Period
to 23 February 2018

The following table provides summary statistics for permanent job vacancies advertised in the East of England 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 > East of England
6 months to
23 Feb 2018
Same period 2017 Same period 2016
Rank 317 323 363
Rank change year-on-year +6 +40 -16
Permanent jobs citing CentOS 48 41 34
As % of all permanent IT jobs advertised in the East of England 0.38% 0.32% 0.23%
As % of the Operating Systems category 1.38% 1.33% 0.87%
Number of salaries quoted 38 40 33
East of England median annual salary £60,000 £45,000 £38,000
Median salary % change year-on-year +33.33% +18.42% -24.00%
10th Percentile £36,250 £41,875 £27,500
90th Percentile £78,125 £53,750 £56,500
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 East of England with a requirement for operating system skills.

All Operating Systems
East of England
Permanent vacancies with a requirement for operating system skills 3,488 3,082 3,886
As % of all permanent IT jobs advertised in the East of England 27.84% 24.38% 25.84%
Number of salaries quoted 2,746 2,482 3,173
East of England median annual salary £45,000 £42,500 £40,000
Median salary % change year-on-year +5.88% +6.25% -
10th Percentile £24,000 £24,250 £23,000
90th Percentile £70,000 £63,750 £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 East of England

Job postings citing CentOS as a percentage of all IT jobs advertised in the East of England.

Job vacancy trend for CentOS in the East of England

CentOS
Salary Trend in the East of England

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

Salary trend for CentOS in the East of England

CentOS
Salary Histogram in the East of England

The salary distribution of IT jobs citing CentOS in the East of England over the 6 months to 23 February 2018.

Salary histogram for CentOS in the East of England

CentOS
Job Locations in the East of England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the East of England 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
Hertfordshire +10 32 £65,000 +44.44% 4
Cambridgeshire -37 10 £47,500 -2.06% 9
Bedfordshire +31 2 £47,500 +46.15%
Essex +19 2 £50,000 +3.09% 1
Suffolk +10 2 £55,000 +22.22%
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 East of England region with a requirement for CentOS.

1 48 (100.00%) Linux
2 35 (72.92%) Red Hat
3 33 (68.75%) VMware
4 30 (62.50%) Amazon AWS
5 28 (58.33%) Python
6 27 (56.25%) Ubuntu
7 24 (50.00%) Puppet
7 24 (50.00%) Red Hat Enterprise Linux
8 23 (47.92%) Opscode Chef
8 23 (47.92%) DevOps
9 21 (43.75%) Bash Shell
10 20 (41.67%) Kubernetes
11 19 (39.58%) Data Centre
11 19 (39.58%) Ansible
11 19 (39.58%) Microsoft Azure
11 19 (39.58%) Windows
12 18 (37.50%) VMware Infrastructure
13 17 (35.42%) DNS
14 16 (33.33%) TCP/IP
14 16 (33.33%) Google
15 15 (31.25%) Docker
16 14 (29.17%) Java
17 12 (25.00%) DHCP
17 12 (25.00%) E-Commerce
17 12 (25.00%) Windows Server
18 11 (22.92%) vSphere
18 11 (22.92%) Active Directory
19 10 (20.83%) MySQL
19 10 (20.83%) ITIL
20 9 (18.75%) Unix

CentOS
Co-occurring IT Skills in the East of England 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 5 (10.42%) Apache
1 5 (10.42%) Skype for Business
2 2 (4.17%) Confluence
2 2 (4.17%) JBoss
2 2 (4.17%) Tomcat
3 1 (2.08%) IIS
3 1 (2.08%) nginx
3 1 (2.08%) OpenStack
Applications
1 5 (10.42%) Microsoft Office
Cloud Services
1 30 (62.50%) Amazon AWS
2 19 (39.58%) Microsoft Azure
3 8 (16.67%) Office 365
4 5 (10.42%) AWS CloudFormation
4 5 (10.42%) Cloud Computing
5 4 (8.33%) Google Cloud Platform
6 3 (6.25%) SaaS
7 2 (4.17%) Amazon CloudWatch
7 2 (4.17%) Amazon ElastiCache
7 2 (4.17%) Amazon S3
7 2 (4.17%) AWS Lambda
7 2 (4.17%) PaaS
7 2 (4.17%) Route 53
7 2 (4.17%) Serverless
7 2 (4.17%) Virtual Private Cloud
8 1 (2.08%) Azure Active Directory
8 1 (2.08%) GitHub
Communications & Networking
1 17 (35.42%) DNS
2 16 (33.33%) TCP/IP
3 12 (25.00%) DHCP
4 6 (12.50%) Firewall
5 5 (10.42%) Remote Desktop
5 5 (10.42%) Skype
5 5 (10.42%) VPN
6 4 (8.33%) Fibre Channel
7 2 (4.17%) HTTP
8 1 (2.08%) Cisco ASA
8 1 (2.08%) Internet
8 1 (2.08%) LAN
8 1 (2.08%) Network Security
8 1 (2.08%) OpenVPN
8 1 (2.08%) SAN
8 1 (2.08%) SMS
8 1 (2.08%) VLAN
8 1 (2.08%) VoIP
8 1 (2.08%) VSAT
8 1 (2.08%) WAN
Database & Business Intelligence
1 10 (20.83%) MySQL
2 6 (12.50%) Oracle Database
3 5 (10.42%) MongoDB
3 5 (10.42%) NoSQL
3 5 (10.42%) SQL Server
4 4 (8.33%) PostgreSQL
5 3 (6.25%) Relational Database
6 2 (4.17%) Amazon RDS
6 2 (4.17%) DB2
6 2 (4.17%) Hazelcast
7 1 (2.08%) Hadoop
7 1 (2.08%) MariaDB
Development Applications
1 6 (12.50%) Jenkins
2 3 (6.25%) GCC
2 3 (6.25%) GDB
2 3 (6.25%) Git (software)
2 3 (6.25%) ProC
2 3 (6.25%) Visual Studio
3 2 (4.17%) Atlassian Bamboo
3 2 (4.17%) Eclipse
3 2 (4.17%) Hudson
3 2 (4.17%) IntelliJ
3 2 (4.17%) JIRA
3 2 (4.17%) JMeter
3 2 (4.17%) Subversion
3 2 (4.17%) Vagrant
3 2 (4.17%) VSS/SourceSafe
3 2 (4.17%) WebStorm
4 1 (2.08%) GitLab
4 1 (2.08%) Selenium
4 1 (2.08%) TeamCity
General
1 5 (10.42%) Finance
2 2 (4.17%) Games
2 2 (4.17%) Pharmaceutical
3 1 (2.08%) Telecoms
Job Titles
1 17 (35.42%) Systems Administrator
2 16 (33.33%) Linux Systems Administrator
3 13 (27.08%) Administrator
4 12 (25.00%) Linux Administrator
5 11 (22.92%) Linux Engineer
6 8 (16.67%) Cloud Engineer
6 8 (16.67%) Linux Systems Engineer
6 8 (16.67%) Systems Engineer
7 7 (14.58%) Analyst
7 7 (14.58%) Linux/Unix DevOps
8 6 (12.50%) Support Analyst
9 5 (10.42%) Desktop Analyst
9 5 (10.42%) Desktop Support
9 5 (10.42%) Desktop Support Analyst
9 5 (10.42%) DevOps Engineer
10 4 (8.33%) Oracle DBA
10 4 (8.33%) Senior Linux Administrator
10 4 (8.33%) Senior Linux Engineer
10 4 (8.33%) Senior Linux Systems Administrator
10 4 (8.33%) Senior Systems Administrator
Libraries, Frameworks & Software Standards
1 3 (6.25%) ADO
1 3 (6.25%) J2SE
1 3 (6.25%) ODBC
2 2 (4.17%) CSS
2 2 (4.17%) HTML
2 2 (4.17%) HTML5
2 2 (4.17%) J2EE
2 2 (4.17%) Java EE
2 2 (4.17%) Java SE
2 2 (4.17%) JMS
2 2 (4.17%) jQuery
2 2 (4.17%) JSP
2 2 (4.17%) Node.js
2 2 (4.17%) Spring
2 2 (4.17%) Twitter Bootstrap
2 2 (4.17%) Web Services
3 1 (2.08%) Apache Commons
3 1 (2.08%) LAPP Stack
3 1 (2.08%) LEMP Stack
3 1 (2.08%) REST
Miscellaneous
1 19 (39.58%) Data Centre
2 7 (14.58%) Analytical Skills
3 5 (10.42%) Handset
4 3 (6.25%) Public Cloud
5 2 (4.17%) Life Science
5 2 (4.17%) Management Information System
6 1 (2.08%) Clustering
6 1 (2.08%) Computer Science
6 1 (2.08%) Distributed Denial-of-Service
6 1 (2.08%) Internet of Things
6 1 (2.08%) iSeries
6 1 (2.08%) Robotics
6 1 (2.08%) Smart City
Operating Systems
1 48 (100.00%) Linux
2 27 (56.25%) Ubuntu
3 24 (50.00%) Red Hat Enterprise Linux
4 19 (39.58%) Windows
5 12 (25.00%) Windows Server
6 9 (18.75%) Unix
7 8 (16.67%) Windows Server 2012
8 7 (14.58%) Windows Server 2008
9 5 (10.42%) Mac OS
9 5 (10.42%) SUSE
10 4 (8.33%) Windows 10
10 4 (8.33%) Windows 7
11 3 (6.25%) Solaris
12 2 (4.17%) CoreOS
12 2 (4.17%) DC/OS
13 1 (2.08%) Amazon Linux
13 1 (2.08%) Debian
13 1 (2.08%) Mac OS X
Processes & Methodologies
1 23 (47.92%) DevOps
2 12 (25.00%) E-Commerce
3 10 (20.83%) ITIL
4 6 (12.50%) Agile Software Development
5 5 (10.42%) Information Security
5 5 (10.42%) Mentoring
5 5 (10.42%) Proactive Management
5 5 (10.42%) Problem Management
5 5 (10.42%) Software Engineering
6 4 (8.33%) Business Continuity
6 4 (8.33%) Patch Management
6 4 (8.33%) Security Patching
7 3 (6.25%) Configuration Management
7 3 (6.25%) Continuous Integration
7 3 (6.25%) High Availability
7 3 (6.25%) Migration
7 3 (6.25%) Open Source
8 2 (4.17%) Re-Platforming
8 2 (4.17%) Scrum
9 1 (2.08%) Continuous Deployment
Programming Languages
1 28 (58.33%) Python
2 21 (43.75%) Bash Shell
3 14 (29.17%) Java
4 8 (16.67%) SQL
5 5 (10.42%) Perl
5 5 (10.42%) Shell Script
6 4 (8.33%) C
6 4 (8.33%) C++
6 4 (8.33%) PHP
6 4 (8.33%) PowerShell
6 4 (8.33%) Ruby
7 2 (4.17%) JavaScript
Qualifications
1 3 (6.25%) Degree
2 1 (2.08%) CCNA
2 1 (2.08%) Cisco Certification
2 1 (2.08%) Computer Science Degree
2 1 (2.08%) DV Cleared
2 1 (2.08%) Security Cleared
Quality Assurance & Compliance
1 1 (2.08%) ISO/IEC 27001
1 1 (2.08%) PCI DSS
1 1 (2.08%) SLA
System Software
1 18 (37.50%) VMware Infrastructure
2 15 (31.25%) Docker
3 11 (22.92%) Active Directory
3 11 (22.92%) vSphere
4 5 (10.42%) Hyper-V
4 5 (10.42%) Terminal Services
4 5 (10.42%) VMware ESXi
4 5 (10.42%) VMware Workstation
5 2 (4.17%) Virtual Machines
6 1 (2.08%) KVM
6 1 (2.08%) LXC
6 1 (2.08%) NFS
6 1 (2.08%) XenServer
Systems Management
1 24 (50.00%) Puppet
2 23 (47.92%) Opscode Chef
3 20 (41.67%) Kubernetes
4 19 (39.58%) Ansible
5 5 (10.42%) vCenter Server
6 4 (8.33%) Docker Swarm
7 3 (6.25%) Mesos
7 3 (6.25%) Nagios
7 3 (6.25%) Terraform
8 2 (4.17%) Marathon
9 1 (2.08%) Grafana
9 1 (2.08%) HAProxy
9 1 (2.08%) Microsoft Clustering
9 1 (2.08%) Munin
9 1 (2.08%) Salt
9 1 (2.08%) SCCM
9 1 (2.08%) Tivoli
9 1 (2.08%) Tivoli Storage Manager
9 1 (2.08%) ZABBIX
Vendors
1 35 (72.92%) Red Hat
2 33 (68.75%) VMware
3 16 (33.33%) Google
4 9 (18.75%) Oracle
5 6 (12.50%) Microsoft
6 4 (8.33%) 3PAR
7 3 (6.25%) Sun
8 2 (4.17%) Atlassian
8 2 (4.17%) Cisco
8 2 (4.17%) NetApp
9 1 (2.08%) AlienVault
9 1 (2.08%) Blue Coat
9 1 (2.08%) Capita
9 1 (2.08%) CheckPoint
9 1 (2.08%) F5
9 1 (2.08%) Hortonworks
9 1 (2.08%) Juniper
9 1 (2.08%) Nokia
9 1 (2.08%) Sybase
9 1 (2.08%) Veeam