The table below looks at the statistics for CentOS skills in IT jobs advertised for the 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 330 311 327
Rank change year-on-year
-19 +16
Permanent jobs citing CentOS 339 405 344
As % of all permanent IT jobs located in London 0.77% 0.85% 0.78%
As % of the Operating Systems category 2.84% 3.08% 2.81%
Number of salaries quoted 303 356 320
Average salary £55,000 £50,000 £50,000
Average salary % change year-on-year
+10.00% -
90% offered a salary of more than £37,500 £37,750 £37,500
10% offered a salary of more than £70,000 £65,000 £62,500
UK excluding London average salary £42,500 £40,750 £38,500
% change year-on-year
+4.29% +5.84%
CentOS
England

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

Operating Systems Category
London
Permanent IT job ads with a match in the
Operating Systems category
11922 13155 12229
As % of all permanent IT jobs located in London 26.99% 27.49% 27.62%
Number of salaries quoted 10268 11328 10387
Average salary £50,000 £48,000 £50,000
Average salary % change year-on-year
+4.16% -4.00%
90% offered a salary of more than £27,500 £27,500 £30,000
10% offered a salary of more than £75,000 £70,000 £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 London

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

CentOS Jobs Demand Trend in London

CentOS
Salary Trend in London

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

CentOS Salary Trend in London

CentOS
Salary Histogram in London

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

CentOS Salary Histogram in London

CentOS
Job Locations in London

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing CentOS within the London region over the 3 months to 4 August 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +19 52 £55,000 +22.22% 9
Hammersmith +4 2 £51,250 -
Harrow - 2 £57,500 - 1
Croydon - 1 £40,000 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 4 August 2015, IT jobs across the 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.

1 672 (95.73%) Linux
2 409 (58.26%) Red Hat
3 325 (46.30%) Python
3 325 (46.30%) Bash Shell
4 316 (45.01%) Puppet
5 294 (41.88%) Red Hat Enterprise Linux
6 277 (39.46%) MySQL
7 263 (37.46%) Ubuntu
8 255 (36.32%) VMware
9 252 (35.90%) Apache
10 236 (33.62%) DevOps
11 224 (31.91%) Opscode Chef
12 203 (28.92%) Perl
13 197 (28.06%) Windows
13 197 (28.06%) Amazon AWS
14 196 (27.92%) Ruby
15 187 (26.64%) Java
16 178 (25.36%) DNS
17 167 (23.79%) VMware Infrastructure
18 166 (23.65%) PHP
19 161 (22.93%) Git (software)
20 159 (22.65%) Agile Software Development
21 149 (21.23%) Firewall
22 145 (20.66%) Debian
23 144 (20.51%) Configuration Management
24 134 (19.09%) Nagios
25 128 (18.23%) Jenkins
25 128 (18.23%) Ansible
26 127 (18.09%) Tomcat
27 126 (17.95%) SQL

CentOS
Top Related IT Skills in London by Category

For the 6 months to 4 August 2015, IT jobs across the 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
1 252 (35.90%) Apache
2 127 (18.09%) Tomcat
3 121 (17.24%) nginx
4 53 (7.55%) OpenStack
5 52 (7.41%) IIS
6 47 (6.70%) Elasticsearch
7 43 (6.13%) Confluence
8 41 (5.84%) JBoss
9 25 (3.56%) MS Exchange
10 21 (2.99%) SharePoint
10 21 (2.99%) Drupal
11 17 (2.42%) Exchange Server 2010
12 16 (2.28%) Node.js
13 15 (2.14%) MediaWiki
14 11 (1.57%) Cloud Foundry
15 9 (1.28%) Jetty
16 7 (1.00%) Apache Solr
16 7 (1.00%) Moodle
17 4 (0.57%) Adobe Experience Manager
18 3 (0.43%) lighttpd
Applications
1 31 (4.42%) MS Excel
2 4 (0.57%) MS Office
3 2 (0.28%) MS Visio
3 2 (0.28%) Maya
3 2 (0.28%) MS PowerPoint
3 2 (0.28%) PowerPivot
4 1 (0.14%) Photoshop
Business Applications
1 10 (1.42%) Magento
2 6 (0.85%) RMDS
3 3 (0.43%) Oracle General Ledger
4 2 (0.28%) Cordys
4 2 (0.28%) SAP Business One
5 1 (0.14%) SAP Oil and Gas
5 1 (0.14%) Dynamics CRM
Cloud Services
1 197 (28.06%) Amazon AWS
2 78 (11.11%) Amazon EC2
3 24 (3.42%) Amazon S3
3 24 (3.42%) PaaS
4 18 (2.56%) Microsoft Azure
5 16 (2.28%) Route 53
6 13 (1.85%) GitHub
6 13 (1.85%) Office 365
7 12 (1.71%) Cloud Computing
8 10 (1.42%) Amazon ELB
8 10 (1.42%) SaaS
9 9 (1.28%) Rackspace Cloud
10 8 (1.14%) IaaS
11 6 (0.85%) AWS CloudFormation
11 6 (0.85%) Amazon SQS
12 5 (0.71%) Heroku
12 5 (0.71%) Engine Yard
13 3 (0.43%) SoftLayer
13 3 (0.43%) Virtual Private Cloud
14 2 (0.28%) Amazon CloudWatch
Communications & Networking
1 178 (25.36%) DNS
2 149 (21.23%) Firewall
3 124 (17.66%) TCP/IP
4 114 (16.24%) VPN
5 100 (14.25%) SAN
6 81 (11.54%) LDAP
7 68 (9.69%) DHCP
8 62 (8.83%) VLAN
9 48 (6.84%) HTTP
9 48 (6.84%) WAN
10 42 (5.98%) Internet
11 39 (5.56%) LAN
11 39 (5.56%) Network Security
12 35 (4.99%) BGP
13 34 (4.84%) SSH
14 31 (4.42%) Wi-Fi
14 31 (4.42%) SMTP
14 31 (4.42%) SNMP
15 30 (4.27%) IPsec
16 29 (4.13%) VoIP
Database & Business Intelligence
1 277 (39.46%) MySQL
2 101 (14.39%) MongoDB
3 84 (11.97%) SQL Server
4 65 (9.26%) PostgreSQL
5 54 (7.69%) NoSQL
6 44 (6.27%) Redis
7 37 (5.27%) Apache Cassandra
8 35 (4.99%) Relational Database
9 26 (3.70%) Couchbase
10 25 (3.56%) Hadoop
11 23 (3.28%) Big Data
12 21 (2.99%) Amazon RDS
13 17 (2.42%) HBase
14 16 (2.28%) MariaDB
15 15 (2.14%) Oracle Database
16 14 (1.99%) Oracle Database 11g
17 12 (1.71%) CouchDB
18 10 (1.42%) RDBMS
19 9 (1.28%) InfluxDB
20 8 (1.14%) Ingres
Development Applications
1 161 (22.93%) Git (software)
2 128 (18.23%) Jenkins
3 63 (8.97%) Subversion
4 61 (8.69%) JIRA
5 41 (5.84%) Maven
6 35 (4.99%) Hudson
7 26 (3.70%) TeamCity
8 16 (2.28%) Eclipse
9 15 (2.14%) ProC
10 14 (1.99%) Team Foundation Server
11 13 (1.85%) Ant
11 13 (1.85%) Selenium
12 12 (1.71%) Atlassian Bamboo
13 11 (1.57%) Mercurial
13 11 (1.57%) SoapUI
14 10 (1.42%) IntelliJ
15 6 (0.85%) Liquibase
15 6 (0.85%) Flyway
16 4 (0.57%) Grunt
16 4 (0.57%) Bower
General
1 96 (13.68%) Finance
2 39 (5.56%) Retail
3 32 (4.56%) Telecoms
4 26 (3.70%) Games
5 23 (3.28%) Advertising
6 20 (2.85%) Marketing
7 16 (2.28%) Banking
8 6 (0.85%) Back Office
9 4 (0.57%) Local Government
10 3 (0.43%) Investment Banking
10 3 (0.43%) Financial Institution
11 1 (0.14%) Electronics
11 1 (0.14%) Legal
11 1 (0.14%) Manufacturing
11 1 (0.14%) German Language
Job Titles
1 236 (33.62%) Administrator
2 222 (31.62%) Systems Administrator
3 167 (23.79%) Linux Administrator
4 146 (20.80%) Linux Systems Administrator
4 146 (20.80%) DevOps Engineer
5 80 (11.40%) Linux Engineer
6 66 (9.40%) Linux DevOps Engineer
7 64 (9.12%) Developer
8 55 (7.83%) Systems Engineer
9 27 (3.85%) Analyst
10 26 (3.70%) Senior DevOps Engineer
11 25 (3.56%) Infrastructure Engineer
12 21 (2.99%) Java Developer
13 20 (2.85%) DBA
14 18 (2.56%) Consultant
15 17 (2.42%) Junior
16 16 (2.28%) Linux Systems Engineer
17 15 (2.14%) Network Engineer
17 15 (2.14%) Support Engineer
18 14 (1.99%) Senior Developer
Libraries, Frameworks & Software Standards
1 104 (14.81%) Web Services
2 96 (13.68%) LAMP
3 33 (4.70%) XML
3 33 (4.70%) HTML
4 30 (4.27%) CSS
5 28 (3.99%) RabbitMQ
6 27 (3.85%) RESTful
6 27 (3.85%) .NET
7 23 (3.28%) Middleware
7 23 (3.28%) jQuery
8 22 (3.13%) Django
9 20 (2.85%) JSON
10 15 (2.14%) Ajax
10 15 (2.14%) J2EE
11 14 (1.99%) ASP.NET
12 13 (1.85%) XSLT
12 13 (1.85%) Spring
12 13 (1.85%) FIX Protocol
13 12 (1.71%) Celery
14 11 (1.57%) EJB
Miscellaneous
1 77 (10.97%) Data Centre
2 32 (4.56%) Clustering
2 32 (4.56%) Computer Science
3 30 (4.27%) Replication
4 28 (3.99%) Wiki
4 28 (3.99%) Analytical Skills
5 25 (3.56%) Public Cloud
6 24 (3.42%) Private Cloud
6 24 (3.42%) Management Information System
7 22 (3.13%) Foreign Exchange (FX)
7 22 (3.13%) Hybrid Cloud
8 20 (2.85%) Hedge funds
9 16 (2.28%) Eurex
10 11 (1.57%) Over-the-Top Content
10 11 (1.57%) Streaming Video
10 11 (1.57%) E-Learning
11 10 (1.42%) Digital Media
12 9 (1.28%) IPTV
13 8 (1.14%) EMC VNX
13 8 (1.14%) EMC VNXe
Operating Systems
1 672 (95.73%) Linux
2 294 (41.88%) Red Hat Enterprise Linux
3 263 (37.46%) Ubuntu
4 197 (28.06%) Windows
5 145 (20.66%) Debian
6 86 (12.25%) UNIX
7 74 (10.54%) Windows Server 2008
8 54 (7.69%) Fedora
9 41 (5.84%) Windows Server 2012
10 30 (4.27%) Mac OS X
10 30 (4.27%) Windows Server 2003
11 25 (3.56%) SUSE
12 19 (2.71%) Solaris
13 15 (2.14%) Scientific Linux
14 13 (1.85%) Amazon Linux
15 11 (1.57%) Windows 7
16 6 (0.85%) Apple iOS
17 5 (0.71%) VMS
18 4 (0.57%) Android
19 3 (0.43%) AIX
Processes & Methodologies
1 236 (33.62%) DevOps
2 159 (22.65%) Agile Software Development
3 144 (20.51%) Configuration Management
4 110 (15.67%) E-Commerce
5 92 (13.11%) Load Balancing
6 90 (12.82%) Continuous Integration
7 54 (7.69%) Open Source
8 51 (7.26%) Performance Tuning
9 50 (7.12%) ITIL
10 41 (5.84%) Project Management
11 36 (5.13%) Scrum
12 34 (4.84%) Mentoring
13 33 (4.70%) Disaster Recovery
14 32 (4.56%) Change Management
15 29 (4.13%) Migration
16 28 (3.99%) Build Automation
17 27 (3.85%) Capacity Planning
18 22 (3.13%) Data Modelling
19 21 (2.99%) OO
20 17 (2.42%) Web Development
Programming Languages
1 325 (46.30%) Python
1 325 (46.30%) Bash Shell
2 203 (28.92%) Perl
3 196 (27.92%) Ruby
4 187 (26.64%) Java
5 166 (23.65%) PHP
6 126 (17.95%) SQL
7 81 (11.54%) Shell Script
8 61 (8.69%) JavaScript
9 27 (3.85%) PowerShell
10 26 (3.70%) C#
10 26 (3.70%) C++
11 22 (3.13%) C
12 14 (1.99%) Groovy
13 13 (1.85%) Scala
14 11 (1.57%) T-SQL
15 8 (1.14%) PHP5
16 7 (1.00%) Korn
16 7 (1.00%) AWK
16 7 (1.00%) Tcl
Qualifications
1 94 (13.39%) Degree
2 38 (5.41%) Cisco Certification
3 26 (3.70%) CCNP
4 18 (2.56%) VMware Certified Professional (VCP)
5 15 (2.14%) Microsoft Certification
6 13 (1.85%) MCSE
7 11 (1.57%) CCNA
7 11 (1.57%) RHCE
8 8 (1.14%) Security Cleared
9 7 (1.00%) SC Cleared
9 7 (1.00%) MCP
10 6 (0.85%) CCIE
10 6 (0.85%) MCSA
10 6 (0.85%) CCA
10 6 (0.85%) Citrix Certification
10 6 (0.85%) CCEA
10 6 (0.85%) A+ Certification
11 5 (0.71%) ITIL Certification
11 5 (0.71%) Linux+ Certification
11 5 (0.71%) LPIC
Quality Assurance & Compliance
1 22 (3.13%) QA
2 10 (1.42%) SLA
3 1 (0.14%) ISO/IEC 27001
3 1 (0.14%) PCI DSS
System Software
1 167 (23.79%) VMware Infrastructure
2 61 (8.69%) Active Directory
3 56 (7.98%) NFS
4 54 (7.69%) Postfix
5 47 (6.70%) XenServer
6 46 (6.55%) Docker
7 39 (5.56%) iptables
8 34 (4.84%) KVM
8 34 (4.84%) Xen
9 29 (4.13%) VMware ESXi
10 28 (3.99%) vSphere
11 26 (3.70%) Hyper-V
12 23 (3.28%) Varnish
13 22 (3.13%) VMware ESX
14 19 (2.71%) Samba
15 15 (2.14%) VirtualBox
16 14 (1.99%) Squid
17 8 (1.14%) EMC RecoverPoint
18 7 (1.00%) XenDesktop
19 5 (0.71%) vCloud
Systems Management
1 316 (45.01%) Puppet
2 224 (31.91%) Opscode Chef
3 134 (19.09%) Nagios
4 128 (18.23%) Ansible
5 58 (8.26%) ZABBIX
6 36 (5.13%) Salt
7 25 (3.56%) logstash
8 16 (2.28%) SELinux
8 16 (2.28%) Cacti
9 14 (1.99%) WSUS
9 14 (1.99%) Vagrant
10 13 (1.85%) ITRS Geneos
11 12 (1.71%) Cobbler
11 12 (1.71%) Icinga
12 10 (1.42%) Kibana
12 10 (1.42%) Pingdom
13 9 (1.28%) HAProxy
13 9 (1.28%) EMC NetWorker
14 7 (1.00%) CFEngine
14 7 (1.00%) Red Hat Spacewalk
Vendors
1 409 (58.26%) Red Hat
2 255 (36.32%) VMware
3 105 (14.96%) Cisco
4 92 (13.11%) Microsoft
5 46 (6.55%) Oracle
6 43 (6.13%) Citrix
7 37 (5.27%) Splunk
8 36 (5.13%) HP
9 33 (4.70%) Rackspace
10 24 (3.42%) Bloomberg
11 23 (3.28%) Google
12 19 (2.71%) CheckPoint
13 17 (2.42%) Reuters
14 16 (2.28%) AppDynamics
14 16 (2.28%) Juniper
15 15 (2.14%) SaltStack
16 13 (1.85%) Zend
17 11 (1.57%) hybris
18 10 (1.42%) EMC
18 10 (1.42%) Sybase
London
Burns Sheehan
Salary: £25000 - £35000 per annum + Benefits
Posted: 5 hours ago
City, London
Arrows Group
Salary: £70000 - £85000 per annum + £6k car, bonus, benefits!
Posted: 6 hours ago
South West London
Blue Glue
Salary: From £33,000 to £35,000 per annum
Posted: 6 hours ago
West London
Opus Resourcing Ltd
Salary: £60000 - £65000 per annum + Bens + Bonus to 20%
Posted: 22 hours ago
Central London / West End
Evolution Recruitment Solutions
Salary: 50,000 - 65,000 + benefits
Posted: 23 hours ago
South East London
Evolution Recruitment Solutions
Salary: 45,000 - 55,000 + benefits
Posted: 23 hours ago
Central London / West End
Evolution Recruitment Solutions
Salary: 35,000 - 45,000 + benefits
Posted: 23 hours ago
London
Red Sofa London
Salary: £50000.00 - £60000.00 per annum
Posted: Yesterday
London
Austin Fraser
Salary: £45000 - £50000 per annum + On Call + Bonus
Posted: Yesterday
London
Nigel Frank International Ltd
Salary: £60000 - £70000 per annum + benefits
Posted: Yesterday
Isleworth, Middlesex
Opus Resourcing Ltd
Salary: £45000 - £60000 per annum + Generous Bens + Bonus
Posted: Yesterday
Harrow, Middlesex
Capita Resourcing - IT Resourcing
Salary: £55000 - £60000 per annum + Bens
Posted: Yesterday
South West London
Robert Half
Salary: £55000 - £60000 per annum + 5% Pension, Life, Health
Posted: Yesterday
Central London / West End
Understanding Recruitment
Salary: £45000 - £65000 per annum + bens - bonus, gym, pens+
Posted: 2 days ago
London
Digitech Resourcing Ltd
Salary: Up to £70,000 per annum
Posted: 3 days ago
London
Digitech Resourcing Ltd
Salary: Up to £65,000 per annum
Posted: 3 days ago
London
Digitech Resourcing Ltd
Salary: Up to £50,000 per annum
Posted: 3 days ago
London
Digitech Resourcing Ltd
Salary: Up to £70,000 per annum
Posted: 3 days ago
West London
Bridge Noble
Salary: £55000 - £60000 per annum + Excellent Benefits
Posted: 3 days ago