Period
to 23 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Reading 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 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
Berkshire > Reading
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 75 150 99
Rank change year-on-year +75 -51 +85
Permanent jobs citing CentOS 80 48 125
As % of all permanent IT jobs advertised in Reading 3.35% 1.37% 2.71%
As % of the Operating Systems category 10.58% 4.21% 9.14%
Number of salaries quoted 73 47 132
Reading median annual salary £45,000 £52,500 £42,000
Median salary % change year-on-year -14.29% +25.00% +12.00%
10th Percentile £26,300 £36,500 £21,500
90th Percentile £59,750 £68,750 £54,875
Berkshire median annual salary £45,000 £50,000 £42,500
% change year-on-year -10.00% +17.65% -10.53%

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 Reading with a requirement for operating system skills.

All Operating Systems
Reading
Permanent vacancies with a requirement for operating system skills 756 1140 1367
As % of all permanent IT jobs advertised in Reading 31.66% 32.65% 29.63%
Number of salaries quoted 617 917 1148
Reading median annual salary £45,000 £49,000 £45,000
Median salary % change year-on-year -8.16% +8.89% +18.42%
10th Percentile £23,000 £26,250 £24,500
90th Percentile £70,000 £70,000 £65,000
Berkshire median annual salary £45,000 £47,500 £45,000
% change year-on-year -5.26% +5.56% +12.50%

CentOS
Job Vacancy Trend in Reading

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

Job vacancy trend for CentOS in Reading

CentOS
Salary Trend in Reading

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

Salary trend for CentOS in Reading

CentOS
Salary Histogram in Reading

The salary distribution of IT jobs citing CentOS in Reading over the 6 months to 23 November 2017.

Salary histogram for CentOS in Reading

For the 6 months to 23 November 2017, 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 Reading region with a requirement for CentOS.

1 80 (100.00%) Linux
2 62 (77.50%) Python
3 57 (71.25%) Red Hat
4 51 (63.75%) Bash Shell
5 46 (57.50%) Puppet
6 42 (52.50%) Opscode Chef
6 42 (52.50%) Ubuntu
7 39 (48.75%) DevOps
7 39 (48.75%) Windows
7 39 (48.75%) Perl
8 36 (45.00%) Amazon AWS
9 28 (35.00%) Ansible
9 28 (35.00%) SaaS
9 28 (35.00%) Red Hat Enterprise Linux
10 26 (32.50%) Docker
11 24 (30.00%) Debian
12 23 (28.75%) Unix
12 23 (28.75%) Terraform
13 21 (26.25%) AWS Certification
14 20 (25.00%) Git (software)
14 20 (25.00%) Migration
15 19 (23.75%) ServiceNow
16 17 (21.25%) Agile Software Development
16 17 (21.25%) DHCP
16 17 (21.25%) SQL
16 17 (21.25%) MySQL
16 17 (21.25%) DNS
17 16 (20.00%) VMware
17 16 (20.00%) Data Centre
18 15 (18.75%) Fintech

CentOS
Co-occurring IT Skills in Reading 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 10 (12.50%) OpenStack
2 9 (11.25%) Elasticsearch
3 6 (7.50%) Apache
4 4 (5.00%) Exchange Server 2013
4 4 (5.00%) IIS
5 3 (3.75%) Confluence
5 3 (3.75%) Exchange Server 2003
5 3 (3.75%) Exchange Server 2010
5 3 (3.75%) JBoss
5 3 (3.75%) MS Exchange
6 1 (1.25%) SharePoint
6 1 (1.25%) SharePoint 2010
6 1 (1.25%) Skype for Business
Applications
1 1 (1.25%) Microsoft Office
Cloud Services
1 36 (45.00%) Amazon AWS
2 28 (35.00%) SaaS
3 15 (18.75%) Microsoft Azure
4 8 (10.00%) GitHub
5 7 (8.75%) Amazon EC2
6 4 (5.00%) AWS CloudFormation
7 3 (3.75%) Amazon S3
8 1 (1.25%) IaaS
8 1 (1.25%) Office 365
Communications & Networking
1 17 (21.25%) DHCP
1 17 (21.25%) DNS
2 15 (18.75%) TCP/IP
3 9 (11.25%) Firewall
4 7 (8.75%) SAN
5 6 (7.50%) BGP
5 6 (7.50%) Internet
5 6 (7.50%) OSPF
6 4 (5.00%) EIGRP
6 4 (5.00%) LAN
6 4 (5.00%) MPLS
6 4 (5.00%) RIP
6 4 (5.00%) WAN
7 3 (3.75%) BIG-IP
7 3 (3.75%) Cisco ASA
7 3 (3.75%) NetScaler
7 3 (3.75%) VPN
7 3 (3.75%) Wi-Fi
7 3 (3.75%) Wireshark
8 2 (2.50%) Intranet
Database & Business Intelligence
1 17 (21.25%) MySQL
2 14 (17.50%) Redis
3 13 (16.25%) MongoDB
4 11 (13.75%) NoSQL
5 9 (11.25%) Hadoop
5 9 (11.25%) Neo4j
5 9 (11.25%) Pentaho
5 9 (11.25%) PostgreSQL
6 8 (10.00%) Big Data
7 2 (2.50%) InfluxDB
7 2 (2.50%) SQL Server
7 2 (2.50%) SQLite
8 1 (1.25%) SQL Server 2008
Development Applications
1 20 (25.00%) Git (software)
2 9 (11.25%) GitLab
2 9 (11.25%) Talend Open Studio
3 7 (8.75%) Vagrant
4 6 (7.50%) Jenkins
4 6 (7.50%) Subversion
5 4 (5.00%) Ant
5 4 (5.00%) Atlassian Bamboo
5 4 (5.00%) Maven
6 3 (3.75%) JIRA
6 3 (3.75%) TeamCity
General
1 14 (17.50%) Banking
2 8 (10.00%) Advertising
3 3 (3.75%) Back Office
4 2 (2.50%) Billing
5 1 (1.25%) Front Office
5 1 (1.25%) Marketing
Job Titles
1 34 (42.50%) DevOps Engineer
2 19 (23.75%) AWS Engineer
3 18 (22.50%) AWS DevOps
3 18 (22.50%) AWS DevOps Engineer
4 13 (16.25%) Systems Engineer
5 11 (13.75%) Developer
6 10 (12.50%) Linux/Unix DevOps
7 9 (11.25%) Cloud Engineer
8 8 (10.00%) Junior
8 8 (10.00%) Junior DevOps
8 8 (10.00%) Junior DevOps Engineer
9 7 (8.75%) Open Source Developer
9 7 (8.75%) Support Engineer
10 5 (6.25%) Administrator
10 5 (6.25%) Architect
10 5 (6.25%) Linux Engineer
10 5 (6.25%) Systems Administrator
10 5 (6.25%) Technical Engineer
10 5 (6.25%) Technical Support
10 5 (6.25%) Technical Support Engineer
Libraries, Frameworks & Software Standards
1 14 (17.50%) AngularJS
1 14 (17.50%) Node.js
2 9 (11.25%) ActiveMQ
2 9 (11.25%) Apache Camel
2 9 (11.25%) Apache CXF
2 9 (11.25%) D3.js
2 9 (11.25%) Drools
2 9 (11.25%) Elastic Stack
2 9 (11.25%) jBPM
3 7 (8.75%) HTML
4 6 (7.50%) Web Services
5 5 (6.25%) HTML5
5 5 (6.25%) Vue (Vue.js)
6 4 (5.00%) JSON
6 4 (5.00%) REST
7 3 (3.75%) Middleware
7 3 (3.75%) Spring
8 2 (2.50%) CSS
8 2 (2.50%) Laravel
8 2 (2.50%) XML
Miscellaneous
1 16 (20.00%) Data Centre
2 15 (18.75%) Fintech
3 10 (12.50%) Computer Science
4 9 (11.25%) Greenfield Project
5 5 (6.25%) Analytical Skills
6 4 (5.00%) Client/Server
6 4 (5.00%) Public Cloud
7 1 (1.25%) Private Cloud
7 1 (1.25%) Virtual Team
Operating Systems
1 80 (100.00%) Linux
2 42 (52.50%) Ubuntu
3 39 (48.75%) Windows
4 28 (35.00%) Red Hat Enterprise Linux
5 24 (30.00%) Debian
6 23 (28.75%) Unix
7 7 (8.75%) Windows Server 2012
8 5 (6.25%) Windows Server
9 4 (5.00%) Windows 10
9 4 (5.00%) Windows Server 2003
9 4 (5.00%) Windows Server 2008
10 3 (3.75%) Kali Linux
10 3 (3.75%) Windows 8
11 1 (1.25%) Fedora
11 1 (1.25%) Windows 7
Processes & Methodologies
1 39 (48.75%) DevOps
2 20 (25.00%) Migration
3 17 (21.25%) Agile Software Development
4 15 (18.75%) Open Source
4 15 (18.75%) TDD
5 13 (16.25%) BDD
5 13 (16.25%) Scrum
6 9 (11.25%) Configuration Management
6 9 (11.25%) Load Balancing
6 9 (11.25%) Open Source Development
7 8 (10.00%) Continuous Integration
7 8 (10.00%) Microservices
8 6 (7.50%) ITIL
9 5 (6.25%) Business Intelligence
9 5 (6.25%) Logistics
9 5 (6.25%) Test Automation
10 4 (5.00%) High Availability
10 4 (5.00%) Mathematics
10 4 (5.00%) Workflow
10 4 (5.00%) Workflow Management
Programming Languages
1 62 (77.50%) Python
2 51 (63.75%) Bash Shell
3 39 (48.75%) Perl
4 17 (21.25%) SQL
5 14 (17.50%) Java
6 11 (13.75%) Ruby
7 10 (12.50%) PHP
8 9 (11.25%) Jython
8 9 (11.25%) PowerShell
9 6 (7.50%) JavaScript
10 5 (6.25%) ES6
11 4 (5.00%) Scala
12 1 (1.25%) C
Qualifications
1 21 (26.25%) AWS Certification
2 7 (8.75%) Degree
3 5 (6.25%) HND
4 4 (5.00%) Computer Science Degree
4 4 (5.00%) Security Cleared
5 3 (3.75%) SC Cleared
6 1 (1.25%) CCNA
6 1 (1.25%) Cisco Certification
6 1 (1.25%) MCP
6 1 (1.25%) MCSE
6 1 (1.25%) Microsoft Certification
Quality Assurance & Compliance
1 6 (7.50%) SLA
System Software
1 26 (32.50%) Docker
2 14 (17.50%) Hyper-V
3 12 (15.00%) VMware Infrastructure
4 7 (8.75%) Active Directory
4 7 (8.75%) VMware ESXi
4 7 (8.75%) vSphere
5 5 (6.25%) Virtual Machines
6 2 (2.50%) KVM
6 2 (2.50%) Terminal Services
6 2 (2.50%) VirtualBox
7 1 (1.25%) vCloud
Systems Management
1 46 (57.50%) Puppet
2 42 (52.50%) Opscode Chef
3 28 (35.00%) Ansible
4 23 (28.75%) Terraform
5 10 (12.50%) Kubernetes
6 9 (11.25%) Salt
7 7 (8.75%) Nagios
8 5 (6.25%) logstash
8 5 (6.25%) ZABBIX
9 3 (3.75%) Backup Exec
9 3 (3.75%) McAfee ePO
9 3 (3.75%) Nessus
9 3 (3.75%) NetBackup
9 3 (3.75%) Nmap
9 3 (3.75%) SCCM
9 3 (3.75%) SCOM
10 2 (2.50%) Graphite
10 2 (2.50%) Riemann
11 1 (1.25%) cPanel
11 1 (1.25%) vCenter Server
Vendors
1 57 (71.25%) Red Hat
2 19 (23.75%) ServiceNow
3 16 (20.00%) VMware
4 15 (18.75%) Cisco
5 9 (11.25%) Rackspace
5 9 (11.25%) Talend
6 7 (8.75%) Citrix
6 7 (8.75%) Microsoft
7 5 (6.25%) Juniper
8 4 (5.00%) AppDynamics
8 4 (5.00%) Dell
8 4 (5.00%) F5
8 4 (5.00%) New Relic
9 3 (3.75%) Brocade
9 3 (3.75%) FireEye
9 3 (3.75%) Palo Alto
9 3 (3.75%) Qualys
9 3 (3.75%) SolarWinds
9 3 (3.75%) Splunk
9 3 (3.75%) Veeam