The table below looks at the statistics for CentOS skills in IT contracts advertised for the England region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 20 January 2017 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
20 Jan 2017
Same period 2016 Same period 2015
CentOS Linux
UK / England
Rank 297 331 325
Rank change year-on-year
+34 -6
Contract jobs citing CentOS 288 288 288
As % of all contract IT jobs located in England 0.69% 0.62% 0.62%
As % of the Operating Systems category 3.35% 2.91% 2.69%
Number of daily rates quoted 224 204 199
Median daily rate £468 £450 £425
Median daily rate % change year-on-year
+3.88% +5.88%
90% offered a daily rate of more than £350 £347 £245
10% offered a daily rate of more than £573 £566 £525
UK excluding London median daily rate £450 £450 £350
% change year-on-year
- +28.57%
Number of hourly rates quoted 1 4 1
Median hourly rate £16.00 £50.00 £47.50
Median hourly rate % change year-on-year
-68.00% +5.26%
UK excluding London median hourly rate - £50.50 £47.50
% change year-on-year
- +6.31%

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

Operating Systems Category
England
Contract IT job ads with a match in the
Operating Systems category
8593 9901 10706
As % of all contract IT jobs located in England 20.72% 21.29% 23.05%
Number of daily rates quoted 5476 5991 6376
Median daily rate £400 £388 £363
Median daily rate % change year-on-year
+3.22% +6.89%
90% offered a daily rate of more than £175 £175 £175
10% offered a daily rate of more than £550 £550 £520
UK excluding London median daily rate £350 £350 £328
% change year-on-year
- +6.66%
Number of hourly rates quoted 524 763 887
Median hourly rate £17.50 £17.00 £16.00
Median hourly rate % change year-on-year
+2.94% +6.25%
90% offered a hourly rate of more than £11.00 £10.97 £11.00
10% offered a hourly rate of more than £47.00 £45.50 £36.08
UK excluding London median hourly rate £16.50 £17.00 £16.00
% change year-on-year
-2.94% +6.25%

CentOS
Jobs Demand Trend in England

The demand trend of contract jobs across the England region citing CentOS as a proportion of all IT contracts with a match in the Operating Systems category.

CentOS Jobs Demand Trend in England

CentOS
Daily Rate Trend in England

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

CentOS Daily Rate Trend in England

CentOS
Daily Rate Histogram in England

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the England region over the 3 months to 20 January 2017.

CentOS Daily Rate Histogram in England

CentOS
Hourly Rate Trend in England

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

CentOS Hourly Rate Trend in England

CentOS
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the England region over the 3 months to 20 January 2017. 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 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
London +13 176 £475 - 37
South East +20 63 £475 +6.14% 24
North West +39 20 £400 - 7
Yorkshire -25 7 £450 -8.16% 4
West Midlands - 6 £410 - 4
South West +12 5 £375 -6.25% 4
East Midlands +3 2 £160 -64.44% 2
East of England +2 2 £450 +25.00% 5
South Coast - 1 £450 -
CentOS
UK

CentOS
Top 30 Related IT Skills in England

For the 6 months to 20 January 2017, 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 England region with a requirement for CentOS.

1 703 (100.00%) Linux
2 413 (58.75%) DevOps
3 374 (53.20%) Puppet
4 322 (45.80%) Red Hat Enterprise Linux
5 321 (45.66%) Jenkins
6 306 (43.53%) Red Hat
7 304 (43.24%) Ansible
8 284 (40.40%) Python
9 271 (38.55%) Amazon AWS
10 264 (37.55%) Agile Software Development
10 264 (37.55%) VMware
11 261 (37.13%) Docker
12 243 (34.57%) Ubuntu
13 240 (34.14%) Ruby
13 240 (34.14%) Bash Shell
14 233 (33.14%) Continuous Integration
15 231 (32.86%) Git (software)
16 228 (32.43%) Configuration Management
17 222 (31.58%) Security Cleared
18 213 (30.30%) Apache
19 191 (27.17%) SC Cleared
20 183 (26.03%) Java
21 177 (25.18%) PostgreSQL
22 160 (22.76%) Scrum
23 147 (20.91%) VMware Infrastructure
23 147 (20.91%) Opscode Chef
24 146 (20.77%) DNS
25 138 (19.63%) JIRA
26 136 (19.35%) Perl
27 132 (18.78%) Terraform

CentOS
Top Related IT Skills in England 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
1 213 (30.30%) Apache
2 125 (17.78%) Confluence
3 92 (13.09%) Elasticsearch
4 91 (12.94%) Tomcat
5 78 (11.10%) nginx
6 62 (8.82%) OpenStack
7 36 (5.12%) Jetty
8 30 (4.27%) IIS
8 30 (4.27%) WildFly
9 25 (3.56%) Mule ESB
10 13 (1.85%) JBoss
11 12 (1.71%) WebSphere
12 11 (1.56%) Apache Spark
13 9 (1.28%) SAS
14 8 (1.14%) MS Exchange
15 7 (1.00%) Apache Qpid
16 5 (0.71%) CMS
16 5 (0.71%) Exchange Server 2010
17 4 (0.57%) Apache Pig
18 3 (0.43%) Apache ServiceMix
Applications
1 66 (9.39%) HipChat
2 8 (1.14%) MS Excel
2 8 (1.14%) MS Office
3 2 (0.28%) Adobe Creative Suite
4 1 (0.14%) Adobe Illustrator
4 1 (0.14%) Photoshop
Business Applications
1 5 (0.71%) SAP Oil and Gas
2 4 (0.57%) Infor M3
3 1 (0.14%) IBM Operational Decision Manager
3 1 (0.14%) Magento
Cloud Services
1 271 (38.55%) Amazon AWS
2 56 (7.97%) GitHub
3 50 (7.11%) Amazon EC2
4 48 (6.83%) Microsoft Azure
5 39 (5.55%) Amazon S3
6 27 (3.84%) Route 53
7 25 (3.56%) AWS CloudFormation
8 18 (2.56%) IaaS
9 17 (2.42%) Amazon CloudWatch
9 17 (2.42%) Virtual Private Cloud
10 16 (2.28%) AWS Lambda
11 14 (1.99%) Amazon ELB
12 13 (1.85%) Google Cloud Platform
13 12 (1.71%) Amazon ElastiCache
14 8 (1.14%) Amazon SQS
14 8 (1.14%) AWS CloudTrail
14 8 (1.14%) Cloud Computing
15 7 (1.00%) AWS Elastic Beanstalk
15 7 (1.00%) DigitalOcean
16 6 (0.85%) Azure Active Directory
Communications & Networking
1 146 (20.77%) DNS
2 106 (15.08%) VPN
3 87 (12.38%) TCP/IP
4 86 (12.23%) Firewall
5 85 (12.09%) SSH
6 69 (9.82%) OpenLDAP
6 69 (9.82%) OpenVPN
7 49 (6.97%) LDAP
8 46 (6.54%) Reverse Proxy
9 38 (5.41%) SSL
10 37 (5.26%) SAN
11 33 (4.69%) HTTP
12 26 (3.70%) IPsec
13 25 (3.56%) Cisco Nexus
14 24 (3.41%) SMTP
15 21 (2.99%) DHCP
16 18 (2.56%) DMZ
17 13 (1.85%) Internet
18 12 (1.71%) Network Security
19 11 (1.56%) Wireshark
Database & Business Intelligence
1 177 (25.18%) PostgreSQL
2 108 (15.36%) Hadoop
3 95 (13.51%) MySQL
4 57 (8.11%) NoSQL
5 31 (4.41%) Amazon RDS
6 27 (3.84%) MongoDB
7 24 (3.41%) SQL Server
8 23 (3.27%) Big Data
9 18 (2.56%) Relational Database
10 17 (2.42%) Oracle Database
11 14 (1.99%) Oracle Database 11g
11 14 (1.99%) Redis
12 13 (1.85%) Amazon DynamoDB
13 12 (1.71%) Apache Cassandra
14 11 (1.56%) MariaDB
15 10 (1.42%) Apache Hive
16 4 (0.57%) Ingres
16 4 (0.57%) SQL Server 2012
17 3 (0.43%) Data Mining
17 3 (0.43%) Data Warehouse
Development Applications
1 321 (45.66%) Jenkins
2 231 (32.86%) Git (software)
3 138 (19.63%) JIRA
4 110 (15.65%) Maven
5 85 (12.09%) Sonatype Nexus
6 77 (10.95%) Ant
6 77 (10.95%) SonarQube
7 75 (10.67%) JIRA Agile
8 74 (10.53%) Bitbucket
9 69 (9.82%) JUnit
10 66 (9.39%) Liquibase
11 38 (5.41%) GitLab
11 38 (5.41%) Subversion
12 35 (4.98%) Gerrit
12 35 (4.98%) Vagrant
13 34 (4.84%) Atlassian Bamboo
14 31 (4.41%) Hudson
15 30 (4.27%) Mercurial
16 24 (3.41%) TeamCity
17 14 (1.99%) Gradle
General
1 36 (5.12%) Finance
2 16 (2.28%) Telecoms
3 12 (1.71%) Back Office
4 11 (1.56%) Law
5 10 (1.42%) Legal
5 10 (1.42%) Retail
6 7 (1.00%) Manufacturing
6 7 (1.00%) Marketing
7 6 (0.85%) Publishing
8 5 (0.71%) Electronics
8 5 (0.71%) Front Office
9 2 (0.28%) Banking
10 1 (0.14%) Advertising
10 1 (0.14%) Billing
10 1 (0.14%) Games
10 1 (0.14%) Pharmaceutical
Job Titles
1 279 (39.69%) DevOps Engineer
2 111 (15.79%) Administrator
3 107 (15.22%) Linux Engineer
4 102 (14.51%) AWS DevOps
5 97 (13.80%) Systems Administrator
6 82 (11.66%) Linux Administrator
6 82 (11.66%) Linux/Unix DevOps
7 77 (10.95%) Linux Systems Administrator
8 74 (10.53%) AWS Engineer
9 67 (9.53%) Developer
9 67 (9.53%) Senior DevOps
10 66 (9.39%) Consultant
11 54 (7.68%) Linux DevOps Engineer
12 52 (7.40%) DevOps Consultant
13 41 (5.83%) Senior DevOps Engineer
14 29 (4.13%) AWS Consultant
15 28 (3.98%) Infrastructure Engineer
16 23 (3.27%) Systems Engineer
17 19 (2.70%) Java Developer
17 19 (2.70%) Senior Consultant
Libraries, Frameworks & Software Standards
1 100 (14.22%) ELK Stack
2 79 (11.24%) MCollective
3 70 (9.96%) Software Packaging
4 54 (7.68%) LAMP
5 46 (6.54%) Web Services
6 44 (6.26%) LAPP Stack
7 33 (4.69%) LEMP Stack
8 32 (4.55%) HTML
8 32 (4.55%) RabbitMQ
9 28 (3.98%) CSS
10 23 (3.27%) Node.js
11 22 (3.13%) XML
12 21 (2.99%) JSON
13 17 (2.42%) REST
13 17 (2.42%) XSLT
14 16 (2.28%) RSS
15 14 (1.99%) PostGIS
16 13 (1.85%) Middleware
17 11 (1.56%) .NET
18 9 (1.28%) ActiveMQ
Miscellaneous
1 49 (6.97%) Data Centre
2 42 (5.97%) Public Cloud
3 21 (2.99%) Analytical Skills
4 19 (2.70%) Computer Science
5 16 (2.28%) Management Information System
5 16 (2.28%) Web 2.0
6 14 (1.99%) Clustering
7 13 (1.85%) Private Cloud
8 12 (1.71%) PKI
9 11 (1.56%) Algorithms
10 9 (1.28%) Visualisation
11 8 (1.14%) NHS
11 8 (1.14%) Replication
12 7 (1.00%) Embedded Systems
12 7 (1.00%) Mobile App
13 5 (0.71%) Freedom of Information Act
13 5 (0.71%) Hedge funds
13 5 (0.71%) Hybrid Cloud
13 5 (0.71%) User Experience
13 5 (0.71%) Video on Demand
Operating Systems
1 703 (100.00%) Linux
2 322 (45.80%) Red Hat Enterprise Linux
3 243 (34.57%) Ubuntu
4 117 (16.64%) Windows
5 90 (12.80%) Unix
6 57 (8.11%) Debian
7 40 (5.69%) Windows Server
8 26 (3.70%) Fedora
9 21 (2.99%) SUSE
10 14 (1.99%) Windows Server 2008
11 13 (1.85%) RancherOS
11 13 (1.85%) VyOS
12 12 (1.71%) Solaris
12 12 (1.71%) Windows Server 2012
13 7 (1.00%) Windows Server 2003
14 6 (0.85%) CoreOS
14 6 (0.85%) Windows 2000
15 4 (0.57%) Apple iOS
16 3 (0.43%) Android
16 3 (0.43%) Windows 10
Processes & Methodologies
1 413 (58.75%) DevOps
2 264 (37.55%) Agile Software Development
3 233 (33.14%) Continuous Integration
4 228 (32.43%) Configuration Management
5 160 (22.76%) Scrum
6 122 (17.35%) Continuous Delivery
7 92 (13.09%) Service Management
8 79 (11.24%) Load Balancing
9 67 (9.53%) Identity Management
10 64 (9.10%) Workflow
11 61 (8.68%) Open Source
12 59 (8.39%) Coaching
13 49 (6.97%) Case Management
14 47 (6.69%) Stakeholder Management
15 46 (6.54%) ITIL
16 36 (5.12%) Migration
17 32 (4.55%) Continuous Deployment
17 32 (4.55%) Mentoring
18 31 (4.41%) Performance Tuning
19 22 (3.13%) E-Commerce
Programming Languages
1 284 (40.40%) Python
2 240 (34.14%) Bash Shell
2 240 (34.14%) Ruby
3 183 (26.03%) Java
4 136 (19.35%) Perl
5 96 (13.66%) Shell Script
6 74 (10.53%) PHP
7 68 (9.67%) JavaScript
8 60 (8.53%) SQL
9 39 (5.55%) PowerShell
10 38 (5.41%) C
11 22 (3.13%) C++
12 13 (1.85%) C#
13 11 (1.56%) Go
14 10 (1.42%) Groovy
15 9 (1.28%) Korn
16 7 (1.00%) R
17 6 (0.85%) PL/SQL
17 6 (0.85%) Scala
18 3 (0.43%) AWK
Qualifications
1 222 (31.58%) Security Cleared
2 191 (27.17%) SC Cleared
3 40 (5.69%) Degree
4 30 (4.27%) CTC Cleared
5 28 (3.98%) BPSS Clearance
6 23 (3.27%) DV Cleared
7 13 (1.85%) AWS Certification
7 13 (1.85%) VMware Certified Professional (VCP)
8 11 (1.56%) CCNP
8 11 (1.56%) Cisco Certification
9 9 (1.28%) CCNA
10 6 (0.85%) CEH
10 6 (0.85%) RHCT
11 4 (0.57%) BC Cleared
11 4 (0.57%) RHCE
12 3 (0.43%) CESG Certified Professional
13 2 (0.28%) Microsoft Certification
13 2 (0.28%) RHCSA
14 1 (0.14%) Citrix Certification
14 1 (0.14%) MCSE
Quality Assurance & Compliance
1 33 (4.69%) QA
2 12 (1.71%) PCI DSS
3 9 (1.28%) Disclosure Scotland
4 1 (0.14%) SLA
System Software
1 261 (37.13%) Docker
2 147 (20.91%) VMware Infrastructure
3 100 (14.22%) vCloud
4 76 (10.81%) Squid
5 72 (10.24%) Postfix
6 60 (8.53%) Virtual Machines
7 46 (6.54%) Active Directory
8 31 (4.41%) Xen
9 23 (3.27%) vSphere
10 17 (2.42%) KVM
11 14 (1.99%) VMware ESXi
12 11 (1.56%) VMware Server
13 9 (1.28%) VirtualBox
13 9 (1.28%) VMware ESX
14 8 (1.14%) iptables
14 8 (1.14%) Sendmail
15 6 (0.85%) Dovecot
16 5 (0.71%) GlusterFS
17 4 (0.57%) DFS Replication
17 4 (0.57%) LXC
Systems Management
1 374 (53.20%) Puppet
2 304 (43.24%) Ansible
3 147 (20.91%) Opscode Chef
4 132 (18.78%) Terraform
5 129 (18.35%) ZABBIX
6 125 (17.78%) Kubernetes
7 114 (16.22%) Kibana
8 110 (15.65%) logstash
9 76 (10.81%) Rancher
10 73 (10.38%) Nagios
11 59 (8.39%) HAProxy
12 30 (4.27%) Packer
13 24 (3.41%) Consul
14 21 (2.99%) SELinux
15 17 (2.42%) Salt
16 15 (2.13%) SCCM
17 13 (1.85%) Grafana
18 12 (1.71%) Graphite
18 12 (1.71%) vRealize
19 9 (1.28%) Pingdom
Vendors
1 306 (43.53%) Red Hat
2 264 (37.55%) VMware
3 94 (13.37%) Atlassian
4 83 (11.81%) Oracle
5 72 (10.24%) Sonatype
6 49 (6.97%) Cisco
7 39 (5.55%) Microsoft
8 31 (4.41%) Splunk
9 30 (4.27%) AppDynamics
10 22 (3.13%) Google
10 22 (3.13%) SaltStack
11 18 (2.56%) EMC
11 18 (2.56%) New Relic
12 13 (1.85%) Vyatta
13 11 (1.56%) HP
14 10 (1.42%) PagerDuty
14 10 (1.42%) Rackspace
15 9 (1.28%) IBM
16 8 (1.14%) RightScale
17 6 (0.85%) Trend Micro
London
Avion Recruitment Solutions
Rate: £550 - £600 per day
Posted: 3 hours ago
City, London
Square One Resources
Rate: From £500 to £525 per annum
Posted: 3 hours ago
City of London
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Rate: £275 - £300 per day
Posted: Yesterday
London
Austin Fraser
Rate: £450 - £460 per day
Posted: Yesterday
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Opus Recruitment Solutions Ltd
Rate: Market Rates
Posted: 2 days ago
Leeds, West Yorkshire
Experis Ltd
Rate: £400 - £450 per day
Posted: 3 days ago