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 26 August 2016 with a comparison to the same period over the previous 2 years.

3 months to
26 Aug 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 226 257 268
Rank change year-on-year
+31 +11
Permanent jobs citing CentOS 23 53 67
As % of all permanent IT jobs located in the City of London 0.37% 0.54% 0.56%
As % of the Operating Systems category 1.45% 2.19% 2.07%
Number of salaries quoted 23 49 67
Median salary £50,000 £55,000 £45,000
Median salary % change year-on-year
-9.09% +22.22%
90% offered a salary of more than £43,000 £37,500 £40,000
10% offered a salary of more than £68,500 £70,000 £57,500
UK excluding London median salary £47,500 £42,500 £41,500
% change year-on-year
+11.76% +2.40%
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
1589 2424 3238
As % of all permanent IT jobs located in the City of London 25.63% 24.73% 26.85%
Number of salaries quoted 1441 2070 2844
Median salary £52,500 £50,000 £50,000
Median salary % change year-on-year
+5.00% -
90% offered a salary of more than £32,500 £28,000 £29,000
10% offered a salary of more than £80,000 £72,500 £75,000
UK excluding London median salary £38,000 £37,500 £36,500
% change year-on-year
+1.33% +2.73%

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 26 August 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 26 August 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 City of London region with a requirement for CentOS.

1 51 (100.00%) Linux
2 31 (60.78%) Red Hat
3 26 (50.98%) Configuration Management
3 26 (50.98%) Puppet
4 24 (47.06%) Red Hat Enterprise Linux
5 22 (43.14%) Finance
6 21 (41.18%) Bash Shell
7 20 (39.22%) Java
8 18 (35.29%) Python
8 18 (35.29%) Jenkins
9 17 (33.33%) DevOps
9 17 (33.33%) Unix
9 17 (33.33%) Maven
10 16 (31.37%) Ruby
10 16 (31.37%) VMware
10 16 (31.37%) Windows
11 14 (27.45%) Opscode Chef
11 14 (27.45%) VMware Infrastructure
12 13 (25.49%) Amazon AWS
12 13 (25.49%) Apache
12 13 (25.49%) SQL
12 13 (25.49%) MySQL
12 13 (25.49%) DNS
13 12 (23.53%) Nagios
13 12 (23.53%) Perl
13 12 (23.53%) PHP
13 12 (23.53%) Git (software)
14 11 (21.57%) Continuous Integration
14 11 (21.57%) Agile Software Development
15 10 (19.61%) Ubuntu

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 13 (25.49%) Apache
2 7 (13.73%) OpenStack
3 5 (9.80%) Apache Spark
3 5 (9.80%) IIS
3 5 (9.80%) Tomcat
4 1 (1.96%) Confluence
4 1 (1.96%) JBoss
4 1 (1.96%) SharePoint
4 1 (1.96%) WebLogic
Business Applications
1 1 (1.96%) CODA-Financials
Cloud Services
1 13 (25.49%) Amazon AWS
2 5 (9.80%) AWS CloudFormation
2 5 (9.80%) Microsoft Azure
3 3 (5.88%) Amazon CloudWatch
3 3 (5.88%) Amazon EC2
3 3 (5.88%) Amazon S3
3 3 (5.88%) Amazon SQS
3 3 (5.88%) IaaS
3 3 (5.88%) PaaS
4 2 (3.92%) Azure Active Directory
5 1 (1.96%) SaaS
5 1 (1.96%) SuccessFactors
Communications & Networking
1 13 (25.49%) DNS
2 10 (19.61%) TCP/IP
3 9 (17.65%) Internet
4 7 (13.73%) Firewall
5 6 (11.76%) MRTG
5 6 (11.76%) WAN
5 6 (11.76%) Wireshark
6 5 (9.80%) LAN
7 4 (7.84%) Fibre Channel
7 4 (7.84%) iSCSI
7 4 (7.84%) LDAP
7 4 (7.84%) SAN
8 3 (5.88%) Cisco ASA
8 3 (5.88%) Kerberos
8 3 (5.88%) Network Security
9 2 (3.92%) DHCP
9 2 (3.92%) NetScaler
9 2 (3.92%) tcpdump
9 2 (3.92%) VoIP
9 2 (3.92%) VPN
Database & Business Intelligence
1 13 (25.49%) MySQL
2 9 (17.65%) Apache Cassandra
2 9 (17.65%) NoSQL
3 6 (11.76%) DB2
3 6 (11.76%) Oracle Database
3 6 (11.76%) PostgreSQL
4 4 (7.84%) Amazon RDS
4 4 (7.84%) Hadoop
5 1 (1.96%) Big Data
5 1 (1.96%) Data Warehouse
5 1 (1.96%) MongoDB
5 1 (1.96%) SQL Server
Development Applications
1 18 (35.29%) Jenkins
2 17 (33.33%) Maven
3 12 (23.53%) Git (software)
4 6 (11.76%) Gradle
5 3 (5.88%) Atlassian Bamboo
5 3 (5.88%) TeamCity
6 2 (3.92%) Ant
6 2 (3.92%) GCC
6 2 (3.92%) Subversion
7 1 (1.96%) FishEye
7 1 (1.96%) JIRA
General
1 22 (43.14%) Finance
2 7 (13.73%) Banking
3 5 (9.80%) Marketing
3 5 (9.80%) Telecoms
4 2 (3.92%) Legal
5 1 (1.96%) Back Office
5 1 (1.96%) Games
Job Titles
1 16 (31.37%) Linux Engineer
2 12 (23.53%) DevOps Engineer
3 8 (15.69%) Administrator
3 8 (15.69%) Systems Administrator
4 7 (13.73%) Analyst
4 7 (13.73%) Linux DevOps Engineer
4 7 (13.73%) Linux/Unix DevOps
4 7 (13.73%) Support Analyst
5 6 (11.76%) AWS DevOps
5 6 (11.76%) AWS Engineer
5 6 (11.76%) Operations Engineer
6 5 (9.80%) Cloud Engineer
6 5 (9.80%) Developer
6 5 (9.80%) Linux Systems Engineer
7 4 (7.84%) Java Developer
7 4 (7.84%) Production Support Analyst
8 3 (5.88%) Hadoop Engineer
8 3 (5.88%) Ruby Engineer
8 3 (5.88%) Senior Windows Engineer
8 3 (5.88%) Windows Engineer
Libraries, Frameworks & Software Standards
1 6 (11.76%) LAMP
1 6 (11.76%) REST
1 6 (11.76%) SOAP
2 3 (5.88%) FIX Protocol
2 3 (5.88%) Sensu
3 2 (3.92%) Boost C++ Libraries
3 2 (3.92%) ELK Stack
4 1 (1.96%) .NET
4 1 (1.96%) CSS
4 1 (1.96%) GWT
4 1 (1.96%) HTML
4 1 (1.96%) HTML5
Miscellaneous
1 6 (11.76%) Wiki
2 4 (7.84%) Fintech
3 3 (5.88%) Computer Science
3 3 (5.88%) Data Centre
3 3 (5.88%) Hedge funds
4 2 (3.92%) HP StoreVirtual
4 2 (3.92%) Hybrid Cloud
4 2 (3.92%) Management Information System
4 2 (3.92%) PKI
5 1 (1.96%) Visualisation
Operating Systems
1 51 (100.00%) Linux
2 24 (47.06%) Red Hat Enterprise Linux
3 17 (33.33%) Unix
4 16 (31.37%) Windows
5 10 (19.61%) Ubuntu
6 7 (13.73%) Debian
7 6 (11.76%) FreeBSD
7 6 (11.76%) Windows Server
7 6 (11.76%) Windows Server 2008
7 6 (11.76%) Windows Server 2012
8 2 (3.92%) Oracle Linux
9 1 (1.96%) Mac OS X
9 1 (1.96%) Windows Server 2003
Processes & Methodologies
1 26 (50.98%) Configuration Management
2 17 (33.33%) DevOps
3 11 (21.57%) Agile Software Development
3 11 (21.57%) Continuous Integration
4 9 (17.65%) Scrum
5 7 (13.73%) Analytics
5 7 (13.73%) Load Balancing
6 6 (11.76%) E-Commerce
6 6 (11.76%) Kanban
6 6 (11.76%) Open Source
7 4 (7.84%) Build Automation
7 4 (7.84%) Data Ingestion
7 4 (7.84%) SDLC
7 4 (7.84%) Server Virtualisation
7 4 (7.84%) Virtual Environments
8 3 (5.88%) Mentoring
8 3 (5.88%) Network Management
8 3 (5.88%) Service Management
9 2 (3.92%) Change Management
9 2 (3.92%) Service Delivery
Programming Languages
1 21 (41.18%) Bash Shell
2 20 (39.22%) Java
3 18 (35.29%) Python
4 16 (31.37%) Ruby
5 13 (25.49%) SQL
6 12 (23.53%) Perl
6 12 (23.53%) PHP
7 6 (11.76%) C
7 6 (11.76%) JavaScript
7 6 (11.76%) PL/SQL
7 6 (11.76%) PowerShell
8 4 (7.84%) AWK
9 3 (5.88%) C++
10 2 (3.92%) Shell Script
11 1 (1.96%) PHP 5
11 1 (1.96%) T-SQL
Qualifications
1 4 (7.84%) MCITP
1 4 (7.84%) Microsoft Certification
1 4 (7.84%) VMware Certified Professional (VCP)
2 3 (5.88%) AWS Certification
3 1 (1.96%) CCNP
3 1 (1.96%) Cisco Certification
3 1 (1.96%) RHCE
Quality Assurance & Compliance
1 4 (7.84%) PCI DSS
2 1 (1.96%) QA
System Software
1 14 (27.45%) VMware Infrastructure
2 10 (19.61%) Active Directory
2 10 (19.61%) Docker
3 7 (13.73%) VMware ESXi
4 6 (11.76%) KVM
4 6 (11.76%) oVirt
4 6 (11.76%) Postfix
4 6 (11.76%) Xen
5 4 (7.84%) Corosync
6 2 (3.92%) NFS
6 2 (3.92%) Virtual Machines
7 1 (1.96%) Samba
Systems Management
1 26 (50.98%) Puppet
2 14 (27.45%) Opscode Chef
3 12 (23.53%) Nagios
4 10 (19.61%) Ansible
5 6 (11.76%) Munin
6 4 (7.84%) Cacti
6 4 (7.84%) HAProxy
6 4 (7.84%) Pacemaker
6 4 (7.84%) Red Hat Spacewalk
7 3 (5.88%) Graphite
7 3 (5.88%) SELinux
8 2 (3.92%) logstash
9 1 (1.96%) Oracle ZFS
9 1 (1.96%) SCOM
9 1 (1.96%) ZABBIX
Vendors
1 31 (60.78%) Red Hat
2 16 (31.37%) VMware
3 9 (17.65%) Oracle
4 7 (13.73%) Cisco
4 7 (13.73%) IBM
4 7 (13.73%) Microsoft
5 5 (9.80%) Splunk
6 4 (7.84%) Google
7 3 (5.88%) Citrix
7 3 (5.88%) Facebook
8 2 (3.92%) 3PAR
8 2 (3.92%) HP
8 2 (3.92%) LANDesk
8 2 (3.92%) NetApp
8 2 (3.92%) SolarWinds
9 1 (1.96%) Atlassian
9 1 (1.96%) CODA
9 1 (1.96%) Cognos
9 1 (1.96%) Percona
City, London
Client Server
Salary: £70k to £75k + bonus + benefits
Posted: 4 days ago
City, London
ANSON MCCADE
Salary: £35,000 - £50,000 (+ top tier package and benefits!!!)
Posted: 2 days ago
City, London
Harrington Starr
Salary: £70000 - £90000 per annum
Posted: 6 days ago