Period
to 19 August 2019

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 19 August 2019 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > South East
6 months to
19 Aug 2019
Same period 2018 Same period 2017
Rank 339 355 263
Rank change year-on-year +16 -92 +31
Permanent jobs citing CentOS 185 193 341
As % of all permanent IT jobs advertised in the South East 0.71% 0.65% 1.16%
As % of the Operating Systems category 2.82% 2.60% 4.10%
Number of salaries quoted 175 173 304
South East median annual salary £50,000 £55,000 £46,250
Median salary % change year-on-year -9.09% +18.92% -11.90%
10th Percentile £31,000 £36,250 £30,041
90th Percentile £72,000 £74,000 £68,750
England median annual salary £50,000 £52,500 £50,000
% change year-on-year -4.76% +5.00% -

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 East with a requirement for operating system skills.

All Operating Systems
South East
Permanent vacancies with a requirement for operating system skills 6,564 7,421 8,307
As % of all permanent IT jobs advertised in the South East 25.20% 25.09% 28.32%
Number of salaries quoted 5,348 6,074 7,106
South East median annual salary £44,000 £42,500 £41,500
Median salary % change year-on-year +3.53% +2.41% -2.35%
10th Percentile £25,000 £23,750 £23,250
90th Percentile £70,000 £66,250 £62,500
England median annual salary £47,500 £47,500 £45,000
% change year-on-year - +5.56% -

CentOS
Job Vacancy Trend in the South East

Job postings citing CentOS as a percentage 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

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

Salary trend for CentOS in the South East

CentOS
Salary Histogram in the South East

The salary distribution of IT jobs citing CentOS in the South East over the 6 months to 19 August 2019.

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 19 August 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
Hampshire +20 53 £47,500 +21.79% 3
Thames Valley -19 51 £45,000 -14.29% 12
West Sussex +22 40 £62,500 +4.17%
Surrey +12 38 £55,000 -21.43% 6
Berkshire -15 32 £45,000 -18.18% 7
Oxfordshire +30 15 £45,000 -18.18% 4
Buckinghamshire +3 4 £37,057 -21.99% 1
Kent +5 2 £46,000 +68.81% 2
East Sussex +15 1 £55,000 -8.33%
CentOS
England

For the 6 months to 19 August 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 East region with a requirement for CentOS.

1 180 (97.30%) Linux
2 80 (43.24%) Red Hat Enterprise Linux
3 77 (41.62%) Python
4 76 (41.08%) Red Hat
5 62 (33.51%) Amazon AWS
6 61 (32.97%) VMware
7 59 (31.89%) Ubuntu
8 53 (28.65%) Ansible
9 52 (28.11%) Microsoft Azure
10 49 (26.49%) DevOps
10 49 (26.49%) Debian
11 47 (25.41%) Bash Shell
12 43 (23.24%) Cisco
13 41 (22.16%) MySQL
13 41 (22.16%) Degree
14 40 (21.62%) PostgreSQL
15 39 (21.08%) Unix
16 38 (20.54%) Firewall
16 38 (20.54%) Brocade
16 38 (20.54%) Puppet
17 35 (18.92%) Security Cleared
18 33 (17.84%) Finance
18 33 (17.84%) DNS
18 33 (17.84%) Git (software)
19 32 (17.30%) Cisco Certification
20 31 (16.76%) Windows
20 31 (16.76%) ITIL
21 30 (16.22%) Shell Script
21 30 (16.22%) Nagios
22 29 (15.68%) JavaScript

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 19 (10.27%) Apache
2 12 (6.49%) Elasticsearch
3 9 (4.86%) IIS
4 8 (4.32%) nginx
5 7 (3.78%) MS Exchange
5 7 (3.78%) Tomcat
6 4 (2.16%) Confluence
6 4 (2.16%) GlassFish
7 3 (1.62%) OpenStack
7 3 (1.62%) SharePoint
8 2 (1.08%) Skype for Business
9 1 (0.54%) Exchange Server 2010
9 1 (0.54%) JBoss
9 1 (0.54%) WildFly
Applications
1 1 (0.54%) Microsoft Office
Business Applications
1 4 (2.16%) Cisco SocialMiner
2 1 (0.54%) Payment Gateway
2 1 (0.54%) Sage 200
Cloud Services
1 62 (33.51%) Amazon AWS
2 52 (28.11%) Microsoft Azure
3 17 (9.19%) AWS CloudFormation
4 9 (4.86%) Office 365
5 8 (4.32%) Google Cloud Platform
5 8 (4.32%) SaaS
6 6 (3.24%) Amazon CloudWatch
7 5 (2.70%) Cloud Computing
8 4 (2.16%) Amazon S3
8 4 (2.16%) GitHub
8 4 (2.16%) Virtual Private Cloud
9 3 (1.62%) Amazon EC2
9 3 (1.62%) Amazon ELB
9 3 (1.62%) Datadog
9 3 (1.62%) Route 53
10 1 (0.54%) IaaS
Communications & Networking
1 38 (20.54%) Firewall
2 33 (17.84%) DNS
3 29 (15.68%) Cisco Nexus
4 28 (15.14%) VPN
5 25 (13.51%) TCP/IP
6 22 (11.89%) DHCP
7 17 (9.19%) SAN
8 16 (8.65%) SSH
9 15 (8.11%) Network Security
10 14 (7.57%) Fibre Channel
11 12 (6.49%) HTTP
12 10 (5.41%) VLAN
13 8 (4.32%) HTTPS
13 8 (4.32%) Reverse Proxy
14 5 (2.70%) BGP
14 5 (2.70%) LAN
14 5 (2.70%) SSL
15 4 (2.16%) DSLAM
15 4 (2.16%) EIGRP
15 4 (2.16%) MPLS
Database & Business Intelligence
1 41 (22.16%) MySQL
2 40 (21.62%) PostgreSQL
3 16 (8.65%) SQL Server
4 15 (8.11%) NoSQL
5 10 (5.41%) Big Data
6 7 (3.78%) Hadoop
7 5 (2.70%) MariaDB
8 3 (1.62%) Amazon RDS
8 3 (1.62%) Relational Database
9 2 (1.08%) MongoDB
9 2 (1.08%) Neo4j
9 2 (1.08%) Oracle Database
10 1 (0.54%) Amazon Athena
10 1 (0.54%) Hazelcast
10 1 (0.54%) InfluxDB
10 1 (0.54%) RDBMS
10 1 (0.54%) SQL Server 2008
10 1 (0.54%) SQL Server 2012
10 1 (0.54%) SQL Server 2016
Development Applications
1 33 (17.84%) Git (software)
2 27 (14.59%) Jenkins
3 10 (5.41%) Atlassian Bamboo
4 7 (3.78%) Robot Framework
4 7 (3.78%) Selenium
5 6 (3.24%) JIRA
6 5 (2.70%) Subversion
7 4 (2.16%) GitLab
7 4 (2.16%) Vagrant
7 4 (2.16%) VSS/SourceSafe
8 3 (1.62%) Travis CI
9 2 (1.08%) CircleCI
10 1 (0.54%) Artifactory
10 1 (0.54%) Maven
10 1 (0.54%) Octopus Deploy
10 1 (0.54%) TeamCity
General
1 33 (17.84%) Finance
2 15 (8.11%) Public Sector
3 13 (7.03%) Marketing
4 8 (4.32%) Games
5 6 (3.24%) Electronics
5 6 (3.24%) Manufacturing
5 6 (3.24%) Telecoms
6 4 (2.16%) Aerospace
6 4 (2.16%) Legal
7 2 (1.08%) Retail
8 1 (0.54%) Automotive
8 1 (0.54%) Korean Language
Job Titles
1 39 (21.08%) Administrator
2 34 (18.38%) Linux Engineer
3 33 (17.84%) Network Engineer
4 26 (14.05%) Systems Administrator
5 21 (11.35%) Linux Administrator
5 21 (11.35%) Linux Systems Administrator
6 19 (10.27%) DevOps Engineer
6 19 (10.27%) Unix Administrator
7 18 (9.73%) Lead Network Engineer
8 17 (9.19%) Analyst
9 16 (8.65%) Linux/Unix DevOps
10 13 (7.03%) Applications Engineer
10 13 (7.03%) Applications Support
10 13 (7.03%) Applications Support Engineer
10 13 (7.03%) Support Engineer
11 11 (5.95%) Developer
11 11 (5.95%) DevOps Administrator
11 11 (5.95%) Support Analyst
12 10 (5.41%) Systems Engineer
13 9 (4.86%) Linux DevOps Administrator
Libraries, Frameworks & Software Standards
1 14 (7.57%) Django
2 13 (7.03%) AngularJS
2 13 (7.03%) LAMP
3 12 (6.49%) Web Services
4 10 (5.41%) HTML
5 9 (4.86%) CSS
5 9 (4.86%) jQuery
6 8 (4.32%) Elastic Stack
7 7 (3.78%) Apache NiFi
7 7 (3.78%) Symfony
7 7 (3.78%) Twitter Bootstrap
8 4 (2.16%) CGI
8 4 (2.16%) Java EE
8 4 (2.16%) LAPP Stack
9 3 (1.62%) Vue.js
10 2 (1.08%) 802.1X
10 2 (1.08%) Ajax
10 2 (1.08%) Apache Cordova
10 2 (1.08%) JSON
10 2 (1.08%) MEAN Stack
Miscellaneous
1 16 (8.65%) Data Centre
1 16 (8.65%) Linux Command Line
2 10 (5.41%) Clustering
3 9 (4.86%) PlayStation
4 7 (3.78%) Online Games
5 6 (3.24%) Public Cloud
6 5 (2.70%) Algorithms
7 4 (2.16%) IVR
8 3 (1.62%) Data Protection Act
8 3 (1.62%) Digital Media
8 3 (1.62%) User Experience
8 3 (1.62%) Video\Live Streaming
9 2 (1.08%) Fat Client
9 2 (1.08%) Mobile App
9 2 (1.08%) Thin Client
10 1 (0.54%) e-Learning
10 1 (0.54%) Hybrid Cloud
10 1 (0.54%) Internet of Things
10 1 (0.54%) PKI
10 1 (0.54%) Replication
Operating Systems
1 180 (97.30%) Linux
2 80 (43.24%) Red Hat Enterprise Linux
3 59 (31.89%) Ubuntu
4 49 (26.49%) Debian
5 39 (21.08%) Unix
6 31 (16.76%) Windows
7 20 (10.81%) Windows Server
8 19 (10.27%) Solaris
9 8 (4.32%) AIX
10 7 (3.78%) Windows 10
11 6 (3.24%) Windows 7
11 6 (3.24%) Windows Server 2008
12 4 (2.16%) Amazon Linux
13 3 (1.62%) DC/OS
14 2 (1.08%) SUSE
15 1 (0.54%) Android
15 1 (0.54%) Fedora
15 1 (0.54%) VMS
15 1 (0.54%) Windows 8
15 1 (0.54%) Windows Server 2012
Processes & Methodologies
1 49 (26.49%) DevOps
2 31 (16.76%) ITIL
3 24 (12.97%) Configuration Management
4 23 (12.43%) Project Delivery
5 20 (10.81%) Continuous Integration
6 19 (10.27%) Open Source
7 18 (9.73%) Cybersecurity
7 18 (9.73%) Service Management
8 17 (9.19%) Web Development
9 16 (8.65%) Computer Science
10 12 (6.49%) Benchmarking
11 11 (5.95%) Change Management
11 11 (5.95%) Deployment Automation
12 10 (5.41%) Mentoring
12 10 (5.41%) Software Engineering
13 9 (4.86%) Agile Software Development
13 9 (4.86%) Business Continuity
13 9 (4.86%) Load Balancing
13 9 (4.86%) MVC
13 9 (4.86%) Problem-Solving
Programming Languages
1 77 (41.62%) Python
2 47 (25.41%) Bash Shell
3 30 (16.22%) Shell Script
4 29 (15.68%) JavaScript
5 26 (14.05%) Java
6 25 (13.51%) C++
7 21 (11.35%) Korn
7 21 (11.35%) Perl
7 21 (11.35%) SQL
8 14 (7.57%) AWK
8 14 (7.57%) Bourne shell
8 14 (7.57%) Ruby
9 13 (7.03%) PHP
10 10 (5.41%) PowerShell
11 9 (4.86%) C
12 7 (3.78%) PHP 5
13 4 (2.16%) Go
14 1 (0.54%) Groovy
Qualifications
1 41 (22.16%) Degree
2 35 (18.92%) Security Cleared
3 32 (17.30%) Cisco Certification
4 23 (12.43%) CCNP
5 19 (10.27%) SC Cleared
6 13 (7.03%) RHCE
7 12 (6.49%) ITIL Foundation Certificate
8 9 (4.86%) OCA
8 9 (4.86%) OCP
8 9 (4.86%) Oracle Certification
8 9 (4.86%) RHCSA
9 5 (2.70%) DV Cleared
10 4 (2.16%) Microsoft Certification
11 2 (1.08%) RHCA
12 1 (0.54%) AWS Certification
12 1 (0.54%) CCDP
12 1 (0.54%) CCNA
12 1 (0.54%) MCSE
Quality Assurance & Compliance
1 15 (8.11%) PCI DSS
2 9 (4.86%) SLA
3 6 (3.24%) ISO/IEC 27001
4 2 (1.08%) GDPR
4 2 (1.08%) NIST
5 1 (0.54%) QA
System Software
1 27 (14.59%) Hyper-V
2 26 (14.05%) VMware Infrastructure
3 24 (12.97%) Docker
4 23 (12.43%) Active Directory
5 15 (8.11%) VMware ESXi
6 14 (7.57%) Veritas Cluster Server
7 9 (4.86%) iptables
7 9 (4.86%) KVM
8 8 (4.32%) Firmware
9 7 (3.78%) GlusterFS
10 4 (2.16%) Apache ZooKeeper
10 4 (2.16%) etcd
10 4 (2.16%) Squid
10 4 (2.16%) Virtual Machines
11 3 (1.62%) VirtualBox
11 3 (1.62%) vSphere
11 3 (1.62%) XenDesktop
12 2 (1.08%) Virtual Desktop
13 1 (0.54%) Kamailio
13 1 (0.54%) VMware NSX
Systems Management
1 53 (28.65%) Ansible
2 38 (20.54%) Puppet
3 30 (16.22%) Nagios
4 28 (15.14%) Terraform
5 25 (13.51%) Opscode Chef
6 21 (11.35%) Red Hat Satellite
7 15 (8.11%) Red Hat Spacewalk
8 14 (7.57%) NetBackup
8 14 (7.57%) Oracle ZFS
9 13 (7.03%) Kubernetes
10 12 (6.49%) SELinux
11 9 (4.86%) WSUS
12 8 (4.32%) Docker Swarm
12 8 (4.32%) Perfmon
13 7 (3.78%) Ambari
13 7 (3.78%) Packer
13 7 (3.78%) Veritas Storage Foundation
14 6 (3.24%) Grafana
14 6 (3.24%) HAProxy
15 5 (2.70%) vCenter Server
Vendors
1 76 (41.08%) Red Hat
2 61 (32.97%) VMware
3 43 (23.24%) Cisco
4 38 (20.54%) Brocade
5 28 (15.14%) Palo Alto
6 24 (12.97%) CheckPoint
6 24 (12.97%) Riverbed
7 23 (12.43%) Microsoft
8 19 (10.27%) Oracle
9 15 (8.11%) HP
10 14 (7.57%) Centrify
10 14 (7.57%) Sun
10 14 (7.57%) Veritas
11 8 (4.32%) CA
11 8 (4.32%) EMC
12 7 (3.78%) Google
12 7 (3.78%) Splunk
12 7 (3.78%) StorageTek
12 7 (3.78%) Zend
13 6 (3.24%) Dell