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 28 August 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
28 Aug 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 252 259 255
Rank change year-on-year
+7 -4
Permanent jobs citing CentOS 51 69 69
As % of all permanent IT jobs located in the City of London 0.53% 0.59% 0.58%
As % of the Operating Systems category 2.12% 2.17% 2.14%
Number of salaries quoted 46 69 63
Average salary £55,000 £45,000 £55,000
Average salary % change year-on-year
+22.22% -18.18%
90% offered a salary of more than £37,500 £40,000 £40,500
10% offered a salary of more than £70,000 £58,000 £67,500
UK excluding London average salary £42,500 £41,500 £38,500
% change year-on-year
+2.40% +7.79%
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
2410 3184 3223
As % of all permanent IT jobs located in the City of London 24.91% 27.14% 27.26%
Number of salaries quoted 2065 2804 2891
Average salary £50,000 £50,000 £50,000
90% offered a salary of more than £28,000 £29,500 £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 28 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 28 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 87 (93.55%) Linux
2 54 (58.06%) Red Hat
3 50 (53.76%) VMware
4 44 (47.31%) Bash Shell
4 44 (47.31%) MySQL
5 43 (46.24%) Puppet
6 38 (40.86%) Windows
6 38 (40.86%) Opscode Chef
7 36 (38.71%) Python
8 35 (37.63%) Apache
9 33 (35.48%) Git (software)
10 32 (34.41%) Red Hat Enterprise Linux
10 32 (34.41%) DevOps
11 31 (33.33%) VMware Infrastructure
12 30 (32.26%) Ubuntu
13 27 (29.03%) Java
14 25 (26.88%) Firewall
15 24 (25.81%) Ruby
16 23 (24.73%) LAMP
17 22 (23.66%) Data Centre
17 22 (23.66%) PHP
17 22 (23.66%) SQL
18 21 (22.58%) Perl
18 21 (22.58%) DNS
18 21 (22.58%) Debian
18 21 (22.58%) Cisco
19 19 (20.43%) VPN
19 19 (20.43%) nginx
20 18 (19.35%) Amazon AWS
21 17 (18.28%) BGP

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

For the 6 months to 28 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 35 (37.63%) Apache
2 19 (20.43%) nginx
3 13 (13.98%) Tomcat
4 12 (12.90%) Elasticsearch
5 9 (9.68%) Confluence
6 7 (7.53%) MediaWiki
7 5 (5.38%) IIS
7 5 (5.38%) JBoss
8 4 (4.30%) SharePoint
8 4 (4.30%) Adobe Experience Manager
9 3 (3.23%) Node.js
9 3 (3.23%) MS Exchange
9 3 (3.23%) Drupal
10 2 (2.15%) OpenStack
11 1 (1.08%) Lync
11 1 (1.08%) Apache Solr
11 1 (1.08%) GlassFish
11 1 (1.08%) Jetty
11 1 (1.08%) Mule
11 1 (1.08%) NetWeaver
Applications
1 3 (3.23%) MS Excel
Business Applications
1 2 (2.15%) Magento
Cloud Services
1 18 (19.35%) Amazon AWS
2 5 (5.38%) Amazon EC2
3 3 (3.23%) Amazon S3
3 3 (3.23%) Amazon SQS
4 2 (2.15%) Route 53
4 2 (2.15%) Amazon ELB
5 1 (1.08%) SoftLayer
5 1 (1.08%) AWS CloudFormation
5 1 (1.08%) Amazon CloudWatch
5 1 (1.08%) AWS Elastic Beanstalk
5 1 (1.08%) Cloud Computing
Communications & Networking
1 25 (26.88%) Firewall
2 21 (22.58%) DNS
3 19 (20.43%) VPN
4 17 (18.28%) BGP
5 14 (15.05%) TCP/IP
6 12 (12.90%) OSPF
7 11 (11.83%) LDAP
8 10 (10.75%) DHCP
8 10 (10.75%) IPsec
9 9 (9.68%) EIGRP
10 8 (8.60%) WAN
10 8 (8.60%) Network Security
11 7 (7.53%) Cisco ASA
11 7 (7.53%) IPv6
11 7 (7.53%) SAN
11 7 (7.53%) LAN
12 6 (6.45%) VLAN
13 4 (4.30%) Cisco IOS
14 3 (3.23%) OpenVPN
14 3 (3.23%) VoIP
Database & Business Intelligence
1 44 (47.31%) MySQL
2 15 (16.13%) MongoDB
3 14 (15.05%) PostgreSQL
4 12 (12.90%) SQL Server
5 10 (10.75%) Redis
6 9 (9.68%) CouchDB
7 7 (7.53%) Relational Database
8 3 (3.23%) Amazon RDS
8 3 (3.23%) NoSQL
9 2 (2.15%) Ingres
9 2 (2.15%) MariaDB
10 1 (1.08%) Amazon DynamoDB
10 1 (1.08%) SQL Server 2008
10 1 (1.08%) SQL Server 2012
Development Applications
1 33 (35.48%) Git (software)
2 17 (18.28%) Jenkins
3 16 (17.20%) Subversion
4 10 (10.75%) Hudson
4 10 (10.75%) Mercurial
5 9 (9.68%) JIRA
6 6 (6.45%) TeamCity
7 5 (5.38%) Maven
8 2 (2.15%) Atlassian Bamboo
9 1 (1.08%) Selenium
9 1 (1.08%) JUnit
9 1 (1.08%) Eclipse
9 1 (1.08%) PHPUnit
9 1 (1.08%) Mockito
9 1 (1.08%) Cucumber
9 1 (1.08%) Behat
9 1 (1.08%) Gradle
9 1 (1.08%) Team Foundation Server
9 1 (1.08%) Trac
9 1 (1.08%) Grunt
General
1 15 (16.13%) Finance
2 14 (15.05%) Telecoms
3 6 (6.45%) Advertising
4 3 (3.23%) Banking
5 2 (2.15%) Marketing
6 1 (1.08%) German Language
6 1 (1.08%) Retail
6 1 (1.08%) Games
6 1 (1.08%) Back Office
6 1 (1.08%) Legal
Job Titles
1 26 (27.96%) Administrator
2 25 (26.88%) Systems Administrator
3 23 (24.73%) DevOps Engineer
4 13 (13.98%) Developer
5 9 (9.68%) Linux Administrator
5 9 (9.68%) Python Developer
5 9 (9.68%) Linux Engineer
5 9 (9.68%) Django Developer
5 9 (9.68%) Python/Django Developer
5 9 (9.68%) Linux DevOps Engineer
6 7 (7.53%) Linux Systems Administrator
6 7 (7.53%) Systems Engineer
7 6 (6.45%) Consultant
8 5 (5.38%) DevOps Consultant
9 4 (4.30%) Senior DevOps Engineer
9 4 (4.30%) Network Administrator
10 3 (3.23%) Network Engineer
10 3 (3.23%) Analyst
10 3 (3.23%) Junior
11 2 (2.15%) Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 23 (24.73%) LAMP
2 10 (10.75%) Web Services
2 10 (10.75%) XML
2 10 (10.75%) JSON
3 9 (9.68%) Django
3 9 (9.68%) Celery
4 5 (5.38%) CGI
5 4 (4.30%) .NET
5 4 (4.30%) J2EE
6 3 (3.23%) WAMP
7 2 (2.15%) 802.1X
7 2 (2.15%) Sass
7 2 (2.15%) ASP.NET
7 2 (2.15%) HTML
7 2 (2.15%) jQuery
8 1 (1.08%) GWT
8 1 (1.08%) FIX Protocol
8 1 (1.08%) JSR 170
8 1 (1.08%) COM
8 1 (1.08%) CSS
Miscellaneous
1 22 (23.66%) Data Centre
2 8 (8.60%) Analytical Skills
3 7 (7.53%) Wiki
4 6 (6.45%) Digital Media
5 5 (5.38%) Clustering
6 4 (4.30%) Computer Science
7 3 (3.23%) Replication
8 2 (2.15%) EMC VNX
8 2 (2.15%) EMC VNXe
9 1 (1.08%) HP StoreVirtual
9 1 (1.08%) Data Structures
9 1 (1.08%) Hybrid Cloud
9 1 (1.08%) Management Information System
9 1 (1.08%) Mobile App
9 1 (1.08%) User Experience
Operating Systems
1 87 (93.55%) Linux
2 38 (40.86%) Windows
3 32 (34.41%) Red Hat Enterprise Linux
4 30 (32.26%) Ubuntu
5 21 (22.58%) Debian
6 15 (16.13%) Windows Server 2008
6 15 (16.13%) UNIX
7 11 (11.83%) Windows Server 2012
8 10 (10.75%) Windows Server 2003
9 9 (9.68%) Fedora
10 4 (4.30%) VMS
10 4 (4.30%) Mac OS X
11 3 (3.23%) Windows 7
12 2 (2.15%) Amazon Linux
13 1 (1.08%) SUSE
13 1 (1.08%) Solaris
13 1 (1.08%) Windows 2000
Processes & Methodologies
1 32 (34.41%) DevOps
2 16 (17.20%) Continuous Integration
3 13 (13.98%) E-Commerce
4 12 (12.90%) Agile Software Development
5 10 (10.75%) ITIL
5 10 (10.75%) Configuration Management
5 10 (10.75%) Build Automation
6 9 (9.68%) API Design
6 9 (9.68%) ETL
6 9 (9.68%) Disaster Recovery
7 7 (7.53%) Data Modelling
7 7 (7.53%) Database Theory
7 7 (7.53%) Relational Database Theory
7 7 (7.53%) Capacity Planning
8 6 (6.45%) Load Balancing
9 5 (5.38%) Change Management
10 4 (4.30%) Service Management
10 4 (4.30%) Scrum
10 4 (4.30%) Software Engineering
10 4 (4.30%) Open Source
Programming Languages
1 44 (47.31%) Bash Shell
2 36 (38.71%) Python
3 27 (29.03%) Java
4 24 (25.81%) Ruby
5 22 (23.66%) PHP
5 22 (23.66%) SQL
6 21 (22.58%) Perl
7 8 (8.60%) Shell Script
8 7 (7.53%) JavaScript
9 6 (6.45%) PowerShell
10 2 (2.15%) C#
11 1 (1.08%) C++
11 1 (1.08%) T-SQL
11 1 (1.08%) VB
11 1 (1.08%) AWK
11 1 (1.08%) C
11 1 (1.08%) PHP5
11 1 (1.08%) Groovy
11 1 (1.08%) sed
11 1 (1.08%) TypeScript
Qualifications
1 13 (13.98%) Degree
2 7 (7.53%) Cisco Certification
3 4 (4.30%) CCNA
4 3 (3.23%) Microsoft Certification
4 3 (3.23%) RHCE
4 3 (3.23%) CCNP
4 3 (3.23%) VMware Certified Professional (VCP)
5 2 (2.15%) LPIC
5 2 (2.15%) MCITP
5 2 (2.15%) Linux+ Certification
6 1 (1.08%) CCA
6 1 (1.08%) Citrix Certification
6 1 (1.08%) CCEA
6 1 (1.08%) MCP
6 1 (1.08%) MCSE
6 1 (1.08%) MCSA
Quality Assurance & Compliance
1 8 (8.60%) QA
2 1 (1.08%) PCI DSS
2 1 (1.08%) SLA
System Software
1 31 (33.33%) VMware Infrastructure
2 11 (11.83%) XenServer
3 10 (10.75%) Active Directory
4 9 (9.68%) Postfix
5 8 (8.60%) iptables
5 8 (8.60%) Samba
6 5 (5.38%) Xen
6 5 (5.38%) KVM
7 4 (4.30%) Docker
7 4 (4.30%) Hyper-V
8 3 (3.23%) NFS
8 3 (3.23%) VMware ESXi
9 2 (2.15%) EMC RecoverPoint
9 2 (2.15%) vSphere
9 2 (2.15%) Varnish
10 1 (1.08%) VirtualBox
10 1 (1.08%) OpenSIPS
10 1 (1.08%) FreeRADIUS
10 1 (1.08%) VMware ESX
10 1 (1.08%) XenDesktop
Systems Management
1 43 (46.24%) Puppet
2 38 (40.86%) Opscode Chef
3 16 (17.20%) Nagios
4 15 (16.13%) ZABBIX
5 13 (13.98%) Ansible
6 7 (7.53%) Salt
7 6 (6.45%) Cacti
8 3 (3.23%) Pingdom
9 2 (2.15%) EMC NetWorker
9 2 (2.15%) logstash
10 1 (1.08%) Symantec Enterprise Vault
10 1 (1.08%) Vagrant
10 1 (1.08%) Kibana
10 1 (1.08%) Icinga
10 1 (1.08%) Mesos
10 1 (1.08%) Kubernetes
10 1 (1.08%) SCCM
10 1 (1.08%) SCOM
10 1 (1.08%) NetBackup
10 1 (1.08%) Zenoss
Vendors
1 54 (58.06%) Red Hat
2 50 (53.76%) VMware
3 21 (22.58%) Cisco
4 16 (17.20%) Citrix
5 15 (16.13%) Microsoft
6 8 (8.60%) HP
7 7 (7.53%) Splunk
8 5 (5.38%) SaltStack
9 4 (4.30%) EMC
9 4 (4.30%) Adobe
10 3 (3.23%) NetApp
10 3 (3.23%) CheckPoint
10 3 (3.23%) AppDynamics
10 3 (3.23%) ServiceNow
11 2 (2.15%) New Relic
11 2 (2.15%) Cyber-Ark
11 2 (2.15%) Trend Micro
11 2 (2.15%) Oracle
12 1 (1.08%) Sybase
12 1 (1.08%) SAP
City, London
Informatiq Consulting
Salary: £45000 - £50000 per annum
Posted: 2 days ago
City, London
Quant Capital
Salary: From £70,000 to £85,000 per annum + bonus and share options
Posted: 4 days ago
City of London
Austin Fraser Limited
Salary: £50000.00 - £60000.00 per annum
Posted: 6 days ago
City of London
Hays IT - Uk Posting account
Salary: £35319 - £41553 per annum + Excellent Benefits
Posted: 21 days ago