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 29 June 2016 with a comparison to the same period over the previous 2 years.

3 months to
29 Jun 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 321 360 387
Rank change year-on-year
+39 +27
Permanent jobs citing CentOS 371 336 343
As % of all permanent IT jobs located in London 0.93% 0.75% 0.69%
As % of the Operating Systems category 3.63% 2.78% 2.52%
Number of salaries quoted 326 294 301
Median salary £55,000 £55,000 £50,000
Median salary % change year-on-year
- +10.00%
90% offered a salary of more than £40,000 £35,000 £37,500
10% offered a salary of more than £80,000 £70,000 £65,000
UK excluding London median salary £47,500 £40,000 £37,500
% change year-on-year
+18.75% +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
10230 12106 13611
As % of all permanent IT jobs located in London 25.64% 26.98% 27.53%
Number of salaries quoted 8961 10450 11709
Median salary £52,500 £50,000 £47,500
Median salary % change year-on-year
+5.00% +5.26%
90% offered a salary of more than £28,000 £28,500 £27,500
10% offered a salary of more than £75,000 £70,000 £75,000
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 29 June 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 29 June 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 +37 26 £50,000 - 16
Mayfair - 5 £100,000 -
Croydon - 4 £47,500 -
Harrow - 3 £50,000 - 1
Brentford - 2 £37,500 -
Hayes - 1 £60,000 -
Kingston Upon Thames - 1 - -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 29 June 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.

1 735 (100.00%) Linux
2 399 (54.29%) Red Hat
3 372 (50.61%) Puppet
4 355 (48.30%) DevOps
5 306 (41.63%) Red Hat Enterprise Linux
6 303 (41.22%) Python
7 294 (40.00%) Amazon AWS
8 290 (39.46%) VMware
9 259 (35.24%) MySQL
10 256 (34.83%) Bash Shell
11 253 (34.42%) Ansible
12 250 (34.01%) Ubuntu
13 232 (31.56%) Agile Software Development
14 229 (31.16%) Jenkins
15 222 (30.20%) Apache
16 204 (27.76%) Nagios
17 202 (27.48%) Windows
18 196 (26.67%) Ruby
19 194 (26.39%) Opscode Chef
20 190 (25.85%) Perl
21 179 (24.35%) Configuration Management
21 179 (24.35%) Tomcat
22 173 (23.54%) Java
23 160 (21.77%) DNS
23 160 (21.77%) VMware Infrastructure
24 144 (19.59%) Git (software)
25 140 (19.05%) Continuous Integration
26 138 (18.78%) SQL
27 136 (18.50%) Unix
28 135 (18.37%) PHP

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 (30.20%) Apache
2 179 (24.35%) Tomcat
3 69 (9.39%) OpenStack
4 65 (8.84%) nginx
5 47 (6.39%) JBoss
6 38 (5.17%) IIS
7 30 (4.08%) Confluence
8 24 (3.27%) Elasticsearch
9 21 (2.86%) Apache Spark
10 10 (1.36%) Jetty
10 10 (1.36%) WildFly
11 9 (1.22%) Apache ServiceMix
12 8 (1.09%) Moodle
12 8 (1.09%) WebLogic
13 7 (0.95%) Cloud Foundry
14 5 (0.68%) ArcGIS
14 5 (0.68%) Zimbra
15 4 (0.54%) Apache TomEE
15 4 (0.54%) Drupal
15 4 (0.54%) SharePoint
Applications
1 31 (4.22%) MS Excel
2 6 (0.82%) MS PowerPoint
2 6 (0.82%) MS Visio
Business Applications
1 3 (0.41%) Documaker
2 2 (0.27%) CODA-Financials
2 2 (0.27%) Remedy ITSM
3 1 (0.14%) Oracle Retail
Cloud Services
1 294 (40.00%) Amazon AWS
2 57 (7.76%) Amazon EC2
3 50 (6.80%) AWS CloudFormation
3 50 (6.80%) Microsoft Azure
4 35 (4.76%) Amazon S3
5 34 (4.63%) IaaS
6 33 (4.49%) SaaS
7 27 (3.67%) Cloud Computing
7 27 (3.67%) Virtual Private Cloud
8 26 (3.54%) GitHub
9 16 (2.18%) Amazon CloudWatch
10 14 (1.90%) PaaS
11 12 (1.63%) Azure Active Directory
12 11 (1.50%) Amazon ELB
13 10 (1.36%) Office 365
13 10 (1.36%) OpenShift
14 9 (1.22%) AWS OpsWorks
15 6 (0.82%) Amazon SQS
16 5 (0.68%) Google Apps
16 5 (0.68%) Route 53
Communications & Networking
1 160 (21.77%) DNS
2 130 (17.69%) Firewall
2 130 (17.69%) SAN
3 106 (14.42%) TCP/IP
4 62 (8.44%) LDAP
5 51 (6.94%) WAN
6 43 (5.85%) LAN
7 38 (5.17%) Kerberos
8 35 (4.76%) Internet
9 33 (4.49%) VoIP
10 29 (3.95%) Asterisk PBX
10 29 (3.95%) DHCP
10 29 (3.95%) iSCSI
11 26 (3.54%) SMTP
12 24 (3.27%) HTTP
12 24 (3.27%) SSH
13 23 (3.13%) VLAN
14 20 (2.72%) Cisco Nexus
15 18 (2.45%) Fibre Channel
16 17 (2.31%) VPN
Database & Business Intelligence
1 259 (35.24%) MySQL
2 117 (15.92%) MongoDB
3 96 (13.06%) PostgreSQL
4 45 (6.12%) Apache Cassandra
5 36 (4.90%) NoSQL
6 35 (4.76%) Redis
7 33 (4.49%) Hadoop
8 32 (4.35%) Oracle Database
8 32 (4.35%) SQL Server
9 28 (3.81%) Amazon RDS
10 16 (2.18%) CouchDB
10 16 (2.18%) DB2
11 9 (1.22%) Apache Hive
11 9 (1.22%) DataStax
12 8 (1.09%) Aerospike
12 8 (1.09%) Big Data
12 8 (1.09%) Relational Database
13 7 (0.95%) GIS
13 7 (0.95%) MariaDB
14 5 (0.68%) Couchbase
Development Applications
1 229 (31.16%) Jenkins
2 144 (19.59%) Git (software)
3 54 (7.35%) Maven
4 46 (6.26%) Subversion
5 41 (5.58%) JIRA
6 36 (4.90%) TeamCity
6 36 (4.90%) Vagrant
7 31 (4.22%) Atlassian Bamboo
8 26 (3.54%) Sonatype Nexus
9 19 (2.59%) Selenium
10 18 (2.45%) Gradle
11 15 (2.04%) Ant
11 15 (2.04%) Travis CI
12 13 (1.77%) Cucumber
13 12 (1.63%) GitLab
13 12 (1.63%) PHPUnit
14 11 (1.50%) Eclipse
14 11 (1.50%) GCC
14 11 (1.50%) IntelliJ
15 6 (0.82%) Visual Studio
General
1 123 (16.73%) Finance
2 51 (6.94%) Marketing
3 43 (5.85%) Telecoms
4 35 (4.76%) Games
5 18 (2.45%) Retail
6 16 (2.18%) Banking
7 12 (1.63%) Publishing
8 10 (1.36%) Advertising
9 8 (1.09%) Law
10 6 (0.82%) Back Office
11 4 (0.54%) Online Betting
11 4 (0.54%) Pharmaceutical
12 1 (0.14%) Japanese Language
12 1 (0.14%) Legal
12 1 (0.14%) Manufacturing
Job Titles
1 252 (34.29%) Administrator
2 206 (28.03%) DevOps Engineer
3 202 (27.48%) Linux Administrator
4 189 (25.71%) Systems Administrator
5 182 (24.76%) Linux Engineer
6 160 (21.77%) Linux Systems Administrator
7 126 (17.14%) Linux/Unix DevOps
8 99 (13.47%) Linux DevOps Engineer
9 52 (7.07%) AWS Engineer
10 51 (6.94%) Senior DevOps
11 49 (6.67%) Developer
12 44 (5.99%) Cloud Engineer
13 43 (5.85%) Senior Linux Administrator
13 43 (5.85%) Systems Engineer
14 41 (5.58%) AWS DevOps
15 39 (5.31%) Senior DevOps Engineer
16 37 (5.03%) Analyst
17 36 (4.90%) DevOps Administrator
18 30 (4.08%) Linux Systems Engineer
18 30 (4.08%) Operations Engineer
Libraries, Frameworks & Software Standards
1 129 (17.55%) LAMP
2 95 (12.93%) Web Services
3 52 (7.07%) LEMP Stack
4 38 (5.17%) Memcached
5 34 (4.63%) HTML
6 29 (3.95%) REST
7 28 (3.81%) CSS
7 28 (3.81%) SOAP
8 24 (3.27%) Spring
9 23 (3.13%) J2EE
10 21 (2.86%) ELK Stack
10 21 (2.86%) XML
11 20 (2.72%) JSON
12 19 (2.59%) Node.js
12 19 (2.59%) RESTful
13 18 (2.45%) FIX Protocol
14 17 (2.31%) ActiveMQ
14 17 (2.31%) RabbitMQ
15 14 (1.90%) Apache Camel
15 14 (1.90%) Sass
Miscellaneous
1 81 (11.02%) Data Centre
2 56 (7.62%) Computer Science
3 40 (5.44%) Analytical Skills
4 39 (5.31%) Fintech
5 27 (3.67%) User Experience
6 25 (3.40%) Algorithms
7 19 (2.59%) Clustering
8 18 (2.45%) IPTV
8 18 (2.45%) Over-the-Top Content
9 15 (2.04%) e-Learning
9 15 (2.04%) Statistics
10 14 (1.90%) Foreign Exchange (FX)
10 14 (1.90%) Management Information System
10 14 (1.90%) Private Cloud
11 13 (1.77%) Hedge funds
11 13 (1.77%) Mathematics
11 13 (1.77%) Mobile App
12 12 (1.63%) Replication
13 11 (1.50%) HP StoreVirtual
13 11 (1.50%) Mobile Games
Operating Systems
1 735 (100.00%) Linux
2 306 (41.63%) Red Hat Enterprise Linux
3 250 (34.01%) Ubuntu
4 202 (27.48%) Windows
5 136 (18.50%) Unix
6 100 (13.61%) Debian
7 65 (8.84%) Windows Server
7 65 (8.84%) Windows Server 2008
8 46 (6.26%) Windows Server 2012
9 21 (2.86%) Fedora
10 20 (2.72%) Amazon Linux
11 19 (2.59%) Windows Server 2003
12 18 (2.45%) FreeBSD
13 14 (1.90%) Solaris
13 14 (1.90%) SUSE
14 13 (1.77%) Oracle Linux
15 11 (1.50%) Mac OS X
16 6 (0.82%) AIX
17 5 (0.68%) VMS
18 3 (0.41%) Android
Processes & Methodologies
1 355 (48.30%) DevOps
2 232 (31.56%) Agile Software Development
3 179 (24.35%) Configuration Management
4 140 (19.05%) Continuous Integration
5 121 (16.46%) Open Source
6 91 (12.38%) Scrum
7 63 (8.57%) E-Commerce
8 57 (7.76%) Continuous Improvement
9 48 (6.53%) Security Patching
10 46 (6.26%) ITIL
11 39 (5.31%) Kanban
12 36 (4.90%) High Availability
13 34 (4.63%) Load Balancing
14 33 (4.49%) Software Engineering
15 32 (4.35%) Analytics
16 29 (3.95%) Root Cause Analysis
17 26 (3.54%) Mentoring
18 23 (3.13%) Information Security
18 23 (3.13%) Web Development
19 22 (2.99%) Migration
Programming Languages
1 303 (41.22%) Python
2 256 (34.83%) Bash Shell
3 196 (26.67%) Ruby
4 190 (25.85%) Perl
5 173 (23.54%) Java
6 138 (18.78%) SQL
7 135 (18.37%) PHP
8 52 (7.07%) Shell Script
9 46 (6.26%) PowerShell
10 39 (5.31%) JavaScript
11 27 (3.67%) C
12 25 (3.40%) C++
13 12 (1.63%) Korn
14 10 (1.36%) Groovy
15 9 (1.22%) PL/SQL
16 8 (1.09%) C#
17 7 (0.95%) AWK
17 7 (0.95%) Scala
18 6 (0.82%) Bourne shell
19 4 (0.54%) T-SQL
Qualifications
1 58 (7.89%) Degree
2 24 (3.27%) SC Cleared
2 24 (3.27%) Security Cleared
3 17 (2.31%) Cisco Certification
3 17 (2.31%) RHCE
4 13 (1.77%) CCNA
5 10 (1.36%) PMI Certification
5 10 (1.36%) PMP
6 9 (1.22%) Microsoft Certification
7 7 (0.95%) AWS Certification
7 7 (0.95%) MCITP
7 7 (0.95%) VMware Certified Professional (VCP)
8 4 (0.54%) CFA
8 4 (0.54%) MBA
8 4 (0.54%) PhD
8 4 (0.54%) RHCSA
9 3 (0.41%) CCNP
10 2 (0.27%) LPIC
10 2 (0.27%) MCSE
11 1 (0.14%) MCTS
Quality Assurance & Compliance
1 25 (3.40%) QA
2 12 (1.63%) SLA
3 7 (0.95%) 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
1 160 (21.77%) VMware Infrastructure
2 124 (16.87%) Docker
3 117 (15.92%) NFS
4 103 (14.01%) VMware ESXi
5 82 (11.16%) Active Directory
6 47 (6.39%) KVM
7 35 (4.76%) Xen
8 33 (4.49%) vSphere
8 33 (4.49%) XenServer
9 26 (3.54%) Virtual Machines
10 23 (3.13%) Corosync
11 22 (2.99%) Varnish
12 21 (2.86%) GlusterFS
13 18 (2.45%) Hyper-V
13 18 (2.45%) vCloud
14 12 (1.63%) Samba
14 12 (1.63%) VMware ESX
15 10 (1.36%) iptables
15 10 (1.36%) Squid
16 9 (1.22%) Virtual Servers
Systems Management
1 372 (50.61%) Puppet
2 253 (34.42%) Ansible
3 204 (27.76%) Nagios
4 194 (26.39%) Opscode Chef
5 50 (6.80%) HAProxy
6 37 (5.03%) logstash
7 35 (4.76%) ZABBIX
8 25 (3.40%) Cacti
9 20 (2.72%) Salt
10 18 (2.45%) Graphite
10 18 (2.45%) Pacemaker
11 16 (2.18%) vRealize
12 13 (1.77%) Kubernetes
12 13 (1.77%) Packer
13 12 (1.63%) CFEngine
14 11 (1.50%) Red Hat Spacewalk
15 9 (1.22%) Pingdom
15 9 (1.22%) yum
16 8 (1.09%) SELinux
16 8 (1.09%) SolarWinds Orion
Vendors
1 399 (54.29%) Red Hat
2 290 (39.46%) VMware
3 129 (17.55%) Cisco
4 96 (13.06%) HP
5 84 (11.43%) Microsoft
6 65 (8.84%) Oracle
7 44 (5.99%) Splunk
8 33 (4.49%) Citrix
9 32 (4.35%) New Relic
10 24 (3.27%) IBM
11 23 (3.13%) SaltStack
12 22 (2.99%) EMC
13 21 (2.86%) AppDynamics
14 20 (2.72%) NetApp
15 18 (2.45%) SolarWinds
16 14 (1.90%) 3PAR
16 14 (1.90%) Atlassian
16 14 (1.90%) F5
17 11 (1.50%) Google
17 11 (1.50%) Rackspace
London
Lorien Resourcing
Salary: £6500 - £75000 per annum + Car Allow + Bonus + Benefits
Posted: 3 hours ago
London
Joseph Harry Ltd
Salary: £40000 - £55000 per annum + Bonus + 10% Pension
Posted: 40 minutes ago
West London
Bridge Noble
Salary: £35000 - £45000 per annum + good benefits
Posted: 4 hours ago
City, London
Miller Maxwell Ltd
Salary: From £45,000 to £55,000 per annum + Bonus + Benefits
Posted: Yesterday
London
Preferred Choice
Salary: £25000 - £35000 per annum + benefits, bonus, holiday
Posted: 1 hour ago
London
ClearCube Consulting
Salary: From £50,000 to £65,000 per annum
Posted: Yesterday
West London
Talent International
Salary: £45000.00 - £50000.00 per annum + Excellent benefits
Posted: 21 hours ago
London
McGregor Boyall
Salary: £70000.00 per annum
Posted: 19 hours ago
London
Franklin Fitch Limited
Salary: From £80,000 to £90,000 per annum
Posted: Yesterday
City, London
ANSON MCCADE
Salary: £40,000 - £57,000
Posted: Yesterday
Central London / West End
Sainsbury's
Salary: Competitive
Posted: 22 hours ago
London
Opus Recruitment Solutions Ltd
Salary: £60000 - £65000 per annum, Benefits Excellent Bens
Posted: 4 days ago
City, London
Aglow Talent Ltd
Salary: From £35,000 to £45,000 per annum +bonus + benefits
Posted: 2 days ago
City, London
ANSON MCCADE
Salary: £40,000 - £48,000
Posted: Yesterday
City, London
Harvey Nash plc
Salary: £30000 - £60000 per annum
Posted: 20 hours ago
City, London
Evolution Recruitment Solutions
Salary: Circa; 45,000 - 55,000 + Excellent Benefits
Posted: 22 hours ago
City, London
ANSON MCCADE
Salary: £40,000 - £57,000
Posted: Yesterday
London
Harvey Nash plc
Salary: £40000 - £60000 per annum
Posted: 20 hours ago
London
Austin Fraser
Salary: £400 - £450 per day + Negotiable
Posted: 4 days ago
Harrow, Middlesex
Kanj Technologies Ltd
Salary: From £32,000 to £35,000 per annum
Posted: 4 days ago
London
Austin Fraser
Salary: £45000.00 - £60000.00 per annum + Bens
Posted: 4 days ago
City, London
Client Server
Salary: £60k to £75k + bonus + benefits
Posted: 5 days ago
London
Lorien Resourcing
Posted: 6 days ago
London
Austin Fraser
Salary: £50000.00 - £60000.00 per annum + Bens
Posted: 4 days ago
London
Austin Fraser
Salary: £35000.00 - £45000.00 per annum + Bens
Posted: 4 days ago
City, London
Harrington Starr
Salary: £70000 - £90000 per annum
Posted: 4 days ago
South East London
Spencer Rose
Salary: From £40,000 to £50,000 per annum
Posted: 6 days ago
City, London
Burns Sheehan
Salary: £50000 - £55000 per annum + Excellent Benefits
Posted: 6 days ago
London
Haybrook IT Resourcing Ltd
Salary: Negotiable
Posted: 4 days ago
City, London
BookingBug
Salary: Dependent on experience + benefits
Posted: 14 days ago