%) HipChat
2 6 (1.76%) MS Office
3 5 (1.47%) MS Excel
4 3 (0.88%) Adobe Illustrator
4 3 (0.88%) Photoshop
Cloud Services
1 81 (23.82%) Amazon AWS
2 23 (6.76%) Google Cloud Platform
3 11 (3.24%) GitHub
4 9 (2.65%) AWS CloudFormation
4 9 (2.65%) Microsoft Azure
5 8 (2.35%) Amazon EC2
6 3 (0.88%) AWS Elastic Beanstalk
6 3 (0.88%) IaaS
6 3 (0.88%) SaaS
7 2 (0.59%) Amazon CloudWatch
7 2 (0.59%) Google Compute Engine
7 2 (0.59%) PaaS
8 1 (0.29%) Amazon ELB
8 1 (0.29%) Amazon S3
8 1 (0.29%) AWS CloudTrail
8 1 (0.29%) Cloud Computing
8 1 (0.29%) CloudFront
8 1 (0.29%) Office 365
8 1 (0.29%) Route 53
8 1 (0.29%) Virtual Private Cloud
Communications & Networking
1 48 (14.12%) Firewall
2 40 (11.76%) DNS
2 40 (11.76%) TCP/IP
3 38 (11.18%) VPN
4 23 (6.76%) LAN
5 21 (6.18%) HTTP
6 19 (5.59%) LDAP
7 17 (5.00%) Internet
8 15 (4.41%) iSCSI
8 15 (4.41%) SMTP
9 14 (4.12%) SAN
10 13 (3.82%) BGP
11 12 (3.53%) SNMP
12 11 (3.24%) SSL
12 11 (3.24%) Wi-Fi
13 10 (2.94%) IMAP
13 10 (2.94%) WAN
14 9 (2.65%) NAS
15 8 (2.35%) DHCP
15 8 (2.35%) SSH
Database & Business Intelligence
1 68 (20.00%) PostgreSQL
2 64 (18.82%) MySQL
3 45 (13.24%) MongoDB
4 44 (12.94%) Hadoop
5 31 (9.12%) HBase
6 27 (7.94%) NoSQL
7 24 (7.06%) Relational Database
8 20 (5.88%) Apache Cassandra
9 12 (3.53%) Big Data
10 11 (3.24%) Apache Hive
10 11 (3.24%) Couchbase
11 9 (2.65%) Redis
12 6 (1.76%) Amazon DynamoDB
12 6 (1.76%) CouchDB
12 6 (1.76%) MariaDB
13 3 (0.88%) Amazon RDS
13 3 (0.88%) DB2
13 3 (0.88%) RDBMS
13 3 (0.88%) SQL Server
14 2 (0.59%) Sqoop
Development Applications
1 164 (48.24%) Git (software)
2 160 (47.06%) Jenkins
3 120 (35.29%) Maven
4 55 (16.18%) JIRA
5 33 (9.71%) Cucumber
6 32 (9.41%) IntelliJ
7 27 (7.94%) Geb
7 27 (7.94%) Spock
7 27 (7.94%) Subversion
8 23 (6.76%) Artifactory
9 20 (5.88%) Gradle
10 17 (5.00%) Gerrit
10 17 (5.00%) Hudson
10 17 (5.00%) Selenium
11 14 (4.12%) Sonatype Nexus
11 14 (4.12%) Vagrant
12 12 (3.53%) SonarQube
13 10 (2.94%) Atlassian Bamboo
13 10 (2.94%) Grunt
13 10 (2.94%) JMeter
General
1 12 (3.53%) Finance
2 8 (2.35%) Games
2 8 (2.35%) Telecoms
3 4 (1.18%) Spanish Language
4 3 (0.88%) Advertising
5 2 (0.59%) Back Office
5 2 (0.59%) Banking
6 1 (0.29%) French Language
6 1 (0.29%) German Language
6 1 (0.29%) Legal
6 1 (0.29%) Marketing
6 1 (0.29%) Retail
Job Titles
1 145 (42.65%) DevOps Engineer
2 67 (19.71%) Developer
3 51 (15.00%) Linux Engineer
4 42 (12.35%) Operations Engineer
5 37 (10.88%) Java Developer
5 37 (10.88%) Linux/Unix DevOps
6 33 (9.71%) Administrator
7 28 (8.24%) Systems Administrator
8 26 (7.65%) Automation Engineer
9 24 (7.06%) Linux DevOps Engineer
10 23 (6.76%) SC Cleared Java Developer
11 15 (4.41%) Architect
11 15 (4.41%) Linux Administrator
12 14 (4.12%) Senior Developer
13 13 (3.82%) Infrastructure Architect
13 13 (3.82%) Linux Systems Administrator
14 12 (3.53%) Senior Linux Engineer
15 11 (3.24%) Consultant
15 11 (3.24%) Unix Engineer
16 10 (2.94%) Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 80 (23.53%) MCollective
2 50 (14.71%) Web Services
3 46 (13.53%) LAMP
4 43 (12.65%) Spring
5 42 (12.35%) RESTful
6 32 (9.41%) LAPP Stack
7 28 (8.24%) Apache Camel
8 27 (7.94%) Grails
8 27 (7.94%) JAX-RS
8 27 (7.94%) Spring Boot
9 21 (6.18%) J2EE
10 20 (5.88%) LEMP Stack
11 18 (5.29%) HTML
12 17 (5.00%) AngularJS
13 16 (4.71%) Twitter Bootstrap
14 15 (4.41%) jQuery
15 13 (3.82%) CSS
16 12 (3.53%) Java EE
17 11 (3.24%) HTML5
18 9 (2.65%) Kafka
Miscellaneous
1 11 (3.24%) Private Cloud
2 7 (2.06%) Algorithms
2 7 (2.06%) Mobile App
3 6 (1.76%) Data Structures
3 6 (1.76%) Enterprise Software
3 6 (1.76%) MPEG
4 5 (1.47%) Analytical Skills
4 5 (1.47%) Derivative
4 5 (1.47%) User Experience
5 4 (1.18%) Clustering
5 4 (1.18%) Data Centre
6 3 (0.88%) PlayStation
6 3 (0.88%) Tandem
6 3 (0.88%) W3C
7 2 (0.59%) Data Integration
7 2 (0.59%) Digital Media
7 2 (0.59%) Management Information System
7 2 (0.59%) Public Cloud
7 2 (0.59%) Replication
7 2 (0.59%) Wiki
Operating Systems
1 303 (89.12%) Linux
2 181 (53.24%) Ubuntu
3 152 (44.71%) Red Hat Enterprise Linux
4 59 (17.35%) Unix
4 59 (17.35%) Windows
5 25 (7.35%) Debian
6 24 (7.06%) Windows Server
7 16 (4.71%) Windows Server 2012
8 12 (3.53%) Solaris
8 12 (3.53%) Windows 7
8 12 (3.53%) Windows Server 2008
9 10 (2.94%) AIX
10 8 (2.35%) Mac OS X Server
11 7 (2.06%) Fedora
12 6 (1.76%) Mac OS
12 6 (1.76%) SUSE
13 5 (1.47%) Windows Server 2003
14 4 (1.18%) Mac OS X
14 4 (1.18%) VMS
15 3 (0.88%) Windows Mobile
Processes & Methodologies
1 200 (58.82%) Agile Software Development
2 198 (58.24%) DevOps
3 171 (50.29%) Continuous Integration
4 133 (39.12%) Configuration Management
5 111 (32.65%) Scrum
6 82 (24.12%) Build Automation
7 58 (17.06%) TDD
8 54 (15.88%) Continuous Delivery
9 50 (14.71%) Open Source
10 31 (9.12%) Microservices
11 26 (7.65%) API Development
12 25 (7.35%) E-Commerce
13 20 (5.88%) Web Operations
14 19 (5.59%) High Availability
14 19 (5.59%) Migration
15 15 (4.41%) BDD
15 15 (4.41%) Software Engineering
16 14 (4.12%) Service Delivery
17 11 (3.24%) Kanban
17 11 (3.24%) Load Balancing
Programming Languages
1 193 (56.76%) Java
2 164 (48.24%) Bash Shell
3 115 (33.82%) Ruby
4 92 (27.06%) Python
5 74 (21.76%) Perl
6 45 (13.24%) PHP
7 33 (9.71%) JavaScript
8 30 (8.82%) Groovy
9 23 (6.76%) SQL
10 21 (6.18%) PowerShell
11 14 (4.12%) Shell Script
12 11 (3.24%) Scala
13 7 (2.06%) C++
14 6 (1.76%) C
14 6 (1.76%) Korn
15 3 (0.88%) C#
15 3 (0.88%) PL/SQL
16 2 (0.59%) Go
16 2 (0.59%) VB
17 1 (0.29%) XAML
Qualifications
1 78 (22.94%) Security Cleared
2 69 (20.29%) SC Cleared
3 8 (2.35%) CCNA
3 8 (2.35%) Cisco Certification
3 8 (2.35%) Degree
3 8 (2.35%) DV Cleared
4 4 (1.18%) BPSS Clearance
4 4 (1.18%) CCNP
4 4 (1.18%) MCSE
4 4 (1.18%) Microsoft Certification
5 3 (0.88%) RHCE
6 2 (0.59%) CCSA
6 2 (0.59%) CCSE
6 2 (0.59%) RHCSA
6 2 (0.59%) VMware Certified Professional (VCP)
7 1 (0.29%) BC Cleared
7 1 (0.29%) LPIC
7 1 (0.29%) MCDBA
7 1 (0.29%) MCP
7 1 (0.29%) MCSD
Quality Assurance & Compliance
1 6 (1.76%) PCI DSS
2 5 (1.47%) Disclosure Scotland
3 2 (0.59%) QA
4 1 (0.29%) SLA
System Software
1 123 (36.18%) VMware Infrastructure
2 44 (12.94%) Docker
3 34 (10.00%) Active Directory
4 21 (6.18%) vCloud
5 19 (5.59%) KVM
6 16 (4.71%) VMware ESXi
7 15 (4.41%) vSphere
8 10 (2.94%) NFS
8 10 (2.94%) QEMU
9 8 (2.35%) iptables
10 6 (1.76%) oVirt
10 6 (1.76%) RHEV
11 5 (1.47%) Postfix
11 5 (1.47%) Samba
11 5 (1.47%) Sendmail
11 5 (1.47%) Squid
11 5 (1.47%) VMware ESX
12 3 (0.88%) Dovecot
12 3 (0.88%) Varnish
12 3 (0.88%) Xen
Systems Management
1 196 (57.65%) Puppet
2 93 (27.35%) ZABBIX
3 73 (21.47%) Opscode Chef
4 61 (17.94%) Ansible
5 29 (8.53%) Nagios
6 26 (7.65%) Salt
7 16 (4.71%) HAProxy
8 13 (3.82%) logstash
9 11 (3.24%) Kibana
10 10 (2.94%) Cacti
10 10 (2.94%) CFEngine
11 8 (2.35%) Rundeck
12 7 (2.06%) yum
12 7 (2.06%) Zenoss
13 5 (1.47%) Kubernetes
13 5 (1.47%) Oracle ZFS
14 4 (1.18%) Bacula
14 4 (1.18%) Capistrano
15 3 (0.88%) HP Quality Center
15 3 (0.88%) systemd
Vendors
1 151 (44.41%) VMware
2 105 (30.88%) Red Hat
3 31 (9.12%) Cisco
4 23 (6.76%) Google
5 21 (6.18%) Microsoft
6 17 (5.00%) Atlassian
7 15 (4.41%) Dell
8 13 (3.82%) HP
9 11 (3.24%) Oracle
10 10 (2.94%) Twitter
11 9 (2.65%) Cloudera
12 8 (2.35%) Sonatype
13 7 (2.06%) NetApp
14 5 (1.47%) EMC
15 4 (1.18%) Black Duck
15 4 (1.18%) Percona
15 4 (1.18%) Veracode
16 3 (0.88%) Rally
16 3 (0.88%) Splunk
16 3 (0.88%) Supermicro
London
E-synergy Solutions
Rate: £300 - £400 per day
Posted: 6 hours ago
London
Senitor Associates
Rate: £260 - £300 per day
Posted: 7 hours ago
London
Square One Resources
Rate: Market rates
Posted: 8 hours ago
London
Opus Recruitment Solutions Ltd
Rate: Competitive
Posted: 4 days ago
London
Senitor Associates
Rate: £180 - £230 per day
Posted: 4 days ago
London
Vivid Resourcing
Rate: £500 - 600 per day
Posted: 6 days ago
City of London
Computer Futures
Rate: competitive
Posted: 12 days ago
City of London
Computer Futures
Rate: competitive
Posted: 14 days ago
City of Westminster
Hays Specialist Recruitment Ltd
Rate: £456.00 per day
Posted: 18 days ago
City of Westminster
Hays Specialist Recruitment Ltd
Rate: £456.00 per day
Posted: 18 days ago
City of London
Computer Futures
Rate: competitive
Posted: 19 days ago
London
Vivid Resourcing
Rate: £Neg
Posted: 25 days ago
London
Hays Specialist Recruitment Ltd
Rate: £400.00 - £450.00 per day
Posted: 26 days ago