Period
to 7 April 2020

The following table provides summary statistics for permanent job vacancies advertised in the South East 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 7 April 2020 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > South East
6 months to
7 Apr 2020
Same period 2019 Same period 2018
Rank 344 343 330
Rank change year-on-year -1 -13 -63
Permanent jobs citing CentOS 94 191 252
As % of all permanent jobs advertised in the South East 0.45% 0.71% 0.79%
As % of the Operating Systems category 1.87% 2.85% 2.99%
Number of salaries quoted 86 175 239
Median annual salary £47,500 £55,000 £45,000
Median salary % change year-on-year -13.64% +22.22% -10.00%
10th Percentile £30,000 £26,750 £27,500
90th Percentile £71,875 £74,000 £75,000
England median annual salary £55,000 £55,000 £50,000
% change year-on-year - +10.00% -4.76%

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 East with a requirement for operating system skills.

All Operating Systems
South East
Permanent vacancies with a requirement for operating system skills 5,036 6,699 8,426
As % of all permanent IT jobs advertised in the South East 24.00% 25.04% 26.48%
Number of salaries quoted 4,126 5,456 7,071
Median annual salary £45,000 £42,500 £42,500
Median salary % change year-on-year +5.88% - -
10th Percentile £25,375 £24,500 £23,000
90th Percentile £70,000 £68,750 £65,000
England median annual salary £47,500 £47,500 £47,500

CentOS
Job Vacancy Trend in the South East

Job postings citing CentOS as a proportion of all IT jobs advertised in the South East.

Job vacancy trend for CentOS in the South East

CentOS
Salary Trend in the South East

3-month moving average salary quoted in jobs citing CentOS in the South East.

Salary trend for CentOS in the South East

CentOS
Salary Histogram in the South East

Salary distribution for jobs citing CentOS in the South East over the 6 months to 7 April 2020.

Salary histogram for CentOS in the South East

CentOS
Job Locations in the South East

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the South East region over the 6 months to 7 April 2020. 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
Surrey +39 30 £45,000 +20.00% 3
Hampshire +27 30 £42,500 +21.43% 5
Thames Valley -14 30 £50,000 -13.79% 15
Berkshire -15 19 £60,000 - 13
Oxfordshire +22 8 £50,000 +11.11% 1
Kent +17 3 £45,000 -2.70% 4
Buckinghamshire - 3 £45,000 - 1
East Sussex +8 1 £75,000 +42.86%
CentOS
England

For the 6 months to 7 April 2020, 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 East region with a requirement for CentOS.

1 94 (100.00%) Linux
2 44 (46.81%) Python
3 38 (40.43%) Red Hat
4 25 (26.60%) Ansible
4 25 (26.60%) DevOps
5 24 (25.53%) Jenkins
6 23 (24.47%) Windows
7 21 (22.34%) SQL
7 21 (22.34%) Git (software)
8 20 (21.28%) Kubernetes
9 19 (20.21%) Docker
9 19 (20.21%) Windows Server
9 19 (20.21%) Red Hat Enterprise Linux
9 19 (20.21%) Java
9 19 (20.21%) TCP/IP
10 18 (19.15%) DNS
10 18 (19.15%) Bash Shell
10 18 (19.15%) Agile Software Development
10 18 (19.15%) Ubuntu
10 18 (19.15%) Problem-Solving
11 17 (18.09%) Security Cleared
11 17 (18.09%) JavaScript
11 17 (18.09%) Perl
11 17 (18.09%) Migration
12 16 (17.02%) PostgreSQL
12 16 (17.02%) SaaS
13 15 (15.96%) SC Cleared
13 15 (15.96%) Finance
13 15 (15.96%) MySQL
14 14 (14.89%) AWS

CentOS
Co-occurring IT Skills in the South East 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 12 (12.77%) Apache
2 6 (6.38%) IIS
3 3 (3.19%) Confluence
3 3 (3.19%) Elasticsearch
3 3 (3.19%) WebLogic
4 2 (2.13%) Tomcat
5 1 (1.06%) JBoss
5 1 (1.06%) MS Exchange
5 1 (1.06%) nginx
5 1 (1.06%) SharePoint
5 1 (1.06%) WebSphere
Applications
1 1 (1.06%) Microsoft Office
Cloud Services
1 16 (17.02%) SaaS
2 14 (14.89%) AWS
3 9 (9.57%) Azure
4 7 (7.45%) GCP
5 6 (6.38%) IaaS
6 4 (4.26%) PaaS
7 3 (3.19%) Azure Active Directory
7 3 (3.19%) Azure Data Factory
7 3 (3.19%) Azure ExpressRoute
7 3 (3.19%) GitHub
8 1 (1.06%) BrowserStack
8 1 (1.06%) OpenShift
Communications & Networking
1 19 (20.21%) TCP/IP
2 18 (19.15%) DNS
3 12 (12.77%) Firewall
4 10 (10.64%) HTTP
5 7 (7.45%) LAN
6 5 (5.32%) DHCP
6 5 (5.32%) MRTG
6 5 (5.32%) Network Security
6 5 (5.32%) WAN
7 4 (4.26%) RTP
7 4 (4.26%) SSH
7 4 (4.26%) VPN
7 4 (4.26%) Wireshark
8 3 (3.19%) DMZ
8 3 (3.19%) VoIP
9 2 (2.13%) CDMA
9 2 (2.13%) GSM
9 2 (2.13%) HTTPS
9 2 (2.13%) SMTP
9 2 (2.13%) UMTS
Database & Business Intelligence
1 16 (17.02%) PostgreSQL
2 15 (15.96%) MySQL
3 9 (9.57%) SQL Server
4 7 (7.45%) MariaDB
5 5 (5.32%) Big Data
6 4 (4.26%) Hadoop
7 3 (3.19%) Azure SQL Database
7 3 (3.19%) InfluxDB
8 2 (2.13%) Amazon Athena
9 1 (1.06%) RDBMS
9 1 (1.06%) Relational Database
9 1 (1.06%) SQL Server 2014
Development Applications
1 24 (25.53%) Jenkins
2 21 (22.34%) Git (software)
3 11 (11.70%) JIRA
4 6 (6.38%) Subversion
5 5 (5.32%) Atlassian Bamboo
5 5 (5.32%) Selenium
6 3 (3.19%) Artifactory
6 3 (3.19%) Robot Framework
7 2 (2.13%) GitLab
7 2 (2.13%) Maven
7 2 (2.13%) Sonatype Nexus
8 1 (1.06%) Bitbucket
8 1 (1.06%) GoCD
8 1 (1.06%) JUnit
8 1 (1.06%) NUnit
8 1 (1.06%) TestRail
8 1 (1.06%) WebDriver
General
1 15 (15.96%) Finance
2 6 (6.38%) Telecoms
3 4 (4.26%) Public Sector
4 3 (3.19%) Billing
4 3 (3.19%) Electronics
4 3 (3.19%) Manufacturing
4 3 (3.19%) Marketing
5 2 (2.13%) Retail
6 1 (1.06%) Games
Job Titles
1 17 (18.09%) Developer
1 17 (18.09%) DevOps Engineer
2 16 (17.02%) Linux Engineer
3 13 (13.83%) Administrator
3 13 (13.83%) Linux Administrator
3 13 (13.83%) Systems Engineer
4 11 (11.70%) Support Engineer
5 10 (10.64%) Linux Systems Administrator
5 10 (10.64%) Systems Administrator
6 9 (9.57%) Applications Support
7 8 (8.51%) 2nd Line Support
7 8 (8.51%) IT Support
7 8 (8.51%) Java Developer
7 8 (8.51%) Linux Support
7 8 (8.51%) Linux Systems Engineer
8 7 (7.45%) Senior Systems Engineer
9 6 (6.38%) Infrastructure Engineer
9 6 (6.38%) IT Engineer
9 6 (6.38%) Senior DevOps
9 6 (6.38%) Senior DevOps Engineer
Libraries, Frameworks & Software Standards
1 12 (12.77%) Spring
2 11 (11.70%) HTML
3 7 (7.45%) LAMP
3 7 (7.45%) LDAP
3 7 (7.45%) Spring Boot
3 7 (7.45%) Web Services
4 5 (5.32%) AngularJS
4 5 (5.32%) HTML5
5 4 (4.26%) CSS
5 4 (4.26%) Redux
6 3 (3.19%) Django
6 3 (3.19%) RESTful
6 3 (3.19%) Twitter Bootstrap
6 3 (3.19%) Vue.js
7 2 (2.13%) .NET
7 2 (2.13%) Hibernate
7 2 (2.13%) jQuery
7 2 (2.13%) Kafka
7 2 (2.13%) Node.js
7 2 (2.13%) OAuth
Miscellaneous
1 11 (11.70%) Self-Motivation
2 9 (9.57%) Data Centre
3 8 (8.51%) Linux Command Line
4 5 (5.32%) Replication
5 4 (4.26%) Analytical Skills
5 4 (4.26%) Greenfield Project
6 3 (3.19%) Public Cloud
6 3 (3.19%) User Experience
7 2 (2.13%) LPAR
7 2 (2.13%) Management Information System
8 1 (1.06%) Clustering
8 1 (1.06%) Digital TV
8 1 (1.06%) Enterprise Software
8 1 (1.06%) IPTV
8 1 (1.06%) Mainframe
8 1 (1.06%) Over-the-Top Content
8 1 (1.06%) Smartphone
Operating Systems
1 94 (100.00%) Linux
2 23 (24.47%) Windows
3 19 (20.21%) Red Hat Enterprise Linux
3 19 (20.21%) Windows Server
4 18 (19.15%) Ubuntu
5 12 (12.77%) Windows Server 2016
6 11 (11.70%) Debian
6 11 (11.70%) Windows Server 2012
7 9 (9.57%) Unix
8 5 (5.32%) CoreOS
9 3 (3.19%) Amazon Linux
9 3 (3.19%) Fedora
10 2 (2.13%) AIX
10 2 (2.13%) SUSE
10 2 (2.13%) Windows 7
10 2 (2.13%) Windows Server 2008
11 1 (1.06%) Mac OS
11 1 (1.06%) Windows 10
Processes & Methodologies
1 25 (26.60%) DevOps
2 18 (19.15%) Agile Software Development
2 18 (19.15%) Problem-Solving
3 17 (18.09%) Migration
4 12 (12.77%) Change Management
4 12 (12.77%) Software Engineering
4 12 (12.77%) Test Automation
5 11 (11.70%) Configuration Management
5 11 (11.70%) Scrum
6 10 (10.64%) Continuous Integration
6 10 (10.64%) ITIL
7 9 (9.57%) High Availability
8 8 (8.51%) OO
8 8 (8.51%) TDD
9 7 (7.45%) Infrastructure as Code
9 7 (7.45%) Infrastructure Engineering
9 7 (7.45%) Open Source
9 7 (7.45%) Web Development
10 5 (5.32%) Deployment Automation
10 5 (5.32%) Performance Optimisation
Programming Languages
1 44 (46.81%) Python
2 21 (22.34%) SQL
3 19 (20.21%) Java
4 18 (19.15%) Bash Shell
5 17 (18.09%) JavaScript
5 17 (18.09%) Perl
6 8 (8.51%) C++
6 8 (8.51%) PHP
7 5 (5.32%) Java 8
8 4 (4.26%) C#
8 4 (4.26%) PowerShell
8 4 (4.26%) Shell Script
9 3 (3.19%) Ruby
10 2 (2.13%) HQL
10 2 (2.13%) T-SQL
11 1 (1.06%) C
11 1 (1.06%) Groovy
11 1 (1.06%) PHP 7
11 1 (1.06%) Scala
11 1 (1.06%) XQuery
Qualifications
1 17 (18.09%) Security Cleared
2 15 (15.96%) SC Cleared
3 13 (13.83%) Degree
4 2 (2.13%) AWS Certification
4 2 (2.13%) Cisco Certification
4 2 (2.13%) Computer Science Degree
4 2 (2.13%) ITIL Foundation Certificate
5 1 (1.06%) LPIC
5 1 (1.06%) MCSE
5 1 (1.06%) Microsoft Certification
5 1 (1.06%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 5 (5.32%) ISO/IEC 27001
2 3 (3.19%) PCI DSS
3 2 (2.13%) SLA
4 1 (1.06%) QA
System Software
1 19 (20.21%) Docker
2 12 (12.77%) KVM
3 8 (8.51%) Active Directory
4 7 (7.45%) Squid
5 6 (6.38%) VMware Infrastructure
6 5 (5.32%) Virtual Machines
7 4 (4.26%) vSphere
8 3 (3.19%) Hyper-V
8 3 (3.19%) NFS
9 2 (2.13%) Firmware
9 2 (2.13%) PowerHA
10 1 (1.06%) Veritas Cluster Server
10 1 (1.06%) Virtual Servers
10 1 (1.06%) VMware Workstation
10 1 (1.06%) XenApp
10 1 (1.06%) XenDesktop
Systems Management
1 25 (26.60%) Ansible
2 20 (21.28%) Kubernetes
3 13 (13.83%) Terraform
4 9 (9.57%) Puppet
5 6 (6.38%) HAProxy
6 5 (5.32%) Norton AntiVirus
6 5 (5.32%) ZABBIX
7 4 (4.26%) Opscode Chef
8 3 (3.19%) Ambari
8 3 (3.19%) SELinux
8 3 (3.19%) vCenter Server
9 2 (2.13%) EMC NetWorker
9 2 (2.13%) Icinga
9 2 (2.13%) Linux-HA
9 2 (2.13%) Perfmon
9 2 (2.13%) Tivoli
9 2 (2.13%) Tivoli Storage Manager
9 2 (2.13%) WSUS
10 1 (1.06%) Red Hat Satellite
10 1 (1.06%) Webmin
Vendors
1 38 (40.43%) Red Hat
2 12 (12.77%) Microsoft
2 12 (12.77%) VMware
3 9 (9.57%) Cisco
4 8 (8.51%) Dell
5 7 (7.45%) Atlassian
6 6 (6.38%) Google
7 5 (5.32%) McAfee
7 5 (5.32%) Symantec
8 4 (4.26%) HP
8 4 (4.26%) Oracle
9 3 (3.19%) Palo Alto
9 3 (3.19%) SAP
9 3 (3.19%) ServiceNow
10 2 (2.13%) CA
10 2 (2.13%) CommVault
10 2 (2.13%) EMC
10 2 (2.13%) F5
10 2 (2.13%) Twitter
11 1 (1.06%) Vertica