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 30 January 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
30 Jan 2015
Same period 2014 Same period 2013
CentOS Linux
Rank 327 281 323
Rank change year-on-year
-46 +42
Permanent jobs citing CentOS 333 426 351
As % of all permanent IT jobs located in London 0.80% 1.01% 0.78%
As % of the Operating Systems category 2.84% 3.54% 2.81%
Number of salaries quoted 299 398 334
Average salary £50,000 £50,000 £45,250
Average salary % change year-on-year
- +10.49%
90% offered a salary of more than £35,000 £32,500 £32,500
10% offered a salary of more than £65,000 £62,500 £65,000
UK excluding London average salary £42,000 £44,000 £36,500
% change year-on-year
-4.54% +20.54%
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
11740 12025 12491
As % of all permanent IT jobs located in London 28.29% 28.46% 27.83%
Number of salaries quoted 10067 10072 10801
Average salary £47,500 £47,500 £47,500
90% offered a salary of more than £27,500 £29,000 £30,000
10% offered a salary of more than £72,500 £70,000 £75,000
UK excluding London average salary £37,500 £37,500 £37,500

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 30 January 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 30 January 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 -15 45 £55,000 +10.00% 15
Hammersmith - 9 £50,000 -
Croydon - 9 £30,000 -
Bromley +25 3 £43,250 +8.12% 1
Twickenham - 2 £60,000 -
Uxbridge - 1 £22,500 - 1
Isleworth - 1 £70,000 - 1
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 30 January 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.

1 706 (97.78%) Linux
2 478 (66.20%) Red Hat
3 373 (51.66%) Puppet
4 339 (46.95%) Python
5 316 (43.77%) Red Hat Enterprise Linux
6 298 (41.27%) MySQL
7 286 (39.61%) Bash Shell
8 278 (38.50%) VMware
9 256 (35.46%) Perl
10 241 (33.38%) Windows
11 240 (33.24%) PHP
12 221 (30.61%) Apache
13 202 (27.98%) DevOps
14 196 (27.15%) Ruby
15 190 (26.32%) Ubuntu
15 190 (26.32%) Opscode Chef
16 185 (25.62%) Nagios
17 174 (24.10%) Git (software)
18 172 (23.82%) Java
19 166 (22.99%) Tomcat
19 166 (22.99%) VMware Infrastructure
20 142 (19.67%) Agile Software Development
21 140 (19.39%) Amazon AWS
22 139 (19.25%) SQL
23 137 (18.98%) LAMP
24 134 (18.56%) Debian
25 133 (18.42%) Firewall
26 127 (17.59%) TCP/IP
27 124 (17.17%) Jenkins
28 120 (16.62%) Web Services

CentOS
Top Related IT Skills in London by Category

For the 6 months to 30 January 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
1 221 (30.61%) Apache
2 166 (22.99%) Tomcat
3 120 (16.62%) nginx
4 61 (8.45%) IIS
5 59 (8.17%) MS Exchange
6 38 (5.26%) JBoss
7 37 (5.12%) OpenStack
8 32 (4.43%) Elasticsearch
9 28 (3.88%) Node.js
10 25 (3.46%) Exchange Server 2010
11 19 (2.63%) Apache Solr
11 19 (2.63%) Confluence
12 16 (2.22%) Moodle
13 15 (2.08%) WordPress
14 14 (1.94%) Lync
14 14 (1.94%) Drupal
15 12 (1.66%) WebLogic
16 6 (0.83%) Joomla!
16 6 (0.83%) Jetty
17 5 (0.69%) CMS
Applications
1 55 (7.62%) MS Excel
2 7 (0.97%) MS Office
3 3 (0.42%) Photoshop
4 1 (0.14%) MS Visio
Business Applications
1 16 (2.22%) Magento
2 9 (1.25%) Dynamics CRM
3 5 (0.69%) Oracle General Ledger
4 2 (0.28%) Oracle BPM
Cloud Services
1 140 (19.39%) Amazon AWS
2 36 (4.99%) Amazon EC2
3 22 (3.05%) SaaS
4 21 (2.91%) Amazon S3
5 19 (2.63%) Cloud Computing
6 18 (2.49%) Rackspace Cloud
7 15 (2.08%) GitHub
8 14 (1.94%) Office 365
8 14 (1.94%) IaaS
9 11 (1.52%) PaaS
10 9 (1.25%) Amazon ELB
11 8 (1.11%) Microsoft Azure
12 7 (0.97%) SoftLayer
13 4 (0.55%) Joyent
13 4 (0.55%) Heroku
13 4 (0.55%) Engine Yard
14 3 (0.42%) Sumo Logic
15 2 (0.28%) Route 53
15 2 (0.28%) Amazon SQS
16 1 (0.14%) AWS Data Pipeline
Communications & Networking
1 133 (18.42%) Firewall
2 127 (17.59%) TCP/IP
3 119 (16.48%) DNS
4 88 (12.19%) LAN
5 87 (12.05%) VPN
6 85 (11.77%) SAN
6 85 (11.77%) LDAP
7 77 (10.66%) WAN
8 52 (7.20%) HTTP
9 47 (6.51%) SMTP
10 46 (6.37%) SSH
11 40 (5.54%) SNMP
12 39 (5.40%) SSL
13 33 (4.57%) DHCP
13 33 (4.57%) Ethernet
14 32 (4.43%) MPLS
15 31 (4.29%) Multicast
16 30 (4.16%) iSCSI
16 30 (4.16%) BGP
17 29 (4.02%) VLAN
Database & Business Intelligence
1 298 (41.27%) MySQL
2 83 (11.50%) MongoDB
3 62 (8.59%) PostgreSQL
4 61 (8.45%) Redis
5 60 (8.31%) NoSQL
6 48 (6.65%) SQL Server
6 48 (6.65%) Relational Database
7 33 (4.57%) Big Data
8 30 (4.16%) Apache Cassandra
9 21 (2.91%) Hadoop
10 19 (2.63%) CouchDB
11 18 (2.49%) MariaDB
12 16 (2.22%) Amazon DynamoDB
13 10 (1.39%) Couchbase
14 9 (1.25%) Riak
15 8 (1.11%) SQL Server 2005
16 7 (0.97%) DB2
17 6 (0.83%) Amazon RDS
17 6 (0.83%) Oracle Database
17 6 (0.83%) RDBMS
Development Applications
1 174 (24.10%) Git (software)
2 124 (17.17%) Jenkins
3 64 (8.86%) Subversion
4 34 (4.71%) JIRA
5 33 (4.57%) Hudson
6 31 (4.29%) Maven
7 21 (2.91%) Behat
8 20 (2.77%) Mercurial
9 16 (2.22%) Atlassian Bamboo
10 15 (2.08%) PHPUnit
11 9 (1.25%) Ant
12 8 (1.11%) Cucumber
12 8 (1.11%) Selenium
13 6 (0.83%) Yeoman
14 4 (0.55%) FishEye
14 4 (0.55%) SoapUI
14 4 (0.55%) Bazaar
15 3 (0.42%) IntelliJ
15 3 (0.42%) Eclipse
15 3 (0.42%) VisualVM
General
1 71 (9.83%) Finance
2 31 (4.29%) Retail
3 30 (4.16%) Games
4 23 (3.19%) Telecoms
5 22 (3.05%) Back Office
6 19 (2.63%) Banking
6 19 (2.63%) Advertising
7 17 (2.35%) Marketing
8 8 (1.11%) Publishing
9 7 (0.97%) Law
10 5 (0.69%) Financial Institution
11 4 (0.55%) Legal
12 2 (0.28%) Spanish Language
Job Titles
1 288 (39.89%) Systems Administrator
2 281 (38.92%) Administrator
3 219 (30.33%) Linux Administrator
4 209 (28.95%) Linux Systems Administrator
5 104 (14.40%) Linux Engineer
6 97 (13.43%) DevOps Engineer
7 80 (11.08%) Developer
8 58 (8.03%) Linux DevOps Engineer
9 50 (6.93%) Systems Engineer
10 49 (6.79%) Senior Systems Administrator
11 42 (5.82%) PHP Developer
12 31 (4.29%) Senior Linux Administrator
13 30 (4.16%) Senior Linux Systems Administrator
13 30 (4.16%) Analyst
14 27 (3.74%) Web Developer
15 24 (3.32%) Senior DevOps Engineer
16 22 (3.05%) Infrastructure Engineer
17 20 (2.77%) Network Engineer
17 20 (2.77%) Senior Linux Engineer
18 17 (2.35%) Support Engineer
Libraries, Frameworks & Software Standards
1 137 (18.98%) LAMP
2 120 (16.62%) Web Services
3 94 (13.02%) HTML
4 74 (10.25%) CSS
5 54 (7.48%) HTML5
6 45 (6.23%) Symfony
6 45 (6.23%) XML
7 40 (5.54%) jQuery
8 29 (4.02%) Memcached
8 29 (4.02%) RESTful
9 27 (3.74%) .NET
10 25 (3.46%) XSLT
11 24 (3.32%) REST
12 23 (3.19%) RabbitMQ
13 22 (3.05%) Backbone.js
14 21 (2.91%) Ajax
15 20 (2.77%) JSON
16 19 (2.63%) Django
17 15 (2.08%) Zend Framework
17 15 (2.08%) CSS3
Miscellaneous
1 78 (10.80%) Open Source
2 56 (7.76%) Analytical Skills
3 36 (4.99%) Clustering
4 35 (4.85%) Replication
5 28 (3.88%) Computer Science
6 26 (3.60%) Hedge funds
7 22 (3.05%) Streaming Video
8 20 (2.77%) E-Learning
9 18 (2.49%) CESG
10 16 (2.22%) Mobile App
10 16 (2.22%) Digital Media
10 16 (2.22%) VLE
11 12 (1.66%) Learning Management System
12 10 (1.39%) Management Information System
12 10 (1.39%) Social Media
13 8 (1.11%) Social Network
14 7 (0.97%) Wiki
14 7 (0.97%) Spread Betting
14 7 (0.97%) Enterprise Software
15 6 (0.83%) Field-Programmable Gate Array
Operating Systems
1 706 (97.78%) Linux
2 316 (43.77%) Red Hat Enterprise Linux
3 241 (33.38%) Windows
4 190 (26.32%) Ubuntu
5 134 (18.56%) Debian
6 96 (13.30%) UNIX
7 87 (12.05%) Windows Server 2008
8 44 (6.09%) Fedora
9 35 (4.85%) Mac OS X
10 25 (3.46%) Windows Server 2012
11 23 (3.19%) Windows Server 2003
12 17 (2.35%) SUSE
13 16 (2.22%) Windows 7
14 12 (1.66%) Amazon Linux
15 10 (1.39%) Apple iOS
16 9 (1.25%) Solaris
17 7 (0.97%) Mac OS
17 7 (0.97%) Android
18 6 (0.83%) Windows 2000
19 2 (0.28%) VMS
Processes & Methodologies
1 202 (27.98%) DevOps
2 142 (19.67%) Agile Software Development
3 117 (16.20%) Configuration Management
4 91 (12.60%) E-Commerce
5 81 (11.22%) Load Balancing
6 78 (10.80%) Continuous Integration
7 70 (9.70%) ITIL
8 65 (9.00%) Performance Tuning
9 52 (7.20%) Time Management
10 45 (6.23%) OO
11 38 (5.26%) Scrum
12 32 (4.43%) OOP
13 29 (4.02%) Web Development
14 27 (3.74%) TDD
15 22 (3.05%) Mentoring
16 19 (2.63%) Project Management
16 19 (2.63%) CRM
16 19 (2.63%) Data Modelling
17 18 (2.49%) OO PHP
17 18 (2.49%) DRM
Programming Languages
1 339 (46.95%) Python
2 286 (39.61%) Bash Shell
3 256 (35.46%) Perl
4 240 (33.24%) PHP
5 196 (27.15%) Ruby
6 172 (23.82%) Java
7 139 (19.25%) SQL
8 73 (10.11%) JavaScript
9 52 (7.20%) Shell Script
10 36 (4.99%) PowerShell
11 29 (4.02%) PHP5
12 18 (2.49%) C++
13 16 (2.22%) sed
14 14 (1.94%) Scala
15 11 (1.52%) T-SQL
16 10 (1.39%) C#
17 8 (1.11%) AWK
18 7 (0.97%) VBScript
18 7 (0.97%) XQuery
19 6 (0.83%) Tcl
Qualifications
1 52 (7.20%) Degree
2 34 (4.71%) Cisco Certification
3 25 (3.46%) RHCE
4 22 (3.05%) VMware Certified Professional (VCP)
5 21 (2.91%) CCNA
6 14 (1.94%) CCNP
6 14 (1.94%) Security Cleared
7 11 (1.52%) MCSE
7 11 (1.52%) Microsoft Certification
8 8 (1.11%) MCSA
9 7 (0.97%) MCP
10 6 (0.83%) MCITP
10 6 (0.83%) SC Cleared
11 2 (0.28%) OSCP
11 2 (0.28%) OSCE
11 2 (0.28%) CEH
11 2 (0.28%) LPIC
11 2 (0.28%) MCTS
12 1 (0.14%) CCIE
12 1 (0.14%) IBM Certification
Quality Assurance & Compliance
1 31 (4.29%) QA
2 11 (1.52%) SLA
3 10 (1.39%) ISO/IEC 27001
4 7 (0.97%) PCI DSS
5 4 (0.55%) ISO 9001
5 4 (0.55%) ISO 14001
6 1 (0.14%) Sarbanes-Oxley
System Software
1 166 (22.99%) VMware Infrastructure
2 62 (8.59%) vSphere
3 56 (7.76%) Active Directory
4 41 (5.68%) XenServer
5 36 (4.99%) Varnish
6 34 (4.71%) Xen
7 32 (4.43%) Samba
8 30 (4.16%) Docker
9 29 (4.02%) NFS
10 24 (3.32%) VMware ESXi
10 24 (3.32%) KVM
11 21 (2.91%) LXC
12 18 (2.49%) vCloud
13 17 (2.35%) Postfix
14 16 (2.22%) Hyper-V
15 12 (1.66%) Terminal Services
16 8 (1.11%) Shibboleth
17 7 (0.97%) VMware ESX
18 4 (0.55%) Openswan
18 4 (0.55%) Ceph
Systems Management
1 373 (51.66%) Puppet
2 190 (26.32%) Opscode Chef
3 185 (25.62%) Nagios
4 86 (11.91%) ZABBIX
5 54 (7.48%) Cacti
6 52 (7.20%) Vagrant
7 50 (6.93%) Ansible
8 41 (5.68%) Salt
9 31 (4.29%) ITRS Geneos
10 25 (3.46%) WSUS
11 24 (3.32%) SELinux
12 23 (3.19%) logstash
13 21 (2.91%) Icinga
14 19 (2.63%) Graphite
15 15 (2.08%) CFEngine
16 12 (1.66%) yum
17 11 (1.52%) Ganglia
17 11 (1.52%) HAProxy
18 10 (1.39%) Red Hat Spacewalk
19 9 (1.25%) Cobbler
Vendors
1 478 (66.20%) Red Hat
2 278 (38.50%) VMware
3 103 (14.27%) Microsoft
4 85 (11.77%) Cisco
5 49 (6.79%) Citrix
5 49 (6.79%) HP
6 46 (6.37%) Zend
7 45 (6.23%) Oracle
8 44 (6.09%) Rackspace
9 28 (3.88%) Reuters
10 26 (3.60%) Juniper
11 24 (3.32%) Bloomberg
12 22 (3.05%) F5
12 22 (3.05%) Perforce
13 17 (2.35%) Akamai
14 16 (2.22%) Percona
14 16 (2.22%) NetApp
14 16 (2.22%) Dell
15 15 (2.08%) Splunk
16 14 (1.94%) Riverbed
City, London
Careerwise UK Limited
Salary: £35000 per annum + benefits
Posted: Yesterday
City, London
Harrington Starr
Salary: £50000 - £70000 per annum
Posted: Yesterday
City, London
Ashdown IT
Salary: £35000 - £50000 per annum + Benefits
Posted: Yesterday
Central London / West End
Digitech Resourcing Ltd
Salary: £50,000 per annum + benefits
Posted: Yesterday
City, London
Client Server
Salary: £65k to £75k + benefits
Posted: Yesterday
Uxbridge, Middlesex
Evolution Recruitment Solutions
Salary: 20000 - 23000 plus benefits
Posted: 2 days ago
Central London / West End
Evolution Recruitment Solutions
Salary: 37,000 - 45,000
Posted: 2 days ago
City, London
Careerwise UK Limited
Salary: £55000 per annum + excelllent benefits
Posted: 3 days ago
City, London
Senitor Associates
Salary: £30000 - £50000 per annum + great company
Posted: 3 days ago
London
Austin Fraser
Salary: £55000.00 - £80000.00 per annum + + Stock
Posted: 3 days ago
London
Austin Fraser
Salary: £40000.00 - £55000.00 per annum + Great Bens
Posted: 3 days ago
City, London
Opus Recruitment Solutions Ltd
Salary: £50000 - £60000 per annum
Posted: 3 days ago
London
PCR
Salary: £35000.00 - £40000.00 per annum + 3k & 28 days holiday
Posted: 4 days ago
Isleworth, Middlesex
Opus Resourcing Ltd
Salary: £50000 - £80000 per annum + Bens + on Call + Bonus
Posted: 4 days ago
London
Linux Recruit
Salary: From £55,000 to £65,000 per annum
Posted: 4 days ago
South East London
Oscar Associates (UK) Ltd
Salary: £40000 - £55000 per annum + Benefits
Posted: 4 days ago
City, London
Digital Pursuit Ltd
Salary: From £40,000 to £50,000 per annum
Posted: 4 days ago
London
Testing Circle Ltd
Salary: From £40,000 to £50,000 per annum + Benefits
Posted: 5 days ago
London
Harvey Nash plc
Salary: £50000 - £55000 per annum
Posted: 5 days ago
City, London
Miller Maxwell Ltd
Salary: From £55,000 to £80,000 per annum + Benefits + Bonus
Posted: 5 days ago