Period
to 25 May 2018

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 25 May 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > South West
6 months to
25 May 2018
Same period 2017 Same period 2016
Rank 227 256 299
Rank change year-on-year +29 +43 -70
Permanent jobs citing CentOS 124 76 49
As % of all permanent IT jobs advertised in the South West 1.15% 0.75% 0.44%
As % of the Operating Systems category 4.13% 3.16% 1.56%
Number of salaries quoted 96 69 36
South West median annual salary £45,000 £37,500 £40,000
Median salary % change year-on-year +20.00% -6.25% -5.88%
10th Percentile £32,500 £21,750 £30,000
90th Percentile £58,750 £55,000 £58,250
England median annual salary £50,000 £50,000 £52,500
% change year-on-year - -4.76% +16.67%

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 3,002 2,406 3,140
As % of all permanent IT jobs advertised in the South West 27.83% 23.65% 28.23%
Number of salaries quoted 2,363 2,085 2,738
South West median annual salary £40,000 £37,500 £36,750
Median salary % change year-on-year +6.67% +2.04% +5.00%
10th Percentile £23,757 £23,000 £22,000
90th Percentile £60,000 £56,250 £57,500
England median annual salary £47,500 £45,000 £44,500
% change year-on-year +5.56% +1.12% +4.71%

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 25 May 2018.

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 25 May 2018. 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 +12 47 £42,500 +6.25% 7
Gloucestershire +31 41 £45,000 +20.00% 6
Wiltshire +17 23 £42,500 -12.82% 3
Dorset - 7 £45,000 - 1
Somerset +24 3 £51,750 +8.95% 2
Devon +9 2 £34,238 -2.18%
Cornwall -24 2 £34,000 -38.18% 2
Avon - 1 £42,500 -
CentOS
England

For the 6 months to 25 May 2018, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the South West region with a requirement for CentOS.

1 124 (100.00%) Linux
2 110 (88.71%) Red Hat
3 70 (56.45%) Red Hat Enterprise Linux
4 54 (43.55%) VMware
5 50 (40.32%) Python
6 47 (37.90%) ITIL
7 46 (37.10%) Security Cleared
8 45 (36.29%) Java
9 44 (35.48%) Agile Software Development
9 44 (35.48%) Puppet
10 36 (29.03%) DevOps
11 35 (28.23%) DV Cleared
11 35 (28.23%) Active Directory
12 34 (27.42%) Windows
13 33 (26.61%) Jenkins
14 31 (25.00%) JIRA
15 29 (23.39%) JUnit
15 29 (23.39%) Spring
16 28 (22.58%) Apache
16 28 (22.58%) Atlassian Bamboo
16 28 (22.58%) Git (software)
16 28 (22.58%) Confluence
17 26 (20.97%) SC Cleared
17 26 (20.97%) EJB
17 26 (20.97%) C
17 26 (20.97%) JSF
18 25 (20.16%) Open Source
19 24 (19.35%) VMware Infrastructure
19 24 (19.35%) MySQL
19 24 (19.35%) Shell Script

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 28 (22.58%) Apache
1 28 (22.58%) Confluence
2 12 (9.68%) Elasticsearch
3 8 (6.45%) nginx
4 3 (2.42%) OpenStack
5 2 (1.61%) WordPress
6 1 (0.81%) JBoss
6 1 (0.81%) SharePoint
6 1 (0.81%) Tomcat
Business Applications
1 2 (1.61%) Payment Gateway
Cloud Services
1 16 (12.90%) Amazon AWS
2 11 (8.87%) OpenShift
3 10 (8.06%) AWS OpsWorks
4 8 (6.45%) Amazon S3
5 3 (2.42%) Google Cloud Platform
6 2 (1.61%) AWS Elastic Beanstalk
6 2 (1.61%) AWS Lambda
6 2 (1.61%) GitHub
6 2 (1.61%) IaaS
6 2 (1.61%) PaaS
6 2 (1.61%) SaaS
6 2 (1.61%) Serverless
7 1 (0.81%) Amazon EC2
7 1 (0.81%) Amazon ElastiCache
7 1 (0.81%) AWS CloudFormation
7 1 (0.81%) Cloud Computing
7 1 (0.81%) Microsoft Azure
7 1 (0.81%) Route 53
7 1 (0.81%) Virtual Private Cloud
Communications & Networking
1 17 (13.71%) Firewall
2 16 (12.90%) SAN
3 13 (10.48%) Cisco ASA
3 13 (10.48%) NAS
3 13 (10.48%) TCP/IP
4 10 (8.06%) DNS
5 8 (6.45%) DHCP
6 3 (2.42%) LAN
6 3 (2.42%) VPN
7 2 (1.61%) SMS
7 2 (1.61%) SNMP
7 2 (1.61%) SSH
7 2 (1.61%) WAN
8 1 (0.81%) Fibre Channel
8 1 (0.81%) HTTP
8 1 (0.81%) IPv4
8 1 (0.81%) iSCSI
8 1 (0.81%) MPLS
8 1 (0.81%) SSL
8 1 (0.81%) VLAN
Database & Business Intelligence
1 24 (19.35%) MySQL
2 9 (7.26%) MariaDB
3 4 (3.23%) PostgreSQL
4 3 (2.42%) MongoDB
5 2 (1.61%) Amazon DynamoDB
5 2 (1.61%) Big Data
5 2 (1.61%) Electronic Patient Records
5 2 (1.61%) NoSQL
6 1 (0.81%) Amazon RDS
6 1 (0.81%) Apache Cassandra
6 1 (0.81%) Hadoop
6 1 (0.81%) MarkLogic
6 1 (0.81%) SQL Server
Development Applications
1 33 (26.61%) Jenkins
2 31 (25.00%) JIRA
3 29 (23.39%) JUnit
4 28 (22.58%) Atlassian Bamboo
4 28 (22.58%) Git (software)
5 15 (12.10%) Bitbucket
5 15 (12.10%) EasyMock
6 9 (7.26%) Eclipse
7 4 (3.23%) Maven
8 3 (2.42%) Cucumber
9 2 (1.61%) Artifactory
9 2 (1.61%) GitLab
9 2 (1.61%) Grunt
9 2 (1.61%) gulp
9 2 (1.61%) PhantomJS
9 2 (1.61%) PHPUnit
9 2 (1.61%) Selenium
9 2 (1.61%) SonarQube
9 2 (1.61%) Sonatype Nexus
9 2 (1.61%) Vagrant
General
1 5 (4.03%) Law
2 4 (3.23%) Finance
3 2 (1.61%) Retail
4 1 (0.81%) Banking
4 1 (0.81%) Military
Job Titles
1 33 (26.61%) Linux Engineer
2 23 (18.55%) Java Engineer
3 19 (15.32%) Developer
3 19 (15.32%) DevOps Engineer
4 16 (12.90%) Java Software Engineer
4 16 (12.90%) Software Engineer
5 15 (12.10%) IT Manager
5 15 (12.10%) Java Developer
6 14 (11.29%) Infrastructure Engineer
7 11 (8.87%) Customer Communications Manager
7 11 (8.87%) IT Communications Manager
7 11 (8.87%) Systems Engineer
8 10 (8.06%) Applications Developer
8 10 (8.06%) IT Support
8 10 (8.06%) Java Applications Developer
8 10 (8.06%) Lead DevOps
8 10 (8.06%) Lead DevOps Engineer
8 10 (8.06%) Linux Systems Engineer
8 10 (8.06%) Support Engineer
9 7 (5.65%) Storage Engineer
Libraries, Frameworks & Software Standards
1 29 (23.39%) Spring
2 26 (20.97%) EJB
2 26 (20.97%) JSF
3 18 (14.52%) Java EE
4 13 (10.48%) LAMP
5 12 (9.68%) Elastic Stack
6 8 (6.45%) LEMP Stack
7 4 (3.23%) CSS
7 4 (3.23%) HTML
8 3 (2.42%) LAPP Stack
8 3 (2.42%) RESTful
8 3 (2.42%) Servlets
9 2 (1.61%) .NET
9 2 (1.61%) CSS3
9 2 (1.61%) jQuery
9 2 (1.61%) LDAP
9 2 (1.61%) Sass
10 1 (0.81%) Middleware
10 1 (0.81%) Spring Boot
10 1 (0.81%) XML
Miscellaneous
1 15 (12.10%) Wiki
2 12 (9.68%) Linux Command Line
3 9 (7.26%) Computer Science
4 7 (5.65%) Derivative
5 4 (3.23%) Management Information System
6 3 (2.42%) Analytical Skills
7 2 (1.61%) Clustering
8 1 (0.81%) CESG
8 1 (0.81%) Cyberthreat
8 1 (0.81%) Data Centre
8 1 (0.81%) Private Cloud
8 1 (0.81%) Public Cloud
8 1 (0.81%) Self-Motivation
8 1 (0.81%) User Experience
Operating Systems
1 124 (100.00%) Linux
2 70 (56.45%) Red Hat Enterprise Linux
3 34 (27.42%) Windows
4 21 (16.94%) Ubuntu
4 21 (16.94%) Windows Server
5 19 (15.32%) Debian
6 18 (14.52%) Windows Server 2008
7 16 (12.90%) AIX
8 14 (11.29%) Windows Server 2012
9 11 (8.87%) Unix
10 7 (5.65%) Oracle Linux
11 6 (4.84%) Windows Server 2003
12 4 (3.23%) Windows 2000
13 3 (2.42%) Fedora
13 3 (2.42%) Nucleus RTOS
13 3 (2.42%) SUSE
14 2 (1.61%) CoreOS
15 1 (0.81%) Solaris
15 1 (0.81%) Windows 10
Processes & Methodologies
1 47 (37.90%) ITIL
2 44 (35.48%) Agile Software Development
3 36 (29.03%) DevOps
4 25 (20.16%) Open Source
5 17 (13.71%) Project Management
5 17 (13.71%) Scrum
5 17 (13.71%) Software Engineering
6 15 (12.10%) OO
6 15 (12.10%) OOD
7 14 (11.29%) Continuous Improvement
7 14 (11.29%) Service Delivery
8 12 (9.68%) Cybersecurity
8 12 (9.68%) Mentoring
9 11 (8.87%) Continuous Delivery
10 10 (8.06%) Dependency Injection
10 10 (8.06%) Service Management
11 9 (7.26%) Security Management
12 7 (5.65%) Coaching
12 7 (5.65%) Facilities Management
12 7 (5.65%) Knowledge Management
Programming Languages
1 50 (40.32%) Python
2 45 (36.29%) Java
3 26 (20.97%) C
4 24 (19.35%) Shell Script
5 22 (17.74%) Bash Shell
6 18 (14.52%) C++
6 18 (14.52%) Perl
7 10 (8.06%) Ruby
8 5 (4.03%) JavaScript
8 5 (4.03%) PHP
9 3 (2.42%) C#
9 3 (2.42%) SQL
10 2 (1.61%) PL/SQL
11 1 (0.81%) PowerShell
Qualifications
1 46 (37.10%) Security Cleared
2 35 (28.23%) DV Cleared
3 26 (20.97%) SC Cleared
4 14 (11.29%) CCNA
4 14 (11.29%) Cisco Certification
5 13 (10.48%) VMware Certified Professional (VCP)
6 11 (8.87%) Degree
7 8 (6.45%) RHCE
7 8 (6.45%) RHCSA
8 1 (0.81%) CESG Certified Professional
Quality Assurance & Compliance
1 11 (8.87%) QA
2 3 (2.42%) SLA
System Software
1 35 (28.23%) Active Directory
2 24 (19.35%) VMware Infrastructure
3 23 (18.55%) Docker
4 8 (6.45%) Ceph
4 8 (6.45%) Postfix
5 7 (5.65%) Dovecot
5 7 (5.65%) NFS
5 7 (5.65%) Samba
5 7 (5.65%) Virtual Machines
6 6 (4.84%) Hyper-V
7 2 (1.61%) GlusterFS
7 2 (1.61%) VMware ESXi
8 1 (0.81%) PowerDNS
8 1 (0.81%) RHEV
8 1 (0.81%) VirtualBox
8 1 (0.81%) vSphere
Systems Management
1 44 (35.48%) Puppet
2 20 (16.13%) Ansible
3 12 (9.68%) Kubernetes
3 12 (9.68%) Opscode Chef
4 8 (6.45%) Galera Cluster
5 7 (5.65%) Nagios
6 5 (4.03%) SCCM
7 4 (3.23%) Red Hat Satellite
7 4 (3.23%) SCOrch
8 3 (2.42%) Terraform
9 1 (0.81%) Cacti
9 1 (0.81%) Cobbler
9 1 (0.81%) OSSEC
9 1 (0.81%) Red Hat Spacewalk
9 1 (0.81%) Salt
9 1 (0.81%) WSUS
9 1 (0.81%) ZABBIX
Vendors
1 110 (88.71%) Red Hat
2 54 (43.55%) VMware
3 14 (11.29%) Cisco
3 14 (11.29%) Scality
4 10 (8.06%) Oracle
5 9 (7.26%) Microsoft
6 7 (5.65%) Centrify
6 7 (5.65%) HP
6 7 (5.65%) Ivanti
6 7 (5.65%) Sophos
7 3 (2.42%) Google
8 2 (1.61%) Adobe
8 2 (1.61%) New Relic
9 1 (0.81%) EMC
9 1 (0.81%) Juniper
9 1 (0.81%) SolarWinds