The table below looks at the statistics for CentOS skills in IT jobs advertised for the City of London region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 4 August 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
4 Aug 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 255 274 281
Rank change year-on-year
+19 +7
Permanent jobs citing CentOS 52 68 53
As % of all permanent IT jobs located in the City of London 0.50% 0.55% 0.44%
As % of the Operating Systems category 2.10% 2.07% 1.62%
Number of salaries quoted 48 67 47
Average salary £55,000 £45,000 £50,000
Average salary % change year-on-year
+22.22% -10.00%
90% offered a salary of more than £37,500 £40,000 £40,000
10% offered a salary of more than £70,000 £61,000 £66,000
UK excluding London average salary £42,500 £40,750 £38,500
% change year-on-year
+4.29% +5.84%
CentOS
London

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

Operating Systems Category
City of London
Permanent IT job ads with a match in the
Operating Systems category
2477 3286 3269
As % of all permanent IT jobs located in the City of London 23.94% 26.74% 27.42%
Number of salaries quoted 2124 2875 2933
Average salary £50,000 £50,000 £50,000
90% offered a salary of more than £29,000 £28,500 £32,500
10% offered a salary of more than £75,000 £72,500 £72,500
UK excluding London average salary £37,500 £37,000 £37,500
% change year-on-year
+1.35% -1.33%

CentOS
Jobs Demand Trend in the City of London

This chart provides a 3-month moving total of permanent IT jobs citing CentOS across the City of London region as a proportion of the total demand within the Operating Systems category.

CentOS Jobs Demand Trend in the City of London

CentOS
Salary Trend in the City of London

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

CentOS Salary Trend in the City of London

CentOS
Salary Histogram in the City of London

This chart provides a salary histogram for IT jobs citing CentOS across the City of London region over the 3 months to 4 August 2015.

CentOS Salary Histogram in the City of London

CentOS
Top 30 Related IT Skills in the City of London

For the 6 months to 4 August 2015, IT jobs across the City of London region citing CentOS also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited CentOS.

1 94 (94.00%) Linux
2 59 (59.00%) VMware
3 54 (54.00%) Red Hat
4 44 (44.00%) Windows
4 44 (44.00%) Bash Shell
5 42 (42.00%) MySQL
6 39 (39.00%) Puppet
7 38 (38.00%) Red Hat Enterprise Linux
7 38 (38.00%) VMware Infrastructure
8 37 (37.00%) Apache
9 34 (34.00%) Opscode Chef
10 33 (33.00%) Python
11 31 (31.00%) Git (software)
12 30 (30.00%) Firewall
13 28 (28.00%) Ubuntu
13 28 (28.00%) DevOps
14 27 (27.00%) Cisco
15 25 (25.00%) DNS
15 25 (25.00%) Java
16 24 (24.00%) PHP
16 24 (24.00%) Debian
17 23 (23.00%) Finance
17 23 (23.00%) VPN
18 22 (22.00%) SQL
18 22 (22.00%) LAMP
18 22 (22.00%) Microsoft
18 22 (22.00%) Ruby
19 19 (19.00%) Citrix
19 19 (19.00%) SQL Server
19 19 (19.00%) Perl

CentOS
Top Related IT Skills in the City of London by Category

For the 6 months to 4 August 2015, IT jobs across the City of London region citing CentOS also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited CentOS. Up to 20 skills are shown per category.

Application Platforms
1 37 (37.00%) Apache
2 17 (17.00%) nginx
3 11 (11.00%) IIS
3 11 (11.00%) Tomcat
4 10 (10.00%) Elasticsearch
5 9 (9.00%) SharePoint
6 7 (7.00%) Confluence
7 5 (5.00%) MediaWiki
7 5 (5.00%) JBoss
8 4 (4.00%) Adobe Experience Manager
9 3 (3.00%) Node.js
9 3 (3.00%) MS Exchange
9 3 (3.00%) Drupal
10 1 (1.00%) GlassFish
10 1 (1.00%) Jetty
10 1 (1.00%) Mule
10 1 (1.00%) NetWeaver
10 1 (1.00%) OpenStack
10 1 (1.00%) Apache Solr
Applications
1 2 (2.00%) MS Excel
2 1 (1.00%) Photoshop
Business Applications
1 2 (2.00%) Magento
Cloud Services
1 16 (16.00%) Amazon AWS
2 4 (4.00%) Amazon EC2
3 2 (2.00%) Amazon S3
3 2 (2.00%) Amazon SQS
3 2 (2.00%) Route 53
4 1 (1.00%) Amazon ELB
4 1 (1.00%) SoftLayer
4 1 (1.00%) AWS CloudFormation
4 1 (1.00%) Amazon CloudWatch
4 1 (1.00%) AWS Elastic Beanstalk
4 1 (1.00%) Cloud Computing
Communications & Networking
1 30 (30.00%) Firewall
2 25 (25.00%) DNS
3 23 (23.00%) VPN
4 15 (15.00%) TCP/IP
5 14 (14.00%) BGP
6 13 (13.00%) SAN
7 12 (12.00%) LDAP
7 12 (12.00%) WAN
7 12 (12.00%) VLAN
7 12 (12.00%) Network Security
8 11 (11.00%) DHCP
8 11 (11.00%) VoIP
9 10 (10.00%) OSPF
10 8 (8.00%) IPsec
11 7 (7.00%) iSCSI
11 7 (7.00%) Cisco ASA
11 7 (7.00%) Fibre Channel
12 6 (6.00%) EIGRP
13 5 (5.00%) IPv6
13 5 (5.00%) LAN
Database & Business Intelligence
1 42 (42.00%) MySQL
2 19 (19.00%) SQL Server
3 13 (13.00%) MongoDB
4 12 (12.00%) PostgreSQL
5 8 (8.00%) Redis
6 7 (7.00%) CouchDB
6 7 (7.00%) Relational Database
7 3 (3.00%) NoSQL
8 2 (2.00%) Ingres
8 2 (2.00%) Amazon RDS
8 2 (2.00%) MariaDB
9 1 (1.00%) Amazon DynamoDB
9 1 (1.00%) SQL Server 2008
9 1 (1.00%) SQL Server 2012
Development Applications
1 31 (31.00%) Git (software)
2 15 (15.00%) Subversion
3 14 (14.00%) Jenkins
4 8 (8.00%) Mercurial
5 7 (7.00%) Hudson
5 7 (7.00%) JIRA
6 6 (6.00%) Maven
7 5 (5.00%) TeamCity
8 2 (2.00%) Atlassian Bamboo
8 2 (2.00%) Grunt
8 2 (2.00%) Bower
8 2 (2.00%) Gradle
9 1 (1.00%) GitLab
9 1 (1.00%) Trac
9 1 (1.00%) Selenium
9 1 (1.00%) Ant
9 1 (1.00%) JUnit
9 1 (1.00%) Eclipse
9 1 (1.00%) Behat
9 1 (1.00%) Team Foundation Server
General
1 23 (23.00%) Finance
2 15 (15.00%) Telecoms
3 12 (12.00%) Advertising
4 7 (7.00%) Banking
5 3 (3.00%) Retail
5 3 (3.00%) Marketing
6 2 (2.00%) Back Office
7 1 (1.00%) Legal
7 1 (1.00%) German Language
7 1 (1.00%) Games
Job Titles
1 30 (30.00%) Administrator
2 28 (28.00%) Systems Administrator
3 19 (19.00%) DevOps Engineer
4 12 (12.00%) Consultant
4 12 (12.00%) Developer
4 12 (12.00%) Linux Administrator
5 9 (9.00%) Linux Systems Administrator
5 9 (9.00%) Linux Engineer
6 7 (7.00%) Python Developer
6 7 (7.00%) Django Developer
6 7 (7.00%) Python/Django Developer
6 7 (7.00%) Linux DevOps Engineer
6 7 (7.00%) Pre Sales Consultant
6 7 (7.00%) Sales Consultant
7 6 (6.00%) Systems Engineer
8 5 (5.00%) DevOps Consultant
9 4 (4.00%) Senior DevOps Engineer
9 4 (4.00%) Network Administrator
10 3 (3.00%) Analyst
10 3 (3.00%) Architect
Libraries, Frameworks & Software Standards
1 22 (22.00%) LAMP
2 10 (10.00%) Web Services
3 9 (9.00%) XML
4 8 (8.00%) JSON
5 7 (7.00%) Django
5 7 (7.00%) Celery
6 5 (5.00%) CGI
7 4 (4.00%) .NET
7 4 (4.00%) J2EE
8 3 (3.00%) HTML
8 3 (3.00%) CSS
8 3 (3.00%) Sass
8 3 (3.00%) jQuery
8 3 (3.00%) WAMP
9 2 (2.00%) RESTful
9 2 (2.00%) LESS
9 2 (2.00%) Spring
9 2 (2.00%) ASP.NET
9 2 (2.00%) AngularJS
9 2 (2.00%) Twitter Bootstrap
Miscellaneous
1 19 (19.00%) Data Centre
2 9 (9.00%) Replication
3 8 (8.00%) Analytical Skills
4 6 (6.00%) Digital Media
5 5 (5.00%) Wiki
6 4 (4.00%) Clustering
6 4 (4.00%) Computer Science
7 2 (2.00%) User Experience
7 2 (2.00%) EMC VNX
7 2 (2.00%) EMC VNXe
7 2 (2.00%) HP StoreVirtual
8 1 (1.00%) Data Structures
8 1 (1.00%) Hybrid Cloud
8 1 (1.00%) Mobile App
8 1 (1.00%) Client/Server
8 1 (1.00%) W3C
8 1 (1.00%) Streaming Video
Operating Systems
1 94 (94.00%) Linux
2 44 (44.00%) Windows
3 38 (38.00%) Red Hat Enterprise Linux
4 28 (28.00%) Ubuntu
5 24 (24.00%) Debian
6 15 (15.00%) Windows Server 2008
6 15 (15.00%) UNIX
7 11 (11.00%) Windows Server 2012
8 9 (9.00%) Fedora
9 8 (8.00%) Windows Server 2003
10 4 (4.00%) VMS
10 4 (4.00%) Mac OS X
11 3 (3.00%) Windows 7
12 2 (2.00%) Amazon Linux
13 1 (1.00%) SUSE
13 1 (1.00%) Windows 2000
Processes & Methodologies
1 28 (28.00%) DevOps
2 15 (15.00%) Agile Software Development
3 14 (14.00%) ITIL
4 13 (13.00%) Disaster Recovery
4 13 (13.00%) Load Balancing
4 13 (13.00%) Continuous Integration
5 11 (11.00%) E-Commerce
6 10 (10.00%) Configuration Management
7 9 (9.00%) Business Development
8 8 (8.00%) Build Automation
9 7 (7.00%) API Design
9 7 (7.00%) ETL
10 6 (6.00%) Change Management
11 5 (5.00%) Data Modelling
11 5 (5.00%) Database Theory
11 5 (5.00%) Relational Database Theory
11 5 (5.00%) Software Engineering
11 5 (5.00%) Capacity Planning
12 4 (4.00%) Open Source
12 4 (4.00%) Mentoring
Programming Languages
1 44 (44.00%) Bash Shell
2 33 (33.00%) Python
3 25 (25.00%) Java
4 24 (24.00%) PHP
5 22 (22.00%) SQL
5 22 (22.00%) Ruby
6 19 (19.00%) Perl
7 9 (9.00%) JavaScript
8 8 (8.00%) Shell Script
9 6 (6.00%) PowerShell
10 2 (2.00%) PHP5
10 2 (2.00%) C#
11 1 (1.00%) C++
11 1 (1.00%) T-SQL
11 1 (1.00%) VB
11 1 (1.00%) Groovy
11 1 (1.00%) sed
11 1 (1.00%) TypeScript
11 1 (1.00%) AWK
11 1 (1.00%) C
Qualifications
1 17 (17.00%) Degree
2 8 (8.00%) VMware Certified Professional (VCP)
2 8 (8.00%) Microsoft Certification
3 7 (7.00%) Cisco Certification
4 6 (6.00%) CCA
4 6 (6.00%) Citrix Certification
4 6 (6.00%) CCEA
4 6 (6.00%) MCSE
4 6 (6.00%) MCSA
5 4 (4.00%) CCNA
6 3 (3.00%) CCNP
6 3 (3.00%) RHCE
7 2 (2.00%) Linux+ Certification
7 2 (2.00%) LPIC
7 2 (2.00%) MCITP
8 1 (1.00%) Security Cleared
8 1 (1.00%) MCP
Quality Assurance & Compliance
1 7 (7.00%) SLA
1 7 (7.00%) QA
2 1 (1.00%) PCI DSS
System Software
1 38 (38.00%) VMware Infrastructure
2 12 (12.00%) Active Directory
3 9 (9.00%) XenServer
4 7 (7.00%) XenDesktop
4 7 (7.00%) Postfix
5 6 (6.00%) iptables
5 6 (6.00%) Samba
6 5 (5.00%) NFS
6 5 (5.00%) Xen
6 5 (5.00%) KVM
7 4 (4.00%) vSphere
7 4 (4.00%) VMware ESXi
7 4 (4.00%) Hyper-V
8 3 (3.00%) Docker
9 2 (2.00%) Varnish
9 2 (2.00%) EMC RecoverPoint
10 1 (1.00%) VMware ESX
10 1 (1.00%) VirtualBox
10 1 (1.00%) OpenSIPS
10 1 (1.00%) FreeRADIUS
Systems Management
1 39 (39.00%) Puppet
2 34 (34.00%) Opscode Chef
3 17 (17.00%) Nagios
4 12 (12.00%) ZABBIX
5 10 (10.00%) Ansible
6 6 (6.00%) Cacti
7 5 (5.00%) Salt
8 4 (4.00%) logstash
9 3 (3.00%) Pingdom
10 2 (2.00%) EMC NetWorker
11 1 (1.00%) Vagrant
11 1 (1.00%) Zenoss
11 1 (1.00%) yum
11 1 (1.00%) Kibana
11 1 (1.00%) Icinga
11 1 (1.00%) Netcool
Vendors
1 59 (59.00%) VMware
2 54 (54.00%) Red Hat
3 27 (27.00%) Cisco
4 22 (22.00%) Microsoft
5 19 (19.00%) Citrix
6 15 (15.00%) HP
7 8 (8.00%) Oracle
8 6 (6.00%) Splunk
9 4 (4.00%) Adobe
9 4 (4.00%) EMC
9 4 (4.00%) SaltStack
10 3 (3.00%) AppDynamics
10 3 (3.00%) ServiceNow
10 3 (3.00%) CheckPoint
11 2 (2.00%) ProCurve
11 2 (2.00%) Trend Micro
11 2 (2.00%) NetApp
11 2 (2.00%) New Relic
11 2 (2.00%) Cyber-Ark
12 1 (1.00%) Meraki
City, London
eCom Recruitment
Salary: From £30,000 to £40,000 per annum
Posted: 1 hour ago
City, London
Arrows Group
Salary: £70000 - £85000 per annum + £6k car, bonus, benefits!
Posted: 8 hours ago
City of London
Venturi
Salary: £45000.00 - £50000.00 per annum + benefits
Posted: 2 days ago
City, London
Digital Pursuit Ltd
Salary: From £50,000 to £55,000 per annum
Posted: 5 days ago
City of London
Streamline Connections
Salary: £70000 - £100000 per annum + Negotiable
Posted: 7 days ago
City, London
Mandara Capital
Salary: Up to £45,000 per annum plus training and development support
Posted: 19 days ago
City of London
Austin Fraser Limited
Salary: £50000.00 - £60000.00 per annum
Posted: 20 days ago
City of London
Arrows Group
Salary: £70000 - £80000 per annum + £8k car, 16% bonus, benefits!
Posted: 21 days ago
City of London
Arrows Group
Salary: £60000 - £75000.00 per annum + benefits
Posted: 22 days ago