The following table provides summary statistics for contract job vacancies advertised in Cambridge 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 29 April 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.

CentOS Linux
Cambridgeshire / Cambridge
3 months to
29 Apr 2017
Same period 2016 Same period 2015
Rank 40 46 40
Rank change year-on-year +6 -6  
Contract jobs citing CentOS 3 1 2
As % of all contract IT jobs advertised in Cambridge 0.94% 0.26% 0.56%
As % of the Operating Systems category 4.76% 0.69% 1.79%
Number of daily rates quoted 2 0 0
Median daily rate £363 - -
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 -
% change year-on-year +105.88% -  

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 Cambridge with a requirement for operating system skills.

Contract Operating System Skills
Cambridge
Contract job vacancies with a requirement for operating system skills 63 145 112
As % of all contract IT job vacancies advertised in Cambridge 19.75% 37.08% 31.37%
Number of daily rates quoted 23 83 68
Median daily rate £275 £343 £325
Median daily rate % change year-on-year -19.70% +5.38%  
90% offered a daily rate of more than £125 £172 £203
10% offered a daily rate of more than £465 £505 £416
UK excluding London median daily rate £388 £363 £338
% change year-on-year +6.89% +7.40%  
Number of hourly rates quoted 21 19 16
Median hourly rate £19.00 £17.50 £17.00
Median hourly rate % change year-on-year +8.57% +2.94%  
90% offered a hourly rate of more than £13.00 £17.25 £13.10
10% offered a hourly rate of more than £41.00 £50.50 £43.00
UK excluding London median hourly rate £15.50 £17.00 £15.85
% change year-on-year -8.82% +7.25%  

CentOS
Job Vacancy Trend in Cambridge

The job posting trend of jobs advertised in Cambridge 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 Cambridge

CentOS
Contractor Daily Rate Trend in Cambridge

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

Contractor daily rate trend for CentOS in Cambridge

CentOS
Contractor Daily Rate Histogram in Cambridge

The daily rate distribution of IT jobs citing CentOS in Cambridge over the 3 months to 29 April 2017.

Contractor daily rate histogram for CentOS in Cambridge

CentOS
Contractor Hourly Rate Trend in Cambridge

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

Contractor hourly rate trend for CentOS in Cambridge

For the 6 months to 29 April 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 Cambridge region with a requirement for CentOS.

1 4 (100.00%) Linux
2 2 (50.00%) Java
2 2 (50.00%) Jenkins
2 2 (50.00%) Red Hat Enterprise Linux
2 2 (50.00%) Red Hat
2 2 (50.00%) Ubuntu
2 2 (50.00%) DevOps
2 2 (50.00%) Ansible
3 1 (25.00%) Pingdom
3 1 (25.00%) AppDynamics
3 1 (25.00%) PagerDuty
3 1 (25.00%) AWS CloudFormation
3 1 (25.00%) Application Performance Management
3 1 (25.00%) AWS Lambda
3 1 (25.00%) Windows Server
3 1 (25.00%) WebSphere
3 1 (25.00%) JIRA
3 1 (25.00%) Atlassian
3 1 (25.00%) Continuous Integration
3 1 (25.00%) Performance Management
3 1 (25.00%) SC Cleared
3 1 (25.00%) Security Cleared
3 1 (25.00%) Windows Server 2008
3 1 (25.00%) Configuration Management
3 1 (25.00%) VMware
3 1 (25.00%) Software Engineering
3 1 (25.00%) Git (software)
3 1 (25.00%) Hadoop
3 1 (25.00%) Amazon AWS
3 1 (25.00%) Confluence

CentOS
Co-occurring IT Skills in Cambridge 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 1 (25.00%) Confluence
1 1 (25.00%) WebSphere
Cloud Services
1 1 (25.00%) Amazon AWS
1 1 (25.00%) AWS CloudFormation
1 1 (25.00%) AWS Lambda
Database & Business Intelligence
1 1 (25.00%) Amazon DynamoDB
1 1 (25.00%) Big Data
1 1 (25.00%) Hadoop
Development Applications
1 2 (50.00%) Jenkins
2 1 (25.00%) Bitbucket
2 1 (25.00%) Git (software)
2 1 (25.00%) Hudson
2 1 (25.00%) JIRA
Job Titles
1 1 (25.00%) 3rd Line Engineer
1 1 (25.00%) Administrator
1 1 (25.00%) DevOps Administrator
1 1 (25.00%) DevOps Engineer
1 1 (25.00%) Linux Administrator
1 1 (25.00%) Linux DevOps Administrator
1 1 (25.00%) Linux Engineer
1 1 (25.00%) Linux Systems Administrator
1 1 (25.00%) Linux/Unix DevOps
1 1 (25.00%) Software Engineer
1 1 (25.00%) Systems Administrator
1 1 (25.00%) VMware Engineer
1 1 (25.00%) Windows Engineer
Libraries, Frameworks & Software Standards
1 1 (25.00%) RabbitMQ
1 1 (25.00%) ZeroMQ
Operating Systems
1 4 (100.00%) Linux
2 2 (50.00%) Red Hat Enterprise Linux
2 2 (50.00%) Ubuntu
3 1 (25.00%) Windows
3 1 (25.00%) Windows Server
3 1 (25.00%) Windows Server 2008
3 1 (25.00%) Windows Server 2012
Processes & Methodologies
1 2 (50.00%) DevOps
2 1 (25.00%) Application Performance Management
2 1 (25.00%) Configuration Management
2 1 (25.00%) Continuous Integration
2 1 (25.00%) Performance Management
2 1 (25.00%) Software Engineering
Programming Languages
1 2 (50.00%) Java
2 1 (25.00%) Python
Qualifications
1 1 (25.00%) SC Cleared
1 1 (25.00%) Security Cleared
Systems Management
1 2 (50.00%) Ansible
2 1 (25.00%) Opscode Chef
2 1 (25.00%) Pingdom
2 1 (25.00%) Puppet
Vendors
1 2 (50.00%) Red Hat
2 1 (25.00%) AppDynamics
2 1 (25.00%) Atlassian
2 1 (25.00%) PagerDuty
2 1 (25.00%) VMware
Cambridge, Cambridgeshire
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