The table below looks at the statistics for CentOS skills in IT jobs advertised for the City of London region. Included is a guide to the average salaries offered in IT jobs that have cited CentOS over the 3 months to 13 February 2016 with a comparison to the same period in the previous 2 years.

Location
3 months to
13 Feb 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 231 277 248
Rank change year-on-year
+46 -29
Permanent jobs citing CentOS 25 45 68
As % of all permanent IT jobs located in the City of London 0.38% 0.44% 0.65%
As % of the Operating Systems category 1.58% 1.67% 2.35%
Number of salaries quoted 25 42 63
Average salary £70,000 £56,250 £50,000
Average salary % change year-on-year
+24.44% +12.50%
90% offered a salary of more than £47,500 £37,500 £33,700
10% offered a salary of more than £84,500 £70,000 £61,500
UK excluding London average salary £45,000 £40,000 £43,500
% change year-on-year
+12.50% -8.04%
CentOS
London

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in permanent jobs advertised in the City of London region.

Operating Systems Category
City of London
Permanent IT job ads with a match in the
Operating Systems category
1581 2688 2895
As % of all permanent IT jobs located in the City of London 23.88% 26.30% 27.59%
Number of salaries quoted 1394 2374 2486
Average salary £52,500 £50,000 £50,000
Average salary % change year-on-year
+5.00% -
90% offered a salary of more than £31,250 £29,000 £29,500
10% offered a salary of more than £80,000 £72,500 £72,500
UK excluding London average salary £37,500 £37,500 £37,500

CentOS
Jobs Demand Trend in the City of London

This chart provides a 3-month moving total of permanent IT jobs citing CentOS across the City of London region as a proportion of the total demand within the Operating Systems category.

CentOS Jobs Demand Trend in the City of London

CentOS
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS across the City of London region.

CentOS Salary Trend in the City of London

CentOS
Salary Histogram in the City of London

This chart provides a salary histogram for IT jobs citing CentOS across the City of London region over the 3 months to 13 February 2016.

CentOS Salary Histogram in the City of London

CentOS
Top 30 Related IT Skills in the City of London

For the 6 months to 13 February 2016, IT jobs across the City of 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 58 (86.57%) Linux
2 35 (52.24%) MySQL
3 32 (47.76%) VMware
3 32 (47.76%) Git (software)
4 31 (46.27%) PHP
5 27 (40.30%) Puppet
6 24 (35.82%) LAMP
6 24 (35.82%) DevOps
7 23 (34.33%) Windows
7 23 (34.33%) Python
8 22 (32.84%) LDAP
9 20 (29.85%) Red Hat
9 20 (29.85%) Amazon AWS
9 20 (29.85%) Continuous Integration
9 20 (29.85%) Ruby
10 19 (28.36%) jQuery
10 19 (28.36%) VMware Infrastructure
10 19 (28.36%) SQL
11 18 (26.87%) Data Modelling
11 18 (26.87%) Debian
11 18 (26.87%) Bash Shell
11 18 (26.87%) Jenkins
11 18 (26.87%) Opscode Chef
12 16 (23.88%) Red Hat Enterprise Linux
12 16 (23.88%) Web Development
12 16 (23.88%) PostgreSQL
12 16 (23.88%) Java
12 16 (23.88%) Active Directory
13 15 (22.39%) JavaScript
13 15 (22.39%) Management Information System

CentOS
Top Related IT Skills in the City of London by Category

For the 6 months to 13 February 2016, IT jobs across the City of 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 14 (20.90%) Apache
2 11 (16.42%) Moodle
3 8 (11.94%) nginx
4 7 (10.45%) Confluence
4 7 (10.45%) MediaWiki
5 5 (7.46%) Apache Spark
6 3 (4.48%) Elasticsearch
6 3 (4.48%) Tomcat
7 2 (2.99%) Node.js
8 1 (1.49%) Drupal
8 1 (1.49%) MS Project Server
8 1 (1.49%) SharePoint
8 1 (1.49%) Skype for Business
Applications
1 5 (7.46%) MS Excel
2 4 (5.97%) MS PowerPoint
2 4 (5.97%) MS Visio
Cloud Services
1 20 (29.85%) Amazon AWS
2 14 (20.90%) GitHub
3 10 (14.93%) Microsoft Azure
4 5 (7.46%) Amazon S3
5 4 (5.97%) Datadog
6 1 (1.49%) Amazon CloudWatch
6 1 (1.49%) Amazon EC2
6 1 (1.49%) Amazon ELB
6 1 (1.49%) Amazon SQS
Communications & Networking
1 22 (32.84%) LDAP
2 15 (22.39%) SSH
3 12 (17.91%) VPN
4 11 (16.42%) Firewall
5 10 (14.93%) SSL
6 9 (13.43%) DNS
7 8 (11.94%) BGP
7 8 (11.94%) EIGRP
8 7 (10.45%) IPsec
8 7 (10.45%) IPv6
8 7 (10.45%) LAN
8 7 (10.45%) Network Security
8 7 (10.45%) OSPF
8 7 (10.45%) WAN
9 5 (7.46%) Cisco ASA
9 5 (7.46%) DHCP
9 5 (7.46%) SMTP
10 4 (5.97%) Kerberos
10 4 (5.97%) SMS
10 4 (5.97%) Wireless
Database & Business Intelligence
1 35 (52.24%) MySQL
2 16 (23.88%) PostgreSQL
3 8 (11.94%) Relational Database
4 5 (7.46%) Hadoop
4 5 (7.46%) SQL Server
5 4 (5.97%) Big Data
5 4 (5.97%) NoSQL
6 3 (4.48%) MongoDB
7 2 (2.99%) CouchDB
7 2 (2.99%) Redis
8 1 (1.49%) Amazon RDS
8 1 (1.49%) Data Warehouse
8 1 (1.49%) MariaDB
Development Applications
1 32 (47.76%) Git (software)
2 18 (26.87%) Jenkins
3 12 (17.91%) JIRA
4 11 (16.42%) Subversion
5 7 (10.45%) Hudson
6 6 (8.96%) GitLab
6 6 (8.96%) Selenium
7 5 (7.46%) Atlassian Bamboo
7 5 (7.46%) PHPUnit
8 3 (4.48%) Maven
8 3 (4.48%) Sonatype Nexus
9 2 (2.99%) Mercurial
9 2 (2.99%) Vagrant
10 1 (1.49%) Team Foundation Server
General
1 8 (11.94%) Finance
2 7 (10.45%) Games
3 2 (2.99%) Advertising
4 1 (1.49%) Back Office
4 1 (1.49%) Telecoms
Job Titles
1 23 (34.33%) DevOps Engineer
2 21 (31.34%) Developer
3 11 (16.42%) LAMP Developer
3 11 (16.42%) Linux Developer
3 11 (16.42%) Linux Engineer
3 11 (16.42%) PHP Developer
3 11 (16.42%) PHP LAMP Developer
4 7 (10.45%) Java Developer
4 7 (10.45%) Linux DevOps Engineer
4 7 (10.45%) Linux/Unix DevOps
4 7 (10.45%) Senior Developer
4 7 (10.45%) Senior Java Developer
5 6 (8.96%) Analyst
5 6 (8.96%) Senior Analyst
5 6 (8.96%) Systems Engineer
6 5 (7.46%) Information Analyst
6 5 (7.46%) Information Security Analyst
6 5 (7.46%) Infrastructure Engineer
6 5 (7.46%) Security Analyst
6 5 (7.46%) Senior Security Analyst
Libraries, Frameworks & Software Standards
1 24 (35.82%) LAMP
2 19 (28.36%) jQuery
3 13 (19.40%) CSS
3 13 (19.40%) HTML
4 11 (16.42%) Ajax
4 11 (16.42%) Web Services
5 8 (11.94%) LAPP Stack
5 8 (11.94%) LEMP Stack
5 8 (11.94%) Sass
6 7 (10.45%) GWT
6 7 (10.45%) Thymeleaf
7 5 (7.46%) Behat
7 5 (7.46%) Sensu
7 5 (7.46%) Symfony
8 4 (5.97%) RabbitMQ
8 4 (5.97%) WebSockets
9 3 (4.48%) Django
10 2 (2.99%) HTML5
10 2 (2.99%) JSON
10 2 (2.99%) XML
Miscellaneous
1 15 (22.39%) Management Information System
2 13 (19.40%) Data Centre
3 11 (16.42%) e-Learning
3 11 (16.42%) Learning Management System
3 11 (16.42%) VLE
4 7 (10.45%) Mathematics
4 7 (10.45%) Wiki
5 5 (7.46%) Clustering
5 5 (7.46%) Computer Science
5 5 (7.46%) User Experience
5 5 (7.46%) VCE vBlock
6 4 (5.97%) Fintech
6 4 (5.97%) PKI
6 4 (5.97%) Replication
7 2 (2.99%) EMC VNX
8 1 (1.49%) Algorithms
8 1 (1.49%) Enterprise Software
8 1 (1.49%) Hybrid Cloud
8 1 (1.49%) Tandem
Operating Systems
1 58 (86.57%) Linux
2 23 (34.33%) Windows
3 18 (26.87%) Debian
4 16 (23.88%) Red Hat Enterprise Linux
5 14 (20.90%) Unix
5 14 (20.90%) Windows Server
6 11 (16.42%) Ubuntu
7 7 (10.45%) Windows Server 2003
8 5 (7.46%) Amazon Linux
8 5 (7.46%) Windows Server 2008
8 5 (7.46%) Windows Server 2012
9 2 (2.99%) VMS
10 1 (1.49%) Gentoo
10 1 (1.49%) Mac OS X
10 1 (1.49%) Solaris
Processes & Methodologies
1 24 (35.82%) DevOps
2 20 (29.85%) Continuous Integration
3 18 (26.87%) Data Modelling
4 16 (23.88%) Web Development
5 14 (20.90%) Agile Software Development
6 12 (17.91%) Project Management
7 11 (16.42%) Disaster Recovery
8 9 (13.43%) Capacity Planning
9 8 (11.94%) E-Commerce
9 8 (11.94%) ITIL
10 7 (10.45%) Build Automation
10 7 (10.45%) Configuration Management
10 7 (10.45%) Database Theory
10 7 (10.45%) High Availability
10 7 (10.45%) Information Security
10 7 (10.45%) Relational Database Theory
11 6 (8.96%) Automated Testing
11 6 (8.96%) Scrum
11 6 (8.96%) SOA
11 6 (8.96%) Workflow
Programming Languages
1 31 (46.27%) PHP
2 23 (34.33%) Python
3 20 (29.85%) Ruby
4 19 (28.36%) SQL
5 18 (26.87%) Bash Shell
6 16 (23.88%) Java
7 15 (22.39%) JavaScript
8 14 (20.90%) Perl
9 2 (2.99%) Groovy
9 2 (2.99%) PowerShell
10 1 (1.49%) C
10 1 (1.49%) PHP 5
10 1 (1.49%) Shell Script
10 1 (1.49%) T-SQL
Qualifications
1 7 (10.45%) Degree
2 6 (8.96%) CCNA
2 6 (8.96%) Cisco Certification
2 6 (8.96%) VMware Certified Professional (VCP)
3 4 (5.97%) MCP
3 4 (5.97%) MCSA
3 4 (5.97%) MCSE
3 4 (5.97%) Microsoft Certification
4 2 (2.99%) CCNP
Quality Assurance & Compliance
1 5 (7.46%) ISO/IEC 27001
2 1 (1.49%) QA
System Software
1 19 (28.36%) VMware Infrastructure
2 16 (23.88%) Active Directory
3 8 (11.94%) Docker
3 8 (11.94%) Postfix
3 8 (11.94%) vSphere
4 7 (10.45%) iptables
4 7 (10.45%) Samba
4 7 (10.45%) XenServer
5 5 (7.46%) VMware ESX
6 4 (5.97%) Hyper-V
6 4 (5.97%) VMware ESXi
7 1 (1.49%) KVM
7 1 (1.49%) Sendmail
7 1 (1.49%) Shibboleth
7 1 (1.49%) Squid
7 1 (1.49%) Varnish
Systems Management
1 27 (40.30%) Puppet
2 18 (26.87%) Opscode Chef
3 11 (16.42%) Ansible
3 11 (16.42%) Salt
4 8 (11.94%) Nagios
4 8 (11.94%) ZABBIX
5 5 (7.46%) Graphite
5 5 (7.46%) SCCM
6 4 (5.97%) Cacti
6 4 (5.97%) Rundeck
6 4 (5.97%) SELinux
6 4 (5.97%) WSUS
7 3 (4.48%) Ganglia
7 3 (4.48%) logstash
8 1 (1.49%) CA Service Virtualization
8 1 (1.49%) NetBackup
8 1 (1.49%) SCOM
8 1 (1.49%) Symantec Enterprise Vault
Vendors
1 32 (47.76%) VMware
2 20 (29.85%) Red Hat
3 9 (13.43%) Cisco
3 9 (13.43%) Rackspace
4 8 (11.94%) Citrix
5 6 (8.96%) Microsoft
6 5 (7.46%) Atlassian
6 5 (7.46%) New Relic
7 4 (5.97%) Akamai
7 4 (5.97%) Percona
7 4 (5.97%) SaltStack
8 2 (2.99%) EMC
8 2 (2.99%) Oracle
8 2 (2.99%) Splunk
9 1 (1.49%) AppDynamics
9 1 (1.49%) IBM
9 1 (1.49%) Remedy
9 1 (1.49%) Symantec
9 1 (1.49%) Twitter
9 1 (1.49%) WorldPay
City, London
Harrington Starr
Salary: £70000 - £90000 per annum
Posted: 13 hours ago
City, London
Vertical IT
Salary: £40000 - £65000 per annum + Fantastic Benefits
Posted: Yesterday
City, London
Deerfoot IT Resources Ltd
Salary: £60000 - £75000 per annum
Posted: 2 days ago
City, London
Oscar
Salary: £40000 - £50000 per annum + 35% Bonus, 25 days, Flexitime
Posted: 3 days ago
City, London
Quant Capital
Salary: Up to £80,000 per annum Bonus Medical Pension
Posted: 4 days ago
City, London
Oscar
Salary: £50000 - £55000 per annum
Posted: 4 days ago
City, London
Oscar
Salary: £40000 - £65000 per annum
Posted: 4 days ago
City, London
Vertical IT
Salary: £40000 - £65000 per annum + Fantastic Benefits
Posted: 5 days ago
City of London
harringtonstarr
Salary: £70000 - £85000 per annum
Posted: 7 days ago
City of London
Arrows Group Ltd
Salary: £65000 - £80000 per annum + stock options, benefits
Posted: 9 days ago
City, London
World Pay
Salary: Competitive
Posted: 12 days ago