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 September 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 Sep 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 288 421 394
Rank change year-on-year
+133 -27
Contract jobs citing CentOS 428 252 257
As % of all contract IT jobs located in the UK 0.80% 0.44% 0.45%
As % of the Operating Systems category 3.80% 2.08% 2.04%
Number of daily rates quoted 284 161 184
Median daily rate £450 £425 £400
Median daily rate % change year-on-year
+5.88% +6.25%
90% offered a daily rate of more than £325 £300 £249
10% offered a daily rate of more than £575 £513 £490
UK excluding London median daily rate £425 £388 £375
% change year-on-year
+9.67% +3.33%
Number of hourly rates quoted 3 2 0
Median hourly rate £13.50 £36.00 -
Median hourly rate % change year-on-year
-62.50% -
UK excluding London median hourly rate £13.50 £36.00 -
% change year-on-year
-62.50% -

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
11271 12097 12627
As % of all contract IT jobs located in the UK 21.06% 21.14% 22.07%
Number of daily rates quoted 7078 7187 7343
Median daily rate £400 £375 £350
Median daily rate % change year-on-year
+6.66% +7.14%
90% offered a daily rate of more than £198 £175 £165
10% offered a daily rate of more than £550 £525 £500
UK excluding London median daily rate £350 £350 £325
% change year-on-year
- +7.69%
Number of hourly rates quoted 628 948 1098
Median hourly rate £16.29 £16.50 £16.50
Median hourly rate % change year-on-year
-1.27% -
90% offered a hourly rate of more than £11.00 £11.45 £11.00
10% offered a hourly rate of more than £42.00 £40.00 £37.50
UK excluding London median hourly rate £15.50 £16.50 £16.50
% change year-on-year
-6.06% -

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 September 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 September 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 +134 425 £450 +5.88% 106
London +79 271 £500 +17.64% 32
South East +32 43 £438 +4.16% 44
Croydon 0 32 £463 +2.77% 2
Yorkshire +13 31 £338 -20.58% 2
City of London +23 27 £475 +12.42% 10
Leeds +23 25 £413 +37.50% 1
West Yorkshire +14 25 £413 +37.50% 1
North West +37 22 £425 +21.42% 8
East Midlands +5 16 £400 - 2
East of England +9 15 £375 +47.05% 4
Surrey +14 13 £438 -2.77% 12
Manchester +9 13 £425 +21.42% 8
North East -14 12 £425 -10.52%
Lincolnshire - 12 £375 -
Hampshire +15 11 £325 -22.61% 18
Tyne and Wear -19 10 £425 -10.52%
Newcastle upon Tyne -23 10 £425 -10.52%
Lincoln - 10 £375 -
Berkshire +15 9 £463 +23.33% 6
South West +5 9 £463 +5.71% 12
West Midlands -17 8 £469 +53.06% 1
Wiltshire +13 6 £475 +5.55% 2
Portsmouth -4 6 £288 - 1
North Yorkshire +6 5 £338 +104.54% 1
Oxfordshire -8 5 £475 +46.15% 3
Cheshire - 5 £450 -
Birmingham - 5 £400 - 1
Hemel Hempstead - 5 £375 -
Hertfordshire - 5 £375 -

CentOS
Top 30 Related IT Skills

For the 6 months to 27 September 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.

1 745 (100.00%) Linux
2 456 (61.21%) DevOps
3 394 (52.89%) Puppet
4 343 (46.04%) Red Hat
5 294 (39.46%) Agile Software Development
6 290 (38.93%) VMware
6 290 (38.93%) Ansible
6 290 (38.93%) Jenkins
7 288 (38.66%) Red Hat Enterprise Linux
8 280 (37.58%) Amazon AWS
9 260 (34.90%) Ubuntu
10 251 (33.69%) Configuration Management
10 251 (33.69%) Apache
11 232 (31.14%) Git (software)
12 227 (30.47%) Continuous Integration
12 227 (30.47%) Docker
13 226 (30.34%) Ruby
14 214 (28.72%) Python
15 209 (28.05%) Security Cleared
16 199 (26.71%) PostgreSQL
17 190 (25.50%) Bash Shell
18 178 (23.89%) SC Cleared
19 173 (23.22%) Scrum
20 172 (23.09%) DNS
21 168 (22.55%) JIRA
22 159 (21.34%) Opscode Chef
23 157 (21.07%) Perl
24 153 (20.54%) MySQL
24 153 (20.54%) Confluence
25 143 (19.19%) Continuous Delivery

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
1 251 (33.69%) Apache
2 153 (20.54%) Confluence
3 120 (16.11%) Tomcat
4 88 (11.81%) OpenStack
5 83 (11.14%) Elasticsearch
6 55 (7.38%) nginx
7 32 (4.30%) JBoss
8 26 (3.49%) Jetty
8 26 (3.49%) Mule ESB
9 23 (3.09%) IIS
10 22 (2.95%) WildFly
11 13 (1.74%) MS Exchange
12 11 (1.48%) Cloud Foundry
13 8 (1.07%) Apache Spark
13 8 (1.07%) WebSphere
14 7 (0.94%) SAS
15 6 (0.81%) Exchange Server 2010
15 6 (0.81%) GlassFish
16 5 (0.67%) MediaWiki
16 5 (0.67%) WebSphere Application Server
Applications
1 83 (11.14%) HipChat
2 22 (2.95%) MS Excel
3 16 (2.15%) MS Office
4 10 (1.34%) MS Visio
5 1 (0.13%) Adobe Creative Suite
5 1 (0.13%) MS PowerPoint
5 1 (0.13%) MS Project
Business Applications
1 7 (0.94%) SAP Oil and Gas
2 1 (0.13%) Infor M3
Cloud Services
1 280 (37.58%) Amazon AWS
2 45 (6.04%) GitHub
3 35 (4.70%) Microsoft Azure
4 27 (3.62%) Amazon EC2
5 26 (3.49%) PaaS
6 22 (2.95%) IaaS
7 19 (2.55%) Amazon S3
8 13 (1.74%) Google Cloud Platform
8 13 (1.74%) Route 53
9 12 (1.61%) DigitalOcean
10 10 (1.34%) AWS CloudFormation
11 9 (1.21%) Amazon ElastiCache
11 9 (1.21%) SaaS
12 6 (0.81%) Amazon ELB
13 5 (0.67%) Amazon CloudWatch
13 5 (0.67%) Google Apps
14 4 (0.54%) Amazon EMR
14 4 (0.54%) Heroku
14 4 (0.54%) Rackspace Cloud
14 4 (0.54%) Virtual Private Cloud
Communications & Networking
1 172 (23.09%) DNS
2 91 (12.21%) SSH
3 87 (11.68%) Firewall
4 85 (11.41%) OpenLDAP
5 81 (10.87%) VPN
6 79 (10.60%) OpenVPN
7 62 (8.32%) TCP/IP
8 46 (6.17%) LDAP
8 46 (6.17%) SAN
9 35 (4.70%) DHCP
10 29 (3.89%) Reverse Proxy
11 24 (3.22%) Internet
11 24 (3.22%) SSL
12 22 (2.95%) HTTP
13 21 (2.82%) DMZ
13 21 (2.82%) iSCSI
14 19 (2.55%) Network Security
15 18 (2.42%) Cisco Nexus
16 15 (2.01%) SMTP
16 15 (2.01%) WAN
Database & Business Intelligence
1 199 (26.71%) PostgreSQL
2 153 (20.54%) MySQL
3 107 (14.36%) Hadoop
4 68 (9.13%) NoSQL
5 66 (8.86%) MongoDB
6 28 (3.76%) Redis
7 27 (3.62%) SQL Server
8 16 (2.15%) Amazon RDS
8 16 (2.15%) Big Data
9 14 (1.88%) Relational Database
10 9 (1.21%) SQL Server 2008
11 8 (1.07%) SQL Server 2014
12 6 (0.81%) MariaDB
13 5 (0.67%) Apache Cassandra
14 4 (0.54%) HBase
14 4 (0.54%) RDBMS
14 4 (0.54%) SQL Server 2012
15 3 (0.40%) Amazon DynamoDB
15 3 (0.40%) Data Lake
15 3 (0.40%) Oracle Database
Development Applications
1 290 (38.93%) Jenkins
2 232 (31.14%) Git (software)
3 168 (22.55%) JIRA
4 118 (15.84%) Maven
5 109 (14.63%) Sonatype Nexus
6 95 (12.75%) JIRA Agile
7 93 (12.48%) Ant
8 91 (12.21%) SonarQube
9 79 (10.60%) Bitbucket
10 77 (10.34%) JUnit
11 76 (10.20%) Liquibase
12 55 (7.38%) Subversion
13 32 (4.30%) Gerrit
14 30 (4.03%) GitLab
14 30 (4.03%) Mercurial
15 25 (3.36%) Hudson
16 19 (2.55%) Vagrant
17 17 (2.28%) Gradle
18 16 (2.15%) Artifactory
19 14 (1.88%) Atlassian Bamboo
General
1 45 (6.04%) Finance
2 18 (2.42%) Back Office
3 17 (2.28%) Retail
4 15 (2.01%) Telecoms
5 13 (1.74%) Publishing
6 9 (1.21%) Manufacturing
6 9 (1.21%) Marketing
7 8 (1.07%) Games
8 7 (0.94%) Electronics
8 7 (0.94%) Legal
9 6 (0.81%) Front Office
10 3 (0.40%) Advertising
10 3 (0.40%) Banking
11 2 (0.27%) Pharmaceutical
12 1 (0.13%) Billing
12 1 (0.13%) Financial Institution
Job Titles
1 305 (40.94%) DevOps Engineer
2 146 (19.60%) Linux Engineer
3 108 (14.50%) Linux/Unix DevOps
4 94 (12.62%) Administrator
5 79 (10.60%) AWS DevOps
6 78 (10.47%) Linux DevOps Engineer
7 77 (10.34%) Senior DevOps
8 76 (10.20%) Systems Administrator
9 68 (9.13%) AWS Engineer
10 65 (8.72%) Linux Administrator
11 62 (8.32%) Senior DevOps Engineer
12 55 (7.38%) Linux Systems Administrator
13 52 (6.98%) Consultant
14 42 (5.64%) DevOps Consultant
15 38 (5.10%) Continuous Deployment Engineer
16 37 (4.97%) Developer
17 31 (4.16%) Infrastructure Engineer
17 31 (4.16%) Lead DevOps
18 23 (3.09%) Systems Engineer
19 21 (2.82%) Senior Linux Engineer
Libraries, Frameworks & Software Standards
1 97 (13.02%) LAMP
2 86 (11.54%) ELK Stack
3 81 (10.87%) MCollective
3 81 (10.87%) Software Packaging
4 53 (7.11%) Web Services
5 52 (6.98%) LAPP Stack
6 35 (4.70%) LEMP Stack
7 34 (4.56%) RabbitMQ
8 31 (4.16%) REST
9 24 (3.22%) XML
10 20 (2.68%) Node.js
11 19 (2.55%) jQuery
12 17 (2.28%) J2EE
12 17 (2.28%) JSON
13 14 (1.88%) HTML
13 14 (1.88%) SOAP
14 13 (1.74%) ActiveMQ
14 13 (1.74%) RESTful
15 12 (1.61%) CakePHP
16 10 (1.34%) HTML5
Miscellaneous
1 54 (7.25%) Public Cloud
2 35 (4.70%) Data Centre
3 21 (2.82%) Clustering
4 19 (2.55%) Enterprise Cloud
5 18 (2.42%) Computer Science
6 15 (2.01%) Management Information System
7 14 (1.88%) Mobile App
7 14 (1.88%) Private Cloud
8 13 (1.74%) Analytical Skills
8 13 (1.74%) NHS
9 12 (1.61%) Digital Media
9 12 (1.61%) Visualisation
9 12 (1.61%) Wiki
10 9 (1.21%) Enterprise Software
10 9 (1.21%) Replication
11 8 (1.07%) Derivative
12 7 (0.94%) EMC VNX
12 7 (0.94%) Hybrid Cloud
12 7 (0.94%) PKI
13 6 (0.81%) Hedge funds
Operating Systems
1 745 (100.00%) Linux
2 288 (38.66%) Red Hat Enterprise Linux
3 260 (34.90%) Ubuntu
4 140 (18.79%) Windows
5 95 (12.75%) Unix
6 52 (6.98%) Windows Server
7 48 (6.44%) Fedora
8 41 (5.50%) Debian
9 26 (3.49%) Solaris
10 24 (3.22%) Windows Server 2008
11 18 (2.42%) Windows Server 2012
12 14 (1.88%) CoreOS
12 14 (1.88%) Windows Server 2003
13 11 (1.48%) SUSE
14 10 (1.34%) Mac OS X
15 9 (1.21%) AIX
16 7 (0.94%) Apple iOS
17 6 (0.81%) Android
18 5 (0.67%) Mac OS X Server
18 5 (0.67%) Windows 7
Processes & Methodologies
1 456 (61.21%) DevOps
2 294 (39.46%) Agile Software Development
3 251 (33.69%) Configuration Management
4 227 (30.47%) Continuous Integration
5 173 (23.22%) Scrum
6 143 (19.19%) Continuous Delivery
7 96 (12.89%) Service Management
8 87 (11.68%) Workflow
9 85 (11.41%) Open Source
10 79 (10.60%) Identity Management
11 77 (10.34%) Coaching
12 70 (9.40%) Case Management
13 64 (8.59%) Load Balancing
14 59 (7.92%) ITIL
15 52 (6.98%) Stakeholder Management
16 45 (6.04%) SDLC
17 40 (5.37%) Continuous Deployment
18 38 (5.10%) Software Engineering
19 36 (4.83%) High Availability
20 35 (4.70%) Migration
Programming Languages
1 226 (30.34%) Ruby
2 214 (28.72%) Python
3 190 (25.50%) Bash Shell
4 157 (21.07%) Perl
5 137 (18.39%) Java
6 123 (16.51%) PHP
7 118 (15.84%) Shell Script
8 66 (8.86%) SQL
9 53 (7.11%) JavaScript
10 33 (4.43%) PowerShell
11 23 (3.09%) Groovy
12 15 (2.01%) C
13 12 (1.61%) C++
14 6 (0.81%) AWK
14 6 (0.81%) Go
14 6 (0.81%) Korn
14 6 (0.81%) sed
15 5 (0.67%) C#
16 4 (0.54%) Jython
17 2 (0.27%) C-shell
Qualifications
1 209 (28.05%) Security Cleared
2 178 (23.89%) SC Cleared
3 49 (6.58%) BPSS Clearance
4 43 (5.77%) CTC Cleared
5 42 (5.64%) Degree
6 24 (3.22%) Cisco Certification
7 18 (2.42%) CCNP
8 14 (1.88%) RHCE
9 12 (1.61%) CCNA
9 12 (1.61%) DV Cleared
10 7 (0.94%) Microsoft Certification
10 7 (0.94%) VMware Certified Professional (VCP)
11 6 (0.81%) AWS Certification
11 6 (0.81%) BC Cleared
12 4 (0.54%) MCSE
12 4 (0.54%) PRINCE2 Certification
13 2 (0.27%) CCDA
13 2 (0.27%) CCIE
13 2 (0.27%) CEH
13 2 (0.27%) RHCA
Quality Assurance & Compliance
1 41 (5.50%) QA
2 22 (2.95%) Disclosure Scotland
3 11 (1.48%) ISO/IEC 27001
4 7 (0.94%) PCI DSS
5 2 (0.27%) SLA
6 1 (0.13%) HMG Security Policy Framework
System Software
1 227 (30.47%) Docker
2 138 (18.52%) VMware Infrastructure
3 116 (15.57%) vCloud
4 94 (12.62%) Squid
5 88 (11.81%) Postfix
6 73 (9.80%) Active Directory
7 61 (8.19%) Virtual Machines
8 48 (6.44%) vSphere
9 29 (3.89%) Xen
10 28 (3.76%) KVM
11 26 (3.49%) iptables
12 22 (2.95%) VMware ESXi
13 21 (2.82%) Hyper-V
13 21 (2.82%) Samba
14 18 (2.42%) VMware Server
15 17 (2.28%) NFS
16 10 (1.34%) VirtualBox
17 8 (1.07%) Dovecot
17 8 (1.07%) Sendmail
18 7 (0.94%) XenServer
Systems Management
1 394 (52.89%) Puppet
2 290 (38.93%) Ansible
3 159 (21.34%) Opscode Chef
4 132 (17.72%) Kubernetes
5 131 (17.58%) Terraform
5 131 (17.58%) ZABBIX
6 117 (15.70%) logstash
7 111 (14.90%) Kibana
8 86 (11.54%) Nagios
9 81 (10.87%) Rancher
10 55 (7.38%) HAProxy
11 40 (5.37%) Salt
12 20 (2.68%) SCCM
13 19 (2.55%) Grafana
14 16 (2.15%) Icinga
14 16 (2.15%) Packer
14 16 (2.15%) Rundeck
14 16 (2.15%) Zenoss
15 14 (1.88%) vRealize
16 10 (1.34%) Cacti
Vendors
1 343 (46.04%) Red Hat
2 290 (38.93%) VMware
3 125 (16.78%) Atlassian
4 104 (13.96%) Oracle
5 90 (12.08%) Sonatype
6 60 (8.05%) Microsoft
7 48 (6.44%) Cisco
8 26 (3.49%) EMC
9 24 (3.22%) Dell
9 24 (3.22%) Splunk
10 23 (3.09%) HP
11 20 (2.68%) Google
12 18 (2.42%) Rackspace
13 17 (2.28%) NetApp
13 17 (2.28%) SaltStack
14 15 (2.01%) New Relic
15 14 (1.88%) Black Duck
15 14 (1.88%) Veracode
16 13 (1.74%) Citrix
16 13 (1.74%) F5
Cardiff, South Glamorgan
X4 Group
Rate: £400 - 425 per day
Posted: Yesterday
Croydon, Surrey
LA International
Rate: £575 - £600 per day
Posted: 16 hours ago
Leeds, West Yorkshire
Blue Personnel
Rate: From £450 to £500 per day
Posted: Yesterday
Manchester, Lancashire
Oscar
Rate: £500 - £700 per day
Posted: Yesterday
Oxford, Oxfordshire
Opus Recruitment Solutions Ltd
Rate: £375 - £450 per day
Posted: Yesterday
City, London
Careerwise UK Limited
Rate: £550 - £650 per day
Posted: Yesterday
London
Careerwise UK Limited
Rate: £550 - £600 per day
Posted: Yesterday
Croydon, Surrey
LA International
Rate: £500 - £530 per day
Posted: Yesterday
London
E-synergy Solutions
Rate: £450 - £550 per day
Posted: 4 days ago
Brighton, East Sussex
Opus Recruitment Solutions Ltd
Rate: £400 - £475 per annum
Posted: 4 days ago
London
E-synergy Solutions
Rate: £550 - £600 per day
Posted: 5 days ago
Wiltshire
Opus Recruitment Solutions Ltd
Rate: £350 - £500 per day
Posted: 5 days ago
Milton Keynes, Buckinghamshire
LA International
Rate: £400 - £500 per day
Posted: 4 days ago
Swindon, Wiltshire
Experis Ltd
Rate: £400.0 - £550.00 per day
Posted: 5 days ago
Gloucestershire
IntaPeople
Rate: £400 - £450 per day
Posted: 5 days ago