Period
to 22 November 2017

The following table provides summary statistics for permanent job vacancies advertised in the South West with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 6 months to 22 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > South West
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 238 257 278
Rank change year-on-year +19 +21 -4
Permanent jobs citing CentOS 90 82 75
As % of all permanent IT jobs advertised in the South West 0.87% 0.75% 0.64%
As % of the Operating Systems category 3.36% 2.87% 2.17%
Number of salaries quoted 75 72 71
South West median annual salary £40,000 £38,750 £42,500
Median salary % change year-on-year +3.23% -8.82% +13.33%
10th Percentile £33,750 £23,000 £31,250
90th Percentile £58,250 £71,625 £71,250
England median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% +5.56%

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

All Operating Systems
South West
Permanent vacancies with a requirement for operating system skills 2679 2860 3455
As % of all permanent IT jobs advertised in the South West 26.02% 26.17% 29.43%
Number of salaries quoted 2210 2479 3035
South West median annual salary £40,000 £35,000 £37,500
Median salary % change year-on-year +14.29% -6.67% +7.14%
10th Percentile £22,750 £21,500 £21,500
90th Percentile £60,000 £57,500 £61,250
England median annual salary £45,000 £45,000 £45,000

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
Salary Trend in the South West

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS in the South West.

Salary trend for CentOS in the South West

CentOS
Salary Histogram in the South West

The salary distribution of IT jobs citing CentOS in the South West over the 6 months to 22 November 2017.

Salary histogram for CentOS in the South West

CentOS
Job Locations in the South West

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the South West region over the 6 months to 22 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Bristol -8 28 £40,000 -36.00% 6
Wiltshire +24 27 £40,000 - 1
Gloucestershire +15 19 £42,500 -5.56% 3
Cornwall - 12 £50,000 -
Somerset -26 5 £55,000 +111.54%
Devon +15 1 £35,000 +16.67%
CentOS
England

For the 6 months to 22 November 2017, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the South West region with a requirement for CentOS.

1 90 (100.00%) Linux
2 73 (81.11%) Red Hat
3 44 (48.89%) Red Hat Enterprise Linux
4 40 (44.44%) Puppet
5 38 (42.22%) Python
6 34 (37.78%) VMware
7 32 (35.56%) Active Directory
8 31 (34.44%) DevOps
9 30 (33.33%) Open Source
9 30 (33.33%) Security Cleared
9 30 (33.33%) Windows
10 28 (31.11%) ITIL
11 26 (28.89%) Windows Server
12 25 (27.78%) Ansible
13 24 (26.67%) Cisco
13 24 (26.67%) Configuration Management
13 24 (26.67%) Agile Software Development
14 23 (25.56%) Ubuntu
15 22 (24.44%) Opscode Chef
15 22 (24.44%) DV Cleared
16 21 (23.33%) VMware Infrastructure
16 21 (23.33%) Docker
17 20 (22.22%) Jenkins
17 20 (22.22%) Bash Shell
18 19 (21.11%) Perl
18 19 (21.11%) PHP
19 18 (20.00%) Apache
19 18 (20.00%) Shell Script
19 18 (20.00%) Continuous Integration
19 18 (20.00%) Windows Server 2012

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 18 (20.00%) Apache
2 14 (15.56%) Confluence
3 10 (11.11%) OpenStack
4 7 (7.78%) Cloud Foundry
5 6 (6.67%) IIS
6 2 (2.22%) Exchange Server 2013
6 2 (2.22%) SharePoint
6 2 (2.22%) SharePoint 2013
6 2 (2.22%) Tomcat
7 1 (1.11%) Apache Qpid
7 1 (1.11%) nginx
7 1 (1.11%) Skype for Business
Applications
1 6 (6.67%) Houdini
1 6 (6.67%) Maya
1 6 (6.67%) NUKE
1 6 (6.67%) Photoshop
Cloud Services
1 17 (18.89%) Amazon AWS
2 12 (13.33%) Amazon S3
3 10 (11.11%) OpenShift
4 8 (8.89%) PaaS
5 3 (3.33%) Amazon EC2
5 3 (3.33%) Amazon ElastiCache
5 3 (3.33%) AWS Elastic Beanstalk
5 3 (3.33%) AWS Lambda
5 3 (3.33%) IaaS
5 3 (3.33%) Microsoft Azure
5 3 (3.33%) Route 53
5 3 (3.33%) Serverless
5 3 (3.33%) Virtual Private Cloud
6 2 (2.22%) SaaS
7 1 (1.11%) AWS CloudFormation
Communications & Networking
1 14 (15.56%) Firewall
2 13 (14.44%) DHCP
2 13 (14.44%) Internet
3 12 (13.33%) Cisco IOS
3 12 (13.33%) DNS
3 12 (13.33%) Junos
4 11 (12.22%) SAN
5 9 (10.00%) Cisco ASA
5 9 (10.00%) NAS
6 7 (7.78%) LAN
6 7 (7.78%) WAN
7 6 (6.67%) TCP/IP
8 5 (5.56%) SSL
8 5 (5.56%) VPN
9 3 (3.33%) HTTP
9 3 (3.33%) SMS
10 2 (2.22%) Network Security
10 2 (2.22%) Remote Desktop
11 1 (1.11%) FIX Connectivity
11 1 (1.11%) iSCSI
Database & Business Intelligence
1 8 (8.89%) MySQL
1 8 (8.89%) SQL Server
2 6 (6.67%) Big Data
3 3 (3.33%) Amazon RDS
3 3 (3.33%) MongoDB
3 3 (3.33%) PostgreSQL
4 2 (2.22%) Amazon DynamoDB
4 2 (2.22%) Apache Cassandra
4 2 (2.22%) NoSQL
5 1 (1.11%) MariaDB
Development Applications
1 20 (22.22%) Jenkins
2 15 (16.67%) Atlassian Bamboo
3 13 (14.44%) JIRA
4 7 (7.78%) Bitbucket
4 7 (7.78%) EasyMock
4 7 (7.78%) Git (software)
4 7 (7.78%) JUnit
5 3 (3.33%) Vagrant
6 2 (2.22%) Artifactory
6 2 (2.22%) SonarQube
6 2 (2.22%) Sonatype Nexus
General
1 14 (15.56%) Telecoms
2 4 (4.44%) Finance
3 2 (2.22%) Electronics
3 2 (2.22%) Games
3 2 (2.22%) Manufacturing
3 2 (2.22%) Marketing
4 1 (1.11%) Aerospace
Job Titles
1 23 (25.56%) DevOps Engineer
2 21 (23.33%) Linux Engineer
3 10 (11.11%) Analyst
3 10 (11.11%) Linux Support
4 9 (10.00%) Administrator
4 9 (10.00%) Storage Engineer
4 9 (10.00%) Systems Administrator
5 8 (8.89%) Infrastructure Engineer
5 8 (8.89%) Junior
5 8 (8.89%) Junior DevOps
5 8 (8.89%) Junior DevOps Engineer
6 7 (7.78%) 3rd Line Support
6 7 (7.78%) 3rd Line Support Analyst
6 7 (7.78%) Customer Analyst
6 7 (7.78%) Support Analyst
7 6 (6.67%) Developer
7 6 (6.67%) Java Software Engineer
7 6 (6.67%) Software Engineer
7 6 (6.67%) Systems Engineer
7 6 (6.67%) Wintel Support
Libraries, Frameworks & Software Standards
1 7 (7.78%) EJB
1 7 (7.78%) Java EE
1 7 (7.78%) JSF
1 7 (7.78%) LAMP
1 7 (7.78%) Spring
2 5 (5.56%) CSS
2 5 (5.56%) HTML
3 3 (3.33%) Web Services
4 2 (2.22%) .NET
4 2 (2.22%) Elastic Stack
5 1 (1.11%) Apache Camel
5 1 (1.11%) FIX Protocol
5 1 (1.11%) LAPP Stack
5 1 (1.11%) LEMP Stack
5 1 (1.11%) Loki
Miscellaneous
1 15 (16.67%) Computer Science
2 12 (13.33%) Private Cloud
3 10 (11.11%) Public Cloud
4 9 (10.00%) Derivative
5 8 (8.89%) Wiki
6 6 (6.67%) Animation
6 6 (6.67%) Cloud Native
7 5 (5.56%) Analytical Skills
7 5 (5.56%) Greenfield Project
8 2 (2.22%) CESG
8 2 (2.22%) Hybrid Cloud
8 2 (2.22%) User Experience
9 1 (1.11%) Client/Server
9 1 (1.11%) Cyber Kill Chain
9 1 (1.11%) Data Centre
9 1 (1.11%) Linux Command Line
Operating Systems
1 90 (100.00%) Linux
2 44 (48.89%) Red Hat Enterprise Linux
3 30 (33.33%) Windows
4 26 (28.89%) Windows Server
5 23 (25.56%) Ubuntu
6 18 (20.00%) Windows Server 2012
7 13 (14.44%) Unix
8 12 (13.33%) Oracle Linux
8 12 (13.33%) Windows Server 2008
9 10 (11.11%) Windows 7
10 9 (10.00%) AIX
11 6 (6.67%) Windows 10
12 4 (4.44%) Debian
13 3 (3.33%) CoreOS
14 1 (1.11%) Mac OS X
14 1 (1.11%) Solaris
Processes & Methodologies
1 31 (34.44%) DevOps
2 30 (33.33%) Open Source
3 28 (31.11%) ITIL
4 24 (26.67%) Agile Software Development
4 24 (26.67%) Configuration Management
5 18 (20.00%) Continuous Integration
6 13 (14.44%) Software Engineering
6 13 (14.44%) Task Automation
7 12 (13.33%) SDLC
8 9 (10.00%) Project Management
8 9 (10.00%) Scrum
8 9 (10.00%) Security Management
9 7 (7.78%) Migration
9 7 (7.78%) OO
9 7 (7.78%) OOD
9 7 (7.78%) Service Delivery
9 7 (7.78%) TDD
10 6 (6.67%) Security Monitoring
11 5 (5.56%) API Development
11 5 (5.56%) Visual Effects
Programming Languages
1 38 (42.22%) Python
2 20 (22.22%) Bash Shell
3 19 (21.11%) Perl
3 19 (21.11%) PHP
4 18 (20.00%) Shell Script
5 12 (13.33%) Java
6 9 (10.00%) C
7 7 (7.78%) C++
8 6 (6.67%) Ruby
9 5 (5.56%) JavaScript
10 4 (4.44%) PowerShell
10 4 (4.44%) SQL
11 3 (3.33%) PL/SQL
12 2 (2.22%) C#
Qualifications
1 30 (33.33%) Security Cleared
2 22 (24.44%) DV Cleared
3 17 (18.89%) SC Cleared
4 16 (17.78%) Degree
5 9 (10.00%) CCNA
5 9 (10.00%) Cisco Certification
5 9 (10.00%) RHCE
5 9 (10.00%) RHCSA
5 9 (10.00%) VMware Certified Professional (VCP)
6 2 (2.22%) CESG Certified Professional
7 1 (1.11%) AWS Certification
7 1 (1.11%) GCFA
7 1 (1.11%) GCIA
7 1 (1.11%) GCIH
7 1 (1.11%) GIAC
7 1 (1.11%) GREM
7 1 (1.11%) MCITP
7 1 (1.11%) MCTS
7 1 (1.11%) Microsoft Certification
Quality Assurance & Compliance
1 1 (1.11%) PCI DSS
1 1 (1.11%) QA
1 1 (1.11%) SLA
System Software
1 32 (35.56%) Active Directory
2 21 (23.33%) Docker
2 21 (23.33%) VMware Infrastructure
3 16 (17.78%) NFS
3 16 (17.78%) Samba
4 10 (11.11%) Virtual Machines
5 7 (7.78%) VMware ESXi
6 5 (5.56%) Firmware
6 5 (5.56%) vSphere
7 4 (4.44%) VirtualBox
8 2 (2.22%) GlusterFS
8 2 (2.22%) Virtual Desktop
9 1 (1.11%) Ceph
9 1 (1.11%) DFS Replication
9 1 (1.11%) Dovecot
9 1 (1.11%) Hyper-V
9 1 (1.11%) Microsoft App-V
9 1 (1.11%) Postfix
9 1 (1.11%) RHEV
Systems Management
1 40 (44.44%) Puppet
2 25 (27.78%) Ansible
3 22 (24.44%) Opscode Chef
4 12 (13.33%) Juju
5 7 (7.78%) Nagios
6 6 (6.67%) Kubernetes
6 6 (6.67%) WSUS
7 3 (3.33%) SCCM
7 3 (3.33%) Terraform
8 2 (2.22%) Graphite
8 2 (2.22%) OSSEC
8 2 (2.22%) Red Hat Satellite
8 2 (2.22%) SCDPM
8 2 (2.22%) SCOM
8 2 (2.22%) SCOrch
8 2 (2.22%) SCSM
8 2 (2.22%) SCVMM
9 1 (1.11%) Galera Cluster
9 1 (1.11%) Microsoft Data Protection Manager
9 1 (1.11%) Red Hat Spacewalk
Vendors
1 73 (81.11%) Red Hat
2 34 (37.78%) VMware
3 24 (26.67%) Cisco
4 17 (18.89%) Oracle
5 16 (17.78%) Microsoft
6 10 (11.11%) HP
6 10 (11.11%) Scality
7 6 (6.67%) SaltStack
8 4 (4.44%) Atlassian
9 2 (2.22%) ArcSight
9 2 (2.22%) Dell
9 2 (2.22%) New Relic
9 2 (2.22%) SAP
10 1 (1.11%) BroadSoft
10 1 (1.11%) F5
10 1 (1.11%) Lumension
10 1 (1.11%) Polycom
10 1 (1.11%) SolarWinds
10 1 (1.11%) Sonus
10 1 (1.11%) Yealink