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 salaries offered in IT jobs that have cited CentOS over the 3 months to 22 February 2017 with a comparison to the same period over the previous 2 years.

3 months to
22 Feb 2017
Same period 2016 Same period 2015
CentOS Linux
London / City of London
Rank 204 233 283
Rank change year-on-year
+29 +50
Permanent jobs citing CentOS 28 23 41
As % of all permanent IT jobs located in the City of London 0.56% 0.34% 0.40%
As % of the Operating Systems category 2.19% 1.41% 1.51%
Number of salaries quoted 27 23 37
Median salary £55,000 £60,000 £58,500
Median salary % change year-on-year
-8.33% +2.56%
90% offered a salary of more than £39,000 £47,500 £37,500
10% offered a salary of more than £100,000 £86,000 £70,000
UK excluding London median salary £45,000 £45,000 £41,000
% change year-on-year
- +9.75%

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
1280 1629 2708
As % of all permanent IT jobs located in the City of London 25.60% 23.74% 26.44%
Number of salaries quoted 1165 1434 2380
Median salary £55,000 £52,500 £50,000
Median salary % change year-on-year
+4.76% +5.00%
90% offered a salary of more than £28,500 £30,500 £29,000
10% offered a salary of more than £85,000 £72,500 £80,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Jobs Demand Trend in the City of London

The demand trend of job ads across the City of London region citing CentOS as a proportion of all IT jobs with a match in 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 22 February 2017.

CentOS Salary Histogram in the City of London

CentOS
Top 30 Related IT Skills in the City of London

For the 6 months to 22 February 2017, 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 City of London region with a requirement for CentOS.

1 55 (100.00%) Linux
2 36 (65.45%) Red Hat
3 35 (63.64%) DevOps
4 30 (54.55%) Python
5 29 (52.73%) Puppet
6 27 (49.09%) Red Hat Enterprise Linux
7 26 (47.27%) Windows
8 22 (40.00%) Apache
9 21 (38.18%) Opscode Chef
9 21 (38.18%) Ansible
10 20 (36.36%) Tomcat
10 20 (36.36%) Configuration Management
10 20 (36.36%) Finance
11 19 (34.55%) Java
11 19 (34.55%) Jenkins
12 17 (30.91%) Bash Shell
13 14 (25.45%) Continuous Integration
13 14 (25.45%) Docker
14 13 (23.64%) Windows Server
14 13 (23.64%) SQL
14 13 (23.64%) MySQL
15 12 (21.82%) Ruby
15 12 (21.82%) Ubuntu
16 11 (20.00%) Firewall
16 11 (20.00%) Unix
16 11 (20.00%) Windows Server 2012
16 11 (20.00%) Amazon AWS
16 11 (20.00%) Continuous Deployment
17 10 (18.18%) Open Source
17 10 (18.18%) VMware Infrastructure

CentOS
Top Related IT Skills in the City of 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 22 (40.00%) Apache
2 20 (36.36%) Tomcat
3 10 (18.18%) OpenStack
4 9 (16.36%) Apache Spark
5 7 (12.73%) Confluence
6 5 (9.09%) JBoss
7 3 (5.45%) nginx
8 2 (3.64%) IIS
8 2 (3.64%) WebSphere
9 1 (1.82%) Alfresco
9 1 (1.82%) Cloud Foundry
9 1 (1.82%) CloudStack
9 1 (1.82%) Exchange Server 2013
9 1 (1.82%) Jetty
9 1 (1.82%) Mongrel
9 1 (1.82%) MS Exchange
Applications
1 4 (7.27%) MS Excel
Cloud Services
1 11 (20.00%) Amazon AWS
2 3 (5.45%) Amazon EC2
3 2 (3.64%) DigitalOcean
3 2 (3.64%) IaaS
3 2 (3.64%) PaaS
4 1 (1.82%) Amazon ELB
4 1 (1.82%) Amazon S3
4 1 (1.82%) AWS CloudFormation
4 1 (1.82%) G Suite
4 1 (1.82%) Heroku
4 1 (1.82%) Linode
4 1 (1.82%) Microsoft Azure
4 1 (1.82%) SaaS
4 1 (1.82%) VULTR
Communications & Networking
1 11 (20.00%) Firewall
2 5 (9.09%) iSCSI
2 5 (9.09%) LAN
2 5 (9.09%) WAN
3 4 (7.27%) NetScaler
3 4 (7.27%) Network Security
3 4 (7.27%) VPN
4 3 (5.45%) Fibre Channel
4 3 (5.45%) SAN
4 3 (5.45%) TCP/IP
5 2 (3.64%) DNS
5 2 (3.64%) Internet
5 2 (3.64%) LDAP
5 2 (3.64%) SSH
6 1 (1.82%) BGP
6 1 (1.82%) DHCP
6 1 (1.82%) HTTPS
6 1 (1.82%) OSPF
6 1 (1.82%) VLAN
6 1 (1.82%) Wireless
Database & Business Intelligence
1 13 (23.64%) MySQL
2 9 (16.36%) Hadoop
3 7 (12.73%) MongoDB
3 7 (12.73%) NoSQL
4 5 (9.09%) Big Data
5 4 (7.27%) Data Warehouse
6 3 (5.45%) Apache Cassandra
6 3 (5.45%) SQL Server
7 2 (3.64%) PostgreSQL
7 2 (3.64%) SQL Server 2008
7 2 (3.64%) SQL Server 2012
8 1 (1.82%) Amazon RDS
8 1 (1.82%) Amazon Redshift
8 1 (1.82%) Oracle Database
8 1 (1.82%) Oracle Database 11g
8 1 (1.82%) Redis
Development Applications
1 19 (34.55%) Jenkins
2 9 (16.36%) Git (software)
3 8 (14.55%) JIRA
4 7 (12.73%) FishEye
5 6 (10.91%) Subversion
6 5 (9.09%) Vagrant
7 4 (7.27%) Maven
8 3 (5.45%) CruiseControl
9 1 (1.82%) Cucumber
9 1 (1.82%) GoCD
9 1 (1.82%) Hudson
9 1 (1.82%) JUnit
9 1 (1.82%) Travis CI
General
1 20 (36.36%) Finance
2 8 (14.55%) Front Office
3 3 (5.45%) Banking
4 2 (3.64%) Back Office
5 1 (1.82%) Games
5 1 (1.82%) Pharmaceutical
Job Titles
1 22 (40.00%) DevOps Engineer
2 10 (18.18%) Linux/Unix DevOps
3 8 (14.55%) Administrator
3 8 (14.55%) Linux Engineer
4 7 (12.73%) Senior DevOps
4 7 (12.73%) Senior DevOps Engineer
4 7 (12.73%) Systems Administrator
5 5 (9.09%) Architect
5 5 (9.09%) DevOps Architect
5 5 (9.09%) Linux DevOps Engineer
6 4 (7.27%) Linux Administrator
7 3 (5.45%) Analyst
7 3 (5.45%) DevOps Administrator
7 3 (5.45%) Junior
7 3 (5.45%) Lead DevOps
7 3 (5.45%) Linux Systems Administrator
7 3 (5.45%) Production Support Analyst
7 3 (5.45%) Site Engineer
7 3 (5.45%) Support Analyst
7 3 (5.45%) Support Engineer
Libraries, Frameworks & Software Standards
1 5 (9.09%) FIX Protocol
1 5 (9.09%) Web Services
2 3 (5.45%) Boost C++ Libraries
2 3 (5.45%) LAMP
2 3 (5.45%) Sensu
3 2 (3.64%) CSS
3 2 (3.64%) HTML
3 2 (3.64%) HTML5
4 1 (1.82%) CGI
4 1 (1.82%) LEMP Stack
4 1 (1.82%) Node.js
4 1 (1.82%) Servlets
Miscellaneous
1 8 (14.55%) Hedge funds
2 5 (9.09%) Computer Science
3 3 (5.45%) Fintech
3 3 (5.45%) Linux Command Line
4 1 (1.82%) Analytical Skills
4 1 (1.82%) Animation
4 1 (1.82%) Data Centre
4 1 (1.82%) Digital Media
4 1 (1.82%) Driving Licence
4 1 (1.82%) EMC VNX
4 1 (1.82%) Management Information System
4 1 (1.82%) Private Cloud
4 1 (1.82%) Replication
Operating Systems
1 55 (100.00%) Linux
2 27 (49.09%) Red Hat Enterprise Linux
3 26 (47.27%) Windows
4 13 (23.64%) Windows Server
5 12 (21.82%) Ubuntu
6 11 (20.00%) Unix
6 11 (20.00%) Windows Server 2012
7 9 (16.36%) Windows Server 2008
8 2 (3.64%) Debian
8 2 (3.64%) Fedora
8 2 (3.64%) Windows 7
9 1 (1.82%) Mac OS X
9 1 (1.82%) NetWare
9 1 (1.82%) Solaris
9 1 (1.82%) SUSE
9 1 (1.82%) Windows 10
9 1 (1.82%) Windows 8
Processes & Methodologies
1 35 (63.64%) DevOps
2 20 (36.36%) Configuration Management
3 14 (25.45%) Continuous Integration
4 11 (20.00%) Continuous Deployment
5 10 (18.18%) Open Source
6 9 (16.36%) Visualisation
7 7 (12.73%) Systematic Trading
8 6 (10.91%) Service Design
9 5 (9.09%) Load Balancing
9 5 (9.09%) Release Management
10 4 (7.27%) Analytics
10 4 (7.27%) E-Commerce
10 4 (7.27%) Performance Monitoring
11 3 (5.45%) Agile Software Development
11 3 (5.45%) Build Automation
11 3 (5.45%) Data Analysis
11 3 (5.45%) Data Analytics
11 3 (5.45%) Migration
11 3 (5.45%) Network Management
11 3 (5.45%) SDLC
Programming Languages
1 30 (54.55%) Python
2 19 (34.55%) Java
3 17 (30.91%) Bash Shell
4 13 (23.64%) SQL
5 12 (21.82%) Ruby
6 9 (16.36%) Perl
7 7 (12.73%) PHP
7 7 (12.73%) Shell Script
8 6 (10.91%) JavaScript
8 6 (10.91%) PowerShell
9 4 (7.27%) C++
10 3 (5.45%) AWK
10 3 (5.45%) PL/SQL
11 2 (3.64%) Go
11 2 (3.64%) PHP 5
11 2 (3.64%) T-SQL
12 1 (1.82%) C
Qualifications
1 5 (9.09%) Degree
2 3 (5.45%) Cisco Certification
2 3 (5.45%) VMware Certified Professional (VCP)
3 2 (3.64%) CCNA
3 2 (3.64%) MCTS
3 2 (3.64%) Microsoft Certification
4 1 (1.82%) CCNP
4 1 (1.82%) RHCE
Quality Assurance & Compliance
1 1 (1.82%) QA
System Software
1 14 (25.45%) Docker
2 10 (18.18%) VMware Infrastructure
3 4 (7.27%) Active Directory
4 3 (5.45%) Virtual Machines
4 3 (5.45%) VMware ESXi
5 2 (3.64%) XenServer
6 1 (1.82%) Hyper-V
6 1 (1.82%) Microsoft Virtual Server
6 1 (1.82%) pfSense
6 1 (1.82%) Shibboleth
6 1 (1.82%) Virtual Servers
6 1 (1.82%) vSphere
6 1 (1.82%) Xen
6 1 (1.82%) XenApp
Systems Management
1 29 (52.73%) Puppet
2 21 (38.18%) Ansible
2 21 (38.18%) Opscode Chef
3 7 (12.73%) Kubernetes
4 6 (10.91%) Oracle ZFS
4 6 (10.91%) Terraform
5 4 (7.27%) Nagios
6 3 (5.45%) CFEngine
6 3 (5.45%) Graphite
6 3 (5.45%) logstash
6 3 (5.45%) Mesos
7 2 (3.64%) SELinux
8 1 (1.82%) Cisco CUCM
8 1 (1.82%) EMC VPLEX
8 1 (1.82%) NetIQ Identity Manager
8 1 (1.82%) Packer
8 1 (1.82%) Simpana
Vendors
1 36 (65.45%) Red Hat
2 10 (18.18%) VMware
3 9 (16.36%) Microsoft
4 6 (10.91%) Atlassian
5 5 (9.09%) Oracle
6 4 (7.27%) HP
7 3 (5.45%) Citrix
8 2 (3.64%) Cisco
9 1 (1.82%) Avaya
9 1 (1.82%) CheckPoint
9 1 (1.82%) CommVault
9 1 (1.82%) Draytek
9 1 (1.82%) EMC
9 1 (1.82%) Fortinet
9 1 (1.82%) Google
9 1 (1.82%) Juniper
9 1 (1.82%) Kaseya
9 1 (1.82%) NETGEAR
9 1 (1.82%) Novell
9 1 (1.82%) SonicWALL
City, London
Miller Maxwell Ltd
Salary: From £35,000 to £45,000 per annum + Bonus & benefits
Posted: Yesterday
City, London
Franklin Fitch Limited
Salary: From £50,000 to £75,000 per annum
Posted: 5 days ago
City, London
Harrington Starr
Salary: £70000 - £90000 per annum
Posted: 3 days ago