The table below looks at the statistics for CentOS skills in IT jobs advertised for the Berkshire region. Included is a guide to the salaries offered in IT jobs that have cited CentOS over the 3 months to 18 January 2017 with a comparison to the same period over the previous 2 years.

3 months to
18 Jan 2017
Same period 2016 Same period 2015
CentOS Linux
South East / Berkshire
Rank 90 169 175
Rank change year-on-year
+79 +6
Permanent jobs citing CentOS 101 60 51
As % of all permanent IT jobs located in Berkshire 2.74% 1.12% 0.96%
As % of the Operating Systems category 9.47% 4.66% 3.11%
Number of salaries quoted 91 58 40
Median salary £52,500 £52,500 £42,000
Median salary % change year-on-year
- +25.00%
90% offered a salary of more than £37,500 £28,000 £22,000
10% offered a salary of more than £80,000 £62,500 £52,750
UK excluding London median salary £45,500 £45,000 £41,250
% change year-on-year
+1.11% +9.09%

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in permanent jobs advertised in the Berkshire region.

Operating Systems Category
Berkshire
Permanent IT job ads with a match in the
Operating Systems category
1067 1288 1642
As % of all permanent IT jobs located in Berkshire 28.99% 24.07% 31.04%
Number of salaries quoted 887 1141 1193
Median salary £45,000 £45,000 £40,000
Median salary % change year-on-year
- +12.50%
90% offered a salary of more than £26,000 £28,000 £25,500
10% offered a salary of more than £67,500 £60,000 £62,500
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Jobs Demand Trend in Berkshire

The demand trend of job ads across the Berkshire region citing CentOS as a proportion of all IT jobs with a match in the Operating Systems category.

CentOS Jobs Demand Trend in Berkshire

CentOS
Salary Trend in Berkshire

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS across the Berkshire region.

CentOS Salary Trend in Berkshire

CentOS
Salary Histogram in Berkshire

This chart provides a salary histogram for IT jobs citing CentOS across the Berkshire region over the 3 months to 18 January 2017.

CentOS Salary Histogram in Berkshire

CentOS
Job Locations in Berkshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the Berkshire region over the 3 months to 18 January 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Reading +44 41 £50,000 +25.00% 4
Slough +53 21 £70,000 +33.33%
Maidenhead +14 12 £37,500 -6.25% 2
Windsor - 7 £60,000 -
Bracknell +13 1 £47,500 +18.75%
CentOS
South East

CentOS
Top 30 Related IT Skills in Berkshire

For the 6 months to 18 January 2017, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Berkshire region with a requirement for CentOS.

1 122 (100.00%) Linux
2 59 (48.36%) Windows
3 55 (45.08%) Red Hat
4 46 (37.70%) Python
5 43 (35.25%) Java
6 40 (32.79%) Red Hat Enterprise Linux
7 34 (27.87%) Puppet
8 33 (27.05%) Active Directory
9 31 (25.41%) Bash Shell
10 30 (24.59%) Open Source
10 30 (24.59%) SQL Server
11 29 (23.77%) MySQL
11 29 (23.77%) Hadoop
11 29 (23.77%) Ubuntu
11 29 (23.77%) Windows Server
12 27 (22.13%) Elasticsearch
12 27 (22.13%) Opscode Chef
13 26 (21.31%) Amazon AWS
13 26 (21.31%) Oracle
13 26 (21.31%) CISSP
14 25 (20.49%) DevOps
15 24 (19.67%) Apache
15 24 (19.67%) SQL
16 23 (18.85%) Unix
16 23 (18.85%) Big Data
17 21 (17.21%) Analytics
17 21 (17.21%) Mentoring
17 21 (17.21%) Cybersecurity
17 21 (17.21%) Git (software)
18 20 (16.39%) TCP/IP

CentOS
Top Related IT Skills in Berkshire 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 27 (22.13%) Elasticsearch
2 24 (19.67%) Apache
3 11 (9.02%) nginx
4 8 (6.56%) Tomcat
5 6 (4.92%) JBoss
5 6 (4.92%) WebLogic
5 6 (4.92%) WebSphere
6 5 (4.10%) IIS
7 3 (2.46%) MQSeries
7 3 (2.46%) MS Exchange
8 1 (0.82%) Exchange Server 2010
8 1 (0.82%) IBM Notes
Applications
1 1 (0.82%) MS Excel
1 1 (0.82%) MS Office
Business Applications
1 3 (2.46%) Eloqua
1 3 (2.46%) Oracle EBS
2 2 (1.64%) SAP Oil and Gas
Cloud Services
1 26 (21.31%) Amazon AWS
2 17 (13.93%) SaaS
3 14 (11.48%) Microsoft Azure
4 8 (6.56%) PaaS
5 6 (4.92%) Office 365
6 4 (3.28%) Amazon EC2
6 4 (3.28%) Oracle CX
7 3 (2.46%) Responsys
7 3 (2.46%) Taleo
8 2 (1.64%) IaaS
9 1 (0.82%) IBM Cloud
9 1 (0.82%) SoftLayer
Communications & Networking
1 20 (16.39%) TCP/IP
2 13 (10.66%) Firewall
3 8 (6.56%) Network Security
4 7 (5.74%) DNS
5 6 (4.92%) SAN
6 5 (4.10%) SSH
7 4 (3.28%) DHCP
7 4 (3.28%) SSL
8 3 (2.46%) CTI
8 3 (2.46%) LDAP
8 3 (2.46%) WebEx
9 2 (1.64%) HTTP
9 2 (1.64%) ICMP
9 2 (1.64%) Software-Defined Networking
10 1 (0.82%) LAN
10 1 (0.82%) PBX
10 1 (0.82%) SMTP
10 1 (0.82%) VoIP
10 1 (0.82%) VPN
10 1 (0.82%) WAN
Database & Business Intelligence
1 30 (24.59%) SQL Server
2 29 (23.77%) Hadoop
2 29 (23.77%) MySQL
3 23 (18.85%) Big Data
4 20 (16.39%) NoSQL
5 8 (6.56%) Apache Cassandra
5 8 (6.56%) MongoDB
5 8 (6.56%) Neo4j
5 8 (6.56%) Pentaho
5 8 (6.56%) PostgreSQL
6 6 (4.92%) Azure SQL Database
7 4 (3.28%) InfluxDB
7 4 (3.28%) Oracle Database
8 3 (2.46%) DB2
8 3 (2.46%) Oracle Reports
8 3 (2.46%) RDBMS
8 3 (2.46%) Relational Database
9 2 (1.64%) Informix
9 2 (1.64%) SQL Server 2005
9 2 (1.64%) SQL Server 2008
Development Applications
1 21 (17.21%) Git (software)
2 11 (9.02%) Jenkins
3 8 (6.56%) Talend Open Studio
4 7 (5.74%) Vagrant
5 6 (4.92%) Subversion
6 4 (3.28%) JIRA
7 1 (0.82%) Bugzilla
7 1 (0.82%) Trac
General
1 9 (7.38%) Finance
1 9 (7.38%) Games
1 9 (7.38%) German Language
2 8 (6.56%) Marketing
3 7 (5.74%) Electronics
4 5 (4.10%) French Language
5 4 (3.28%) Banking
5 4 (3.28%) Manufacturing
6 2 (1.64%) Advertising
6 2 (1.64%) Military
6 2 (1.64%) Telecoms
Job Titles
1 24 (19.67%) Support Engineer
2 21 (17.21%) Linux Engineer
3 17 (13.93%) Administrator
4 16 (13.11%) Applications Support
4 16 (13.11%) Systems Administrator
5 14 (11.48%) DevOps Engineer
5 14 (11.48%) IT Engineer
6 13 (10.66%) Infrastructure Engineer
7 12 (9.84%) Developer
8 11 (9.02%) Security Engineer
9 10 (8.20%) Linux Administrator
10 9 (7.38%) Linux Systems Administrator
10 9 (7.38%) Open Source Developer
10 9 (7.38%) Security Support Engineer
11 8 (6.56%) Architect
11 8 (6.56%) Azure Architect
11 8 (6.56%) Cloud Architect
11 8 (6.56%) Support Specialist
12 7 (5.74%) Cybersecurity Engineer
12 7 (5.74%) WebOps Engineer
Libraries, Frameworks & Software Standards
1 18 (14.75%) .NET
2 12 (9.84%) Web Services
3 11 (9.02%) LAMP
4 10 (8.20%) AngularJS
4 10 (8.20%) ZeroMQ
5 9 (7.38%) Middleware
6 8 (6.56%) ActiveMQ
6 8 (6.56%) Apache Camel
6 8 (6.56%) Apache CXF
6 8 (6.56%) D3.js
6 8 (6.56%) Drools
6 8 (6.56%) ELK Stack
6 8 (6.56%) jBPM
6 8 (6.56%) Node.js
7 7 (5.74%) JSON
8 3 (2.46%) Oracle Fusion
8 3 (2.46%) Spring
8 3 (2.46%) WebSphere MQ
9 2 (1.64%) ASP.NET
9 2 (1.64%) J2EE
Miscellaneous
1 15 (12.30%) Data Centre
2 11 (9.02%) Cyberthreat
3 8 (6.56%) Analytical Skills
4 7 (5.74%) Computer Science
4 7 (5.74%) Mobile App
5 5 (4.10%) Fintech
6 4 (3.28%) Enterprise Software
7 3 (2.46%) Management Information System
7 3 (2.46%) Statistics
8 2 (1.64%) Biology
8 2 (1.64%) Chemistry
8 2 (1.64%) Physics
8 2 (1.64%) Replication
9 1 (0.82%) Celerra
9 1 (0.82%) EMC VNX
Operating Systems
1 122 (100.00%) Linux
2 59 (48.36%) Windows
3 40 (32.79%) Red Hat Enterprise Linux
4 29 (23.77%) Ubuntu
4 29 (23.77%) Windows Server
5 23 (18.85%) Unix
6 18 (14.75%) Debian
7 14 (11.48%) Oracle Linux
8 13 (10.66%) Windows Server 2008
8 13 (10.66%) Windows Server 2012
9 7 (5.74%) Solaris
10 5 (4.10%) Windows 8
11 3 (2.46%) AIX
11 3 (2.46%) HPUX
12 1 (0.82%) Mac OS X
12 1 (0.82%) SUSE
Processes & Methodologies
1 30 (24.59%) Open Source
2 25 (20.49%) DevOps
3 21 (17.21%) Analytics
3 21 (17.21%) Cybersecurity
3 21 (17.21%) Mentoring
4 18 (14.75%) Agile Software Development
5 17 (13.93%) ITIL
6 16 (13.11%) Scrum
7 13 (10.66%) Presales
8 11 (9.02%) Configuration Management
8 11 (9.02%) Microservices
8 11 (9.02%) Open Source Development
9 10 (8.20%) SIEM
10 9 (7.38%) Digital Forensics
10 9 (7.38%) High Availability
11 8 (6.56%) BDD
11 8 (6.56%) Cyber Intelligence
11 8 (6.56%) PRINCE2
11 8 (6.56%) TDD
12 7 (5.74%) TOGAF
Programming Languages
1 46 (37.70%) Python
2 43 (35.25%) Java
3 31 (25.41%) Bash Shell
4 24 (19.67%) SQL
5 18 (14.75%) Shell Script
6 17 (13.93%) C
7 11 (9.02%) Perl
8 9 (7.38%) PowerShell
9 8 (6.56%) Jython
10 7 (5.74%) PHP
11 6 (4.92%) Groovy
11 6 (4.92%) JavaScript
12 3 (2.46%) PL/SQL
12 3 (2.46%) Tcl
13 1 (0.82%) Ruby
Qualifications
1 26 (21.31%) CISSP
2 19 (15.57%) CEH
2 19 (15.57%) GCIA
3 15 (12.30%) Security Cleared
4 10 (8.20%) Degree
4 10 (8.20%) SC Cleared
5 6 (4.92%) CCNA
5 6 (4.92%) Cisco Certification
5 6 (4.92%) MCSE
5 6 (4.92%) Microsoft Certification
5 6 (4.92%) VMware Certified Professional (VCP)
6 5 (4.10%) GCIH
7 4 (3.28%) AWS Certification
8 1 (0.82%) HND
8 1 (0.82%) MCP
Quality Assurance & Compliance
1 8 (6.56%) ISO/IEC 27001
System Software
1 33 (27.05%) Active Directory
2 14 (11.48%) KVM
3 12 (9.84%) VMware Infrastructure
4 11 (9.02%) XenServer
5 9 (7.38%) Docker
6 8 (6.56%) Hyper-V
7 5 (4.10%) Varnish
7 5 (4.10%) vSphere
7 5 (4.10%) Xen
8 3 (2.46%) VMware ESXi
9 1 (0.82%) Firmware
9 1 (0.82%) VirtualBox
Systems Management
1 34 (27.87%) Puppet
2 27 (22.13%) Opscode Chef
3 15 (12.30%) Ansible
4 12 (9.84%) Grafana
5 10 (8.20%) Salt
6 7 (5.74%) Kubernetes
7 6 (4.92%) Nagios
8 5 (4.10%) Oracle Enterprise Manager
9 4 (3.28%) Graphite
9 4 (3.28%) Terraform
10 3 (2.46%) ZABBIX
11 2 (1.64%) Backup Exec
11 2 (1.64%) Cobbler
11 2 (1.64%) HP Data Protector
11 2 (1.64%) Legato
11 2 (1.64%) NetBackup
11 2 (1.64%) SELinux
12 1 (0.82%) EMC NetWorker
12 1 (0.82%) Oracle RMAN
12 1 (0.82%) SnapMirror
Vendors
1 55 (45.08%) Red Hat
2 26 (21.31%) Oracle
3 19 (15.57%) VMware
4 18 (14.75%) Google
5 13 (10.66%) Microsoft
5 13 (10.66%) Sun
6 10 (8.20%) Apple
7 9 (7.38%) Veeam
8 8 (6.56%) Talend
8 8 (6.56%) Teradata
9 6 (4.92%) EMC
9 6 (4.92%) SolarWinds
10 5 (4.10%) Cisco
11 4 (3.28%) ServiceNow
12 3 (2.46%) Juniper
12 3 (2.46%) NetApp
12 3 (2.46%) SAP
12 3 (2.46%) Sybase
12 3 (2.46%) Veritas
13 2 (1.64%) CommVault
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