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 7 July 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
7 Jul 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 249 300 270
Rank change year-on-year
+51 -30
Permanent jobs citing CentOS 51 45 53
As % of all permanent IT jobs located in the City of London 0.50% 0.36% 0.43%
As % of the Operating Systems category 2.12% 1.34% 1.57%
Number of salaries quoted 49 42 43
Average salary £50,000 £45,000 £50,000
Average salary % change year-on-year
+11.11% -10.00%
90% offered a salary of more than £32,500 £35,500 £40,000
10% offered a salary of more than £70,000 £62,250 £65,000
UK excluding London average salary £42,500 £39,000 £37,500
% change year-on-year
+8.97% +4.00%
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
2408 3360 3366
As % of all permanent IT jobs located in the City of London 23.44% 26.68% 27.47%
Number of salaries quoted 2103 2969 2978
Average salary £50,000 £50,000 £50,000
90% offered a salary of more than £30,000 £29,000 £32,500
10% offered a salary of more than £75,000 £72,500 £75,000
UK excluding London average salary £37,500 £36,000 £37,500
% change year-on-year
+4.16% -4.00%

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 7 July 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 7 July 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 60 (60.00%) VMware
3 55 (55.00%) Red Hat
4 44 (44.00%) Bash Shell
5 40 (40.00%) Windows
5 40 (40.00%) MySQL
6 39 (39.00%) Apache
6 39 (39.00%) VMware Infrastructure
6 39 (39.00%) Red Hat Enterprise Linux
6 39 (39.00%) Puppet
7 34 (34.00%) Python
8 29 (29.00%) Opscode Chef
9 28 (28.00%) Firewall
9 28 (28.00%) Git (software)
10 27 (27.00%) DNS
10 27 (27.00%) DevOps
11 26 (26.00%) Cisco
12 25 (25.00%) PHP
12 25 (25.00%) Ubuntu
13 23 (23.00%) Ruby
13 23 (23.00%) Finance
14 22 (22.00%) Java
14 22 (22.00%) Debian
15 21 (21.00%) Microsoft
15 21 (21.00%) VPN
16 20 (20.00%) SQL
16 20 (20.00%) SQL Server
16 20 (20.00%) Perl
16 20 (20.00%) Data Centre
17 19 (19.00%) LAMP

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

For the 6 months to 7 July 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 39 (39.00%) Apache
2 16 (16.00%) nginx
3 11 (11.00%) Tomcat
4 10 (10.00%) IIS
5 9 (9.00%) SharePoint
6 7 (7.00%) Elasticsearch
7 5 (5.00%) Confluence
7 5 (5.00%) JBoss
8 4 (4.00%) Node.js
8 4 (4.00%) Adobe Experience Manager
9 3 (3.00%) MediaWiki
9 3 (3.00%) Drupal
10 2 (2.00%) MS Exchange
11 1 (1.00%) GlassFish
11 1 (1.00%) Jetty
11 1 (1.00%) Mule
11 1 (1.00%) Apache Solr
Applications
1 3 (3.00%) MS Excel
2 2 (2.00%) Photoshop
Business Applications
1 2 (2.00%) Magento
Cloud Services
1 19 (19.00%) Amazon AWS
2 4 (4.00%) Amazon EC2
3 2 (2.00%) Amazon S3
3 2 (2.00%) Microsoft Azure
3 2 (2.00%) Amazon SQS
3 2 (2.00%) Route 53
4 1 (1.00%) GitHub
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%) SaaS
4 1 (1.00%) Cloud Computing
Communications & Networking
1 28 (28.00%) Firewall
2 27 (27.00%) DNS
3 21 (21.00%) VPN
4 15 (15.00%) SAN
5 14 (14.00%) TCP/IP
6 12 (12.00%) VoIP
6 12 (12.00%) VLAN
7 11 (11.00%) BGP
7 11 (11.00%) LDAP
7 11 (11.00%) DHCP
8 10 (10.00%) WAN
8 10 (10.00%) Network Security
9 8 (8.00%) OSPF
10 7 (7.00%) iSCSI
10 7 (7.00%) Cisco ASA
10 7 (7.00%) Fibre Channel
11 6 (6.00%) IPsec
12 5 (5.00%) Asterisk PBX
13 4 (4.00%) EIGRP
13 4 (4.00%) NAS
Database & Business Intelligence
1 40 (40.00%) MySQL
2 20 (20.00%) SQL Server
3 11 (11.00%) MongoDB
4 9 (9.00%) PostgreSQL
4 9 (9.00%) Relational Database
5 5 (5.00%) Redis
6 4 (4.00%) NoSQL
6 4 (4.00%) CouchDB
7 2 (2.00%) Amazon RDS
7 2 (2.00%) MariaDB
7 2 (2.00%) Ingres
8 1 (1.00%) SQL Server 2008
8 1 (1.00%) Amazon DynamoDB
Development Applications
1 28 (28.00%) Git (software)
2 13 (13.00%) Subversion
3 11 (11.00%) Jenkins
4 8 (8.00%) Maven
5 6 (6.00%) JIRA
6 5 (5.00%) Hudson
6 5 (5.00%) Mercurial
7 4 (4.00%) TeamCity
8 3 (3.00%) Grunt
8 3 (3.00%) Gradle
9 2 (2.00%) Bower
9 2 (2.00%) Atlassian Bamboo
9 2 (2.00%) Ant
9 2 (2.00%) Team Foundation Server
10 1 (1.00%) Behat
10 1 (1.00%) PHPUnit
10 1 (1.00%) Mockito
10 1 (1.00%) Cucumber
10 1 (1.00%) JUnit
10 1 (1.00%) Eclipse
General
1 23 (23.00%) Finance
2 14 (14.00%) Telecoms
3 13 (13.00%) Advertising
4 10 (10.00%) Banking
5 7 (7.00%) Retail
6 2 (2.00%) Marketing
6 2 (2.00%) Back Office
7 1 (1.00%) Games
7 1 (1.00%) German Language
Job Titles
1 31 (31.00%) Administrator
2 29 (29.00%) Systems Administrator
3 19 (19.00%) DevOps Engineer
4 13 (13.00%) Linux Administrator
5 10 (10.00%) Linux Systems Administrator
6 9 (9.00%) Consultant
6 9 (9.00%) Linux Engineer
7 8 (8.00%) Developer
8 7 (7.00%) Architect
8 7 (7.00%) Sales Consultant
8 7 (7.00%) Pre Sales Consultant
9 6 (6.00%) Senior Architect
10 4 (4.00%) Django Developer
10 4 (4.00%) Python/Django Developer
10 4 (4.00%) Python Developer
10 4 (4.00%) Senior DevOps Engineer
10 4 (4.00%) Linux DevOps Engineer
10 4 (4.00%) Network Administrator
10 4 (4.00%) Systems Engineer
11 3 (3.00%) Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 19 (19.00%) LAMP
2 15 (15.00%) Web Services
3 6 (6.00%) XML
4 5 (5.00%) .NET
4 5 (5.00%) CGI
4 5 (5.00%) JSON
5 4 (4.00%) Django
5 4 (4.00%) CSS
5 4 (4.00%) J2EE
5 4 (4.00%) Celery
5 4 (4.00%) HTML
6 3 (3.00%) Sass
6 3 (3.00%) LESS
6 3 (3.00%) Twitter Bootstrap
6 3 (3.00%) ASP.NET
6 3 (3.00%) Spring
6 3 (3.00%) jQuery
6 3 (3.00%) WAMP
6 3 (3.00%) RESTful
6 3 (3.00%) REST
Miscellaneous
1 20 (20.00%) Data Centre
2 8 (8.00%) Analytical Skills
2 8 (8.00%) Replication
3 6 (6.00%) Digital Media
4 3 (3.00%) Computer Science
4 3 (3.00%) Wiki
4 3 (3.00%) Clustering
4 3 (3.00%) User Experience
5 2 (2.00%) HP StoreVirtual
5 2 (2.00%) Client/Server
5 2 (2.00%) W3C
5 2 (2.00%) Streaming Video
6 1 (1.00%) Tandem
6 1 (1.00%) MHEG
6 1 (1.00%) Mobile App
6 1 (1.00%) Hybrid Cloud
6 1 (1.00%) EMC VNX
6 1 (1.00%) EMC VNXe
Operating Systems
1 94 (94.00%) Linux
2 40 (40.00%) Windows
3 39 (39.00%) Red Hat Enterprise Linux
4 25 (25.00%) Ubuntu
5 22 (22.00%) Debian
6 14 (14.00%) UNIX
7 13 (13.00%) Windows Server 2008
8 9 (9.00%) Windows Server 2012
9 8 (8.00%) Fedora
10 5 (5.00%) Windows Server 2003
11 4 (4.00%) Mac OS X
12 3 (3.00%) Windows 7
13 2 (2.00%) Amazon Linux
13 2 (2.00%) VMS
14 1 (1.00%) SUSE
14 1 (1.00%) Windows 2000
14 1 (1.00%) Scientific Linux
Processes & Methodologies
1 27 (27.00%) DevOps
2 17 (17.00%) Agile Software Development
3 13 (13.00%) ITIL
4 12 (12.00%) Load Balancing
5 11 (11.00%) Continuous Integration
5 11 (11.00%) Disaster Recovery
6 9 (9.00%) OO
6 9 (9.00%) E-Commerce
6 9 (9.00%) Business Development
7 8 (8.00%) Configuration Management
7 8 (8.00%) Software Engineering
8 6 (6.00%) Stakeholder Management
8 6 (6.00%) OOD
8 6 (6.00%) Build Automation
9 5 (5.00%) Scrum
9 5 (5.00%) Change Management
9 5 (5.00%) Migration
10 4 (4.00%) ETL
10 4 (4.00%) Service Management
10 4 (4.00%) Open Source
Programming Languages
1 44 (44.00%) Bash Shell
2 34 (34.00%) Python
3 25 (25.00%) PHP
4 23 (23.00%) Ruby
5 22 (22.00%) Java
6 20 (20.00%) SQL
6 20 (20.00%) Perl
7 9 (9.00%) JavaScript
8 8 (8.00%) Shell Script
9 5 (5.00%) PowerShell
10 3 (3.00%) PHP5
10 3 (3.00%) C#
11 1 (1.00%) C++
11 1 (1.00%) C
11 1 (1.00%) T-SQL
11 1 (1.00%) AWK
11 1 (1.00%) sed
11 1 (1.00%) TypeScript
Qualifications
1 17 (17.00%) Degree
2 8 (8.00%) Microsoft Certification
3 7 (7.00%) VMware Certified Professional (VCP)
4 6 (6.00%) MCSE
4 6 (6.00%) MCSA
4 6 (6.00%) CCA
4 6 (6.00%) Citrix Certification
4 6 (6.00%) CCEA
4 6 (6.00%) Cisco Certification
5 3 (3.00%) CCNP
5 3 (3.00%) CCNA
5 3 (3.00%) RHCE
6 2 (2.00%) Linux+ Certification
6 2 (2.00%) LPIC
6 2 (2.00%) MCITP
7 1 (1.00%) Security Cleared
7 1 (1.00%) MCP
Quality Assurance & Compliance
1 7 (7.00%) SLA
2 5 (5.00%) QA
3 1 (1.00%) PCI DSS
System Software
1 39 (39.00%) VMware Infrastructure
2 13 (13.00%) Active Directory
3 9 (9.00%) vSphere
4 7 (7.00%) XenServer
4 7 (7.00%) XenDesktop
5 6 (6.00%) NFS
5 6 (6.00%) Postfix
6 5 (5.00%) Samba
6 5 (5.00%) Xen
6 5 (5.00%) KVM
7 4 (4.00%) iptables
7 4 (4.00%) Hyper-V
7 4 (4.00%) VMware ESXi
8 3 (3.00%) Varnish
9 2 (2.00%) Microsoft Virtual Server
9 2 (2.00%) VMware Server
9 2 (2.00%) Docker
10 1 (1.00%) VMware ESX
10 1 (1.00%) Squid
10 1 (1.00%) OpenSIPS
Systems Management
1 39 (39.00%) Puppet
2 29 (29.00%) Opscode Chef
3 18 (18.00%) Nagios
4 10 (10.00%) ZABBIX
5 6 (6.00%) Cacti
6 5 (5.00%) Ansible
6 5 (5.00%) logstash
7 3 (3.00%) Pingdom
7 3 (3.00%) Salt
8 1 (1.00%) Kibana
8 1 (1.00%) Icinga
8 1 (1.00%) Netcool
8 1 (1.00%) Zenoss
8 1 (1.00%) yum
8 1 (1.00%) EMC NetWorker
8 1 (1.00%) Cobbler
8 1 (1.00%) Vagrant
Vendors
1 60 (60.00%) VMware
2 55 (55.00%) Red Hat
3 26 (26.00%) Cisco
4 21 (21.00%) Microsoft
5 18 (18.00%) HP
5 18 (18.00%) Citrix
6 9 (9.00%) Oracle
7 7 (7.00%) Splunk
8 4 (4.00%) Adobe
9 3 (3.00%) CheckPoint
9 3 (3.00%) ServiceNow
9 3 (3.00%) New Relic
9 3 (3.00%) SaltStack
9 3 (3.00%) AppDynamics
9 3 (3.00%) EMC
10 2 (2.00%) Zend
10 2 (2.00%) Facebook
10 2 (2.00%) Twitter
10 2 (2.00%) ProCurve
10 2 (2.00%) NetApp
City, London
Robert Walters
Posted: 2 hours ago
City, London
TEKsystems
Salary: £35000 - £40000 per annum + Bonus & Benefits
Posted: 7 hours ago
City, London
Austin Fraser Ltd
Posted: Yesterday
City, London
Opus Recruitment Solutions Ltd
Salary: £60000 - £70000 per annum
Posted: 2 days ago
City, London
Digital Pursuit Ltd
Salary: From £50,000 to £55,000 per annum
Posted: 4 days ago
City, London
TEKsystems
Salary: £60000 - £80000 per annum + excellent package
Posted: 5 days ago
City, London
Novate IT Ltd
Salary: £50000 - £60000 per annum
Posted: 5 days ago
City, London
RICHARD WHEELER ASSOCIATES
Salary: From £45,000 to £55,000 per annum + benefits, on-call, OT, pension
Posted: 5 days ago
City, London
Digital Vision Search Ltd
Salary: From £55,000 to £65,000 per annum + Excellent Share Options
Posted: 5 days ago
City, London
Vertical IT
Salary: £40000 - £55000 per annum + Benefits
Posted: 6 days ago
City, London
Austin Fraser
Salary: £50000.00 - £60000.00 per annum
Posted: 6 days ago