Period
to 19 November 2017

The following table provides summary statistics for contract job vacancies advertised in Yorkshire 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 19 November 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
England > Yorkshire
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 164 150 162
Rank change year-on-year -14 +12 -34
Contract jobs citing CentOS 24 60 59
As % of all contract IT jobs advertised in Yorkshire 0.55% 1.10% 0.95%
As % of the Operating Systems category 2.81% 5.23% 4.30%
Number of daily rates quoted 21 54 35
Yorkshire median daily rate £450 £425 £300
Median daily rate % change year-on-year +5.88% +41.67% +33.33%
10th Percentile £410 £213 £263
90th Percentile £525 £565 £512
England median daily rate £458 £463 £425
% change year-on-year -1.08% +8.82% +6.25%
Number of hourly rates quoted 0 0 0
Yorkshire median hourly rate - - -
England median hourly rate £32.88 £14.75 £38.00
% change year-on-year +122.88% -61.18% +125.19%

CentOS is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Yorkshire with a requirement for operating system skills.

All Operating Systems
Yorkshire
Contract vacancies with a requirement for operating system skills 855 1147 1373
As % of all contract IT jobs advertised in Yorkshire 19.66% 21.08% 22.20%
Number of daily rates quoted 538 729 757
Yorkshire median daily rate £420 £400 £375
Median daily rate % change year-on-year +5.00% +6.67% +17.19%
10th Percentile £130 £206 £164
90th Percentile £540 £550 £515
England median daily rate £425 £410 £400
% change year-on-year +3.66% +2.50% +6.67%
Number of hourly rates quoted 67 79 173
Yorkshire median hourly rate £13.00 £14.48 £12.50
Median hourly rate % change year-on-year -10.22% +15.84% -5.30%
10th Percentile £9.92 £10.00 £9.00
90th Percentile £22.05 £25.50 £24.75
England median hourly rate £17.50 £16.50 £16.50
% change year-on-year +6.06% - +6.45%

CentOS
Job Vacancy Trend in Yorkshire

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

Job vacancy trend for CentOS in Yorkshire

CentOS
Contractor Daily Rate Trend in Yorkshire

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

Contractor daily rate trend for CentOS in Yorkshire

CentOS
Contractor Daily Rate Histogram in Yorkshire

The daily rate distribution of IT jobs citing CentOS in Yorkshire over the 6 months to 19 November 2017.

Contractor daily rate histogram for CentOS in Yorkshire

CentOS
Contractor Hourly Rate Trend in Yorkshire

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

Contractor hourly rate trend for CentOS in Yorkshire

CentOS
Contract Job Locations in Yorkshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the Yorkshire region over the 6 months to 19 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
West Yorkshire -11 17 £425 -1.45% 2
South Yorkshire +20 4 £365 +19.67% 2
North Yorkshire +7 3 £500 +48.15% 1
CentOS
England

For the 6 months to 19 November 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 Yorkshire region with a requirement for CentOS.

1 24 (100.00%) Linux
2 16 (66.67%) DevOps
3 15 (62.50%) Red Hat
4 12 (50.00%) Amazon AWS
5 11 (45.83%) Puppet
5 11 (45.83%) Bash Shell
5 11 (45.83%) Configuration Management
6 10 (41.67%) Agile Software Development
6 10 (41.67%) Nagios
6 10 (41.67%) Python
6 10 (41.67%) Ruby
6 10 (41.67%) Jenkins
6 10 (41.67%) Opscode Chef
7 9 (37.50%) Graphite
8 7 (29.17%) Ubuntu
8 7 (29.17%) Red Hat Enterprise Linux
8 7 (29.17%) Opsview
8 7 (29.17%) Terraform
9 6 (25.00%) Kubernetes
9 6 (25.00%) Git (software)
9 6 (25.00%) Node.js
9 6 (25.00%) MongoDB
10 5 (20.83%) DNS
10 5 (20.83%) Grafana
10 5 (20.83%) New Relic
10 5 (20.83%) Ansible
10 5 (20.83%) Elastic Stack
11 4 (16.67%) Docker
11 4 (16.67%) Performance Optimisation
11 4 (16.67%) Cloud Foundry

CentOS
Co-occurring IT Skills in Yorkshire 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 4 (16.67%) Cloud Foundry
2 3 (12.50%) Apache Solr
2 3 (12.50%) Elasticsearch
2 3 (12.50%) nginx
2 3 (12.50%) Tomcat
Cloud Services
1 12 (50.00%) Amazon AWS
2 4 (16.67%) Heroku
2 4 (16.67%) Microsoft Azure
3 3 (12.50%) Amazon SQS
3 3 (12.50%) AWS CloudFormation
Communications & Networking
1 5 (20.83%) DNS
2 4 (16.67%) HTTP
3 2 (8.33%) Network Security
4 1 (4.17%) Firewall
4 1 (4.17%) LDAP
Database & Business Intelligence
1 6 (25.00%) MongoDB
2 3 (12.50%) Apache Cassandra
2 3 (12.50%) NoSQL
2 3 (12.50%) Redis
Development Applications
1 10 (41.67%) Jenkins
2 6 (25.00%) Git (software)
3 3 (12.50%) JMeter
3 3 (12.50%) RSpec
3 3 (12.50%) Sonatype Nexus
3 3 (12.50%) TeamCity
3 3 (12.50%) Vagrant
General
1 4 (16.67%) Finance
2 3 (12.50%) Games
Job Titles
1 12 (50.00%) DevOps Engineer
2 9 (37.50%) Linux Engineer
3 6 (25.00%) AWS Engineer
4 4 (16.67%) Administrator
4 4 (16.67%) Linux Administrator
4 4 (16.67%) Linux DevOps Engineer
4 4 (16.67%) Linux/Unix DevOps
5 3 (12.50%) AWS DevOps
5 3 (12.50%) AWS DevOps Engineer
5 3 (12.50%) Azure DevOps
5 3 (12.50%) Azure DevOps Engineer
5 3 (12.50%) Azure Engineer
6 2 (8.33%) Cloud Engineer
6 2 (8.33%) Linux Scripter
6 2 (8.33%) Nagios Engineer
6 2 (8.33%) Systems Engineer
6 2 (8.33%) WebOps Engineer
7 1 (4.17%) Consultant
7 1 (4.17%) Linux Systems Administrator
7 1 (4.17%) Senior Linux Engineer
Libraries, Frameworks & Software Standards
1 6 (25.00%) Node.js
2 5 (20.83%) Elastic Stack
3 4 (16.67%) Web Services
4 3 (12.50%) LAMP
4 3 (12.50%) Memcached
4 3 (12.50%) RabbitMQ
Miscellaneous
1 2 (8.33%) Private Cloud
Operating Systems
1 24 (100.00%) Linux
2 7 (29.17%) Red Hat Enterprise Linux
2 7 (29.17%) Ubuntu
3 4 (16.67%) Unix
4 3 (12.50%) Fedora
5 1 (4.17%) Solaris
5 1 (4.17%) Windows
5 1 (4.17%) Windows Server
Processes & Methodologies
1 16 (66.67%) DevOps
2 11 (45.83%) Configuration Management
3 10 (41.67%) Agile Software Development
4 4 (16.67%) Performance Optimisation
5 3 (12.50%) Benchmarking
5 3 (12.50%) Continuous Improvement
5 3 (12.50%) Infrastructure Management
5 3 (12.50%) Load Testing
5 3 (12.50%) Mentoring
5 3 (12.50%) Microservices
5 3 (12.50%) Open Source
5 3 (12.50%) Planning Poker
5 3 (12.50%) Security Patching
5 3 (12.50%) Software Engineering
6 2 (8.33%) Web Operations
7 1 (4.17%) Migration
7 1 (4.17%) Scrum
7 1 (4.17%) Stakeholder Management
Programming Languages
1 11 (45.83%) Bash Shell
2 10 (41.67%) Python
2 10 (41.67%) Ruby
3 4 (16.67%) Shell Script
4 3 (12.50%) Java
4 3 (12.50%) JavaScript
4 3 (12.50%) PHP
5 2 (8.33%) Perl
Qualifications
1 1 (4.17%) SC Cleared
1 1 (4.17%) Security Cleared
System Software
1 4 (16.67%) Docker
1 4 (16.67%) VMware ESXi
2 1 (4.17%) KVM
2 1 (4.17%) VMware Infrastructure
Systems Management
1 11 (45.83%) Puppet
2 10 (41.67%) Nagios
2 10 (41.67%) Opscode Chef
3 9 (37.50%) Graphite
4 7 (29.17%) Opsview
4 7 (29.17%) Terraform
5 6 (25.00%) Kubernetes
6 5 (20.83%) Ansible
6 5 (20.83%) Grafana
7 3 (12.50%) Icinga
7 3 (12.50%) Kibana
7 3 (12.50%) logstash
7 3 (12.50%) Packer
7 3 (12.50%) Prometheus
7 3 (12.50%) Rancher
8 1 (4.17%) Red Hat Satellite
8 1 (4.17%) yum
Vendors
1 15 (62.50%) Red Hat
2 5 (20.83%) New Relic
3 4 (16.67%) Splunk
3 4 (16.67%) VMware