Period
to 22 July 2017

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 6 months to 22 July 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
6 months to
22 Jul 2017
Same period 2016 Same period 2015
Rank 51 67 72
Rank change year-on-year +16 +5 -4
Contract jobs citing CentOS 9 4 4
As % of all contract IT jobs advertised in Cambridge 1.43% 0.51% 0.48%
As % of the Operating Systems category 5.84% 1.69% 1.50%
Number of daily rates quoted 3 2 1
Cambridge median daily rate £275 £413 £190
Median daily rate % change year-on-year -33.33% +117.11% -52.50%
10th Percentile £223 £339 £185
90th Percentile £438 £476 £195
Cambridgeshire median daily rate £275 £475 £190
% change year-on-year -42.11% +150.00% -52.50%
Number of hourly rates quoted 0 0 0
Cambridge median hourly rate - - -
Cambridgeshire median hourly rate - - -

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 154 236 267
As % of all contract IT job vacancies advertised in Cambridge 24.41% 30.33% 31.82%
Number of daily rates quoted 60 133 181
Cambridge median daily rate £296 £388 £350
Median daily rate % change year-on-year -23.55% +10.71% -
10th Percentile £142 £231 £225
90th Percentile £428 £538 £425
Cambridgeshire median daily rate £350 £400 £350
% change year-on-year -12.50% +14.29% +9.38%
Number of hourly rates quoted 46 21 22
Cambridge median hourly rate £37.50 £37.50 £18.00
Median hourly rate % change year-on-year - +108.33% -31.43%
10th Percentile £14.02 £17.13 £11.45
90th Percentile £47.50 £48.75 £44.28
Cambridgeshire median hourly rate £25.00 £31.00 £14.00
% change year-on-year -19.35% +121.43% -25.33%

CentOS
Job Vacancy Trend in Cambridge

Job postings citing CentOS as a percentage of all IT jobs advertised in Cambridge.

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 6 months to 22 July 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 22 July 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 9 (100.00%) Linux
2 7 (77.78%) Red Hat Enterprise Linux
3 6 (66.67%) SC Cleared
3 6 (66.67%) Security Cleared
3 6 (66.67%) VMware
3 6 (66.67%) Red Hat
4 5 (55.56%) Cisco
5 3 (33.33%) Active Directory
5 3 (33.33%) Unix
6 2 (22.22%) Windows
6 2 (22.22%) Ubuntu
6 2 (22.22%) Java
6 2 (22.22%) Hadoop
6 2 (22.22%) Cloudera
6 2 (22.22%) Apache Spark
6 2 (22.22%) yum
6 2 (22.22%) Terraform
6 2 (22.22%) DevOps
6 2 (22.22%) Virtual Machines
7 1 (11.11%) Task Automation
7 1 (11.11%) Pingdom
7 1 (11.11%) Windows Server
7 1 (11.11%) ZeroMQ
7 1 (11.11%) Ansible
7 1 (11.11%) RabbitMQ
7 1 (11.11%) AppDynamics
7 1 (11.11%) PagerDuty
7 1 (11.11%) AWS CloudFormation
7 1 (11.11%) Application Performance Management
7 1 (11.11%) Packer

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 2 (22.22%) Apache Spark
2 1 (11.11%) Confluence
2 1 (11.11%) WebSphere
Cloud Services
1 1 (11.11%) Amazon AWS
1 1 (11.11%) AWS CloudFormation
1 1 (11.11%) AWS Lambda
Communications & Networking
1 1 (11.11%) DHCP
1 1 (11.11%) DNS
1 1 (11.11%) LDAP
Database & Business Intelligence
1 2 (22.22%) Hadoop
2 1 (11.11%) Amazon DynamoDB
Development Applications
1 1 (11.11%) Bitbucket
1 1 (11.11%) Git (software)
1 1 (11.11%) Jenkins
1 1 (11.11%) JIRA
Job Titles
1 5 (55.56%) Linux Engineer
2 3 (33.33%) Consultant
3 2 (22.22%) DevOps Engineer
3 2 (22.22%) Linux Consultant
4 1 (11.11%) 1st/2nd Line Help Desk Support
4 1 (11.11%) 1st/2nd Line Service Desk Analyst
4 1 (11.11%) 1st/2nd Line Support
4 1 (11.11%) 1st/2nd Line Support Analyst
4 1 (11.11%) 2nd Line Service Desk Analyst
4 1 (11.11%) 2nd Line Support Analyst
4 1 (11.11%) Help Desk Analyst
4 1 (11.11%) Help Desk Support
4 1 (11.11%) Help Desk Support Analyst
4 1 (11.11%) Linux DevOps Engineer
4 1 (11.11%) Linux/Unix DevOps
4 1 (11.11%) Service Desk Analyst
4 1 (11.11%) Unix Consultant
4 1 (11.11%) Unix Engineer
4 1 (11.11%) VMware Engineer
4 1 (11.11%) Windows Engineer
Libraries, Frameworks & Software Standards
1 1 (11.11%) RabbitMQ
1 1 (11.11%) ZeroMQ
Operating Systems
1 9 (100.00%) Linux
2 7 (77.78%) Red Hat Enterprise Linux
3 3 (33.33%) Unix
4 2 (22.22%) Ubuntu
4 2 (22.22%) Windows
5 1 (11.11%) Windows 7
5 1 (11.11%) Windows Server
5 1 (11.11%) Windows Server 2008
5 1 (11.11%) Windows Server 2012
Processes & Methodologies
1 2 (22.22%) DevOps
2 1 (11.11%) Application Performance Management
2 1 (11.11%) Configuration Management
2 1 (11.11%) Continuous Integration
2 1 (11.11%) Performance Management
2 1 (11.11%) Service Delivery
2 1 (11.11%) Software Engineering
2 1 (11.11%) Task Automation
Programming Languages
1 2 (22.22%) Java
2 1 (11.11%) Python
Qualifications
1 6 (66.67%) SC Cleared
1 6 (66.67%) Security Cleared
Quality Assurance & Compliance
1 1 (11.11%) SLA
System Software
1 3 (33.33%) Active Directory
2 2 (22.22%) Virtual Machines
Systems Management
1 2 (22.22%) Terraform
1 2 (22.22%) yum
2 1 (11.11%) Ansible
2 1 (11.11%) Packer
2 1 (11.11%) Pingdom
Vendors
1 6 (66.67%) Red Hat
1 6 (66.67%) VMware
2 5 (55.56%) Cisco
3 2 (22.22%) Cloudera
4 1 (11.11%) AppDynamics
4 1 (11.11%) Atlassian
4 1 (11.11%) PagerDuty