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 24 September 2016 with a comparison to the same period over the previous 2 years.

3 months to
24 Sep 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 231 246 265
Rank change year-on-year
+15 +19
Permanent jobs citing CentOS 16 47 64
As % of all permanent IT jobs located in the City of London 0.27% 0.54% 0.56%
As % of the Operating Systems category 1.10% 2.05% 2.06%
Number of salaries quoted 16 43 64
Median salary £52,500 £55,000 £45,000
Median salary % change year-on-year
-4.54% +22.22%
90% offered a salary of more than £43,000 £37,687 £40,000
10% offered a salary of more than £73,750 £70,000 £59,250
UK excluding London median salary £45,000 £42,500 £41,500
% change year-on-year
+5.88% +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
1448 2294 3113
As % of all permanent IT jobs located in the City of London 24.35% 26.18% 27.23%
Number of salaries quoted 1309 1971 2736
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 £27,500 £28,500
10% offered a salary of more than £80,000 £71,800 £75,000
UK excluding London median salary £37,500 £37,500 £36,000
% change year-on-year
- +4.16%

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 24 September 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 24 September 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 41 (100.00%) Linux
2 24 (58.54%) Red Hat
3 20 (48.78%) Red Hat Enterprise Linux
3 20 (48.78%) Puppet
4 18 (43.90%) Java
4 18 (43.90%) Finance
5 17 (41.46%) Maven
5 17 (41.46%) Configuration Management
6 16 (39.02%) DevOps
7 15 (36.59%) Python
8 14 (34.15%) Jenkins
8 14 (34.15%) Bash Shell
9 13 (31.71%) Unix
9 13 (31.71%) SQL
10 12 (29.27%) Ruby
10 12 (29.27%) Opscode Chef
11 10 (24.39%) Docker
11 10 (24.39%) Amazon AWS
11 10 (24.39%) Windows
12 9 (21.95%) MySQL
12 9 (21.95%) TCP/IP
12 9 (21.95%) Ubuntu
12 9 (21.95%) Continuous Integration
12 9 (21.95%) VMware
12 9 (21.95%) Agile Software Development
12 9 (21.95%) Git (software)
12 9 (21.95%) Apache Cassandra
12 9 (21.95%) NoSQL
12 9 (21.95%) Ansible
13 8 (19.51%) Scrum

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 7 (17.07%) Apache
2 6 (14.63%) OpenStack
3 5 (12.20%) Apache Spark
4 2 (4.88%) Tomcat
5 1 (2.44%) Confluence
5 1 (2.44%) IIS
5 1 (2.44%) JBoss
5 1 (2.44%) SharePoint
5 1 (2.44%) WebLogic
Business Applications
1 1 (2.44%) CODA-Financials
Cloud Services
1 10 (24.39%) Amazon AWS
2 3 (7.32%) AWS CloudFormation
2 3 (7.32%) IaaS
2 3 (7.32%) Microsoft Azure
2 3 (7.32%) PaaS
3 1 (2.44%) Amazon CloudWatch
3 1 (2.44%) Amazon EC2
3 1 (2.44%) Amazon S3
3 1 (2.44%) Amazon SQS
3 1 (2.44%) SaaS
3 1 (2.44%) SuccessFactors
Communications & Networking
1 9 (21.95%) TCP/IP
2 6 (14.63%) DNS
2 6 (14.63%) Internet
3 5 (12.20%) Wireshark
4 4 (9.76%) Firewall
4 4 (9.76%) iSCSI
5 3 (7.32%) Cisco ASA
5 3 (7.32%) Fibre Channel
5 3 (7.32%) Kerberos
5 3 (7.32%) LDAP
5 3 (7.32%) MRTG
5 3 (7.32%) Network Security
5 3 (7.32%) SAN
5 3 (7.32%) WAN
6 2 (4.88%) DHCP
6 2 (4.88%) LAN
6 2 (4.88%) VoIP
6 2 (4.88%) VPN
7 1 (2.44%) IPv4
7 1 (2.44%) IPv6
Database & Business Intelligence
1 9 (21.95%) Apache Cassandra
1 9 (21.95%) MySQL
1 9 (21.95%) NoSQL
2 5 (12.20%) DB2
2 5 (12.20%) Oracle Database
2 5 (12.20%) PostgreSQL
3 4 (9.76%) Hadoop
4 2 (4.88%) Amazon RDS
4 2 (4.88%) MongoDB
5 1 (2.44%) Big Data
5 1 (2.44%) Data Warehouse
5 1 (2.44%) SQL Server
Development Applications
1 17 (41.46%) Maven
2 14 (34.15%) Jenkins
3 9 (21.95%) Git (software)
4 5 (12.20%) Gradle
5 1 (2.44%) Ant
5 1 (2.44%) Atlassian Bamboo
5 1 (2.44%) FishEye
5 1 (2.44%) GCC
5 1 (2.44%) JIRA
5 1 (2.44%) Subversion
5 1 (2.44%) TeamCity
General
1 18 (43.90%) Finance
2 5 (12.20%) Banking
3 2 (4.88%) Legal
3 2 (4.88%) Marketing
4 1 (2.44%) Back Office
4 1 (2.44%) Games
4 1 (2.44%) Telecoms
Job Titles
1 11 (26.83%) DevOps Engineer
2 10 (24.39%) Linux Engineer
3 7 (17.07%) Analyst
3 7 (17.07%) Support Analyst
4 6 (14.63%) AWS DevOps
4 6 (14.63%) AWS Engineer
4 6 (14.63%) Linux DevOps Engineer
4 6 (14.63%) Linux/Unix DevOps
4 6 (14.63%) Operations Engineer
5 5 (12.20%) Administrator
5 5 (12.20%) Developer
5 5 (12.20%) Systems Administrator
6 4 (9.76%) Java Developer
6 4 (9.76%) Production Support Analyst
7 3 (7.32%) Cloud Engineer
7 3 (7.32%) Hadoop Engineer
7 3 (7.32%) Lead DevOps
7 3 (7.32%) Lead DevOps Engineer
7 3 (7.32%) Linux Systems Engineer
7 3 (7.32%) Ruby Engineer
Libraries, Frameworks & Software Standards
1 5 (12.20%) REST
1 5 (12.20%) SOAP
2 3 (7.32%) Boost C++ Libraries
2 3 (7.32%) LAMP
2 3 (7.32%) Sensu
3 2 (4.88%) FIX Protocol
4 1 (2.44%) .NET
4 1 (2.44%) CSS
4 1 (2.44%) GWT
4 1 (2.44%) HTML
4 1 (2.44%) HTML5
Miscellaneous
1 4 (9.76%) Fintech
2 3 (7.32%) Computer Science
2 3 (7.32%) Data Centre
2 3 (7.32%) Hedge funds
2 3 (7.32%) Wiki
3 2 (4.88%) Hybrid Cloud
4 1 (2.44%) HP StoreVirtual
4 1 (2.44%) PKI
4 1 (2.44%) Visualisation
Operating Systems
1 41 (100.00%) Linux
2 20 (48.78%) Red Hat Enterprise Linux
3 13 (31.71%) Unix
4 10 (24.39%) Windows
5 9 (21.95%) Ubuntu
6 5 (12.20%) Debian
7 3 (7.32%) FreeBSD
7 3 (7.32%) Windows Server
7 3 (7.32%) Windows Server 2008
7 3 (7.32%) Windows Server 2012
8 1 (2.44%) Mac OS X
8 1 (2.44%) Oracle Linux
8 1 (2.44%) Windows Server 2003
Processes & Methodologies
1 17 (41.46%) Configuration Management
2 16 (39.02%) DevOps
3 9 (21.95%) Agile Software Development
3 9 (21.95%) Continuous Integration
4 8 (19.51%) Scrum
5 7 (17.07%) Open Source
6 5 (12.20%) E-Commerce
6 5 (12.20%) Kanban
6 5 (12.20%) SDLC
7 4 (9.76%) Analytics
7 4 (9.76%) Build Automation
7 4 (9.76%) Data Ingestion
7 4 (9.76%) Load Balancing
7 4 (9.76%) Network Management
8 3 (7.32%) Continuous Delivery
9 2 (4.88%) Data Analysis
9 2 (4.88%) Mentoring
9 2 (4.88%) Performance Monitoring
9 2 (4.88%) SIEM
9 2 (4.88%) WAN Optimisation
Programming Languages
1 18 (43.90%) Java
2 15 (36.59%) Python
3 14 (34.15%) Bash Shell
4 13 (31.71%) SQL
5 12 (29.27%) Ruby
6 7 (17.07%) JavaScript
6 7 (17.07%) Perl
6 7 (17.07%) PHP
7 6 (14.63%) PL/SQL
8 5 (12.20%) AWK
9 4 (9.76%) C++
10 3 (7.32%) C
10 3 (7.32%) PowerShell
11 2 (4.88%) Shell Script
12 1 (2.44%) PHP 5
12 1 (2.44%) T-SQL
Qualifications
1 1 (2.44%) AWS Certification
Quality Assurance & Compliance
1 1 (2.44%) QA
System Software
1 10 (24.39%) Docker
2 7 (17.07%) VMware Infrastructure
3 4 (9.76%) Active Directory
4 3 (7.32%) KVM
4 3 (7.32%) oVirt
4 3 (7.32%) Postfix
4 3 (7.32%) Xen
5 2 (4.88%) VMware ESXi
6 1 (2.44%) NFS
6 1 (2.44%) Samba
6 1 (2.44%) XenServer
Systems Management
1 20 (48.78%) Puppet
2 12 (29.27%) Opscode Chef
3 9 (21.95%) Ansible
4 3 (7.32%) Graphite
4 3 (7.32%) Munin
4 3 (7.32%) Nagios
4 3 (7.32%) SELinux
5 2 (4.88%) logstash
6 1 (2.44%) Oracle ZFS
6 1 (2.44%) SCOM
6 1 (2.44%) ZABBIX
Vendors
1 24 (58.54%) Red Hat
2 9 (21.95%) VMware
3 8 (19.51%) Oracle
4 6 (14.63%) IBM
5 4 (9.76%) Google
5 4 (9.76%) Microsoft
6 3 (7.32%) Cisco
6 3 (7.32%) Citrix
6 3 (7.32%) Facebook
7 2 (4.88%) LANDesk
7 2 (4.88%) Splunk
8 1 (2.44%) 3PAR
8 1 (2.44%) Atlassian
8 1 (2.44%) CODA
8 1 (2.44%) Cognos
8 1 (2.44%) HP
8 1 (2.44%) NetApp
8 1 (2.44%) Percona
City, London
Harvey Nash plc
Salary: £30000 - £50000 per annum
Posted: Yesterday
City, London
ANSON MCCADE
Salary: £40,000 - £60,000
Posted: 2 days ago
City, London
ANSON MCCADE
Salary: £40,000 - £57,000
Posted: 2 days ago
City, London
EasyWebRecruitment.com
Salary: Competitive
Posted: 2 days ago
City of London
Computer Futures
Salary: £45000 - £55000 per annum + competitive benefits package
Posted: 5 days ago
City, London
Miller Maxwell Ltd
Salary: From £70,000 to £85,000 per annum Bonus and benefits package
Posted: 5 days ago
City of London
harringtonstarr
Salary: £70000 - £90000 per annum
Posted: 7 days ago
City of London
Nigel Frank International Ltd
Salary: £100000 - £110000 per annum
Posted: 16 days ago
City, London
CGI
Salary: £80000 - £86000 per annum + benefits
Posted: 17 days ago