Period
to 23 September 2018

The following table provides summary statistics for permanent job vacancies advertised in Berkshire 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 23 September 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
South East > Berkshire
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 200 128 187
Rank change year-on-year -72 +59 +17
Permanent jobs citing CentOS 60 143 124
As % of all permanent IT jobs advertised in Berkshire 0.94% 2.29% 1.41%
As % of the Operating Systems category 3.66% 8.13% 4.90%
Number of salaries quoted 57 127 123
Berkshire median annual salary £52,500 £47,500 £54,000
Median salary % change year-on-year +10.53% -12.04% +27.06%
10th Percentile £36,000 £27,500 £36,250
90th Percentile £69,250 £68,750 £71,250
South East median annual salary £55,000 £46,250 £50,000
% change year-on-year +18.92% -7.50% +17.65%

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 Berkshire with a requirement for operating system skills.

All Operating Systems
Berkshire
Permanent vacancies with a requirement for operating system skills 1,639 1,759 2,531
As % of all permanent IT jobs advertised in Berkshire 25.57% 28.20% 28.73%
Number of salaries quoted 1,377 1,472 2,138
Berkshire median annual salary £45,000 £45,000 £47,500
Median salary % change year-on-year - -5.26% +5.56%
10th Percentile £26,000 £24,000 £27,500
90th Percentile £67,500 £67,500 £68,750
South East median annual salary £42,500 £41,000 £42,500
% change year-on-year +3.66% -3.53% +6.25%

CentOS
Job Vacancy Trend in Berkshire

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

Job vacancy trend for CentOS in Berkshire

CentOS
Salary Trend in Berkshire

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

Salary trend for CentOS in Berkshire

CentOS
Salary Histogram in Berkshire

The salary distribution of IT jobs citing CentOS in Berkshire over the 6 months to 23 September 2018.

Salary histogram for CentOS in Berkshire

CentOS
Job Locations in Berkshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the Berkshire region over the 6 months to 23 September 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
Reading -34 29 £52,500 +16.67% 5
Newbury -7 11 £40,000 +23.08% 5
Windsor -13 6 £60,000 +23.08%
Maidenhead -39 5 £58,750 -12.96%
Slough -30 3 £52,500 +5.00% 1
CentOS
South East

For the 6 months to 23 September 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 Berkshire region with a requirement for CentOS.

1 60 (100.00%) Linux
2 39 (65.00%) DevOps
3 32 (53.33%) Bash Shell
4 30 (50.00%) Python
5 28 (46.67%) Puppet
6 25 (41.67%) Red Hat
7 24 (40.00%) Amazon AWS
8 23 (38.33%) Red Hat Enterprise Linux
8 23 (38.33%) Ubuntu
9 21 (35.00%) Ansible
10 19 (31.67%) Configuration Management
11 16 (26.67%) Agile Software Development
12 15 (25.00%) Open Source
12 15 (25.00%) Linux Command Line
13 14 (23.33%) Git (software)
13 14 (23.33%) Elasticsearch
13 14 (23.33%) Apache
13 14 (23.33%) MySQL
14 13 (21.67%) Java
14 13 (21.67%) Nagios
15 12 (20.00%) JavaScript
15 12 (20.00%) VMware
15 12 (20.00%) Opscode Chef
15 12 (20.00%) Big Data
16 11 (18.33%) ZABBIX
16 11 (18.33%) Perl
16 11 (18.33%) Cisco
17 10 (16.67%) SQL
17 10 (16.67%) Unix
17 10 (16.67%) Windows

CentOS
Co-occurring IT Skills in Berkshire 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 14 (23.33%) Apache
1 14 (23.33%) Elasticsearch
2 9 (15.00%) Tomcat
3 5 (8.33%) JBoss
4 4 (6.67%) nginx
5 3 (5.00%) IIS
6 2 (3.33%) CMS
7 1 (1.67%) Confluence
7 1 (1.67%) Exchange Server 2003
7 1 (1.67%) Exchange Server 2010
7 1 (1.67%) Exchange Server 2013
7 1 (1.67%) MS Exchange
Cloud Services
1 24 (40.00%) Amazon AWS
2 7 (11.67%) Microsoft Azure
3 2 (3.33%) AWS CloudFormation
4 1 (1.67%) Amazon CloudWatch
4 1 (1.67%) Amazon S3
4 1 (1.67%) Datadog
4 1 (1.67%) DigitalOcean
4 1 (1.67%) Google Cloud Platform
Communications & Networking
1 8 (13.33%) SSH
1 8 (13.33%) TCP/IP
2 5 (8.33%) SAN
3 3 (5.00%) VPN
4 2 (3.33%) LAN
4 2 (3.33%) VoIP
4 2 (3.33%) WAN
5 1 (1.67%) BIG-IP
5 1 (1.67%) Cisco ASA
5 1 (1.67%) DHCP
5 1 (1.67%) DNS
5 1 (1.67%) Firewall
5 1 (1.67%) HTTP
5 1 (1.67%) NetScaler
5 1 (1.67%) Network Security
5 1 (1.67%) Sourcefire
5 1 (1.67%) Wi-Fi
5 1 (1.67%) Wireshark
Database & Business Intelligence
1 14 (23.33%) MySQL
2 12 (20.00%) Big Data
3 7 (11.67%) SQL Server
4 6 (10.00%) Hadoop
5 5 (8.33%) Apache Cassandra
5 5 (8.33%) NoSQL
6 3 (5.00%) PostgreSQL
7 2 (3.33%) HBase
8 1 (1.67%) MongoDB
Development Applications
1 14 (23.33%) Git (software)
2 9 (15.00%) Jenkins
3 3 (5.00%) Atlassian Bamboo
4 2 (3.33%) Cucumber
4 2 (3.33%) Selenium
4 2 (3.33%) Travis CI
4 2 (3.33%) Vagrant
4 2 (3.33%) WebDriver
5 1 (1.67%) JIRA
5 1 (1.67%) TeamCity
General
1 8 (13.33%) Finance
2 7 (11.67%) Marketing
2 7 (11.67%) Telecoms
3 5 (8.33%) Retail
4 4 (6.67%) Electronics
4 4 (6.67%) Manufacturing
5 3 (5.00%) Banking
Job Titles
1 19 (31.67%) DevOps Engineer
2 12 (20.00%) Linux Engineer
3 11 (18.33%) Systems Administrator
4 10 (16.67%) Administrator
4 10 (16.67%) Linux Systems Administrator
5 9 (15.00%) Developer
5 9 (15.00%) Linux Administrator
6 8 (13.33%) Open Source Developer
7 6 (10.00%) Analyst
7 6 (10.00%) Site Engineer
7 6 (10.00%) Site Reliability Engineer
8 5 (8.33%) Support Engineer
8 5 (8.33%) Systems Engineer
9 4 (6.67%) 2nd Line Engineer
9 4 (6.67%) 2nd Line Support
9 4 (6.67%) 2nd Line Support Engineer
9 4 (6.67%) Linux DevOps Engineer
9 4 (6.67%) Linux Support Engineer
9 4 (6.67%) Linux Systems Engineer
9 4 (6.67%) Linux/Unix DevOps
Libraries, Frameworks & Software Standards
1 9 (15.00%) Elastic Stack
2 6 (10.00%) LAMP
2 6 (10.00%) Middleware
3 4 (6.67%) RabbitMQ
3 4 (6.67%) RESTful
3 4 (6.67%) Web Services
4 2 (3.33%) LEMP Stack
5 1 (1.67%) Django
5 1 (1.67%) libvirt
5 1 (1.67%) REST
Miscellaneous
1 15 (25.00%) Linux Command Line
2 7 (11.67%) BBC
2 7 (11.67%) Management Information System
3 5 (8.33%) Data Centre
3 5 (8.33%) Private Cloud
4 4 (6.67%) Public Cloud
5 2 (3.33%) Replication
6 1 (1.67%) Analytical Skills
6 1 (1.67%) Computer Science
6 1 (1.67%) SCADA
Operating Systems
1 60 (100.00%) Linux
2 23 (38.33%) Red Hat Enterprise Linux
2 23 (38.33%) Ubuntu
3 10 (16.67%) Debian
3 10 (16.67%) Unix
3 10 (16.67%) Windows
4 3 (5.00%) DC/OS
4 3 (5.00%) Windows 10
4 3 (5.00%) Windows Server
5 2 (3.33%) Mac OS X
5 2 (3.33%) Windows Server 2008
6 1 (1.67%) Fedora
6 1 (1.67%) Kali Linux
6 1 (1.67%) Oracle Linux
6 1 (1.67%) Windows 8
6 1 (1.67%) Windows Server 2003
6 1 (1.67%) Windows Server 2012
Processes & Methodologies
1 39 (65.00%) DevOps
2 19 (31.67%) Configuration Management
3 16 (26.67%) Agile Software Development
4 15 (25.00%) Open Source
5 8 (13.33%) Migration
5 8 (13.33%) Open Source Development
5 8 (13.33%) Site Reliability Engineering
6 7 (11.67%) Deployment Automation
6 7 (11.67%) Programme Management
6 7 (11.67%) Task Automation
7 6 (10.00%) Continuous Integration
7 6 (10.00%) Infrastructure Engineering
8 5 (8.33%) Information Management
8 5 (8.33%) Information Security
8 5 (8.33%) Problem-Solving
8 5 (8.33%) Scrum
8 5 (8.33%) SIEM
8 5 (8.33%) Vulnerability Management
9 4 (6.67%) Business Intelligence
9 4 (6.67%) Service Delivery
Programming Languages
1 32 (53.33%) Bash Shell
2 30 (50.00%) Python
3 13 (21.67%) Java
4 12 (20.00%) JavaScript
5 11 (18.33%) Perl
6 10 (16.67%) SQL
7 4 (6.67%) PHP
8 3 (5.00%) Shell Script
9 1 (1.67%) C++
9 1 (1.67%) Go
9 1 (1.67%) PowerShell
9 1 (1.67%) Ruby
Qualifications
1 4 (6.67%) CISM
1 4 (6.67%) CISSP
1 4 (6.67%) Degree
1 4 (6.67%) SANS
1 4 (6.67%) Security Cleared
2 3 (5.00%) SC Cleared
3 1 (1.67%) AWS Certification
3 1 (1.67%) CCIE
3 1 (1.67%) CCIE Security
3 1 (1.67%) Cisco Certification
3 1 (1.67%) Master's Degree
Quality Assurance & Compliance
1 5 (8.33%) ISO/IEC 27001
2 2 (3.33%) QA
System Software
1 10 (16.67%) VMware Infrastructure
2 5 (8.33%) Docker
3 3 (5.00%) Active Directory
3 3 (5.00%) Hyper-V
3 3 (5.00%) Virtual Machines
4 2 (3.33%) Varnish
4 2 (3.33%) VirtualBox
5 1 (1.67%) KVM
5 1 (1.67%) VMware ESXi
Systems Management
1 28 (46.67%) Puppet
2 21 (35.00%) Ansible
3 13 (21.67%) Nagios
4 12 (20.00%) Opscode Chef
5 11 (18.33%) ZABBIX
6 8 (13.33%) Terraform
7 7 (11.67%) Kibana
8 4 (6.67%) Grafana
8 4 (6.67%) Icinga
8 4 (6.67%) Kubernetes
8 4 (6.67%) Rundeck
9 3 (5.00%) Docker Swarm
9 3 (5.00%) Host Intrusion Detection System
9 3 (5.00%) Xymon
10 2 (3.33%) cPanel
10 2 (3.33%) HAProxy
10 2 (3.33%) Plesk
11 1 (1.67%) Cacti
11 1 (1.67%) McAfee ePO
11 1 (1.67%) Salt
Vendors
1 25 (41.67%) Red Hat
2 12 (20.00%) VMware
3 11 (18.33%) Cisco
4 8 (13.33%) Google
5 5 (8.33%) Dell
6 4 (6.67%) PagerDuty
6 4 (6.67%) SAP
7 3 (5.00%) Oracle
8 2 (3.33%) Juniper
8 2 (3.33%) Splunk
9 1 (1.67%) CheckPoint
9 1 (1.67%) CyberArk
9 1 (1.67%) EMC
9 1 (1.67%) FireEye
9 1 (1.67%) McAfee
9 1 (1.67%) New Relic
9 1 (1.67%) Palo Alto
9 1 (1.67%) Rackspace
9 1 (1.67%) SaltStack
9 1 (1.67%) Sophos