Period
to 22 October 2018

The following table provides summary statistics for permanent job vacancies advertised in Cambridge with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 6 months to 22 October 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
Cambridgeshire > Cambridge
6 months to
22 Oct 2018
Same period 2017 Same period 2016
Rank 118 159 129
Rank change year-on-year +41 -30 +10
Permanent jobs citing CentOS 25 16 21
As % of all permanent IT jobs advertised in Cambridge 1.14% 0.59% 0.93%
As % of the Operating Systems category 3.41% 1.93% 2.58%
Number of salaries quoted 10 15 21
Cambridge median annual salary £52,500 £50,000 £45,000
Median salary % change year-on-year +5.00% +11.11% +5.88%
10th Percentile £43,875 £45,000 £32,500
90th Percentile £82,500 £75,000 £51,250
Cambridgeshire median annual salary £52,500 £50,000 £48,250
% change year-on-year +5.00% +3.63% +13.53%

CentOS is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Cambridge with a requirement for operating system skills.

All Operating Systems
Cambridge
Permanent vacancies with a requirement for operating system skills 733 828 815
As % of all permanent IT jobs advertised in Cambridge 33.35% 30.42% 36.00%
Number of salaries quoted 516 659 683
Cambridge median annual salary £50,000 £50,000 £43,500
Median salary % change year-on-year - +14.94% +2.35%
10th Percentile £27,750 £29,650 £26,250
90th Percentile £71,875 £67,500 £63,750
Cambridgeshire median annual salary £47,500 £47,500 £42,500
% change year-on-year - +11.76% -

CentOS
Job Vacancy Trend in Cambridge

Job postings citing CentOS as a percentage of all IT jobs advertised in Cambridge.

Job vacancy trend for CentOS in Cambridge

CentOS
Salary Trend in Cambridge

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS in Cambridge.

Salary trend for CentOS in Cambridge

CentOS
Salary Histogram in Cambridge

The salary distribution of IT jobs citing CentOS in Cambridge over the 6 months to 22 October 2018.

Salary histogram for CentOS in Cambridge

For the 6 months to 22 October 2018, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Cambridge region with a requirement for CentOS.

1 25 (100.00%) Linux
2 17 (68.00%) Python
3 16 (64.00%) Red Hat
4 15 (60.00%) Windows
5 14 (56.00%) Puppet
6 13 (52.00%) VMware Infrastructure
6 13 (52.00%) VMware
6 13 (52.00%) Docker
6 13 (52.00%) Windows Server
7 12 (48.00%) Ansible
7 12 (48.00%) Red Hat Enterprise Linux
7 12 (48.00%) Bash Shell
8 11 (44.00%) Git (software)
8 11 (44.00%) Ubuntu
8 11 (44.00%) Opscode Chef
9 10 (40.00%) DevOps
9 10 (40.00%) Virtual Machines
10 9 (36.00%) Microsoft
11 8 (32.00%) Debian
11 8 (32.00%) Cisco
11 8 (32.00%) SQL Server
11 8 (32.00%) DHCP
11 8 (32.00%) DNS
11 8 (32.00%) OpenStack
12 7 (28.00%) vSphere
12 7 (28.00%) SDLC
12 7 (28.00%) VLAN
12 7 (28.00%) SNMP
12 7 (28.00%) JavaScript
12 7 (28.00%) Web Services

CentOS
Co-occurring IT Skills in Cambridge 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 8 (32.00%) OpenStack
2 6 (24.00%) Confluence
2 6 (24.00%) WebLogic
2 6 (24.00%) WebSphere
3 2 (8.00%) Apache
3 2 (8.00%) WordPress
Applications
1 2 (8.00%) Microsoft Excel
1 2 (8.00%) Microsoft Office
1 2 (8.00%) Microsoft Project
1 2 (8.00%) MS Visio
Business Applications
1 6 (24.00%) Documaker
Cloud Services
1 6 (24.00%) Amazon AWS
1 6 (24.00%) GitHub
1 6 (24.00%) IaaS
2 5 (20.00%) Office 365
Communications & Networking
1 8 (32.00%) DHCP
1 8 (32.00%) DNS
2 7 (28.00%) Firewall
2 7 (28.00%) SNMP
2 7 (28.00%) VLAN
3 6 (24.00%) Cisco IOS
3 6 (24.00%) Cisco Nexus
3 6 (24.00%) FTP
3 6 (24.00%) HTTPS
3 6 (24.00%) ICMP
3 6 (24.00%) IMAP
3 6 (24.00%) IPsec
3 6 (24.00%) Network Security
3 6 (24.00%) OpenVPN
3 6 (24.00%) SAN
3 6 (24.00%) SSH
3 6 (24.00%) SSL
3 6 (24.00%) TCP/IP
3 6 (24.00%) Telnet
3 6 (24.00%) WPA2
Database & Business Intelligence
1 8 (32.00%) SQL Server
2 6 (24.00%) MongoDB
2 6 (24.00%) Oracle Database
3 3 (12.00%) MySQL
3 3 (12.00%) Relational Database
4 2 (8.00%) MariaDB
4 2 (8.00%) PostgreSQL
5 1 (4.00%) RDBMS
Development Applications
1 11 (44.00%) Git (software)
2 6 (24.00%) Gerrit
2 6 (24.00%) JIRA
2 6 (24.00%) Sonatype Nexus
3 4 (16.00%) Jenkins
4 2 (8.00%) Vagrant
5 1 (4.00%) Hudson
General
1 6 (24.00%) Finance
2 2 (8.00%) Marketing
3 1 (4.00%) Automotive
Job Titles
1 9 (36.00%) Systems Administrator
2 8 (32.00%) DevOps Engineer
2 8 (32.00%) Linux Systems Administrator
3 7 (28.00%) Administrator
4 6 (24.00%) Linux Administrator
4 6 (24.00%) Senior DevOps
4 6 (24.00%) Senior DevOps Engineer
4 6 (24.00%) Windows Administrator
4 6 (24.00%) Windows Systems Administrator
5 4 (16.00%) IT Administrator
5 4 (16.00%) IT Systems Administrator
6 3 (12.00%) IT Engineer
6 3 (12.00%) Linux Engineer
6 3 (12.00%) Senior Linux Administrator
6 3 (12.00%) Senior Linux Systems Administrator
6 3 (12.00%) Senior Systems Administrator
6 3 (12.00%) Senior Windows Administrator
6 3 (12.00%) Server Administrator
6 3 (12.00%) Software Engineer
6 3 (12.00%) Windows Server Administrator
Libraries, Frameworks & Software Standards
1 7 (28.00%) Web Services
2 6 (24.00%) Middleware
2 6 (24.00%) RESTful
2 6 (24.00%) SOAP
2 6 (24.00%) YAML
3 2 (8.00%) CSS
3 2 (8.00%) LAMP
3 2 (8.00%) LAPP Stack
3 2 (8.00%) LDAP
4 1 (4.00%) Hibernate
4 1 (4.00%) HTML
4 1 (4.00%) HTML5
4 1 (4.00%) JSP
4 1 (4.00%) OAuth
4 1 (4.00%) OpenID
4 1 (4.00%) Ruby on Rails
4 1 (4.00%) SAML
4 1 (4.00%) Spring
Miscellaneous
1 2 (8.00%) Algorithms
1 2 (8.00%) Analytical Skills
1 2 (8.00%) Data Centre
1 2 (8.00%) Self-Motivation
1 2 (8.00%) Smartphone
2 1 (4.00%) Computer Science
2 1 (4.00%) Replication
Operating Systems
1 25 (100.00%) Linux
2 15 (60.00%) Windows
3 13 (52.00%) Windows Server
4 12 (48.00%) Red Hat Enterprise Linux
5 11 (44.00%) Ubuntu
6 8 (32.00%) Debian
7 6 (24.00%) Android
7 6 (24.00%) Solaris
7 6 (24.00%) Windows Server 2008
7 6 (24.00%) Windows Server 2012
8 2 (8.00%) Fedora
8 2 (8.00%) Mac OS
8 2 (8.00%) Mac OS X
8 2 (8.00%) Windows 10
8 2 (8.00%) Windows 7
Processes & Methodologies
1 10 (40.00%) DevOps
2 7 (28.00%) SDLC
3 6 (24.00%) Application Performance Monitoring
3 6 (24.00%) Capacity Planning
3 6 (24.00%) Disaster Recovery
3 6 (24.00%) High Availability
3 6 (24.00%) Integration Testing
3 6 (24.00%) Network Monitoring
3 6 (24.00%) Performance Monitoring
3 6 (24.00%) Project Management
3 6 (24.00%) Release Management
3 6 (24.00%) Root Cause Analysis
3 6 (24.00%) Runbook
3 6 (24.00%) Server Virtualisation
4 5 (20.00%) Agile Software Development
5 4 (16.00%) Problem-Solving
6 3 (12.00%) Scrum
6 3 (12.00%) Server Monitoring
6 3 (12.00%) Software Engineering
6 3 (12.00%) TDD
Programming Languages
1 17 (68.00%) Python
2 12 (48.00%) Bash Shell
3 7 (28.00%) JavaScript
3 7 (28.00%) PHP
3 7 (28.00%) SQL
4 6 (24.00%) PowerShell
5 3 (12.00%) Perl
6 2 (8.00%) Shell Script
7 1 (4.00%) Java
7 1 (4.00%) Ruby
Qualifications
1 2 (8.00%) Cisco Certification
1 2 (8.00%) MCP
2 1 (4.00%) Degree
Quality Assurance & Compliance
1 2 (8.00%) SLA
System Software
1 13 (52.00%) Docker
1 13 (52.00%) VMware Infrastructure
2 10 (40.00%) Virtual Machines
3 7 (28.00%) vSphere
4 6 (24.00%) Samba
4 6 (24.00%) VirtualBox
5 2 (8.00%) Active Directory
6 1 (4.00%) Shibboleth
Systems Management
1 14 (56.00%) Puppet
2 12 (48.00%) Ansible
3 11 (44.00%) Opscode Chef
4 6 (24.00%) Nagios
4 6 (24.00%) Rancher
4 6 (24.00%) Sysdig
4 6 (24.00%) vRealize
5 2 (8.00%) Grafana
5 2 (8.00%) HAProxy
5 2 (8.00%) Icinga
5 2 (8.00%) Kubernetes
5 2 (8.00%) Munin
5 2 (8.00%) Salt
5 2 (8.00%) ZABBIX
Vendors
1 16 (64.00%) Red Hat
2 13 (52.00%) VMware
3 9 (36.00%) Microsoft
4 8 (32.00%) Cisco
5 6 (24.00%) AppDynamics
5 6 (24.00%) BMC
5 6 (24.00%) HP
5 6 (24.00%) IBM
5 6 (24.00%) Intel
5 6 (24.00%) New Relic
5 6 (24.00%) Oracle
5 6 (24.00%) ServiceNow
5 6 (24.00%) Splunk
5 6 (24.00%) WorldPay
6 2 (8.00%) Bomgar
6 2 (8.00%) Snow