Period
to 17 November 2017

The following table provides summary statistics for contract job vacancies advertised in the South 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 6 months to 17 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 > South West
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 153 176 202
Rank change year-on-year +23 +26 -106
Contract jobs citing CentOS 49 29 23
As % of all contract IT jobs advertised in the South West 0.87% 0.50% 0.35%
As % of the Operating Systems category 4.62% 2.31% 1.65%
Number of daily rates quoted 35 21 14
South West median daily rate £400 £450 £406
Median daily rate % change year-on-year -11.11% +10.77% +1.56%
10th Percentile £304 £198 £313
90th Percentile £598 £538 £500
England median daily rate £460 £463 £425
% change year-on-year -0.49% +8.82% +6.25%
Number of hourly rates quoted 6 0 0
South West median hourly rate £47.50 - -
England median hourly rate £35.00 £14.75 £38.00
% change year-on-year +137.29% -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 the South West with a requirement for operating system skills.

All Operating Systems
South West
Contract vacancies with a requirement for operating system skills 1060 1257 1393
As % of all contract IT jobs advertised in the South West 18.72% 21.62% 21.05%
Number of daily rates quoted 633 742 788
South West median daily rate £350 £350 £370
Median daily rate % change year-on-year - -5.41% +5.71%
10th Percentile £148 £135 £150
90th Percentile £513 £550 £500
England median daily rate £425 £410 £400
% change year-on-year +3.66% +2.50% +6.67%
Number of hourly rates quoted 93 120 166
South West median hourly rate £17.50 £15.26 £17.50
Median hourly rate % change year-on-year +14.72% -12.83% +4.82%
10th Percentile £10.87 £10.73 £11.17
90th Percentile £44.75 £43.30 £42.86
England median hourly rate £17.50 £16.50 £16.50
% change year-on-year +6.06% - +6.45%

CentOS
Job Vacancy Trend in the South West

Job postings citing CentOS as a percentage of all IT jobs advertised in the South West.

Job vacancy trend for CentOS in the South West

CentOS
Contractor Daily Rate Trend in the South West

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

Contractor daily rate trend for CentOS in the South West

CentOS
Contractor Daily Rate Histogram in the South West

The daily rate distribution of IT jobs citing CentOS in the South West over the 6 months to 17 November 2017.

Contractor daily rate histogram for CentOS in the South West

CentOS
Contractor Hourly Rate Trend in the South West

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

Contractor hourly rate trend for CentOS in the South West

CentOS
Contractor Hourly Rate Histogram in the South West

The hourly rate distribution of IT jobs citing CentOS in the South West over the 6 months to 17 November 2017.

Contractor hourly rate histogram for CentOS in the South West

CentOS
Contract Job Locations in the South 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 South West region over the 6 months to 17 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
Bristol +9 17 £325 +51.16% 4
Somerset +3 13 £550 +22.22%
Devon - 13 £447 -
Wiltshire -19 4 £415 -7.78% 1
CentOS
England

For the 6 months to 17 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 South West region with a requirement for CentOS.

1 49 (100.00%) Linux
2 30 (61.22%) Red Hat Enterprise Linux
3 29 (59.18%) Red Hat
4 25 (51.02%) Agile Software Development
4 25 (51.02%) Jenkins
5 22 (44.90%) Git (software)
6 21 (42.86%) Python
7 17 (34.69%) Java
8 16 (32.65%) Tomcat
8 16 (32.65%) Test Automation
9 15 (30.61%) Unix
9 15 (30.61%) Subversion
10 14 (28.57%) Security Cleared
10 14 (28.57%) Windows
10 14 (28.57%) Active Directory
11 13 (26.53%) IBM
11 13 (26.53%) EJB
11 13 (26.53%) Struts
11 13 (26.53%) XML
11 13 (26.53%) DB2
11 13 (26.53%) JavaScript
11 13 (26.53%) JBoss
11 13 (26.53%) WebSphere
11 13 (26.53%) Java EE
11 13 (26.53%) Samba
11 13 (26.53%) Docker
11 13 (26.53%) Continuous Deployment
12 12 (24.49%) DevOps
12 12 (24.49%) Microsoft
13 11 (22.45%) SC Cleared

CentOS
Co-occurring IT Skills in the South 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 16 (32.65%) Tomcat
2 13 (26.53%) JBoss
2 13 (26.53%) WebSphere
3 7 (14.29%) nginx
4 6 (12.24%) ArcGIS
5 4 (8.16%) Exchange Server 2010
5 4 (8.16%) Exchange Server 2013
5 4 (8.16%) MS Exchange
5 4 (8.16%) SharePoint
5 4 (8.16%) SharePoint 2010
5 4 (8.16%) SharePoint 2013
6 3 (6.12%) Alfresco
6 3 (6.12%) Apache
6 3 (6.12%) Apache Spark
6 3 (6.12%) Mule
7 1 (2.04%) Confluence
Applications
1 8 (16.33%) Houdini
1 8 (16.33%) Maya
1 8 (16.33%) NUKE
1 8 (16.33%) Photoshop
Cloud Services
1 10 (20.41%) Amazon AWS
2 5 (10.20%) Microsoft Azure
3 4 (8.16%) Office 365
4 2 (4.08%) Amazon EC2
4 2 (4.08%) Amazon S3
4 2 (4.08%) Route 53
5 1 (2.04%) Amazon ElastiCache
5 1 (2.04%) Amazon ELB
5 1 (2.04%) AWS CloudFormation
5 1 (2.04%) AWS Elastic Beanstalk
5 1 (2.04%) AWS Lambda
5 1 (2.04%) Azure Active Directory
5 1 (2.04%) IaaS
5 1 (2.04%) OpenShift
5 1 (2.04%) PaaS
5 1 (2.04%) Serverless
5 1 (2.04%) Virtual Private Cloud
Communications & Networking
1 10 (20.41%) LAN
1 10 (20.41%) WAN
2 5 (10.20%) DHCP
3 4 (8.16%) DNS
3 4 (8.16%) Extranet
3 4 (8.16%) Intranet
4 3 (6.12%) HTTP
4 3 (6.12%) VPN
5 2 (4.08%) Firewall
5 2 (4.08%) SMS
6 1 (2.04%) Network Security
6 1 (2.04%) SSL
6 1 (2.04%) TCP/IP
6 1 (2.04%) VLAN
Database & Business Intelligence
1 13 (26.53%) DB2
2 10 (20.41%) Hadoop
3 7 (14.29%) Apache Hive
3 7 (14.29%) Big Data
3 7 (14.29%) GIS
3 7 (14.29%) MySQL
4 6 (12.24%) SQL Server
5 4 (8.16%) SQL Server 2008
5 4 (8.16%) SQL Server 2012
6 3 (6.12%) MongoDB
6 3 (6.12%) PostgreSQL
7 2 (4.08%) Neo4j
7 2 (4.08%) Relational Database
8 1 (2.04%) Amazon DynamoDB
8 1 (2.04%) Amazon RDS
8 1 (2.04%) Apache Cassandra
8 1 (2.04%) Azure SQL Database
8 1 (2.04%) NoSQL
Development Applications
1 25 (51.02%) Jenkins
2 22 (44.90%) Git (software)
3 15 (30.61%) Subversion
4 8 (16.33%) Sonatype Nexus
5 7 (14.29%) Maven
5 7 (14.29%) Team Foundation Server
6 4 (8.16%) Atlassian Bamboo
7 1 (2.04%) Artifactory
7 1 (2.04%) JIRA
7 1 (2.04%) SonarQube
7 1 (2.04%) Vagrant
General
1 2 (4.08%) Electronics
1 2 (4.08%) Finance
1 2 (4.08%) Manufacturing
1 2 (4.08%) Marketing
1 2 (4.08%) Telecoms
Job Titles
1 17 (34.69%) Developer
2 13 (26.53%) Administrator
2 13 (26.53%) Java Developer
3 11 (22.45%) Linux Administrator
3 11 (22.45%) Systems Administrator
4 10 (20.41%) Linux Systems Administrator
5 8 (16.33%) Consultant
6 7 (14.29%) Security Consultant
7 4 (8.16%) AWS DevOps
7 4 (8.16%) Cybersecurity Consultant
7 4 (8.16%) Python Developer
7 4 (8.16%) SharePoint Engineer
8 3 (6.12%) Linux/Unix DevOps
8 3 (6.12%) Security Technical Consultant
8 3 (6.12%) Technical Assurance Consultant
8 3 (6.12%) Technical Consultant
8 3 (6.12%) Technical Security Consultant
9 2 (4.08%) AWS Engineer
9 2 (4.08%) DevOps Engineer
10 1 (2.04%) Solaris Engineer
Libraries, Frameworks & Software Standards
1 13 (26.53%) EJB
1 13 (26.53%) Java EE
1 13 (26.53%) Struts
1 13 (26.53%) XML
2 5 (10.20%) ModSecurity
3 4 (8.16%) Elastic Stack
3 4 (8.16%) NumPy
3 4 (8.16%) Pandas
3 4 (8.16%) SciPy
4 3 (6.12%) Keras
5 2 (4.08%) Dropwizard
5 2 (4.08%) Hibernate
5 2 (4.08%) HTML
5 2 (4.08%) JAX-RS
5 2 (4.08%) LAMP
5 2 (4.08%) LAPP Stack
5 2 (4.08%) REST
6 1 (2.04%) .NET
6 1 (2.04%) JSON
Miscellaneous
1 9 (18.37%) Linux Command Line
2 7 (14.29%) Animation
3 4 (8.16%) RIA
4 3 (6.12%) Algorithms
5 1 (2.04%) CESG
5 1 (2.04%) Computer Science
5 1 (2.04%) Public Cloud
Operating Systems
1 49 (100.00%) Linux
2 30 (61.22%) Red Hat Enterprise Linux
3 15 (30.61%) Unix
4 14 (28.57%) Windows
5 9 (18.37%) Windows 7
5 9 (18.37%) Windows Server
6 8 (16.33%) Ubuntu
7 4 (8.16%) Windows Server 2003
7 4 (8.16%) Windows Server 2008
7 4 (8.16%) Windows Server 2012
8 3 (6.12%) Debian
9 2 (4.08%) Mac OS X
9 2 (4.08%) Solaris
9 2 (4.08%) VMS
10 1 (2.04%) CoreOS
10 1 (2.04%) FreeBSD
10 1 (2.04%) Oracle Linux
Processes & Methodologies
1 25 (51.02%) Agile Software Development
2 16 (32.65%) Test Automation
3 13 (26.53%) Continuous Deployment
4 12 (24.49%) DevOps
5 7 (14.29%) Configuration Management
5 7 (14.29%) Information Management
5 7 (14.29%) OWASP
5 7 (14.29%) SIEM
5 7 (14.29%) Visual Effects
5 7 (14.29%) Vulnerability Management
6 6 (12.24%) Cybersecurity
6 6 (12.24%) Migration
7 4 (8.16%) Continuous Delivery
7 4 (8.16%) Image Processing
7 4 (8.16%) Refactoring
7 4 (8.16%) Scrum
7 4 (8.16%) Technical Architecture
7 4 (8.16%) Test Management
7 4 (8.16%) Unit Testing
7 4 (8.16%) Web Development
Programming Languages
1 21 (42.86%) Python
2 17 (34.69%) Java
3 13 (26.53%) JavaScript
4 9 (18.37%) Shell Script
4 9 (18.37%) SQL
5 7 (14.29%) Bash Shell
5 7 (14.29%) Dart
6 6 (12.24%) Perl
7 5 (10.20%) PowerShell
8 4 (8.16%) PHP
9 3 (6.12%) Groovy
9 3 (6.12%) Scala
10 2 (4.08%) Ruby
11 1 (2.04%) C#
11 1 (2.04%) PL/SQL
Qualifications
1 14 (28.57%) Security Cleared
2 11 (22.45%) SC Cleared
3 8 (16.33%) CESG Certified Professional
4 7 (14.29%) CLAS
5 5 (10.20%) CISSP
6 4 (8.16%) BPSS Clearance
7 1 (2.04%) AWS Certification
7 1 (2.04%) DV Cleared
Quality Assurance & Compliance
1 6 (12.24%) JSP 440
2 4 (8.16%) Disclosure Scotland
3 1 (2.04%) ISO/IEC 27001
3 1 (2.04%) PCI DSS
System Software
1 14 (28.57%) Active Directory
2 13 (26.53%) Docker
2 13 (26.53%) Samba
3 9 (18.37%) NFS
4 6 (12.24%) Hyper-V
5 4 (8.16%) Squid
6 2 (4.08%) Firmware
6 2 (4.08%) VMware Infrastructure
6 2 (4.08%) vSphere
6 2 (4.08%) Xen
7 1 (2.04%) GlusterFS
7 1 (2.04%) VirtualBox
7 1 (2.04%) VMware ESXi
Systems Management
1 8 (16.33%) Ansible
1 8 (16.33%) Puppet
2 5 (10.20%) Nagios
3 4 (8.16%) Webmin
3 4 (8.16%) Xymon
4 2 (4.08%) Bcfg2
4 2 (4.08%) Terraform
5 1 (2.04%) Kubernetes
5 1 (2.04%) Nessus
5 1 (2.04%) Nexpose
5 1 (2.04%) Opscode Chef
5 1 (2.04%) OSSEC
5 1 (2.04%) Red Hat Satellite
Vendors
1 29 (59.18%) Red Hat
2 13 (26.53%) IBM
3 12 (24.49%) Microsoft
4 6 (12.24%) Cloudera
4 6 (12.24%) ESRI
4 6 (12.24%) VMware
5 4 (8.16%) Citrix
5 4 (8.16%) Veeam
6 3 (6.12%) Oracle
7 2 (4.08%) SAP
8 1 (2.04%) New Relic
8 1 (2.04%) Rapid7