Period
to 13 December 2018

The following table provides summary statistics for permanent job vacancies advertised in the East of England 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 13 December 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > East of England
6 months to
13 Dec 2018
Same period 2017 Same period 2016
Rank 265 301 310
Rank change year-on-year +36 +9 +52
Permanent jobs citing CentOS 62 57 47
As % of all permanent IT jobs advertised in the East of England 0.63% 0.47% 0.36%
As % of the Operating Systems category 2.40% 1.76% 1.50%
Number of salaries quoted 48 46 47
East of England median annual salary £42,500 £60,000 £48,500
Median salary % change year-on-year -29.17% +23.71% +7.78%
10th Percentile £33,750 £34,375 £31,150
90th Percentile £72,000 £76,250 £56,750
England median annual salary £55,000 £50,000 £50,000
% change year-on-year +10.00% - +5.26%

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 the East of England with a requirement for operating system skills.

All Operating Systems
East of England
Permanent vacancies with a requirement for operating system skills 2,580 3,239 3,137
As % of all permanent IT jobs advertised in the East of England 26.01% 26.65% 24.26%
Number of salaries quoted 1,863 2,625 2,601
East of England median annual salary £45,000 £45,000 £42,500
Median salary % change year-on-year - +5.88% +2.41%
10th Percentile £25,000 £23,250 £24,000
90th Percentile £70,000 £67,500 £65,000
England median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.56% - -

CentOS
Job Vacancy Trend in the East of England

Job postings citing CentOS as a percentage of all IT jobs advertised in the East of England.

Job vacancy trend for CentOS in the East of England

CentOS
Salary Trend in the East of England

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

Salary trend for CentOS in the East of England

CentOS
Salary Histogram in the East of England

The salary distribution of IT jobs citing CentOS in the East of England over the 6 months to 13 December 2018.

Salary histogram for CentOS in the East of England

CentOS
Job Locations in the East of England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the East of England region over the 6 months to 13 December 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Bedfordshire +20 21 £40,000 -14.44% 2
Cambridgeshire +35 18 £49,500 -1.00% 3
Suffolk - 11 £53,750 - 1
Hertfordshire -4 9 £65,000 +4.00% 1
Essex +10 2 £37,500 -11.76% 1
Norfolk +18 1 £48,000 +47.69%
CentOS
England

For the 6 months to 13 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 East of England region with a requirement for CentOS.

1 62 (100.00%) Linux
2 31 (50.00%) Red Hat
3 29 (46.77%) VMware
3 29 (46.77%) VMware Infrastructure
4 28 (45.16%) Ubuntu
5 27 (43.55%) Bash Shell
6 26 (41.94%) Windows
7 22 (35.48%) Red Hat Enterprise Linux
7 22 (35.48%) Docker
8 21 (33.87%) Python
8 21 (33.87%) Microsoft
9 19 (30.65%) Nagios
9 19 (30.65%) Configuration Management
9 19 (30.65%) Ansible
9 19 (30.65%) PowerShell
10 18 (29.03%) Puppet
11 17 (27.42%) Windows Server
12 15 (24.19%) DevOps
13 14 (22.58%) Kubernetes
13 14 (22.58%) High Availability
13 14 (22.58%) Agile Software Development
14 13 (20.97%) Firewall
15 12 (19.35%) Apache
15 12 (19.35%) nginx
15 12 (19.35%) Microsoft Azure
15 12 (19.35%) Open Source
15 12 (19.35%) vSphere
15 12 (19.35%) Task Automation
15 12 (19.35%) Infrastructure Engineering
16 11 (17.74%) Test Automation

CentOS
Co-occurring IT Skills in the East of England 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 12 (19.35%) Apache
1 12 (19.35%) nginx
2 7 (11.29%) OpenStack
3 5 (8.06%) SharePoint
4 4 (6.45%) IIS
4 4 (6.45%) WordPress
5 3 (4.84%) Skype for Business
6 2 (3.23%) Confluence
Applications
1 5 (8.06%) Microsoft Office
2 2 (3.23%) Microsoft Excel
2 2 (3.23%) Microsoft Project
2 2 (3.23%) MS Visio
3 1 (1.61%) Stata
Business Applications
1 2 (3.23%) Odoo
Cloud Services
1 12 (19.35%) Microsoft Azure
2 8 (12.90%) Office 365
3 7 (11.29%) Amazon AWS
4 3 (4.84%) SaaS
5 2 (3.23%) IaaS
5 2 (3.23%) PaaS
6 1 (1.61%) npm
6 1 (1.61%) NuGet
Communications & Networking
1 13 (20.97%) Firewall
2 10 (16.13%) DNS
2 10 (16.13%) VLAN
3 9 (14.52%) SAN
4 6 (9.68%) Network Security
5 5 (8.06%) Broadband
5 5 (8.06%) DHCP
5 5 (8.06%) SSL
6 4 (6.45%) IPv4
6 4 (6.45%) IPv6
6 4 (6.45%) VPN
7 3 (4.84%) Cisco Nexus
7 3 (4.84%) FabricPath
7 3 (4.84%) Skype
7 3 (4.84%) SNMP
7 3 (4.84%) TCP/IP
8 1 (1.61%) HTTP
8 1 (1.61%) InfiniBand
8 1 (1.61%) iSCSI
8 1 (1.61%) VRRP
Database & Business Intelligence
1 7 (11.29%) Big Data
2 5 (8.06%) MySQL
3 4 (6.45%) MariaDB
3 4 (6.45%) PostgreSQL
3 4 (6.45%) SQL Server
4 3 (4.84%) MongoDB
4 3 (4.84%) NoSQL
4 3 (4.84%) Redis
5 2 (3.23%) Oracle Database
6 1 (1.61%) RDBMS
6 1 (1.61%) Relational Database
Development Applications
1 11 (17.74%) Git (software)
2 9 (14.52%) Jenkins
3 5 (8.06%) Octopus Deploy
3 5 (8.06%) TeamCity
4 4 (6.45%) Atlassian Bamboo
4 4 (6.45%) Hudson
4 4 (6.45%) Selenium
5 3 (4.84%) Subversion
5 3 (4.84%) Vagrant
6 2 (3.23%) JIRA
7 1 (1.61%) Team Foundation Server
General
1 6 (9.68%) Finance
2 1 (1.61%) Automotive
2 1 (1.61%) Electronics
2 1 (1.61%) Manufacturing
2 1 (1.61%) Marketing
2 1 (1.61%) Retail
Job Titles
1 19 (30.65%) Administrator
2 17 (27.42%) Linux Administrator
3 16 (25.81%) Systems Administrator
4 15 (24.19%) Linux Engineer
5 14 (22.58%) Linux Systems Administrator
6 10 (16.13%) DevOps Engineer
6 10 (16.13%) Infrastructure Engineer
6 10 (16.13%) Linux/Unix DevOps
7 8 (12.90%) Windows Administrator
8 7 (11.29%) Linux DevOps Engineer
9 6 (9.68%) Windows Systems Administrator
10 5 (8.06%) DevOps Administrator
10 5 (8.06%) Linux DevOps Administrator
10 5 (8.06%) Linux Systems Engineer
10 5 (8.06%) Platform Engineer
10 5 (8.06%) Systems Engineer
10 5 (8.06%) Technical Leader
11 4 (6.45%) Analyst
11 4 (6.45%) DevOps Systems Engineer
11 4 (6.45%) IT Systems Administrator
Libraries, Frameworks & Software Standards
1 10 (16.13%) Elastic Stack
2 9 (14.52%) CSS
2 9 (14.52%) LAMP
3 6 (9.68%) HTML
4 4 (6.45%) Web Services
5 3 (4.84%) LAPP Stack
5 3 (4.84%) Node.js
6 2 (3.23%) Kohana
6 2 (3.23%) LDAP
6 2 (3.23%) LEMP Stack
6 2 (3.23%) REST
6 2 (3.23%) Symfony
7 1 (1.61%) Hibernate
7 1 (1.61%) HTML5
7 1 (1.61%) JSP
7 1 (1.61%) OAuth
7 1 (1.61%) OpenID
7 1 (1.61%) Ruby on Rails
7 1 (1.61%) SAML
7 1 (1.61%) Spring
Miscellaneous
1 10 (16.13%) Analytical Skills
2 5 (8.06%) Enterprise Storage
2 5 (8.06%) PKI
3 4 (6.45%) Data Centre
3 4 (6.45%) LPAR
4 3 (4.84%) Hybrid Cloud
5 2 (3.23%) Cybercrime
5 2 (3.23%) Self-Motivation
5 2 (3.23%) Smartphone
6 1 (1.61%) Replication
Operating Systems
1 62 (100.00%) Linux
2 28 (45.16%) Ubuntu
3 26 (41.94%) Windows
4 22 (35.48%) Red Hat Enterprise Linux
5 17 (27.42%) Windows Server
6 11 (17.74%) Fedora
7 8 (12.90%) Debian
8 5 (8.06%) Windows 10
8 5 (8.06%) Windows Server 2012
9 4 (6.45%) AIX
9 4 (6.45%) SUSE
9 4 (6.45%) Unix
10 3 (4.84%) Windows 8
10 3 (4.84%) Windows Server 2003
11 2 (3.23%) Mac OS
11 2 (3.23%) Mac OS X
11 2 (3.23%) Windows 7
Processes & Methodologies
1 19 (30.65%) Configuration Management
2 15 (24.19%) DevOps
3 14 (22.58%) Agile Software Development
3 14 (22.58%) High Availability
4 12 (19.35%) Infrastructure Engineering
4 12 (19.35%) Open Source
4 12 (19.35%) Task Automation
5 11 (17.74%) Test Automation
6 9 (14.52%) Service Delivery
7 8 (12.90%) Disaster Recovery
7 8 (12.90%) Load Balancing
7 8 (12.90%) Service Management
8 7 (11.29%) ITIL
8 7 (11.29%) V-Model
8 7 (11.29%) Waterfall
9 6 (9.68%) Change Control
9 6 (9.68%) Decision-Making
9 6 (9.68%) Server Virtualisation
9 6 (9.68%) Web Development
10 5 (8.06%) Network Virtualisation
Programming Languages
1 27 (43.55%) Bash Shell
2 21 (33.87%) Python
3 19 (30.65%) PowerShell
4 9 (14.52%) C
5 8 (12.90%) JavaScript
5 8 (12.90%) Shell Script
6 6 (9.68%) PHP
7 5 (8.06%) SQL
8 4 (6.45%) Perl
9 3 (4.84%) VBScript
10 1 (1.61%) C#
10 1 (1.61%) Java
10 1 (1.61%) MATLAB
10 1 (1.61%) PHP 5
10 1 (1.61%) PHP 7
10 1 (1.61%) R
10 1 (1.61%) Ruby
Qualifications
1 11 (17.74%) Cisco Certification
1 11 (17.74%) DV Cleared
1 11 (17.74%) Security Cleared
2 9 (14.52%) CCNA
3 5 (8.06%) CISSP
3 5 (8.06%) CompTIA Security+
3 5 (8.06%) GIAC
3 5 (8.06%) Linux+ Certification
3 5 (8.06%) MCSE
3 5 (8.06%) Microsoft Certification
3 5 (8.06%) Network+ Certification
3 5 (8.06%) SANS
3 5 (8.06%) SSCP
4 4 (6.45%) LPIC
5 3 (4.84%) Degree
6 2 (3.23%) Computer Science Degree
6 2 (3.23%) MCP
Quality Assurance & Compliance
1 6 (9.68%) ISO/IEC 27001
2 5 (8.06%) PCI DSS
3 3 (4.84%) GDPR
3 3 (4.84%) SLA
4 2 (3.23%) Sarbanes-Oxley
System Software
1 29 (46.77%) VMware Infrastructure
2 22 (35.48%) Docker
3 12 (19.35%) vSphere
4 10 (16.13%) Active Directory
4 10 (16.13%) Virtual Machines
4 10 (16.13%) VMware ESXi
5 8 (12.90%) NFS
5 8 (12.90%) Samba
6 7 (11.29%) VirtualBox
6 7 (11.29%) Xen
7 5 (8.06%) VMware NSX
8 4 (6.45%) PowerHA
9 3 (4.84%) iptables
10 2 (3.23%) LXC
11 1 (1.61%) GPFS
11 1 (1.61%) Shibboleth
Systems Management
1 19 (30.65%) Ansible
1 19 (30.65%) Nagios
2 18 (29.03%) Puppet
3 14 (22.58%) Kubernetes
4 10 (16.13%) HAProxy
5 9 (14.52%) Docker Swarm
5 9 (14.52%) vCenter Server
5 9 (14.52%) ZABBIX
6 7 (11.29%) OpenNMS
6 7 (11.29%) Prometheus
7 6 (9.68%) Opscode Chef
8 5 (8.06%) Terraform
8 5 (8.06%) Tivoli Storage Manager
8 5 (8.06%) vRealize
8 5 (8.06%) vRealize Orchestrator
8 5 (8.06%) yum
9 4 (6.45%) EMC NetWorker
9 4 (6.45%) Grafana
9 4 (6.45%) Icinga
10 3 (4.84%) SCOrch
Vendors
1 31 (50.00%) Red Hat
2 29 (46.77%) VMware
3 21 (33.87%) Microsoft
4 10 (16.13%) SolarWinds
5 9 (14.52%) EMC
6 8 (12.90%) NetApp
7 7 (11.29%) Cloudera
7 7 (11.29%) Hortonworks
8 6 (9.68%) Cisco
9 5 (8.06%) BT
9 5 (8.06%) Dell
10 3 (4.84%) CommVault
10 3 (4.84%) HP
11 2 (3.23%) Bomgar
11 2 (3.23%) EXTOL
11 2 (3.23%) Oracle
11 2 (3.23%) Snow
12 1 (1.61%) Fujitsu
12 1 (1.61%) IBM
12 1 (1.61%) NVIDIA