Period
to 9 December 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 9 December 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
Cambridgeshire > Cambridge
6 months to
9 Dec 2018
Same period 2017 Same period 2016
Rank 116 169 129
Rank change year-on-year +53 -40 +18
Permanent jobs citing CentOS 18 14 20
As % of all permanent IT jobs advertised in Cambridge 0.91% 0.44% 0.87%
As % of the Operating Systems category 2.64% 1.44% 2.36%
Number of salaries quoted 9 12 20
Cambridge median annual salary £49,500 £50,000 £45,000
Median salary % change year-on-year -1.00% +11.11% +5.88%
10th Percentile £40,750 £45,000 £32,500
90th Percentile £82,500 £75,000 £51,650
Cambridgeshire median annual salary £49,500 £50,000 £49,500
% change year-on-year -1.00% +1.01% +16.47%

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 683 972 847
As % of all permanent IT jobs advertised in Cambridge 34.46% 30.80% 36.84%
Number of salaries quoted 492 735 700
Cambridge median annual salary £50,000 £50,000 £42,500
Median salary % change year-on-year - +17.65% -1.16%
10th Percentile £27,750 £29,100 £24,750
90th Percentile £73,625 £67,500 £62,500
Cambridgeshire median annual salary £50,000 £47,500 £42,500
% change year-on-year +5.26% +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 9 December 2018.

Salary histogram for CentOS in Cambridge

For the 6 months to 9 December 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 18 (100.00%) Linux
2 10 (55.56%) Red Hat
2 10 (55.56%) Virtual Machines
3 9 (50.00%) Microsoft
3 9 (50.00%) Windows
3 9 (50.00%) Python
3 9 (50.00%) Ubuntu
4 8 (44.44%) Debian
4 8 (44.44%) Puppet
5 7 (38.89%) Windows Server
5 7 (38.89%) VLAN
5 7 (38.89%) VMware Infrastructure
5 7 (38.89%) vSphere
5 7 (38.89%) VMware
5 7 (38.89%) Firewall
6 6 (33.33%) SAN
6 6 (33.33%) Network Security
6 6 (33.33%) Server Virtualisation
6 6 (33.33%) Docker
7 5 (27.78%) Problem-Solving
7 5 (27.78%) Red Hat Enterprise Linux
7 5 (27.78%) Git (software)
7 5 (27.78%) Bash Shell
7 5 (27.78%) Office 365
7 5 (27.78%) Agile Software Development
8 4 (22.22%) Fedora
8 4 (22.22%) PostgreSQL
8 4 (22.22%) SQL Server
8 4 (22.22%) CSS
8 4 (22.22%) IPv4

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 4 (22.22%) Apache
1 4 (22.22%) OpenStack
1 4 (22.22%) WordPress
Applications
1 2 (11.11%) Microsoft Excel
1 2 (11.11%) Microsoft Office
1 2 (11.11%) Microsoft Project
1 2 (11.11%) MS Visio
Business Applications
1 2 (11.11%) Odoo
Cloud Services
1 5 (27.78%) Office 365
Communications & Networking
1 7 (38.89%) Firewall
1 7 (38.89%) VLAN
2 6 (33.33%) Network Security
2 6 (33.33%) SAN
3 4 (22.22%) IPv4
3 4 (22.22%) IPv6
4 2 (11.11%) DHCP
4 2 (11.11%) DNS
5 1 (5.56%) iSCSI
5 1 (5.56%) NAS
5 1 (5.56%) SNMP
Database & Business Intelligence
1 4 (22.22%) MariaDB
1 4 (22.22%) PostgreSQL
1 4 (22.22%) SQL Server
2 3 (16.67%) MySQL
3 1 (5.56%) RDBMS
3 1 (5.56%) Relational Database
Development Applications
1 5 (27.78%) Git (software)
2 4 (22.22%) Jenkins
3 1 (5.56%) Hudson
General
1 1 (5.56%) Automotive
1 1 (5.56%) Electronics
1 1 (5.56%) Manufacturing
1 1 (5.56%) Marketing
Job Titles
1 11 (61.11%) Systems Administrator
2 9 (50.00%) Administrator
2 9 (50.00%) Linux Systems Administrator
3 7 (38.89%) Linux Administrator
4 6 (33.33%) Windows Administrator
4 6 (33.33%) Windows Systems Administrator
5 4 (22.22%) IT Administrator
5 4 (22.22%) IT Systems Administrator
6 3 (16.67%) IT Engineer
6 3 (16.67%) Linux Engineer
6 3 (16.67%) Senior IT Administrator
6 3 (16.67%) Senior Linux Administrator
6 3 (16.67%) Senior Linux Systems Administrator
6 3 (16.67%) Senior Systems Administrator
6 3 (16.67%) Senior Windows Administrator
6 3 (16.67%) Senior Windows Systems Administrator
6 3 (16.67%) Server Administrator
6 3 (16.67%) Windows Server Administrator
7 2 (11.11%) Deskside Support
7 2 (11.11%) Desktop Support
Libraries, Frameworks & Software Standards
1 4 (22.22%) CSS
2 3 (16.67%) LAMP
2 3 (16.67%) LAPP Stack
3 2 (11.11%) LDAP
4 1 (5.56%) Hibernate
4 1 (5.56%) HTML
4 1 (5.56%) HTML5
4 1 (5.56%) JSP
4 1 (5.56%) OAuth
4 1 (5.56%) OpenID
4 1 (5.56%) Ruby on Rails
4 1 (5.56%) SAML
4 1 (5.56%) Spring
4 1 (5.56%) Web Services
Miscellaneous
1 4 (22.22%) Data Centre
2 2 (11.11%) Analytical Skills
2 2 (11.11%) Self-Motivation
2 2 (11.11%) Smartphone
3 1 (5.56%) Replication
Operating Systems
1 18 (100.00%) Linux
2 9 (50.00%) Ubuntu
2 9 (50.00%) Windows
3 8 (44.44%) Debian
4 7 (38.89%) Windows Server
5 5 (27.78%) Red Hat Enterprise Linux
6 4 (22.22%) Fedora
7 2 (11.11%) Mac OS
7 2 (11.11%) Mac OS X
7 2 (11.11%) Windows 10
7 2 (11.11%) Windows 7
Processes & Methodologies
1 6 (33.33%) Server Virtualisation
2 5 (27.78%) Agile Software Development
2 5 (27.78%) Problem-Solving
3 4 (22.22%) Open Source
4 3 (16.67%) Configuration Management
4 3 (16.67%) DevOps
4 3 (16.67%) Logistics
4 3 (16.67%) Scrum
4 3 (16.67%) Server Monitoring
5 2 (11.11%) Change Management
5 2 (11.11%) CRM
5 2 (11.11%) ITIL
6 1 (5.56%) Collaborative Working
6 1 (5.56%) Computer Science
6 1 (5.56%) Infrastructure Monitoring
6 1 (5.56%) Load Balancing
6 1 (5.56%) SDLC
6 1 (5.56%) Software Engineering
6 1 (5.56%) TDD
6 1 (5.56%) Web Development
Programming Languages
1 9 (50.00%) Python
2 5 (27.78%) Bash Shell
3 4 (22.22%) Shell Script
4 2 (11.11%) Perl
5 1 (5.56%) Java
5 1 (5.56%) JavaScript
5 1 (5.56%) PHP
5 1 (5.56%) Ruby
5 1 (5.56%) SQL
Qualifications
1 2 (11.11%) Cisco Certification
1 2 (11.11%) MCP
2 1 (5.56%) Degree
Quality Assurance & Compliance
1 2 (11.11%) SLA
System Software
1 10 (55.56%) Virtual Machines
2 7 (38.89%) VMware Infrastructure
2 7 (38.89%) vSphere
3 6 (33.33%) Docker
4 2 (11.11%) Active Directory
5 1 (5.56%) Shibboleth
Systems Management
1 8 (44.44%) Puppet
2 4 (22.22%) Ansible
2 4 (22.22%) HAProxy
2 4 (22.22%) Icinga
2 4 (22.22%) Opscode Chef
3 1 (5.56%) Grafana
3 1 (5.56%) Kubernetes
3 1 (5.56%) Munin
3 1 (5.56%) Salt
3 1 (5.56%) ZABBIX
Vendors
1 10 (55.56%) Red Hat
2 9 (50.00%) Microsoft
3 7 (38.89%) VMware
4 2 (11.11%) Bomgar
4 2 (11.11%) Cisco
4 2 (11.11%) Snow