Period
to 23 February 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 23 February 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > South West
6 months to
23 Feb 2018
Same period 2017 Same period 2016
Rank 255 264 296
Rank change year-on-year +9 +32 -41
Permanent jobs citing CentOS 79 79 53
As % of all permanent IT jobs advertised in the South West 0.77% 0.76% 0.45%
As % of the Operating Systems category 2.87% 3.13% 1.52%
Number of salaries quoted 72 69 45
South West median annual salary £42,500 £37,500 £40,000
Median salary % change year-on-year +13.33% -6.25% -5.88%
10th Percentile £33,750 £21,750 £32,500
90th Percentile £57,375 £62,500 £53,750
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 2,755 2,526 3,485
As % of all permanent IT jobs advertised in the South West 26.93% 24.23% 29.68%
Number of salaries quoted 2,199 2,183 3,096
South West median annual salary £40,000 £37,000 £37,500
Median salary % change year-on-year +8.11% -1.33% +7.14%
10th Percentile £22,750 £22,500 £22,000
90th Percentile £58,750 £56,250 £60,000
England median annual salary £45,000 £45,000 £44,794
% change year-on-year - +0.46% +5.40%

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 23 February 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 23 February 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
Wiltshire +20 27 £40,000 -17.95% 2
Gloucestershire +30 25 £45,000 +5.88% 6
Bristol -2 21 £42,500 -2.86% 6
Somerset -12 5 £58,500 +125.00% 3
Dorset - 1 £45,000 - 1
CentOS
England

For the 6 months to 23 February 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 79 (100.00%) Linux
2 68 (86.08%) Red Hat
3 57 (72.15%) Red Hat Enterprise Linux
4 49 (62.03%) VMware
5 47 (59.49%) ITIL
6 39 (49.37%) Security Cleared
7 35 (44.30%) Active Directory
8 33 (41.77%) DV Cleared
8 33 (41.77%) Puppet
9 32 (40.51%) VMware Infrastructure
10 29 (36.71%) Shell Script
11 26 (32.91%) Windows
11 26 (32.91%) Python
12 23 (29.11%) Oracle
13 20 (25.32%) SC Cleared
13 20 (25.32%) Amazon S3
14 19 (24.05%) Jenkins
14 19 (24.05%) Unix
14 19 (24.05%) Apache
14 19 (24.05%) Agile Software Development
15 18 (22.78%) Security Management
15 18 (22.78%) DHCP
15 18 (22.78%) DNS
15 18 (22.78%) Microsoft
15 18 (22.78%) Scality
16 17 (21.52%) DevOps
16 17 (21.52%) Open Source
16 17 (21.52%) Oracle Linux
16 17 (21.52%) NFS
16 17 (21.52%) Java

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 19 (24.05%) Apache
2 15 (18.99%) Confluence
3 5 (6.33%) OpenStack
4 3 (3.80%) nginx
5 2 (2.53%) IIS
5 2 (2.53%) Tomcat
6 1 (1.27%) Cloud Foundry
6 1 (1.27%) JBoss
Cloud Services
1 20 (25.32%) Amazon S3
2 10 (12.66%) OpenShift
3 9 (11.39%) Amazon AWS
4 5 (6.33%) AWS Elastic Beanstalk
4 5 (6.33%) AWS Lambda
4 5 (6.33%) Serverless
5 4 (5.06%) Amazon EC2
5 4 (5.06%) Amazon ElastiCache
5 4 (5.06%) Route 53
5 4 (5.06%) Virtual Private Cloud
6 2 (2.53%) IaaS
6 2 (2.53%) PaaS
6 2 (2.53%) SaaS
7 1 (1.27%) Google Cloud Platform
7 1 (1.27%) Microsoft Azure
Communications & Networking
1 18 (22.78%) DHCP
1 18 (22.78%) DNS
2 15 (18.99%) SAN
3 14 (17.72%) Firewall
4 10 (12.66%) Cisco ASA
4 10 (12.66%) NAS
4 10 (12.66%) TCP/IP
5 6 (7.59%) SSL
5 6 (7.59%) VPN
6 4 (5.06%) HTTP
6 4 (5.06%) SMS
7 3 (3.80%) LAN
7 3 (3.80%) WAN
8 2 (2.53%) Fibre Channel
8 2 (2.53%) iSCSI
8 2 (2.53%) Network Security
9 1 (1.27%) FIX Connectivity
9 1 (1.27%) MPLS
9 1 (1.27%) OpenVPN
9 1 (1.27%) OSPF
Database & Business Intelligence
1 11 (13.92%) MySQL
2 6 (7.59%) MongoDB
3 5 (6.33%) Amazon DynamoDB
3 5 (6.33%) NoSQL
3 5 (6.33%) PostgreSQL
4 4 (5.06%) Amazon RDS
4 4 (5.06%) Apache Cassandra
4 4 (5.06%) MariaDB
4 4 (5.06%) SQL Server
5 1 (1.27%) Big Data
Development Applications
1 19 (24.05%) Jenkins
2 16 (20.25%) Atlassian Bamboo
2 16 (20.25%) JIRA
3 11 (13.92%) JUnit
4 10 (12.66%) Bitbucket
4 10 (12.66%) EasyMock
5 6 (7.59%) Git (software)
6 5 (6.33%) Artifactory
6 5 (6.33%) SonarQube
6 5 (6.33%) Sonatype Nexus
6 5 (6.33%) Vagrant
7 1 (1.27%) Cucumber
7 1 (1.27%) Maven
General
1 4 (5.06%) Finance
2 3 (3.80%) Law
3 2 (2.53%) Electronics
3 2 (2.53%) Manufacturing
3 2 (2.53%) Marketing
3 2 (2.53%) Telecoms
4 1 (1.27%) Banking
Job Titles
1 25 (31.65%) Linux Engineer
2 16 (20.25%) Storage Engineer
3 12 (15.19%) IT Manager
4 10 (12.66%) Java Engineer
4 10 (12.66%) Java Software Engineer
4 10 (12.66%) Software Engineer
5 9 (11.39%) Customer Communications Manager
5 9 (11.39%) IT Communications Manager
6 8 (10.13%) IT Support
7 7 (8.86%) DevOps Engineer
7 7 (8.86%) Systems Support
8 6 (7.59%) Administrator
8 6 (7.59%) Infrastructure Engineer
8 6 (7.59%) Systems Administrator
9 5 (6.33%) Linux Systems Engineer
9 5 (6.33%) Systems Engineer
10 4 (5.06%) IT Technician
10 4 (5.06%) Linux Administrator
10 4 (5.06%) Linux Systems Administrator
11 3 (3.80%) Support Technician
Libraries, Frameworks & Software Standards
1 11 (13.92%) Java EE
1 11 (13.92%) Spring
2 10 (12.66%) EJB
2 10 (12.66%) JSF
3 5 (6.33%) LAMP
4 4 (5.06%) Elastic Stack
5 3 (3.80%) LEMP Stack
6 1 (1.27%) CSS
6 1 (1.27%) FIX Protocol
6 1 (1.27%) HTML
6 1 (1.27%) LAPP Stack
6 1 (1.27%) Middleware
6 1 (1.27%) RESTful
6 1 (1.27%) Servlets
Miscellaneous
1 16 (20.25%) Derivative
2 10 (12.66%) Wiki
3 6 (7.59%) Public Cloud
4 4 (5.06%) CESG
4 4 (5.06%) Computer Science
5 2 (2.53%) Hybrid Cloud
5 2 (2.53%) Management Information System
6 1 (1.27%) Cloud Native
6 1 (1.27%) Clustering
6 1 (1.27%) Cyber Kill Chain
6 1 (1.27%) Greenfield Project
6 1 (1.27%) Linux Command Line
Operating Systems
1 79 (100.00%) Linux
2 57 (72.15%) Red Hat Enterprise Linux
3 26 (32.91%) Windows
4 19 (24.05%) Unix
5 17 (21.52%) Oracle Linux
6 15 (18.99%) Windows Server
7 13 (16.46%) AIX
8 11 (13.92%) Windows Server 2008
9 10 (12.66%) Windows Server 2012
10 9 (11.39%) Ubuntu
11 5 (6.33%) CoreOS
11 5 (6.33%) Debian
12 3 (3.80%) Nucleus RTOS
13 1 (1.27%) Fedora
13 1 (1.27%) Mac OS X
13 1 (1.27%) SUSE
13 1 (1.27%) Windows 2000
13 1 (1.27%) Windows Server 2003
Processes & Methodologies
1 47 (59.49%) ITIL
2 19 (24.05%) Agile Software Development
3 18 (22.78%) Security Management
4 17 (21.52%) DevOps
4 17 (21.52%) Open Source
5 15 (18.99%) Scrum
6 13 (16.46%) Project Management
7 12 (15.19%) Service Delivery
8 11 (13.92%) Software Engineering
9 10 (12.66%) OO
9 10 (12.66%) OOD
10 9 (11.39%) Continuous Integration
11 7 (8.86%) Coaching
11 7 (8.86%) Configuration Management
11 7 (8.86%) Facilities Management
11 7 (8.86%) Knowledge Management
11 7 (8.86%) Service Management
12 5 (6.33%) Migration
12 5 (6.33%) Waterfall
13 4 (5.06%) Load Balancing
Programming Languages
1 29 (36.71%) Shell Script
2 26 (32.91%) Python
3 17 (21.52%) Java
4 14 (17.72%) C
5 12 (15.19%) Bash Shell
6 10 (12.66%) C++
7 9 (11.39%) Perl
7 9 (11.39%) Ruby
8 7 (8.86%) SQL
9 5 (6.33%) PL/SQL
10 2 (2.53%) PHP
11 1 (1.27%) JavaScript
11 1 (1.27%) PowerShell
Qualifications
1 39 (49.37%) Security Cleared
2 33 (41.77%) DV Cleared
3 20 (25.32%) SC Cleared
4 16 (20.25%) RHCE
4 16 (20.25%) RHCSA
5 11 (13.92%) CCNA
5 11 (13.92%) Cisco Certification
6 10 (12.66%) VMware Certified Professional (VCP)
7 8 (10.13%) Degree
8 4 (5.06%) CESG Certified Professional
9 1 (1.27%) GCFA
9 1 (1.27%) GCIA
9 1 (1.27%) GCIH
9 1 (1.27%) GIAC
9 1 (1.27%) GREM
Quality Assurance & Compliance
1 3 (3.80%) SLA
2 1 (1.27%) PCI DSS
2 1 (1.27%) QA
System Software
1 35 (44.30%) Active Directory
2 32 (40.51%) VMware Infrastructure
3 17 (21.52%) NFS
3 17 (21.52%) Samba
4 16 (20.25%) Virtual Machines
5 11 (13.92%) Docker
6 5 (6.33%) GlusterFS
6 5 (6.33%) VirtualBox
7 3 (3.80%) Ceph
7 3 (3.80%) Postfix
8 2 (2.53%) Dovecot
8 2 (2.53%) VMware ESXi
9 1 (1.27%) RHEV
Systems Management
1 33 (41.77%) Puppet
2 14 (17.72%) Ansible
3 11 (13.92%) Kubernetes
4 9 (11.39%) Opscode Chef
5 8 (10.13%) Nagios
6 4 (5.06%) OSSEC
6 4 (5.06%) Terraform
7 3 (3.80%) Galera Cluster
8 2 (2.53%) Graphite
9 1 (1.27%) CFEngine
9 1 (1.27%) Cobbler
9 1 (1.27%) Red Hat Satellite
9 1 (1.27%) SCCM
9 1 (1.27%) SCOrch
9 1 (1.27%) ZABBIX
Vendors
1 68 (86.08%) Red Hat
2 49 (62.03%) VMware
3 23 (29.11%) Oracle
4 18 (22.78%) Microsoft
4 18 (22.78%) Scality
5 16 (20.25%) HP
6 10 (12.66%) Cisco
7 7 (8.86%) Ivanti
7 7 (8.86%) Sophos
8 5 (6.33%) New Relic
9 2 (2.53%) SAP
10 1 (1.27%) Google
10 1 (1.27%) SaltStack