The table below looks at the statistics for CentOS skills in IT contracts advertised for the London region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 24 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
24 Jun 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 260 328 357
Rank change year-on-year
+68 +29
Contract jobs citing CentOS 170 96 69
As % of all contract IT jobs located in London 0.79% 0.41% 0.29%
As % of the Operating Systems category 3.61% 1.91% 1.30%
Number of daily rates quoted 124 59 54
Median daily rate £500 £450 £406
Median daily rate % change year-on-year
+11.11% +10.76%
90% offered a daily rate of more than £400 £336 £302
10% offered a daily rate of more than £575 £550 £557
UK excluding London median daily rate £425 £375 £350
% change year-on-year
+13.33% +7.14%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £55.00 - £16.75
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 5020 5313
As % of all contract IT jobs located in London 21.74% 21.50% 22.70%
Number of daily rates quoted 3349 3349 3597
Median daily rate £425 £400 £400
Median daily rate % change year-on-year
+6.25% -
90% offered a daily rate of more than £215 £195 £180
10% offered a daily rate of more than £575 £575 £550
UK excluding London median daily rate £363 £349 £305
% change year-on-year
+3.86% +14.42%
Number of hourly rates quoted 95 189 244
Median hourly rate £16.25 £18.71 £16.53
Median hourly rate % change year-on-year
-13.14% +13.18%
90% offered a hourly rate of more than £12.50 £12.50 £11.50
10% offered a hourly rate of more than £40.00 £47.83 £25.00
UK excluding London median hourly rate £17.00 £16.20 £15.00
% change year-on-year
+4.93% +8.00%

CentOS
Jobs Demand Trend in London

The demand trend of contract jobs across the London region citing CentOS as a proportion of all IT contracts with a match in 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 24 June 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 median contractor rates quoted in IT jobs citing CentOS within the London region over the 3 months to 24 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
City of London +35 11 £475 +11.76% 12
Croydon -10 9 £490 +15.29%
Ealing +2 3 - -
Harrow - 3 £500 -
Barnet - 1 £400 -
Canary Wharf - 1 £375 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 24 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 across the London region with a requirement for CentOS.

1 321 (100.00%) Linux
2 225 (70.09%) DevOps
3 175 (54.52%) Puppet
4 172 (53.58%) Red Hat
5 142 (44.24%) Agile Software Development
6 140 (43.61%) Red Hat Enterprise Linux
7 133 (41.43%) Jenkins
8 129 (40.19%) Bash Shell
9 118 (36.76%) Continuous Integration
10 117 (36.45%) Amazon AWS
11 116 (36.14%) Ubuntu
12 115 (35.83%) Git (software)
13 112 (34.89%) Java
14 109 (33.96%) Configuration Management
15 106 (33.02%) Python
16 96 (29.91%) Ansible
17 90 (28.04%) Perl
17 90 (28.04%) VMware
18 83 (25.86%) Windows
18 83 (25.86%) Apache
19 79 (24.61%) Ruby
20 71 (22.12%) MySQL
21 67 (20.87%) Opscode Chef
22 63 (19.63%) VMware Infrastructure
23 61 (19.00%) Docker
24 60 (18.69%) Security Cleared
25 57 (17.76%) PostgreSQL
26 54 (16.82%) PHP
27 53 (16.51%) Tomcat
27 53 (16.51%) Maven

CentOS
Top Related IT Skills in London 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 83 (25.86%) Apache
2 53 (16.51%) Tomcat
3 50 (15.58%) OpenStack
4 40 (12.46%) Confluence
5 28 (8.72%) JBoss
5 28 (8.72%) nginx
6 13 (4.05%) Elasticsearch
7 11 (3.43%) IIS
8 10 (3.12%) Jetty
9 9 (2.80%) Mule ESB
10 5 (1.56%) Apache Spark
11 3 (0.93%) MediaWiki
11 3 (0.93%) Moodle
11 3 (0.93%) Zimbra
12 2 (0.62%) Alfresco
12 2 (0.62%) Drupal
12 2 (0.62%) Gunicorn
12 2 (0.62%) uWSGI
12 2 (0.62%) WildFly
13 1 (0.31%) WebSphere
Applications
1 10 (3.12%) HipChat
2 6 (1.87%) MS Office
3 5 (1.56%) MS Excel
4 1 (0.31%) MS PowerPoint
4 1 (0.31%) MS Project
Business Applications
1 5 (1.56%) SAP Oil and Gas
Cloud Services
1 117 (36.45%) Amazon AWS
2 17 (5.30%) Google Cloud Platform
3 15 (4.67%) Amazon EC2
4 14 (4.36%) GitHub
5 13 (4.05%) AWS CloudFormation
5 13 (4.05%) Microsoft Azure
6 10 (3.12%) IaaS
7 7 (2.18%) Amazon S3
7 7 (2.18%) SaaS
8 6 (1.87%) AWS Elastic Beanstalk
9 5 (1.56%) Amazon CloudWatch
9 5 (1.56%) Google Apps
10 4 (1.25%) CloudFront
10 4 (1.25%) Route 53
11 3 (0.93%) PaaS
11 3 (0.93%) Rackspace Cloud
11 3 (0.93%) Virtual Private Cloud
12 2 (0.62%) Amazon ElastiCache
12 2 (0.62%) Amazon SQS
12 2 (0.62%) AWS CloudTrail
Communications & Networking
1 44 (13.71%) DNS
2 38 (11.84%) TCP/IP
3 31 (9.66%) Firewall
4 21 (6.54%) LDAP
4 21 (6.54%) VPN
5 15 (4.67%) SAN
6 12 (3.74%) FTP
6 12 (3.74%) SNMP
7 11 (3.43%) DMZ
7 11 (3.43%) Fibre Channel
7 11 (3.43%) Internet
8 10 (3.12%) SMTP
9 9 (2.80%) DHCP
9 9 (2.80%) LAN
9 9 (2.80%) Reverse Proxy
10 8 (2.49%) WAN
11 7 (2.18%) Cisco ASA
11 7 (2.18%) Network Security
11 7 (2.18%) OpenLDAP
11 7 (2.18%) SSH
Database & Business Intelligence
1 71 (22.12%) MySQL
2 57 (17.76%) PostgreSQL
3 41 (12.77%) MongoDB
4 32 (9.97%) NoSQL
5 20 (6.23%) Relational Database
6 18 (5.61%) Hadoop
7 15 (4.67%) Redis
8 14 (4.36%) Apache Cassandra
9 13 (4.05%) SQL Server
10 9 (2.80%) HBase
11 8 (2.49%) Big Data
12 7 (2.18%) Couchbase
13 6 (1.87%) Amazon RDS
14 5 (1.56%) MariaDB
15 4 (1.25%) Apache Hive
16 3 (0.93%) Amazon DynamoDB
16 3 (0.93%) DB2
16 3 (0.93%) Oracle Database
16 3 (0.93%) RDBMS
17 2 (0.62%) Amazon Redshift
Development Applications
1 133 (41.43%) Jenkins
2 115 (35.83%) Git (software)
3 53 (16.51%) Maven
4 41 (12.77%) JIRA
5 22 (6.85%) Subversion
6 19 (5.92%) Gradle
6 19 (5.92%) Sonatype Nexus
7 15 (4.67%) Ant
7 15 (4.67%) Hudson
8 14 (4.36%) Atlassian Bamboo
9 13 (4.05%) Artifactory
10 12 (3.74%) TeamCity
11 11 (3.43%) Gerrit
11 11 (3.43%) Mercurial
11 11 (3.43%) SonarQube
11 11 (3.43%) Vagrant
12 10 (3.12%) Cucumber
13 7 (2.18%) Geb
13 7 (2.18%) IntelliJ
13 7 (2.18%) Spock
General
1 32 (9.97%) Finance
2 17 (5.30%) Games
3 14 (4.36%) Retail
4 9 (2.80%) Telecoms
5 7 (2.18%) Marketing
6 6 (1.87%) Manufacturing
7 5 (1.56%) Electronics
8 4 (1.25%) Banking
8 4 (1.25%) Publishing
9 2 (0.62%) Spanish Language
10 1 (0.31%) Back Office
10 1 (0.31%) Financial Institution
Job Titles
1 148 (46.11%) DevOps Engineer
2 84 (26.17%) Linux Engineer
3 70 (21.81%) Linux/Unix DevOps
4 54 (16.82%) Linux DevOps Engineer
5 33 (10.28%) Administrator
6 29 (9.03%) AWS DevOps
7 28 (8.72%) AWS Engineer
8 23 (7.17%) Senior DevOps
9 22 (6.85%) Developer
9 22 (6.85%) Linux Administrator
10 21 (6.54%) Senior DevOps Engineer
10 21 (6.54%) Systems Administrator
11 18 (5.61%) Senior Linux Engineer
12 16 (4.98%) Systems Engineer
13 15 (4.67%) Linux Systems Administrator
14 13 (4.05%) Automation Engineer
14 13 (4.05%) Consultant
14 13 (4.05%) Linux Systems Engineer
15 10 (3.12%) Architect
15 10 (3.12%) Web Engineer
Libraries, Frameworks & Software Standards
1 43 (13.40%) LAMP
1 43 (13.40%) Web Services
2 23 (7.17%) LAPP Stack
3 21 (6.54%) ELK Stack
4 17 (5.30%) RESTful
5 16 (4.98%) J2EE
6 15 (4.67%) MCollective
7 13 (4.05%) LEMP Stack
8 11 (3.43%) RabbitMQ
8 11 (3.43%) REST
9 10 (3.12%) XML
10 9 (2.80%) Apache Camel
11 8 (2.49%) ActiveMQ
11 8 (2.49%) Spring
12 7 (2.18%) Grails
12 7 (2.18%) HTML
12 7 (2.18%) Java EE
12 7 (2.18%) JAX-RS
12 7 (2.18%) Node.js
12 7 (2.18%) Spring Boot
Miscellaneous
1 16 (4.98%) Private Cloud
2 13 (4.05%) Mobile App
3 12 (3.74%) Public Cloud
4 10 (3.12%) PlayStation
5 9 (2.80%) Management Information System
6 8 (2.49%) Enterprise Software
7 7 (2.18%) Clustering
7 7 (2.18%) Data Centre
7 7 (2.18%) Digital Media
8 5 (1.56%) Replication
9 4 (1.25%) Derivative
10 3 (0.93%) Algorithms
10 3 (0.93%) Analytical Skills
10 3 (0.93%) Data Structures
10 3 (0.93%) Enterprise Cloud
10 3 (0.93%) Fintech
10 3 (0.93%) User Experience
10 3 (0.93%) Wiki
11 2 (0.62%) Blog
11 2 (0.62%) Over-the-Top Content
Operating Systems
1 321 (100.00%) Linux
2 140 (43.61%) Red Hat Enterprise Linux
3 116 (36.14%) Ubuntu
4 83 (25.86%) Windows
5 48 (14.95%) Unix
6 27 (8.41%) Debian
7 26 (8.10%) Fedora
8 25 (7.79%) Windows Server
9 20 (6.23%) Windows Server 2012
10 17 (5.30%) Windows Server 2008
11 16 (4.98%) Windows Server 2003
12 14 (4.36%) Mac OS X
13 13 (4.05%) Solaris
14 10 (3.12%) SUSE
15 8 (2.49%) CoreOS
16 5 (1.56%) Android
16 5 (1.56%) Mac OS X Server
16 5 (1.56%) VMS
16 5 (1.56%) Windows 7
16 5 (1.56%) Windows Mobile
Processes & Methodologies
1 225 (70.09%) DevOps
2 142 (44.24%) Agile Software Development
3 118 (36.76%) Continuous Integration
4 109 (33.96%) Configuration Management
5 52 (16.20%) Open Source
5 52 (16.20%) Scrum
6 46 (14.33%) Continuous Delivery
7 27 (8.41%) Load Balancing
8 21 (6.54%) E-Commerce
8 21 (6.54%) Release Management
9 20 (6.23%) High Availability
10 19 (5.92%) SOA
11 18 (5.61%) Build Automation
11 18 (5.61%) Service Delivery
12 16 (4.98%) Migration
12 16 (4.98%) TDD
13 15 (4.67%) ITIL
14 14 (4.36%) Disaster Recovery
14 14 (4.36%) SDLC
15 13 (4.05%) Software Delivery
Programming Languages
1 129 (40.19%) Bash Shell
2 112 (34.89%) Java
3 106 (33.02%) Python
4 90 (28.04%) Perl
5 79 (24.61%) Ruby
6 54 (16.82%) PHP
7 21 (6.54%) SQL
8 16 (4.98%) PowerShell
9 14 (4.36%) JavaScript
9 14 (4.36%) Shell Script
10 7 (2.18%) AWK
10 7 (2.18%) Groovy
10 7 (2.18%) sed
11 4 (1.25%) C
11 4 (1.25%) Korn
11 4 (1.25%) Scala
12 3 (0.93%) C#
13 2 (0.62%) C++
13 2 (0.62%) Go
14 1 (0.31%) Pig Latin
Qualifications
1 60 (18.69%) Security Cleared
2 52 (16.20%) SC Cleared
3 10 (3.12%) CCNA
3 10 (3.12%) Cisco Certification
4 6 (1.87%) BPSS Clearance
5 5 (1.56%) Degree
6 3 (0.93%) CCNP
6 3 (0.93%) MCSE
6 3 (0.93%) MCTS
6 3 (0.93%) Microsoft Certification
7 2 (0.62%) BC Cleared
7 2 (0.62%) CCDA
7 2 (0.62%) CCIE
8 1 (0.31%) CCSA
8 1 (0.31%) CCSE
8 1 (0.31%) JNCIA
8 1 (0.31%) JNCIS
8 1 (0.31%) RHCE
Quality Assurance & Compliance
1 5 (1.56%) QA
2 4 (1.25%) PCI DSS
3 3 (0.93%) SLA
4 2 (0.62%) Disclosure Scotland
5 1 (0.31%) HMG Security Policy Framework
System Software
1 63 (19.63%) VMware Infrastructure
2 61 (19.00%) Docker
3 33 (10.28%) Active Directory
4 28 (8.72%) KVM
5 23 (7.17%) vCloud
5 23 (7.17%) Virtual Machines
6 21 (6.54%) VMware ESXi
7 12 (3.74%) Samba
8 9 (2.80%) Hyper-V
8 9 (2.80%) iptables
8 9 (2.80%) NFS
9 7 (2.18%) StorNext
9 7 (2.18%) vSphere
9 7 (2.18%) XenServer
10 6 (1.87%) VirtualBox
10 6 (1.87%) Xen
11 3 (0.93%) oVirt
11 3 (0.93%) Postfix
12 2 (0.62%) GlusterFS
12 2 (0.62%) Slurm Workload Manager
Systems Management
1 175 (54.52%) Puppet
2 96 (29.91%) Ansible
3 67 (20.87%) Opscode Chef
4 42 (13.08%) Nagios
5 40 (12.46%) ZABBIX
6 27 (8.41%) HAProxy
7 25 (7.79%) Kubernetes
8 24 (7.48%) Salt
9 22 (6.85%) Kibana
9 22 (6.85%) logstash
10 15 (4.67%) Terraform
11 13 (4.05%) Rundeck
12 12 (3.74%) Packer
12 12 (3.74%) SCCM
13 10 (3.12%) Xymon
14 9 (2.80%) Zenoss
15 8 (2.49%) Cacti
16 5 (1.56%) CFEngine
16 5 (1.56%) Norton AntiVirus
16 5 (1.56%) Symantec Endpoint Protection
Vendors
1 172 (53.58%) Red Hat
2 90 (28.04%) VMware
3 33 (10.28%) Microsoft
4 22 (6.85%) Google
5 21 (6.54%) Atlassian
5 21 (6.54%) Cisco
6 19 (5.92%) NetApp
7 15 (4.67%) Oracle
8 13 (4.05%) Citrix
8 13 (4.05%) Dell
8 13 (4.05%) EMC
9 11 (3.43%) Apple
9 11 (3.43%) Sonatype
10 10 (3.12%) Black Duck
10 10 (3.12%) Veracode
11 9 (2.80%) HP
12 8 (2.49%) New Relic
13 7 (2.18%) ServiceNow
13 7 (2.18%) Splunk
14 6 (1.87%) Symantec
London
Austin Fraser
Rate: £400 - £450 per day + Negotiable
Posted: Yesterday
Central London / West End
Digitech Resourcing Ltd
Rate: Up to £525 per day
Posted: Yesterday
East London
Careerwise UK Limited
Rate: £500 - £550 per day
Posted: Yesterday
London
Careerwise UK Limited
Rate: £600 - £650 per day
Posted: Yesterday
London
Careerwise UK Limited
Rate: £450 - £600 per day
Posted: 4 days ago
London
Salt
Rate: £350 - £400 per day
Posted: 3 days ago