The table below looks at the statistics for CentOS skills in IT jobs advertised for the London region. Included is a guide to the salaries offered in IT jobs that have cited CentOS over the 3 months to 28 May 2016 with a comparison to the same period over the previous 2 years.

3 months to
28 May 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 330 367 408
Rank change year-on-year
+37 +41
Permanent jobs citing CentOS 355 343 310
As % of all permanent IT jobs located in London 0.87% 0.78% 0.63%
As % of the Operating Systems category 3.35% 2.84% 2.30%
Number of salaries quoted 312 289 281
Median salary £57,500 £54,000 £50,000
Median salary % change year-on-year
+6.48% +8.00%
90% offered a salary of more than £42,500 £34,500 £37,500
10% offered a salary of more than £82,500 £65,500 £62,500
UK excluding London median salary £50,000 £40,000 £37,500
% change year-on-year
+25.00% +6.66%
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
10606 12085 13500
As % of all permanent IT jobs located in London 25.89% 27.52% 27.56%
Number of salaries quoted 9247 10431 11576
Median salary £50,000 £50,000 £47,500
Median salary % change year-on-year
- +5.26%
90% offered a salary of more than £27,500 £27,500 £27,500
10% offered a salary of more than £75,000 £70,000 £72,500
UK excluding London median salary £37,500 £37,500 £36,000
% change year-on-year
- +4.16%

CentOS
Jobs Demand Trend in London

The demand trend of job ads across the London region citing CentOS as a proportion of all IT jobs with a match in 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 28 May 2016.

CentOS Salary Histogram in London

CentOS
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the London region over the 3 months to 28 May 2016. 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
(Click see detailed
statistics and trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +36 28 £53,750 +22.85% 9
Mayfair - 7 £100,000 -
Brentford - 6 £37,500 -
Croydon - 4 £47,500 -
Hammersmith +4 3 £65,000 +48.57%
Kingston Upon Thames - 3 £48,750 -
Harrow - 2 £53,750 - 1
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 28 May 2016, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the London region with a requirement for CentOS.

1 715 (100.00%) Linux
2 367 (51.33%) Red Hat
3 352 (49.23%) DevOps
4 350 (48.95%) Puppet
5 305 (42.66%) Python
6 294 (41.12%) Red Hat Enterprise Linux
7 280 (39.16%) VMware
8 268 (37.48%) Amazon AWS
9 260 (36.36%) MySQL
10 256 (35.80%) Ubuntu
11 255 (35.66%) Bash Shell
12 236 (33.01%) Ansible
13 225 (31.47%) Agile Software Development
14 222 (31.05%) Apache
15 221 (30.91%) Jenkins
16 197 (27.55%) Nagios
17 192 (26.85%) Opscode Chef
18 188 (26.29%) Perl
19 180 (25.17%) Java
20 178 (24.90%) Tomcat
21 173 (24.20%) Windows
21 173 (24.20%) Ruby
22 171 (23.92%) Configuration Management
23 157 (21.96%) Continuous Integration
24 155 (21.68%) VMware Infrastructure
25 144 (20.14%) Git (software)
25 144 (20.14%) LAMP
26 142 (19.86%) DNS
27 134 (18.74%) PHP
28 133 (18.60%) SQL

CentOS
Top Related IT Skills in London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 222 (31.05%) Apache
2 178 (24.90%) Tomcat
3 74 (10.35%) OpenStack
4 62 (8.67%) nginx
5 41 (5.73%) JBoss
6 30 (4.20%) IIS
7 26 (3.64%) Apache Spark
8 23 (3.22%) Node.js
9 22 (3.08%) Confluence
9 22 (3.08%) Elasticsearch
10 12 (1.68%) Moodle
11 11 (1.54%) Jetty
12 9 (1.26%) Apache ServiceMix
13 7 (0.98%) Cloud Foundry
14 6 (0.84%) Apache TomEE
14 6 (0.84%) WebLogic
14 6 (0.84%) WildFly
15 5 (0.70%) ArcGIS
15 5 (0.70%) MS Exchange
15 5 (0.70%) Zimbra
Applications
1 28 (3.92%) MS Excel
2 6 (0.84%) MS PowerPoint
2 6 (0.84%) MS Visio
3 1 (0.14%) Spreadsheet
Business Applications
1 3 (0.42%) Documaker
2 2 (0.28%) Remedy ITSM
3 1 (0.14%) CODA-Financials
3 1 (0.14%) Oracle Retail
Cloud Services
1 268 (37.48%) Amazon AWS
2 59 (8.25%) AWS CloudFormation
3 54 (7.55%) Amazon EC2
4 39 (5.45%) Microsoft Azure
5 34 (4.76%) Amazon S3
6 32 (4.48%) IaaS
7 31 (4.34%) Virtual Private Cloud
8 29 (4.06%) GitHub
9 23 (3.22%) Cloud Computing
9 23 (3.22%) SaaS
10 20 (2.80%) Amazon CloudWatch
11 15 (2.10%) Amazon ELB
12 9 (1.26%) Azure Active Directory
12 9 (1.26%) PaaS
13 7 (0.98%) Office 365
14 5 (0.70%) AWS OpsWorks
14 5 (0.70%) Google Apps
14 5 (0.70%) OpenShift
14 5 (0.70%) Route 53
14 5 (0.70%) SoftLayer
Communications & Networking
1 142 (19.86%) DNS
2 127 (17.76%) Firewall
3 122 (17.06%) SAN
4 105 (14.69%) TCP/IP
5 54 (7.55%) LDAP
6 50 (6.99%) WAN
7 43 (6.01%) LAN
8 34 (4.76%) Internet
8 34 (4.76%) VoIP
9 29 (4.06%) SSH
10 28 (3.92%) iSCSI
10 28 (3.92%) Kerberos
11 25 (3.50%) DHCP
12 23 (3.22%) VLAN
13 22 (3.08%) Asterisk PBX
14 21 (2.94%) Cisco Nexus
14 21 (2.94%) SMTP
15 17 (2.38%) Fibre Channel
15 17 (2.38%) HTTP
15 17 (2.38%) SSL
Database & Business Intelligence
1 260 (36.36%) MySQL
2 112 (15.66%) MongoDB
3 97 (13.57%) PostgreSQL
4 45 (6.29%) Apache Cassandra
5 37 (5.17%) NoSQL
6 29 (4.06%) Hadoop
6 29 (4.06%) Oracle Database
6 29 (4.06%) SQL Server
7 24 (3.36%) Redis
8 23 (3.22%) Amazon RDS
9 17 (2.38%) CouchDB
9 17 (2.38%) DB2
10 14 (1.96%) Apache Hive
11 9 (1.26%) Big Data
11 9 (1.26%) DataStax
12 8 (1.12%) Aerospike
13 6 (0.84%) OpenTSDB
13 6 (0.84%) Relational Database
14 5 (0.70%) Couchbase
14 5 (0.70%) QGIS
Development Applications
1 221 (30.91%) Jenkins
2 144 (20.14%) Git (software)
3 63 (8.81%) Maven
4 49 (6.85%) Subversion
5 37 (5.17%) Vagrant
6 31 (4.34%) Atlassian Bamboo
6 31 (4.34%) JIRA
6 31 (4.34%) TeamCity
7 26 (3.64%) Selenium
8 25 (3.50%) Sonatype Nexus
9 20 (2.80%) Gradle
10 18 (2.52%) Travis CI
11 17 (2.38%) PHPUnit
12 16 (2.24%) Ant
12 16 (2.24%) Cucumber
13 14 (1.96%) GitLab
14 11 (1.54%) Eclipse
14 11 (1.54%) GCC
14 11 (1.54%) IntelliJ
15 6 (0.84%) Visual Studio
General
1 103 (14.41%) Finance
2 58 (8.11%) Marketing
3 43 (6.01%) Telecoms
4 42 (5.87%) Games
5 16 (2.24%) Banking
6 13 (1.82%) Retail
7 8 (1.12%) Advertising
7 8 (1.12%) Law
7 8 (1.12%) Publishing
8 6 (0.84%) Online Betting
9 4 (0.56%) Back Office
9 4 (0.56%) Pharmaceutical
10 1 (0.14%) Japanese Language
10 1 (0.14%) Legal
10 1 (0.14%) Manufacturing
Job Titles
1 262 (36.64%) Administrator
2 209 (29.23%) Linux Administrator
3 205 (28.67%) Systems Administrator
4 202 (28.25%) DevOps Engineer
5 171 (23.92%) Linux Systems Administrator
6 161 (22.52%) Linux Engineer
7 130 (18.18%) Linux/Unix DevOps
8 96 (13.43%) Linux DevOps Engineer
9 49 (6.85%) Developer
10 42 (5.87%) DevOps Administrator
11 40 (5.59%) Systems Engineer
12 39 (5.45%) Analyst
12 39 (5.45%) Senior DevOps Engineer
13 38 (5.31%) AWS Engineer
14 37 (5.17%) Cloud Engineer
15 35 (4.90%) Senior Linux Administrator
16 34 (4.76%) Linux DevOps Administrator
17 32 (4.48%) Linux Support
17 32 (4.48%) Operations Engineer
17 32 (4.48%) Systems Support
Libraries, Frameworks & Software Standards
1 144 (20.14%) LAMP
2 92 (12.87%) Web Services
3 50 (6.99%) LEMP Stack
4 35 (4.90%) Memcached
5 30 (4.20%) SOAP
6 29 (4.06%) REST
7 28 (3.92%) HTML
8 22 (3.08%) CSS
8 22 (3.08%) Spring
9 21 (2.94%) J2EE
10 19 (2.66%) FIX Protocol
10 19 (2.66%) MCollective
11 18 (2.52%) ActiveMQ
11 18 (2.52%) jQuery
12 17 (2.38%) Behat
12 17 (2.38%) XML
13 16 (2.24%) ELK Stack
13 16 (2.24%) RabbitMQ
14 15 (2.10%) Apache Camel
14 15 (2.10%) JMS
Miscellaneous
1 67 (9.37%) Data Centre
2 49 (6.85%) Computer Science
3 39 (5.45%) Analytical Skills
4 36 (5.03%) Fintech
4 36 (5.03%) User Experience
5 25 (3.50%) Algorithms
6 18 (2.52%) e-Learning
6 18 (2.52%) IPTV
6 18 (2.52%) Management Information System
6 18 (2.52%) Mathematics
6 18 (2.52%) Over-the-Top Content
7 16 (2.24%) Private Cloud
8 13 (1.82%) Clustering
8 13 (1.82%) Foreign Exchange (FX)
8 13 (1.82%) Hedge funds
8 13 (1.82%) Mobile App
9 12 (1.68%) VLE
10 11 (1.54%) HP StoreVirtual
10 11 (1.54%) Mobile Games
11 10 (1.40%) Replication
Operating Systems
1 715 (100.00%) Linux
2 294 (41.12%) Red Hat Enterprise Linux
3 256 (35.80%) Ubuntu
4 173 (24.20%) Windows
5 121 (16.92%) Unix
6 106 (14.83%) Debian
7 57 (7.97%) Windows Server
8 52 (7.27%) Windows Server 2008
9 40 (5.59%) Windows Server 2012
10 22 (3.08%) Amazon Linux
11 21 (2.94%) Fedora
12 17 (2.38%) Windows Server 2003
13 16 (2.24%) Solaris
14 15 (2.10%) FreeBSD
15 14 (1.96%) SUSE
16 13 (1.82%) Oracle Linux
17 10 (1.40%) Mac OS X
18 6 (0.84%) AIX
19 5 (0.70%) VMS
20 4 (0.56%) Android
Processes & Methodologies
1 352 (49.23%) DevOps
2 225 (31.47%) Agile Software Development
3 171 (23.92%) Configuration Management
4 157 (21.96%) Continuous Integration
5 120 (16.78%) Open Source
6 97 (13.57%) Scrum
7 61 (8.53%) E-Commerce
8 60 (8.39%) Continuous Improvement
9 48 (6.71%) Security Patching
10 44 (6.15%) High Availability
11 40 (5.59%) ITIL
11 40 (5.59%) Kanban
12 31 (4.34%) Load Balancing
13 29 (4.06%) Root Cause Analysis
13 29 (4.06%) Web Development
14 27 (3.78%) Continuous Delivery
14 27 (3.78%) Software Engineering
15 25 (3.50%) Analytics
16 23 (3.22%) Mentoring
17 22 (3.08%) TDD
Programming Languages
1 305 (42.66%) Python
2 255 (35.66%) Bash Shell
3 188 (26.29%) Perl
4 180 (25.17%) Java
5 173 (24.20%) Ruby
6 134 (18.74%) PHP
7 133 (18.60%) SQL
8 44 (6.15%) Shell Script
9 38 (5.31%) PowerShell
10 35 (4.90%) JavaScript
11 26 (3.64%) C++
12 25 (3.50%) C
13 13 (1.82%) Groovy
14 12 (1.68%) AWK
15 10 (1.40%) C#
16 9 (1.26%) Korn
17 8 (1.12%) Scala
18 6 (0.84%) Tcl
19 5 (0.70%) Go
20 4 (0.56%) PL/SQL
Qualifications
1 60 (8.39%) Degree
2 26 (3.64%) SC Cleared
2 26 (3.64%) Security Cleared
3 16 (2.24%) Cisco Certification
4 14 (1.96%) RHCE
5 12 (1.68%) CCNA
6 9 (1.26%) Microsoft Certification
6 9 (1.26%) PMI Certification
6 9 (1.26%) PMP
7 8 (1.12%) VMware Certified Professional (VCP)
8 7 (0.98%) MCITP
9 5 (0.70%) AWS Certification
9 5 (0.70%) CFA
9 5 (0.70%) MBA
9 5 (0.70%) PhD
9 5 (0.70%) RHCSA
10 4 (0.56%) CCNP
11 2 (0.28%) MCSE
12 1 (0.14%) MCP
12 1 (0.14%) MCSA
Quality Assurance & Compliance
1 27 (3.78%) QA
2 12 (1.68%) SLA
3 9 (1.26%) PCI DSS
4 1 (0.14%) DICOM
4 1 (0.14%) HL7
4 1 (0.14%) ISO/IEC 27001
4 1 (0.14%) SAS 70
System Software
1 155 (21.68%) VMware Infrastructure
2 125 (17.48%) Docker
3 111 (15.52%) NFS
4 99 (13.85%) VMware ESXi
5 79 (11.05%) Active Directory
6 52 (7.27%) KVM
7 41 (5.73%) Xen
8 33 (4.62%) vSphere
9 30 (4.20%) XenServer
10 24 (3.36%) Varnish
11 18 (2.52%) Corosync
12 17 (2.38%) Hyper-V
13 16 (2.24%) vCloud
14 15 (2.10%) GlusterFS
15 12 (1.68%) iptables
16 11 (1.54%) Squid
16 11 (1.54%) VMware ESX
17 9 (1.26%) Postfix
17 9 (1.26%) Samba
18 8 (1.12%) Microsoft Virtual Server
Systems Management
1 350 (48.95%) Puppet
2 236 (33.01%) Ansible
3 197 (27.55%) Nagios
4 192 (26.85%) Opscode Chef
5 44 (6.15%) HAProxy
6 42 (5.87%) ZABBIX
7 31 (4.34%) Cacti
8 28 (3.92%) logstash
9 21 (2.94%) Salt
10 18 (2.52%) Graphite
11 17 (2.38%) CFEngine
12 14 (1.96%) Packer
13 13 (1.82%) Pacemaker
13 13 (1.82%) yum
14 12 (1.68%) Red Hat Spacewalk
14 12 (1.68%) vRealize
15 10 (1.40%) Pingdom
16 9 (1.26%) Zenoss
17 8 (1.12%) NetBackup
17 8 (1.12%) SolarWinds Orion
Vendors
1 367 (51.33%) Red Hat
2 280 (39.16%) VMware
3 120 (16.78%) Cisco
4 95 (13.29%) HP
5 72 (10.07%) Microsoft
6 62 (8.67%) Oracle
7 44 (6.15%) Splunk
8 38 (5.31%) New Relic
9 29 (4.06%) Citrix
10 27 (3.78%) SaltStack
11 24 (3.36%) IBM
12 23 (3.22%) NetApp
13 18 (2.52%) AppDynamics
13 18 (2.52%) Atlassian
13 18 (2.52%) EMC
13 18 (2.52%) SolarWinds
14 14 (1.96%) 3PAR
14 14 (1.96%) F5
14 14 (1.96%) Rackspace
15 13 (1.82%) Google
London
Joseph Harry Ltd
Salary: £50000 - £65000 per annum + Bonus + 10% Pension
Posted: Yesterday
City, London
Talent International
Salary: £35000 - £40000 per annum + benefits and development
Posted: Yesterday
Central London / West End
Candour Solutions
Salary: Outstanding + Bens
Posted: Yesterday
London
Oho Group Ltd.
Salary: £55k - 75k per year
Posted: 2 days ago
London
Lorien Resourcing
Salary: £50000 - £60000 per annum + Bonus + Benefits
Posted: 2 days ago
Central London / West End
Client Server
Salary: £50k to £55k + bonus + benefits
Posted: 2 days ago
Central London / West End
Candour Solutions
Salary: Outstanding + Benefits
Posted: 2 days ago
West London
Evolution Recruitment Solutions
Salary: Circa; 42,000 + Exceptional Benefits Package
Posted: 3 days ago
South East London
Spencer Rose
Salary: £50,000 per annum
Posted: 3 days ago
Harrow, Middlesex
IDPP
Salary: Excellent Benefits
Posted: Yesterday
London
Austin Fraser
Salary: £45000.00 - £60000.00 per annum + Bens
Posted: 3 days ago
London
Lorien Resourcing
Salary: £45000 - £50000 per annum + Excellent benefits + Bonus
Posted: 3 days ago
London
Austin Fraser
Salary: £35000.00 - £45000.00 per annum + Bens
Posted: 3 days ago
London
Haybrook IT Resourcing Ltd
Salary: Negotiable
Posted: Yesterday
City, London
Miller Maxwell Ltd
Salary: From £65,000 to £80,000 per annum Bonus and benefits package
Posted: 5 days ago
London
Talent International
Salary: £25000 - £30000 per annum
Posted: 4 days ago
London
Opus Recruitment Solutions Ltd
Salary: £25000 - £40000 per annum
Posted: 4 days ago
London
Red Sofa London
Salary: £35000.00 - £55000.00 per annum + Excellent Benefits
Posted: 3 days ago
East London
HAYS INFORMATION TECHNOLOGY
Salary: £35000 - £42000 per annum + Benefits
Posted: 4 days ago
City, London
Miller Maxwell Ltd
Salary: From £50,000 to £70,000 per annum + Bonus & Benefits
Posted: 5 days ago
London
Burns Sheehan
Salary: £45000 - £53000 per annum + Bonus
Posted: 5 days ago
City of London
harringtonstarr
Salary: £70000 - £90000 per annum
Posted: 7 days ago
London
Computer Futures
Salary: competitive
Posted: 16 days ago
London
Client Server
Salary: £40k to £55k + bonus + benefits
Posted: 11 days ago
Central London
JD & Co
Salary: £45,000 - £55,000 per year
Posted: 10 days ago
City of London
Real Staffing
Salary: £40000 - £52000 per annum + competitive
Posted: 22 days ago
London
CPS Group Limited
Posted: 22 days ago
City, London
CGI
Salary: benefits
Posted: 18 days ago
London, Zone 1
MillsHill
Salary: £45,000 per year
Posted: 23 days ago
East London
mkodo
Salary: From £32,000 to £45,000 per annum + bonus
Posted: 22 days ago