The following table provides summary statistics for contract job vacancies advertised in the North West with a requirement for CentOS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CentOS over the 3 months to 24 March 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

3 months to
24 Mar 2017
Same period 2016 Same period 2015
CentOS Linux
England / North West
Rank 113 149 137
Rank change year-on-year +36 -12  
Contract jobs citing CentOS 17 10 13
As % of all contract IT jobs advertised in the North West 0.65% 0.26% 0.37%
As % of the Operating Systems category 3.63% 1.18% 1.68%
Number of daily rates quoted 13 6 5
Median daily rate £450 £425 £220
Median daily rate % change year-on-year +5.88% +93.18%  
UK excluding London median daily rate £475 £425 £350
% change year-on-year +11.76% +21.42%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £17.50 £8.50 £47.50
% change year-on-year +105.88% -82.10%  

CentOS is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the North West with a requirement for operating system skills.

Contract Operating System Skills
North West
Contract job vacancies with a requirement for operating system skills 468 849 776
As % of all contract IT job vacancies advertised in the North West 18.00% 22.21% 22.11%
Number of daily rates quoted 323 439 371
Median daily rate £365 £375 £363
Median daily rate % change year-on-year -2.66% +3.44%  
90% offered a daily rate of more than £175 £230 £199
10% offered a daily rate of more than £525 £500 £513
UK excluding London median daily rate £388 £363 £338
% change year-on-year +6.89% +7.40%  
Number of hourly rates quoted 44 68 89
Median hourly rate £16.00 £16.00 £13.87
Median hourly rate % change year-on-year - +15.35%  
90% offered a hourly rate of more than £12.50 £12.00 £10.25
10% offered a hourly rate of more than £42.50 £40.00 £30.00
UK excluding London median hourly rate £15.25 £16.50 £15.50
% change year-on-year -7.57% +6.45%  

CentOS
Job Vacancy Trend in the North West

The job posting trend of jobs advertised in the North West citing CentOS as a proportion of all contract or permanent IT jobs with a match in the Operating Systems category.

Job vacancy trend for CentOS in the North West

CentOS
Contractor Daily Rate Trend in the North West

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing CentOS in the North West.

Contractor daily rate trend for CentOS in the North West

CentOS
Contractor Daily Rate Histogram in the North West

The daily rate distribution of IT jobs citing CentOS in the North West over the 3 months to 24 March 2017.

Contractor daily rate histogram for CentOS in the North West

CentOS
Contract Job Locations in the North West

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the North West region over the 3 months to 24 March 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
Manchester +11 8 £400 -5.88% 5
Merseyside +5 5 £488 +14.70%
CentOS
England

CentOS
Top 30 Related IT Skills in the North West

For the 6 months to 24 March 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 North West region with a requirement for CentOS.

1 40 (100.00%) Linux
2 35 (87.50%) Puppet
3 33 (82.50%) DevOps
4 31 (77.50%) Jenkins
5 26 (65.00%) Red Hat
6 25 (62.50%) Amazon AWS
7 24 (60.00%) Red Hat Enterprise Linux
8 22 (55.00%) Continuous Integration
9 20 (50.00%) Agile Software Development
9 20 (50.00%) Java
10 19 (47.50%) Configuration Management
11 18 (45.00%) Ruby
12 17 (42.50%) Python
12 17 (42.50%) Ansible
13 16 (40.00%) Git (software)
14 15 (37.50%) Opscode Chef
15 14 (35.00%) Bash Shell
16 12 (30.00%) SSL
17 11 (27.50%) Security Cleared
18 9 (22.50%) Subversion
18 9 (22.50%) Fedora
18 9 (22.50%) TCP/IP
18 9 (22.50%) Docker
19 8 (20.00%) Kibana
19 8 (20.00%) Graphite
19 8 (20.00%) Riemann
19 8 (20.00%) Travis CI
19 8 (20.00%) GoCD
19 8 (20.00%) HTTPS
19 8 (20.00%) Nagios

CentOS
Top Related IT Skills in the North West 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 8 (20.00%) OpenStack
2 4 (10.00%) nginx
2 4 (10.00%) Tomcat
3 3 (7.50%) Apache
3 3 (7.50%) Confluence
3 3 (7.50%) SAS
4 2 (5.00%) IIS
5 1 (2.50%) Elasticsearch
5 1 (2.50%) Jetty
5 1 (2.50%) WebSphere
5 1 (2.50%) WebSphere Application Server
Cloud Services
1 25 (62.50%) Amazon AWS
2 8 (20.00%) Amazon EC2
3 7 (17.50%) Amazon S3
3 7 (17.50%) AWS CloudFormation
4 4 (10.00%) Amazon ELB
4 4 (10.00%) Route 53
4 4 (10.00%) Virtual Private Cloud
5 3 (7.50%) Amazon CloudWatch
5 3 (7.50%) Amazon ElastiCache
5 3 (7.50%) AWS Lambda
5 3 (7.50%) CloudFront
6 1 (2.50%) IaaS
6 1 (2.50%) Microsoft Azure
6 1 (2.50%) PaaS
Communications & Networking
1 12 (30.00%) SSL
2 9 (22.50%) TCP/IP
3 8 (20.00%) HTTPS
4 6 (15.00%) Firewall
5 5 (12.50%) DHCP
5 5 (12.50%) DNS
6 4 (10.00%) Network Security
7 3 (7.50%) SMTP
7 3 (7.50%) VPN
8 2 (5.00%) HTTP
9 1 (2.50%) Internet
9 1 (2.50%) Kerberos
Database & Business Intelligence
1 5 (12.50%) SQL Server
2 4 (10.00%) Amazon RDS
2 4 (10.00%) Redis
3 3 (7.50%) Big Data
4 2 (5.00%) MySQL
5 1 (2.50%) DB2
5 1 (2.50%) Hadoop
5 1 (2.50%) Oracle Database
5 1 (2.50%) Oracle Database 12c
5 1 (2.50%) SQL Server 2008
5 1 (2.50%) SQL Server 2012
5 1 (2.50%) SQL Server Reporting Services
Development Applications
1 31 (77.50%) Jenkins
2 16 (40.00%) Git (software)
3 9 (22.50%) Subversion
4 8 (20.00%) GoCD
4 8 (20.00%) Travis CI
5 4 (10.00%) Atlassian Bamboo
5 4 (10.00%) GitLab
5 4 (10.00%) JIRA
5 4 (10.00%) Maven
5 4 (10.00%) Vagrant
6 3 (7.50%) Sonatype Nexus
7 1 (2.50%) Hudson
7 1 (2.50%) MSBuild
7 1 (2.50%) Octopus Deploy
7 1 (2.50%) Team Foundation Server
7 1 (2.50%) TeamCity
General
1 1 (2.50%) Finance
1 1 (2.50%) Retail
Job Titles
1 26 (65.00%) DevOps Engineer
2 5 (12.50%) AWS DevOps
3 4 (10.00%) Consultant
3 4 (10.00%) DevOps Consultant
4 3 (7.50%) AWS Consultant
4 3 (7.50%) AWS Engineer
4 3 (7.50%) Linux/Unix DevOps
5 2 (5.00%) Cloud Engineer
5 2 (5.00%) Linux DevOps Engineer
5 2 (5.00%) Linux Engineer
6 1 (2.50%) 3rd Line Support
6 1 (2.50%) 3rd Line Support Engineer
6 1 (2.50%) Administrator
6 1 (2.50%) Applications Specialist
6 1 (2.50%) DBA
6 1 (2.50%) LAMP Developer
6 1 (2.50%) Linux Specialist
6 1 (2.50%) Oracle DBA
6 1 (2.50%) Support Engineer
6 1 (2.50%) WebSphere Application Server Administrator
Libraries, Frameworks & Software Standards
1 4 (10.00%) MCollective
1 4 (10.00%) RabbitMQ
1 4 (10.00%) Web Services
2 3 (7.50%) Elastic Stack
2 3 (7.50%) Software Packaging
3 2 (5.00%) .NET
3 2 (5.00%) LAMP
4 1 (2.50%) ASP.NET
4 1 (2.50%) Java EE
4 1 (2.50%) SOAP
Miscellaneous
1 3 (7.50%) Linux Command Line
1 3 (7.50%) PKI
1 3 (7.50%) Public Cloud
2 1 (2.50%) Clustering
2 1 (2.50%) Oracle Licensing
2 1 (2.50%) Replication
Operating Systems
1 40 (100.00%) Linux
2 24 (60.00%) Red Hat Enterprise Linux
3 9 (22.50%) Fedora
4 7 (17.50%) Ubuntu
5 1 (2.50%) Debian
5 1 (2.50%) Windows
Processes & Methodologies
1 33 (82.50%) DevOps
2 22 (55.00%) Continuous Integration
3 20 (50.00%) Agile Software Development
4 19 (47.50%) Configuration Management
5 7 (17.50%) Load Balancing
6 5 (12.50%) Scrum
7 4 (10.00%) Automated Testing
7 4 (10.00%) Build Automation
8 3 (7.50%) Auto-Scaling
8 3 (7.50%) Continuous Deployment
8 3 (7.50%) Mentoring
9 2 (5.00%) E-Commerce
9 2 (5.00%) ETL
9 2 (5.00%) Open Source
10 1 (2.50%) Change Management
10 1 (2.50%) ITIL
10 1 (2.50%) ITSM
10 1 (2.50%) OO
10 1 (2.50%) OOP
10 1 (2.50%) Service Management
Programming Languages
1 20 (50.00%) Java
2 18 (45.00%) Ruby
3 17 (42.50%) Python
4 14 (35.00%) Bash Shell
5 6 (15.00%) SQL
6 5 (12.50%) PHP
7 2 (5.00%) Perl
8 1 (2.50%) C++
8 1 (2.50%) JavaScript
8 1 (2.50%) Jython
8 1 (2.50%) Korn
8 1 (2.50%) PL/SQL
8 1 (2.50%) PowerShell
8 1 (2.50%) R
8 1 (2.50%) T-SQL
8 1 (2.50%) VB.NET
Qualifications
1 11 (27.50%) Security Cleared
2 8 (20.00%) SC Cleared
3 1 (2.50%) CESG Certified Professional
3 1 (2.50%) Citrix Certification
3 1 (2.50%) Degree
3 1 (2.50%) MCSE
3 1 (2.50%) Microsoft Certification
3 1 (2.50%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 4 (10.00%) QA
2 1 (2.50%) PCI DSS
System Software
1 9 (22.50%) Docker
2 5 (12.50%) VMware Infrastructure
3 3 (7.50%) Active Directory
4 1 (2.50%) MetaFrame
Systems Management
1 35 (87.50%) Puppet
2 17 (42.50%) Ansible
3 15 (37.50%) Opscode Chef
4 8 (20.00%) Ganglia
4 8 (20.00%) Graphite
4 8 (20.00%) Kibana
4 8 (20.00%) Nagios
4 8 (20.00%) Riemann
5 5 (12.50%) Kubernetes
6 4 (10.00%) Terraform
6 4 (10.00%) ZABBIX
7 3 (7.50%) Packer
7 3 (7.50%) Rsyslog
8 1 (2.50%) FreeIPA
Vendors
1 26 (65.00%) Red Hat
2 5 (12.50%) VMware
3 4 (10.00%) RightScale
3 4 (10.00%) SaltStack
4 3 (7.50%) New Relic
5 2 (5.00%) Microsoft
5 2 (5.00%) Oracle
6 1 (2.50%) Citrix
6 1 (2.50%) Hortonworks
6 1 (2.50%) Pega
6 1 (2.50%) Splunk