The first table below looks at the demand 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 29 July 2014 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all of the Operating Systems category for the London region.

Location
3 months to
29 Jul 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 308 307 329
Rank change year-on-year
-1 +22
Permanent jobs citing CentOS 393 347 369
As % of all permanent IT jobs located in London 0.82% 0.78% 0.71%
As % of the Operating Systems category 2.97% 2.84% 2.64%
Number of salaries quoted 342 322 301
Average salary £50,000 £50,000 £42,500
Average salary % change year-on-year
- +17.64%
90% offered a salary of more than £37,500 £37,500 £32,500
10% offered a salary of more than £65,000 £62,500 £60,000
UK excluding London average salary £40,000 £38,500 £35,000
% change year-on-year
+3.89% +10.00%
Operating Systems Category
London
Permanent IT job ads with a match in the
Operating Systems category
13212 12232 13994
As % of all permanent IT jobs located in London 27.46% 27.59% 27.11%
Number of salaries quoted 11375 10391 12257
Average salary £47,500 £50,000 £45,725
Average salary % change year-on-year
-5.00% +9.34%
90% offered a salary of more than £27,500 £30,000 £28,500
10% offered a salary of more than £72,500 £70,000 £70,000
UK excluding London average salary £36,895 £37,500 £37,500
% change year-on-year
-1.61% -
CentOS
England

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 29 July 2014.

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 29 July 2014. 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 +2 63 £45,000 -10.00% 14
Isleworth - 5 £65,250 - 1
Kingston Upon Thames - 2 £46,250 - 1
Hammersmith -6 1 - -
Bromley - 1 £45,000 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 29 July 2014, 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.

1 657 (95.08%) Linux
2 428 (61.94%) Red Hat
3 396 (57.31%) Puppet
4 308 (44.57%) Apache
5 306 (44.28%) Python
6 300 (43.42%) MySQL
7 296 (42.84%) Perl
8 277 (40.09%) Opscode Chef
9 265 (38.35%) DevOps
10 264 (38.21%) Bash Shell
11 262 (37.92%) Red Hat Enterprise Linux
12 232 (33.57%) Ubuntu
13 214 (30.97%) VMware
13 214 (30.97%) PHP
14 203 (29.38%) Nagios
14 203 (29.38%) Ruby
15 182 (26.34%) Java
16 174 (25.18%) Git (software)
17 170 (24.60%) Windows
18 151 (21.85%) SQL
19 148 (21.42%) Tomcat
20 144 (20.84%) Debian
21 142 (20.55%) Jenkins
22 141 (20.41%) VMware Infrastructure
23 135 (19.54%) DNS
24 129 (18.67%) TCP/IP
25 124 (17.95%) nginx
26 123 (17.80%) Amazon AWS
27 118 (17.08%) Load Balancing
28 114 (16.50%) UNIX

CentOS
Top Related IT Skills in London by Category

For the 6 months to 29 July 2014, 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
1 308 (44.57%) Apache
2 148 (21.42%) Tomcat
3 124 (17.95%) nginx
4 53 (7.67%) Elasticsearch
5 44 (6.37%) OpenStack
6 38 (5.50%) IIS
6 38 (5.50%) Drupal
7 24 (3.47%) WebLogic
8 23 (3.33%) WordPress
9 18 (2.60%) MS Exchange
10 16 (2.32%) Moodle
11 13 (1.88%) Confluence
12 12 (1.74%) GlassFish
13 10 (1.45%) Apache Solr
13 10 (1.45%) Node.js
14 9 (1.30%) Exchange Server 2010
14 9 (1.30%) Jetty
14 9 (1.30%) CMS
15 8 (1.16%) Sitecore CMS
16 7 (1.01%) Exchange Server 2007
Applications
1 30 (4.34%) MS Excel
2 3 (0.43%) MS Visio
3 1 (0.14%) Doxygen
Business Applications
1 3 (0.43%) Summit
1 3 (0.43%) Magento
2 2 (0.29%) Oracle CRM
2 2 (0.29%) RMDS
2 2 (0.29%) Dynamics AX
2 2 (0.29%) Google Analytics
3 1 (0.14%) SAP Oil and Gas
Cloud Services
1 123 (17.80%) Amazon AWS
2 27 (3.91%) Amazon EC2
3 26 (3.76%) SaaS
4 24 (3.47%) Amazon S3
5 13 (1.88%) Amazon ELB
6 9 (1.30%) Cloud Computing
6 9 (1.30%) GitHub
7 7 (1.01%) Rackspace Cloud
8 5 (0.72%) Microsoft Azure
9 3 (0.43%) Amazon SQS
9 3 (0.43%) CloudFront
9 3 (0.43%) Heroku
10 2 (0.29%) Office 365
11 1 (0.14%) Route 53
11 1 (0.14%) Google Apps
11 1 (0.14%) IaaS
11 1 (0.14%) Amazon EMR
11 1 (0.14%) Engine Yard
Communications & Networking
1 135 (19.54%) DNS
2 129 (18.67%) TCP/IP
3 93 (13.46%) Firewall
4 81 (11.72%) HTTP
5 70 (10.13%) SAN
6 67 (9.70%) SSH
7 63 (9.12%) VPN
8 58 (8.39%) Internet
9 53 (7.67%) LDAP
10 52 (7.53%) SSL
11 49 (7.09%) SMTP
11 49 (7.09%) Ethernet
12 42 (6.08%) DHCP
13 40 (5.79%) SNMP
14 39 (5.64%) LAN
15 37 (5.35%) NAS
16 26 (3.76%) F5 BIG-IP LTM
17 25 (3.62%) NetScaler
17 25 (3.62%) BIG-IP
17 25 (3.62%) WAN
Database & Business Intelligence
1 300 (43.42%) MySQL
2 100 (14.47%) MongoDB
3 93 (13.46%) NoSQL
4 86 (12.45%) PostgreSQL
5 71 (10.27%) Redis
6 63 (9.12%) Hadoop
7 54 (7.81%) Big Data
8 51 (7.38%) SQL Server
9 50 (7.24%) Apache Cassandra
10 27 (3.91%) Amazon DynamoDB
11 25 (3.62%) DB2
12 20 (2.89%) Relational Database
12 20 (2.89%) MariaDB
13 16 (2.32%) HBase
13 16 (2.32%) CouchDB
14 14 (2.03%) Riak
15 13 (1.88%) Amazon RDS
16 11 (1.59%) SQL Server 2008
17 7 (1.01%) Apache Hive
17 7 (1.01%) Mahout
Development Applications
1 174 (25.18%) Git (software)
2 142 (20.55%) Jenkins
3 74 (10.71%) Subversion
4 30 (4.34%) Maven
5 29 (4.20%) Hudson
6 25 (3.62%) JIRA
7 13 (1.88%) Juju
8 12 (1.74%) Atlassian Bamboo
9 10 (1.45%) Mercurial
10 9 (1.30%) Ant
11 7 (1.01%) Selenium
12 5 (0.72%) FishEye
13 4 (0.58%) Gerrit
14 3 (0.43%) PHPUnit
15 2 (0.29%) Cucumber
15 2 (0.29%) Karma Test Runner
15 2 (0.29%) Artifactory
16 1 (0.14%) Bower
16 1 (0.14%) SoapUI
16 1 (0.14%) Behat
General
1 89 (12.88%) Finance
2 80 (11.58%) Games
3 34 (4.92%) Telecoms
4 22 (3.18%) Banking
5 21 (3.04%) Online Betting
6 19 (2.75%) Retail
7 16 (2.32%) Marketing
8 14 (2.03%) Advertising
9 12 (1.74%) Publishing
10 7 (1.01%) Back Office
11 3 (0.43%) Law
12 2 (0.29%) Legal
12 2 (0.29%) Electronics
12 2 (0.29%) Pharmaceutical
12 2 (0.29%) Investment Banking
13 1 (0.14%) Financial Institution
13 1 (0.14%) Front Office
13 1 (0.14%) Manufacturing
Job Titles
1 278 (40.23%) Administrator
2 254 (36.76%) Systems Administrator
3 229 (33.14%) Linux Administrator
4 188 (27.21%) Linux Systems Administrator
5 129 (18.67%) Linux Engineer
6 113 (16.35%) DevOps Engineer
7 83 (12.01%) Senior Systems Administrator
8 65 (9.41%) Senior Linux Administrator
9 64 (9.26%) Senior Linux Systems Administrator
10 58 (8.39%) Developer
11 46 (6.66%) Systems Engineer
12 42 (6.08%) Senior Linux Engineer
13 41 (5.93%) Senior DevOps Engineer
14 32 (4.63%) Support Engineer
15 24 (3.47%) Analyst
16 22 (3.18%) Web Engineer
17 18 (2.60%) Operations Engineer
17 18 (2.60%) Network Engineer
17 18 (2.60%) Senior Developer
17 18 (2.60%) PHP Developer
Libraries, Frameworks & Software Standards
1 95 (13.75%) LAMP
2 92 (13.31%) Web Services
3 48 (6.95%) HTML
4 46 (6.66%) CSS
5 41 (5.93%) XML
6 26 (3.76%) RabbitMQ
7 25 (3.62%) jQuery
8 22 (3.18%) RESTful
8 22 (3.18%) .NET
9 21 (3.04%) Django
9 21 (3.04%) HTML5
10 19 (2.75%) J2EE
11 16 (2.32%) Middleware
12 15 (2.17%) Memcached
13 14 (2.03%) JSON
14 13 (1.88%) MSMQ
15 12 (1.74%) Sphinx
15 12 (1.74%) Regular Expression
16 11 (1.59%) MapReduce
16 11 (1.59%) ActiveMQ
Miscellaneous
1 99 (14.33%) Open Source
2 65 (9.41%) Clustering
3 47 (6.80%) Replication
4 36 (5.21%) Social Media
5 35 (5.07%) Computer Science
6 26 (3.76%) Online Games
7 16 (2.32%) E-Learning
8 10 (1.45%) Mobile App
9 9 (1.30%) Learning Management System
9 9 (1.30%) VLE
10 8 (1.16%) Hedge funds
11 7 (1.01%) Digital Media
12 6 (0.87%) Enterprise Software
12 6 (0.87%) Data Extraction
12 6 (0.87%) Foreign Exchange (FX)
12 6 (0.87%) Mobile Games
13 5 (0.72%) PKI
14 4 (0.58%) Artificial Intelligence
14 4 (0.58%) Field-Programmable Gate Array
14 4 (0.58%) Management Information System
Operating Systems
1 657 (95.08%) Linux
2 262 (37.92%) Red Hat Enterprise Linux
3 232 (33.57%) Ubuntu
4 170 (24.60%) Windows
5 144 (20.84%) Debian
6 114 (16.50%) UNIX
7 64 (9.26%) Fedora
8 59 (8.54%) Windows Server 2008
9 36 (5.21%) Apple iOS
10 34 (4.92%) Android
11 26 (3.76%) Windows Server 2012
12 24 (3.47%) Mac OS X
13 21 (3.04%) SUSE
14 20 (2.89%) Windows Server 2003
15 16 (2.32%) Windows 7
16 5 (0.72%) Solaris
17 4 (0.58%) VMS
17 4 (0.58%) SELinux
18 3 (0.43%) FreeBSD
19 2 (0.29%) Windows 8
Processes & Methodologies
1 265 (38.35%) DevOps
2 118 (17.08%) Load Balancing
3 100 (14.47%) E-Commerce
4 96 (13.89%) Agile Software Development
5 78 (11.29%) Configuration Management
6 74 (10.71%) Continuous Integration
7 69 (9.99%) ITIL
8 59 (8.54%) Scrum
9 38 (5.50%) Web Development
10 35 (5.07%) Service Delivery
11 34 (4.92%) Kanban
12 26 (3.76%) Analytics
13 25 (3.62%) Project Management
14 23 (3.33%) Statistical Analysis
14 23 (3.33%) Build Automation
15 22 (3.18%) Release Management
15 22 (3.18%) TDD
16 20 (2.89%) Performance Tuning
17 17 (2.46%) Root Cause Analysis
18 15 (2.17%) Change Management
Programming Languages
1 306 (44.28%) Python
2 296 (42.84%) Perl
3 264 (38.21%) Bash Shell
4 214 (30.97%) PHP
5 203 (29.38%) Ruby
6 182 (26.34%) Java
7 151 (21.85%) SQL
8 59 (8.54%) Shell Script
9 44 (6.37%) AWK
9 44 (6.37%) JavaScript
10 40 (5.79%) sed
11 27 (3.91%) Scala
12 23 (3.33%) PowerShell
13 16 (2.32%) C
13 16 (2.32%) PHP5
14 11 (1.59%) Korn
15 10 (1.45%) C++
15 10 (1.45%) Bourne shell
16 6 (0.87%) C#
17 3 (0.43%) VBScript
Qualifications
1 58 (8.39%) Degree
2 17 (2.46%) Cisco Certification
3 14 (2.03%) Security Cleared
4 13 (1.88%) Microsoft Certification
5 10 (1.45%) MCSE
5 10 (1.45%) CCNA
6 8 (1.16%) CCNP
7 6 (0.87%) VMware Certified Professional (VCP)
7 6 (0.87%) SC Cleared
8 5 (0.72%) OSCP
8 5 (0.72%) OSCE
8 5 (0.72%) CEH
8 5 (0.72%) MCP
8 5 (0.72%) Postgraduate
9 4 (0.58%) RHCE
10 3 (0.43%) Citrix Certification
11 2 (0.29%) CCEA
11 2 (0.29%) MCSA
11 2 (0.29%) A+ Certification
11 2 (0.29%) ITIL Certification
Quality Assurance & Compliance
1 26 (3.76%) QA
2 24 (3.47%) SLA
3 18 (2.60%) ISO/IEC 27001
4 15 (2.17%) PCI DSS
5 10 (1.45%) ISO 9001
5 10 (1.45%) ISO 14001
6 1 (0.14%) Sarbanes-Oxley
System Software
1 141 (20.41%) VMware Infrastructure
2 79 (11.43%) KVM
3 49 (7.09%) Xen
4 41 (5.93%) Active Directory
5 40 (5.79%) Varnish
6 35 (5.07%) NFS
7 26 (3.76%) vSphere
8 24 (3.47%) Hyper-V
9 18 (2.60%) Postfix
9 18 (2.60%) Samba
10 14 (2.03%) vCloud
11 12 (1.74%) VMware ESX
11 12 (1.74%) Squid
12 10 (1.45%) Sendmail
13 9 (1.30%) Shibboleth
13 9 (1.30%) VMware ESXi
14 8 (1.16%) XenApp
14 8 (1.16%) VirtualBox
15 7 (1.01%) XenServer
16 5 (0.72%) Oracle RAC
Systems Management
1 396 (57.31%) Puppet
2 277 (40.09%) Opscode Chef
3 203 (29.38%) Nagios
4 92 (13.31%) ZABBIX
5 69 (9.99%) Cacti
6 60 (8.68%) Salt
7 50 (7.24%) Ansible
8 48 (6.95%) CFEngine
9 32 (4.63%) Vagrant
10 27 (3.91%) SCOM
11 26 (3.76%) logstash
12 25 (3.62%) YUM
13 24 (3.47%) Zenoss
13 24 (3.47%) Opsview
14 19 (2.75%) Red Hat Spacewalk
15 16 (2.32%) Cobbler
16 14 (2.03%) HAProxy
17 13 (1.88%) Ganglia
18 12 (1.74%) Munin
19 8 (1.16%) SCCM
Vendors
1 428 (61.94%) Red Hat
2 214 (30.97%) VMware
3 70 (10.13%) Cisco
4 69 (9.99%) Oracle
5 60 (8.68%) JBoss
6 54 (7.81%) HP
7 50 (7.24%) Rackspace
8 44 (6.37%) Citrix
9 42 (6.08%) F5
10 37 (5.35%) Microsoft
11 25 (3.62%) Splunk
12 24 (3.47%) NetApp
13 22 (3.18%) Perforce
14 21 (3.04%) SaltStack
14 21 (3.04%) Juniper
15 18 (2.60%) Percona
16 17 (2.46%) Vertica
17 13 (1.88%) New Relic
18 12 (1.74%) Cloudera
18 12 (1.74%) Zend
City, London
Xist4 IT Recruitment
Salary: £45-65,000 + Bens
Posted: 9 hours ago
Isleworth, Middlesex
Opus Resourcing Ltd
Salary: £50000 - £65000 per annum + Generous Bens + Bonus
Posted: 11 hours ago
City, London
Quant Capital
Salary: Up to £40,000 per annum + bonus benefits
Posted: 13 hours ago
City, London
Oscar Associates (UK) Ltd
Salary: £35000 - £40000 per annum + Benefits
Posted: 14 hours ago
London
Eaglecliff
Salary: From £50,000 to £60,000 per annum + Benefits
Posted: 15 hours ago
London
ReThink Recruitment
Salary: £45000 - £60000 per annum + Full Benefits
Posted: 19 hours ago
Central London / West End
Araya Partners Ltd
Salary: From £70,000 to £85,000 per annum Salary is approx 70-85k base + bonus
Posted: Yesterday
Central London / West End
Araya Partners Ltd
Salary: From £50,000 to £70,000 per annum Salary negotiable depending on exper
Posted: Yesterday
City, London
FIRST POINT IT RESOURCING
Salary: £45000 - £55000 per annum
Posted: Yesterday
London
Open Select Recruitment
Salary: £40000 - £65000 per annum + benefits
Posted: Yesterday
City, London
Aston Carter
Salary: £60000 - £99000 per annum
Posted: Yesterday
London
Bridge Noble
Salary: £50000 - £60000 per annum + Stock + Benefits
Posted: Yesterday
London
ClearCube Consulting
Salary: From £50,000 to £65,000 per annum + bonus, shares & excellent benefits
Posted: 2 days ago
London
Burns Sheehan
Salary: £50000 - £70000 per annum + Excellent benefits
Posted: 2 days ago
London
Stratospherec
Salary: £35k - 40k per year + excellent benefits
Posted: 4 days ago
West London
ARC IT Recruitment Ltd
Salary: £60000 Per Annum
Posted: 4 days ago
London
Austin Fraser
Salary: £50000.00 - £60000.00 per annum + Benefits
Posted: 4 days ago
London
Austin Fraser
Salary: £40000.00 - £45000.00 per annum + 10% Bonus
Posted: 4 days ago
Kingston Upon Thames, Surrey
Austin Fraser
Salary: £35000.00 - £40000.00 per annum + Bens
Posted: 4 days ago
London
Austin Fraser
Salary: £30000.00 - £35000.00 per annum + Bens
Posted: 4 days ago