Period
to 18 September 2019

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 18 September 2019 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > South West
6 months to
18 Sep 2019
Same period 2018 Same period 2017
Rank 168 229 242
Rank change year-on-year +61 +13 +36
Permanent jobs citing CentOS 181 118 96
As % of all permanent IT jobs advertised in the South West 1.80% 1.14% 0.94%
As % of the Operating Systems category 7.02% 4.26% 3.62%
Number of salaries quoted 166 74 80
South West median annual salary £45,500 £45,000 £40,000
Median salary % change year-on-year +1.11% +12.50% -5.88%
10th Percentile £31,375 £31,250 £32,500
90th Percentile £63,750 £60,000 £55,000
England median annual salary £50,000 £55,000 £50,000
% change year-on-year -9.09% +10.00% -

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 2,577 2,768 2,654
As % of all permanent IT jobs advertised in the South West 25.66% 26.67% 26.06%
Number of salaries quoted 2,119 2,198 2,238
South West median annual salary £40,000 £40,000 £40,000
10th Percentile £25,000 £24,000 £23,000
90th Percentile £62,500 £60,000 £60,000
England median annual salary £47,500 £47,500 £45,000
% change year-on-year - +5.56% -

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 18 September 2019.

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 18 September 2019. 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
Gloucestershire -14 67 £47,500 +5.56% 3
Wiltshire +21 48 £62,500 +47.06% 3
Bristol +5 28 £42,500 -5.03% 3
Somerset +27 22 £45,000 - 2
Dorset +15 15 £40,000 -11.11% 1
Devon -13 1 £40,000 -
CentOS
England

For the 6 months to 18 September 2019, 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.

1 181 (100.00%) Linux
2 133 (73.48%) Red Hat
3 85 (46.96%) Python
4 84 (46.41%) Security Cleared
5 75 (41.44%) Windows
6 73 (40.33%) Puppet
7 66 (36.46%) DevOps
7 66 (36.46%) Red Hat Enterprise Linux
8 60 (33.15%) Bash Shell
8 60 (33.15%) Kubernetes
9 59 (32.60%) VMware
10 58 (32.04%) Ubuntu
11 54 (29.83%) Debian
12 50 (27.62%) Jenkins
13 49 (27.07%) Ansible
13 49 (27.07%) Agile Software Development
14 46 (25.41%) Docker
15 45 (24.86%) Windows Server
16 42 (23.20%) SC Cleared
17 41 (22.65%) JIRA
17 41 (22.65%) Firewall
18 39 (21.55%) VMware Infrastructure
19 38 (20.99%) ITIL
19 38 (20.99%) Infrastructure Engineering
20 36 (19.89%) DV Cleared
21 35 (19.34%) Apache
22 34 (18.78%) Java
23 33 (18.23%) Scrum
24 32 (17.68%) Cisco
25 30 (16.57%) PowerShell

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 35 (19.34%) Apache
2 25 (13.81%) Confluence
3 14 (7.73%) Elasticsearch
4 7 (3.87%) Tomcat
5 6 (3.31%) nginx
6 4 (2.21%) OpenStack
7 2 (1.10%) Apache Spark
7 2 (1.10%) IIS
Cloud Services
1 30 (16.57%) AWS
2 27 (14.92%) GCP
3 25 (13.81%) Azure
4 7 (3.87%) Virtual Private Cloud
5 6 (3.31%) OpenShift
6 5 (2.76%) AWS CloudFormation
7 4 (2.21%) G Suite
7 4 (2.21%) Google App Engine
8 3 (1.66%) IaaS
9 2 (1.10%) Cloud Computing
10 1 (0.55%) Amazon CloudWatch
10 1 (0.55%) Datadog
Communications & Networking
1 41 (22.65%) Firewall
2 25 (13.81%) VLAN
3 20 (11.05%) SAN
4 18 (9.94%) VPN
5 17 (9.39%) OSPF
6 16 (8.84%) TCP/IP
7 15 (8.29%) DNS
7 15 (8.29%) Ethernet
7 15 (8.29%) IGMP
7 15 (8.29%) MPLS
7 15 (8.29%) Multicast
7 15 (8.29%) Wireless
8 13 (7.18%) LAN
8 13 (7.18%) WAN
9 9 (4.97%) NAS
10 8 (4.42%) Cisco ASA
11 7 (3.87%) DHCP
11 7 (3.87%) DMZ
11 7 (3.87%) SSH
12 6 (3.31%) SMTP
Database & Business Intelligence
1 12 (6.63%) Big Data
1 12 (6.63%) MySQL
2 8 (4.42%) MongoDB
3 5 (2.76%) NoSQL
4 4 (2.21%) BigQuery
4 4 (2.21%) CouchDB
4 4 (2.21%) MariaDB
4 4 (2.21%) PostgreSQL
5 3 (1.66%) SQL Server
6 2 (1.10%) Amazon DynamoDB
6 2 (1.10%) Apache Cassandra
6 2 (1.10%) Apache Hive
6 2 (1.10%) Hadoop
6 2 (1.10%) Redis
6 2 (1.10%) Riak
7 1 (0.55%) Relational Database
Development Applications
1 50 (27.62%) Jenkins
2 41 (22.65%) JIRA
3 29 (16.02%) JUnit
4 26 (14.36%) Git (software)
5 20 (11.05%) Atlassian Bamboo
5 20 (11.05%) Bitbucket
6 18 (9.94%) Bitbucket Server
7 16 (8.84%) EasyMock
8 12 (6.63%) Subversion
9 8 (4.42%) Maven
10 7 (3.87%) Cucumber
11 4 (2.21%) TestRail
12 3 (1.66%) Robot Framework
13 2 (1.10%) Eclipse
13 2 (1.10%) git-flow
13 2 (1.10%) GitLab
14 1 (0.55%) Appium
14 1 (0.55%) LoadRunner
14 1 (0.55%) Selenium
14 1 (0.55%) Visual Studio
General
1 16 (8.84%) Finance
1 16 (8.84%) Retail
2 15 (8.29%) Marketing
3 9 (4.97%) Games
4 7 (3.87%) Aerospace
4 7 (3.87%) Automotive
4 7 (3.87%) Electronics
4 7 (3.87%) Manufacturing
4 7 (3.87%) Public Sector
4 7 (3.87%) Telecoms
5 4 (2.21%) Publishing
6 2 (1.10%) Back Office
6 2 (1.10%) Local Government
7 1 (0.55%) Legal
Job Titles
1 45 (24.86%) Linux Engineer
2 37 (20.44%) Infrastructure Engineer
3 25 (13.81%) Developer
3 25 (13.81%) Senior Linux Engineer
4 18 (9.94%) DevOps Engineer
4 18 (9.94%) Linux Infrastructure Engineer
4 18 (9.94%) Platform Engineer
5 15 (8.29%) Network Engineer
5 15 (8.29%) Senior Network Engineer
6 14 (7.73%) Analyst
7 13 (7.18%) Administrator
8 12 (6.63%) Software Engineer
9 11 (6.08%) Systems Administrator
10 10 (5.52%) Consultant
10 10 (5.52%) Java Developer
11 8 (4.42%) 3rd Line Support
11 8 (4.42%) Java Software Developer
11 8 (4.42%) Software Developer
11 8 (4.42%) Support Analyst
11 8 (4.42%) Systems Engineer
Libraries, Frameworks & Software Standards
1 29 (16.02%) Spring
2 22 (12.15%) Java EE
3 19 (10.50%) EJB
3 19 (10.50%) JSF
4 14 (7.73%) Elastic Stack
5 13 (7.18%) RESTful
6 10 (5.52%) Apache NiFi
7 8 (4.42%) HTML
8 7 (3.87%) AngularJS
8 7 (3.87%) CSS
8 7 (3.87%) JSON
9 6 (3.31%) Node.js
9 6 (3.31%) React
10 5 (2.76%) LAMP
10 5 (2.76%) Web Services
10 5 (2.76%) XML
11 4 (2.21%) Google Maps API
11 4 (2.21%) jQuery
11 4 (2.21%) OAuth
11 4 (2.21%) Servlets
Miscellaneous
1 18 (9.94%) Wiki
2 17 (9.39%) Driving Licence
3 11 (6.08%) Public Cloud
4 6 (3.31%) Clustering
4 6 (3.31%) Cyberthreat
4 6 (3.31%) User Experience
5 5 (2.76%) Enterprise Storage
5 5 (2.76%) Linux Command Line
6 4 (2.21%) Blog
6 4 (2.21%) Data Centre
7 3 (1.66%) Cyberattack
7 3 (1.66%) PKI
8 2 (1.10%) Cybercrime
8 2 (1.10%) Greenfield Project
9 1 (0.55%) Analytical Skills
9 1 (0.55%) Management Information System
9 1 (0.55%) Private Cloud
9 1 (0.55%) Tandem
Operating Systems
1 181 (100.00%) Linux
2 75 (41.44%) Windows
3 66 (36.46%) Red Hat Enterprise Linux
4 58 (32.04%) Ubuntu
5 54 (29.83%) Debian
6 45 (24.86%) Windows Server
7 20 (11.05%) Fedora
8 18 (9.94%) Unix
9 12 (6.63%) Solaris
9 12 (6.63%) Windows Server 2008
10 10 (5.52%) Windows Server 2012
11 8 (4.42%) AIX
12 6 (3.31%) Mac OS
12 6 (3.31%) SUSE
13 2 (1.10%) Android
13 2 (1.10%) Apple iOS
14 1 (0.55%) DC/OS
Processes & Methodologies
1 66 (36.46%) DevOps
2 49 (27.07%) Agile Software Development
3 38 (20.99%) Infrastructure Engineering
3 38 (20.99%) ITIL
4 33 (18.23%) Scrum
5 29 (16.02%) Service Delivery
6 28 (15.47%) Continuous Integration
7 27 (14.92%) Open Source
8 22 (12.15%) Software Engineering
9 21 (11.60%) Cybersecurity
10 17 (9.39%) Configuration Management
10 17 (9.39%) Network Design
11 16 (8.84%) Mentoring
11 16 (8.84%) OO
11 16 (8.84%) OOD
12 15 (8.29%) Test Automation
13 14 (7.73%) Problem-Solving
14 13 (7.18%) Kanban
15 11 (6.08%) User Stories
16 10 (5.52%) Build Automation
Programming Languages
1 85 (46.96%) Python
2 60 (33.15%) Bash Shell
3 34 (18.78%) Java
4 30 (16.57%) PowerShell
5 27 (14.92%) C
6 26 (14.36%) Shell Script
7 24 (13.26%) C++
8 21 (11.60%) Perl
9 16 (8.84%) JavaScript
10 10 (5.52%) Ruby
10 10 (5.52%) SQL
11 9 (4.97%) PHP
12 5 (2.76%) Korn
13 2 (1.10%) Go
14 1 (0.55%) C#
14 1 (0.55%) VB
Qualifications
1 84 (46.41%) Security Cleared
2 42 (23.20%) SC Cleared
3 36 (19.89%) DV Cleared
4 19 (10.50%) Cisco Certification
5 15 (8.29%) CCNA
6 10 (5.52%) Degree
7 9 (4.97%) RHCE
8 8 (4.42%) VMware Certified Professional (VCP)
9 5 (2.76%) CCNP
10 4 (2.21%) ISTQB
11 3 (1.66%) RHCSA
12 2 (1.10%) CISSP
12 2 (1.10%) CompTIA Security+
12 2 (1.10%) Computer Science Degree
12 2 (1.10%) GIAC
12 2 (1.10%) Linux+ Certification
12 2 (1.10%) MCSE
12 2 (1.10%) Microsoft Certification
12 2 (1.10%) Network+ Certification
12 2 (1.10%) SANS
Quality Assurance & Compliance
1 2 (1.10%) ISO/IEC 27001
1 2 (1.10%) QA
2 1 (0.55%) PCI DSS
System Software
1 46 (25.41%) Docker
2 39 (21.55%) VMware Infrastructure
3 26 (14.36%) Hyper-V
4 18 (9.94%) Xen
5 17 (9.39%) Active Directory
6 11 (6.08%) KVM
6 11 (6.08%) VirtualBox
6 11 (6.08%) VMware ESXi
7 10 (5.52%) Ceph
8 7 (3.87%) DRBD
8 7 (3.87%) Samba
9 6 (3.31%) Btrfs
9 6 (3.31%) Snort
10 5 (2.76%) NFS
10 5 (2.76%) vSphere
11 4 (2.21%) Dovecot
11 4 (2.21%) Postfix
12 1 (0.55%) Virtual Machines
Systems Management
1 73 (40.33%) Puppet
2 60 (33.15%) Kubernetes
3 49 (27.07%) Ansible
4 25 (13.81%) Red Hat Spacewalk
5 22 (12.15%) Nagios
6 18 (9.94%) SCCM
7 12 (6.63%) Check_MK
7 12 (6.63%) Grafana
8 11 (6.08%) Opscode Chef
9 10 (5.52%) ZABBIX
10 8 (4.42%) Docker Swarm
11 7 (3.87%) Oracle ZFS
11 7 (3.87%) Red Hat Satellite
11 7 (3.87%) WSUS
11 7 (3.87%) yum
12 6 (3.31%) Computer Incident Response Team
12 6 (3.31%) OpenNMS
12 6 (3.31%) vCenter Server
13 5 (2.76%) Terraform
14 4 (2.21%) Graylog
Vendors
1 133 (73.48%) Red Hat
2 59 (32.60%) VMware
3 32 (17.68%) Cisco
4 24 (13.26%) Google
5 13 (7.18%) Fortinet
5 13 (7.18%) Juniper
5 13 (7.18%) Microsoft
6 11 (6.08%) NetApp
7 7 (3.87%) Dell
7 7 (3.87%) EMC
7 7 (3.87%) SAP
8 6 (3.31%) SolarWinds
9 5 (2.76%) Cloudera
9 5 (2.76%) Hortonworks
10 4 (2.21%) Atlassian
10 4 (2.21%) HP
10 4 (2.21%) Scality
11 1 (0.55%) Capita
11 1 (0.55%) Palo Alto
11 1 (0.55%) Splunk