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 29 December 2014 with a comparison to the same period in the previous 2 years.

Location
3 months to
29 Dec 2014
Same period 2013 Same period 2012
CentOS Linux
Rank 308 287 315
Rank change year-on-year
-21 +28
Permanent jobs citing CentOS 376 427 379
As % of all permanent IT jobs located in London 0.87% 0.96% 0.80%
As % of the Operating Systems category 3.06% 3.40% 2.83%
Number of salaries quoted 350 400 365
Average salary £47,500 £47,500 £45,000
Average salary % change year-on-year
- +5.55%
90% offered a salary of more than £35,000 £32,500 £32,500
10% offered a salary of more than £62,750 £61,500 £62,500
UK excluding London average salary £40,000 £40,000 £37,000
% change year-on-year
- +8.10%
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
12306 12552 13393
As % of all permanent IT jobs located in London 28.33% 28.17% 28.44%
Number of salaries quoted 10567 10572 11677
Average salary £47,500 £49,000 £47,500
Average salary % change year-on-year
-3.06% +3.15%
90% offered a salary of more than £27,500 £29,000 £29,500
10% offered a salary of more than £72,500 £67,500 £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 29 December 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 December 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 +4 54 £47,500 - 4
Croydon - 8 £27,000 -
Hammersmith - 7 £50,000 -
Bromley +17 3 £43,250 +8.12%
Kingston Upon Thames - 2 £37,500 -
Uxbridge -6 1 £22,500 -50.00%
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 29 December 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.

1 768 (97.71%) Linux
2 512 (65.14%) Red Hat
3 414 (52.67%) Puppet
4 376 (47.84%) Python
5 325 (41.35%) MySQL
6 323 (41.09%) Red Hat Enterprise Linux
7 319 (40.59%) Bash Shell
8 295 (37.53%) Perl
9 280 (35.62%) VMware
10 262 (33.33%) PHP
11 234 (29.77%) Apache
12 232 (29.52%) Ubuntu
13 228 (29.01%) Windows
14 224 (28.50%) DevOps
15 223 (28.37%) Opscode Chef
15 223 (28.37%) Ruby
16 209 (26.59%) Nagios
17 193 (24.55%) Git (software)
18 186 (23.66%) Java
19 176 (22.39%) Tomcat
20 168 (21.37%) VMware Infrastructure
21 166 (21.12%) Agile Software Development
22 165 (20.99%) SQL
22 165 (20.99%) Debian
23 150 (19.08%) LAMP
24 142 (18.07%) Jenkins
25 133 (16.92%) Firewall
25 133 (16.92%) TCP/IP
26 132 (16.79%) nginx
27 131 (16.67%) Amazon AWS

CentOS
Top Related IT Skills in London by Category

For the 6 months to 29 December 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
1 234 (29.77%) Apache
2 176 (22.39%) Tomcat
3 132 (16.79%) nginx
4 58 (7.38%) IIS
5 51 (6.49%) JBoss
6 50 (6.36%) MS Exchange
7 40 (5.09%) OpenStack
8 38 (4.83%) Elasticsearch
9 24 (3.05%) Node.js
10 23 (2.93%) WebLogic
11 21 (2.67%) Drupal
12 20 (2.54%) Apache Solr
12 20 (2.54%) Moodle
13 18 (2.29%) WordPress
13 18 (2.29%) Exchange Server 2010
14 16 (2.04%) Confluence
15 14 (1.78%) Lync
16 10 (1.27%) CMS
17 8 (1.02%) Jetty
18 6 (0.76%) Joomla!
Applications
1 46 (5.85%) MS Excel
2 4 (0.51%) MS Office
3 2 (0.25%) Photoshop
3 2 (0.25%) MS Visio
Business Applications
1 17 (2.16%) Magento
2 8 (1.02%) Dynamics CRM
3 3 (0.38%) Oracle General Ledger
4 2 (0.25%) Oracle BPM
Cloud Services
1 131 (16.67%) Amazon AWS
2 34 (4.33%) SaaS
3 26 (3.31%) Amazon EC2
4 23 (2.93%) Rackspace Cloud
5 17 (2.16%) Cloud Computing
6 15 (1.91%) Amazon S3
7 12 (1.53%) GitHub
8 10 (1.27%) IaaS
9 9 (1.15%) Office 365
10 8 (1.02%) PaaS
11 7 (0.89%) Microsoft Azure
11 7 (0.89%) Amazon ELB
11 7 (0.89%) SoftLayer
12 2 (0.25%) Amazon EMR
12 2 (0.25%) Route 53
12 2 (0.25%) Amazon SQS
13 1 (0.13%) CloudFront
13 1 (0.13%) Joyent
13 1 (0.13%) AWS Data Pipeline
13 1 (0.13%) Sumo Logic
Communications & Networking
1 133 (16.92%) TCP/IP
1 133 (16.92%) Firewall
2 116 (14.76%) DNS
3 87 (11.07%) LAN
4 85 (10.81%) LDAP
5 80 (10.18%) WAN
6 79 (10.05%) VPN
6 79 (10.05%) SAN
7 62 (7.89%) SSH
8 58 (7.38%) HTTP
9 44 (5.60%) SSL
10 43 (5.47%) SMTP
11 39 (4.96%) SNMP
12 38 (4.83%) DHCP
13 36 (4.58%) Ethernet
14 33 (4.20%) BGP
15 32 (4.07%) MPLS
15 32 (4.07%) Multicast
16 31 (3.94%) VLAN
16 31 (3.94%) NAS
Database & Business Intelligence
1 325 (41.35%) MySQL
2 90 (11.45%) MongoDB
3 74 (9.41%) NoSQL
4 67 (8.52%) Redis
5 60 (7.63%) PostgreSQL
6 46 (5.85%) SQL Server
7 42 (5.34%) Big Data
8 35 (4.45%) Relational Database
9 33 (4.20%) Hadoop
10 32 (4.07%) Apache Cassandra
11 24 (3.05%) CouchDB
12 23 (2.93%) MariaDB
13 19 (2.42%) DB2
14 15 (1.91%) Amazon DynamoDB
15 13 (1.65%) Riak
16 7 (0.89%) Couchbase
16 7 (0.89%) SQL Server 2005
17 6 (0.76%) RavenDB
18 5 (0.64%) Oracle Database
19 3 (0.38%) Amazon RDS
Development Applications
1 193 (24.55%) Git (software)
2 142 (18.07%) Jenkins
3 61 (7.76%) Subversion
4 38 (4.83%) Hudson
5 34 (4.33%) JIRA
6 32 (4.07%) Maven
7 22 (2.80%) Mercurial
8 18 (2.29%) Behat
9 15 (1.91%) Atlassian Bamboo
10 12 (1.53%) PHPUnit
11 9 (1.15%) Cucumber
12 6 (0.76%) Juju
12 6 (0.76%) Yeoman
12 6 (0.76%) Selenium
12 6 (0.76%) Ant
13 5 (0.64%) Gerrit
13 5 (0.64%) FishEye
14 4 (0.51%) Artifactory
14 4 (0.51%) Bazaar
15 3 (0.38%) VisualVM
General
1 95 (12.09%) Finance
2 42 (5.34%) Games
3 32 (4.07%) Retail
4 26 (3.31%) Back Office
5 20 (2.54%) Banking
5 20 (2.54%) Advertising
6 18 (2.29%) Telecoms
6 18 (2.29%) Marketing
7 14 (1.78%) Publishing
8 9 (1.15%) Law
9 6 (0.76%) Financial Institution
10 4 (0.51%) Legal
11 2 (0.25%) Spanish Language
Job Titles
1 311 (39.57%) Systems Administrator
1 311 (39.57%) Administrator
2 254 (32.32%) Linux Administrator
3 232 (29.52%) Linux Systems Administrator
4 121 (15.39%) Linux Engineer
5 97 (12.34%) DevOps Engineer
6 75 (9.54%) Developer
7 62 (7.89%) Linux DevOps Engineer
8 59 (7.51%) Senior Systems Administrator
9 43 (5.47%) Analyst
10 41 (5.22%) Systems Engineer
10 41 (5.22%) PHP Developer
11 39 (4.96%) Senior Linux Administrator
12 38 (4.83%) Senior Linux Systems Administrator
13 27 (3.44%) Network Engineer
13 27 (3.44%) Senior DevOps Engineer
14 26 (3.31%) Web Developer
14 26 (3.31%) Senior Linux Engineer
15 20 (2.54%) Infrastructure Engineer
16 18 (2.29%) Development Analyst
Libraries, Frameworks & Software Standards
1 150 (19.08%) LAMP
2 112 (14.25%) Web Services
3 94 (11.96%) HTML
4 77 (9.80%) CSS
5 53 (6.74%) HTML5
6 51 (6.49%) XML
7 44 (5.60%) jQuery
8 42 (5.34%) Symfony
9 31 (3.94%) Memcached
10 27 (3.44%) RESTful
11 24 (3.05%) JSON
11 24 (3.05%) Django
12 23 (2.93%) XSLT
13 22 (2.80%) .NET
14 21 (2.67%) RabbitMQ
15 20 (2.54%) REST
16 18 (2.29%) Backbone.js
17 17 (2.16%) Ajax
17 17 (2.16%) Zend Framework
18 12 (1.53%) SOAP
Miscellaneous
1 88 (11.20%) Open Source
2 46 (5.85%) Analytical Skills
3 36 (4.58%) Clustering
4 34 (4.33%) Replication
5 29 (3.69%) Hedge funds
6 27 (3.44%) Computer Science
7 24 (3.05%) E-Learning
8 20 (2.54%) VLE
9 17 (2.16%) Digital Media
10 16 (2.04%) Learning Management System
11 15 (1.91%) Social Media
12 14 (1.78%) Mobile App
13 13 (1.65%) Streaming Video
14 12 (1.53%) Management Information System
15 10 (1.27%) CESG
15 10 (1.27%) Data Extraction
16 8 (1.02%) Social Network
17 7 (0.89%) Spread Betting
17 7 (0.89%) Enterprise Software
18 6 (0.76%) Algorithms
Operating Systems
1 768 (97.71%) Linux
2 323 (41.09%) Red Hat Enterprise Linux
3 232 (29.52%) Ubuntu
4 228 (29.01%) Windows
5 165 (20.99%) Debian
6 105 (13.36%) UNIX
7 74 (9.41%) Windows Server 2008
8 47 (5.98%) Fedora
9 32 (4.07%) Mac OS X
10 24 (3.05%) Windows Server 2003
11 21 (2.67%) Windows Server 2012
12 19 (2.42%) SUSE
13 15 (1.91%) Windows 7
14 13 (1.65%) Apple iOS
15 12 (1.53%) Amazon Linux
16 10 (1.27%) Android
17 7 (0.89%) Mac OS
18 6 (0.76%) Windows 2000
19 5 (0.64%) Solaris
20 4 (0.51%) VMS
Processes & Methodologies
1 224 (28.50%) DevOps
2 166 (21.12%) Agile Software Development
3 106 (13.49%) Configuration Management
4 97 (12.34%) E-Commerce
5 92 (11.70%) ITIL
6 87 (11.07%) Load Balancing
7 79 (10.05%) Continuous Integration
8 54 (6.87%) Performance Tuning
9 44 (5.60%) Scrum
10 43 (5.47%) OO
11 38 (4.83%) Time Management
12 32 (4.07%) Web Development
13 31 (3.94%) OOP
14 29 (3.69%) Project Management
15 28 (3.56%) Service Management
15 28 (3.56%) Mentoring
16 24 (3.05%) Analytics
16 24 (3.05%) TDD
17 23 (2.93%) Service Delivery
18 22 (2.80%) Data Modelling
Programming Languages
1 376 (47.84%) Python
2 319 (40.59%) Bash Shell
3 295 (37.53%) Perl
4 262 (33.33%) PHP
5 223 (28.37%) Ruby
6 186 (23.66%) Java
7 165 (20.99%) SQL
8 65 (8.27%) JavaScript
9 55 (7.00%) Shell Script
10 50 (6.36%) PowerShell
11 32 (4.07%) PHP5
12 26 (3.31%) sed
13 18 (2.29%) Scala
14 17 (2.16%) AWK
15 16 (2.04%) C++
16 11 (1.40%) T-SQL
17 7 (0.89%) VBScript
17 7 (0.89%) XQuery
18 6 (0.76%) C#
18 6 (0.76%) OCaml
Qualifications
1 54 (6.87%) Degree
2 38 (4.83%) Cisco Certification
3 24 (3.05%) RHCE
4 22 (2.80%) Security Cleared
5 21 (2.67%) CCNA
6 19 (2.42%) VMware Certified Professional (VCP)
7 18 (2.29%) CCNP
8 13 (1.65%) Microsoft Certification
9 12 (1.53%) MCSE
10 10 (1.27%) MCP
11 7 (0.89%) CEH
11 7 (0.89%) MCITP
11 7 (0.89%) OSCP
11 7 (0.89%) OSCE
12 6 (0.76%) MCSA
13 5 (0.64%) SC Cleared
14 3 (0.38%) RHCSA
15 2 (0.25%) CCIE
15 2 (0.25%) CISSP
15 2 (0.25%) A+ Certification
Quality Assurance & Compliance
1 31 (3.94%) QA
2 23 (2.93%) ISO/IEC 27001
3 16 (2.04%) SLA
4 12 (1.53%) ISO 9001
4 12 (1.53%) ISO 14001
4 12 (1.53%) PCI DSS
5 1 (0.13%) Sarbanes-Oxley
System Software
1 168 (21.37%) VMware Infrastructure
2 65 (8.27%) vSphere
3 50 (6.36%) Active Directory
4 47 (5.98%) Xen
5 43 (5.47%) KVM
6 40 (5.09%) Varnish
7 33 (4.20%) Samba
8 31 (3.94%) Docker
8 31 (3.94%) XenServer
9 28 (3.56%) NFS
9 28 (3.56%) VMware ESXi
10 22 (2.80%) LXC
10 22 (2.80%) vCloud
11 14 (1.78%) Hyper-V
12 12 (1.53%) Postfix
12 12 (1.53%) Shibboleth
13 8 (1.02%) Terminal Services
14 7 (0.89%) Ceph
15 4 (0.51%) XenApp
16 3 (0.38%) Cygwin
Systems Management
1 414 (52.67%) Puppet
2 223 (28.37%) Opscode Chef
3 209 (26.59%) Nagios
4 105 (13.36%) ZABBIX
5 75 (9.54%) Cacti
6 62 (7.89%) Ansible
7 61 (7.76%) Salt
8 50 (6.36%) Vagrant
9 35 (4.45%) ITRS Geneos
10 31 (3.94%) CFEngine
11 28 (3.56%) Graphite
12 25 (3.18%) logstash
13 18 (2.29%) SELinux
14 17 (2.16%) WSUS
15 15 (1.91%) yum
16 13 (1.65%) Zenoss
16 13 (1.65%) HAProxy
16 13 (1.65%) Icinga
17 10 (1.27%) SCOM
17 10 (1.27%) Check_MK
Vendors
1 512 (65.14%) Red Hat
2 280 (35.62%) VMware
3 93 (11.83%) Cisco
4 91 (11.58%) Microsoft
5 56 (7.12%) Oracle
6 52 (6.62%) HP
7 50 (6.36%) Rackspace
8 49 (6.23%) Citrix
9 48 (6.11%) Zend
10 37 (4.71%) F5
11 29 (3.69%) Reuters
12 27 (3.44%) Bloomberg
12 27 (3.44%) Juniper
13 26 (3.31%) Perforce
14 20 (2.54%) NetApp
15 19 (2.42%) Riverbed
16 16 (2.04%) Dell
17 14 (1.78%) EMC
17 14 (1.78%) Akamai
18 13 (1.65%) Splunk
London
Burns Sheehan
Salary: £55000 - £65000 per annum + attractive benefits
Posted: Yesterday
London
Salt
Salary: £45000 - £55000 per annum + Bonus & Package
Posted: 2 days ago
London
Salt
Salary: £50000 - £55000 per annum + Bonus, Pension, Healthcare + Package
Posted: 2 days ago
West London
Client Server
Salary: £40k to £55k + bonus + benefits
Posted: 2 days ago
Central London / West End
Digitech Resourcing Ltd
Salary: £50,000 per annum + benefits
Posted: 5 days ago
London
Digitech Resourcing Ltd
Salary: From £35,000 to £50,000 per annum
Posted: 5 days ago
City, London
Bridge Noble
Salary: £35000 - £45000 per annum + Excellent Benefits
Posted: 5 days ago
London
Verticality Ltd
Salary: £36000 - £38000 per annum
Posted: 6 days ago
Central London / West End
Verticality Ltd
Salary: £35000 - £38000 per annum
Posted: 6 days ago
London
Austin Fraser Limited
Salary: £50000.00 - £60000.00 per annum + Bens
Posted: 9 days ago
South West London
Digitech Resourcing Ltd
Salary: From £50,000 to £70,000 per annum
Posted: 9 days ago
Hayes, Middlesex
Rackspace
Salary: Competitive
Posted: 10 days ago
London
Ampersand Consulting
Salary: £25000 - £32500 per annum + Benefits
Posted: 11 days ago
London
Hays IT - Uk Posting account
Salary: £60000.00 - £65000.00 per annum
Posted: 11 days ago
City of London
Computer Futures
Salary: £50000 - £55000 per annum + competitive
Posted: 12 days ago
West London
Yell
Salary: £40000 - £50000 per annum + Exc Bens
Posted: 13 days ago
London
Explore Group
Salary: £60000 per annum
Posted: 15 days ago
London
Propel London Ltd
Posted: 16 days ago
London
Progressive Recruitment
Salary: £45000 - £60000 per annum + competitive
Posted: 18 days ago
Central London / West End
Reed Business Information Ltd
Salary: From £60,000 to £70,000 per annum + 29 days + share ops scheme + pensi
Posted: 18 days ago