Period
to 20 November 2017

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 20 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > East of England
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 299 309 356
Rank change year-on-year +10 +47 -34
Permanent jobs citing CentOS 58 51 38
As % of all permanent IT jobs advertised in the East of England 0.48% 0.39% 0.25%
As % of the Operating Systems category 1.80% 1.61% 0.95%
Number of salaries quoted 46 51 38
East of England median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% +4.65%
10th Percentile £30,125 £31,250 £33,175
90th Percentile £76,250 £57,500 £57,500
England median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% +5.56%

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 3229 3158 3993
As % of all permanent IT jobs advertised in the East of England 26.78% 24.22% 26.01%
Number of salaries quoted 2651 2636 3264
East of England median annual salary £42,500 £42,500 £41,750
Median salary % change year-on-year - +1.80% +4.38%
10th Percentile £23,250 £24,000 £22,750
90th Percentile £66,250 £65,000 £58,750
England median annual salary £45,000 £45,000 £45,000

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 20 November 2017.

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 20 November 2017. 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
Hertfordshire +26 35 £60,000 +14.29% 2
Cambridgeshire -52 18 £50,000 +2.04%
Bedfordshire +28 2 £46,750 +16.88%
Norfolk - 2 £32,500 -
Essex +20 1 £35,000 - 2
CentOS
England

For the 6 months to 20 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 East of England region with a requirement for CentOS.

1 58 (100.00%) Linux
2 38 (65.52%) Amazon AWS
3 37 (63.79%) Ubuntu
4 36 (62.07%) Puppet
4 36 (62.07%) DevOps
5 35 (60.34%) Opscode Chef
5 35 (60.34%) VMware
6 34 (58.62%) Bash Shell
7 33 (56.90%) Python
8 30 (51.72%) Red Hat Enterprise Linux
8 30 (51.72%) Ansible
9 28 (48.28%) Red Hat
10 27 (46.55%) Windows
11 23 (39.66%) Docker
12 21 (36.21%) Data Centre
13 16 (27.59%) Kubernetes
14 15 (25.86%) ZABBIX
14 15 (25.86%) VMware Infrastructure
15 14 (24.14%) Jenkins
15 14 (24.14%) DNS
15 14 (24.14%) Perl
16 13 (22.41%) Active Directory
16 13 (22.41%) DHCP
16 13 (22.41%) Munin
16 13 (22.41%) Grafana
17 12 (20.69%) Microsoft Azure
17 12 (20.69%) Google
17 12 (20.69%) TCP/IP
17 12 (20.69%) Cisco
17 12 (20.69%) SMS

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 6 (10.34%) Apache
1 6 (10.34%) Skype for Business
2 4 (6.90%) Tomcat
3 2 (3.45%) Confluence
3 2 (3.45%) nginx
4 1 (1.72%) IIS
4 1 (1.72%) MS Exchange
Applications
1 6 (10.34%) Microsoft Office
Cloud Services
1 38 (65.52%) Amazon AWS
2 12 (20.69%) Microsoft Azure
3 9 (15.52%) AWS CloudFormation
3 9 (15.52%) Office 365
4 8 (13.79%) Amazon CloudWatch
5 6 (10.34%) Cloud Computing
5 6 (10.34%) IaaS
6 4 (6.90%) Route 53
6 4 (6.90%) Virtual Private Cloud
7 2 (3.45%) Amazon EC2
7 2 (3.45%) Amazon ElastiCache
7 2 (3.45%) Amazon S3
7 2 (3.45%) AWS Elastic Beanstalk
7 2 (3.45%) AWS Lambda
7 2 (3.45%) GitHub
7 2 (3.45%) Google Cloud Platform
7 2 (3.45%) PaaS
7 2 (3.45%) Serverless
Communications & Networking
1 14 (24.14%) DNS
2 13 (22.41%) DHCP
3 12 (20.69%) SMS
3 12 (20.69%) TCP/IP
4 9 (15.52%) Firewall
5 7 (12.07%) VPN
6 6 (10.34%) Network Security
6 6 (10.34%) Remote Desktop
6 6 (10.34%) SAN
6 6 (10.34%) Skype
7 5 (8.62%) VLAN
8 4 (6.90%) iSCSI
8 4 (6.90%) SMTP
9 3 (5.17%) VoIP
10 2 (3.45%) HTTP
10 2 (3.45%) IPv6
10 2 (3.45%) LAN
10 2 (3.45%) OSPF
10 2 (3.45%) SSH
10 2 (3.45%) WAN
Database & Business Intelligence
1 6 (10.34%) MySQL
2 2 (3.45%) Amazon RDS
2 2 (3.45%) DB2
2 2 (3.45%) Hazelcast
2 2 (3.45%) MongoDB
2 2 (3.45%) NoSQL
2 2 (3.45%) Oracle Database
2 2 (3.45%) SQL Server
Development Applications
1 14 (24.14%) Jenkins
2 5 (8.62%) Git (software)
3 2 (3.45%) Atlassian Bamboo
3 2 (3.45%) Eclipse
3 2 (3.45%) Hudson
3 2 (3.45%) IntelliJ
3 2 (3.45%) JIRA
3 2 (3.45%) JMeter
3 2 (3.45%) Maven
3 2 (3.45%) Subversion
3 2 (3.45%) VSS/SourceSafe
3 2 (3.45%) WebStorm
4 1 (1.72%) GitLab
General
1 2 (3.45%) Finance
1 2 (3.45%) Games
2 1 (1.72%) Automotive
Job Titles
1 16 (27.59%) Administrator
1 16 (27.59%) Systems Administrator
2 14 (24.14%) Linux Engineer
3 13 (22.41%) Linux Administrator
3 13 (22.41%) Linux Systems Administrator
3 13 (22.41%) Systems Engineer
4 12 (20.69%) DevOps Engineer
5 11 (18.97%) Linux Systems Engineer
6 10 (17.24%) Linux/Unix DevOps
7 9 (15.52%) AWS Engineer
8 8 (13.79%) Architect
8 8 (13.79%) AWS Architect
9 7 (12.07%) DevOps Administrator
9 7 (12.07%) Infrastructure Engineer
9 7 (12.07%) Linux DevOps Administrator
10 6 (10.34%) Analyst
10 6 (10.34%) Desktop Support
10 6 (10.34%) Linux DevOps Engineer
10 6 (10.34%) Senior Linux Engineer
10 6 (10.34%) Support Analyst
Libraries, Frameworks & Software Standards
1 8 (13.79%) Web Services
2 4 (6.90%) HTML
3 2 (3.45%) Apache Axis
3 2 (3.45%) CSS
3 2 (3.45%) HTML5
3 2 (3.45%) J2EE
3 2 (3.45%) J2SE
3 2 (3.45%) Java EE
3 2 (3.45%) Java SE
3 2 (3.45%) JMS
3 2 (3.45%) jQuery
3 2 (3.45%) JSON
3 2 (3.45%) JSP
3 2 (3.45%) Node.js
3 2 (3.45%) REST
3 2 (3.45%) Spring
3 2 (3.45%) Twitter Bootstrap
4 1 (1.72%) Apache Commons
4 1 (1.72%) Natural Language Processing
4 1 (1.72%) RESTful
Miscellaneous
1 21 (36.21%) Data Centre
2 6 (10.34%) Handset
3 5 (8.62%) Cyberthreat
4 4 (6.90%) Analytical Skills
4 4 (6.90%) Computer Science
5 2 (3.45%) Clustering
5 2 (3.45%) Distributed Denial-of-Service
5 2 (3.45%) Driving Licence
5 2 (3.45%) iSeries
5 2 (3.45%) Public Cloud
6 1 (1.72%) Management Information System
6 1 (1.72%) Robotics
Operating Systems
1 58 (100.00%) Linux
2 37 (63.79%) Ubuntu
3 30 (51.72%) Red Hat Enterprise Linux
4 27 (46.55%) Windows
5 11 (18.97%) Mac OS
6 10 (17.24%) Windows Server
7 9 (15.52%) Debian
7 9 (15.52%) Unix
8 8 (13.79%) Windows Server 2012
9 6 (10.34%) Windows Server 2008
10 2 (3.45%) DC/OS
11 1 (1.72%) CoreOS
11 1 (1.72%) Mac OS X
11 1 (1.72%) VyOS
Processes & Methodologies
1 36 (62.07%) DevOps
2 10 (17.24%) E-Commerce
3 9 (15.52%) ITIL
4 8 (13.79%) Agile Software Development
4 8 (13.79%) Continuous Delivery
5 7 (12.07%) Mentoring
6 6 (10.34%) Continuous Integration
6 6 (10.34%) Information Security
6 6 (10.34%) Machine Learning
6 6 (10.34%) Proactive Management
6 6 (10.34%) Problem Management
7 5 (8.62%) Artificial Intelligence
7 5 (8.62%) Configuration Management
7 5 (8.62%) Reinforcement Learning
8 4 (6.90%) Scrum
9 2 (3.45%) Business Continuity
9 2 (3.45%) Data Management
9 2 (3.45%) Data Security
9 2 (3.45%) Release Management
9 2 (3.45%) Software Engineering
Programming Languages
1 34 (58.62%) Bash Shell
2 33 (56.90%) Python
3 14 (24.14%) Perl
4 10 (17.24%) Java
5 7 (12.07%) Ruby
6 5 (8.62%) PHP
6 5 (8.62%) Shell Script
7 4 (6.90%) SQL
8 2 (3.45%) C#
8 2 (3.45%) JavaScript
8 2 (3.45%) Korn
8 2 (3.45%) PowerShell
9 1 (1.72%) C++
9 1 (1.72%) Jython
Qualifications
1 9 (15.52%) Cisco Certification
2 8 (13.79%) CCNA
3 1 (1.72%) CCIE
3 1 (1.72%) CCNP
3 1 (1.72%) Computer Science Degree
3 1 (1.72%) Degree
Quality Assurance & Compliance
1 2 (3.45%) ISO/IEC 27001
1 2 (3.45%) PCI DSS
System Software
1 23 (39.66%) Docker
2 15 (25.86%) VMware Infrastructure
3 13 (22.41%) Active Directory
4 11 (18.97%) vSphere
5 9 (15.52%) Hyper-V
6 6 (10.34%) LXC
6 6 (10.34%) Terminal Services
6 6 (10.34%) VMware ESXi
6 6 (10.34%) VMware Workstation
7 2 (3.45%) KVM
7 2 (3.45%) Postfix
7 2 (3.45%) PowerDNS
7 2 (3.45%) XenServer
8 1 (1.72%) iptables
8 1 (1.72%) NFS
Systems Management
1 36 (62.07%) Puppet
2 35 (60.34%) Opscode Chef
3 30 (51.72%) Ansible
4 16 (27.59%) Kubernetes
5 15 (25.86%) ZABBIX
6 13 (22.41%) Grafana
6 13 (22.41%) Munin
7 9 (15.52%) Salt
8 6 (10.34%) Graphite
8 6 (10.34%) Graylog
8 6 (10.34%) Kibana
8 6 (10.34%) logstash
8 6 (10.34%) vCenter Server
9 5 (8.62%) Nagios
10 3 (5.17%) cPanel
10 3 (5.17%) Plesk
10 3 (5.17%) Terraform
11 2 (3.45%) Docker Swarm
11 2 (3.45%) Marathon
11 2 (3.45%) Microsoft Clustering
Vendors
1 35 (60.34%) VMware
2 28 (48.28%) Red Hat
3 12 (20.69%) Cisco
3 12 (20.69%) Google
4 11 (18.97%) Microsoft
5 6 (10.34%) Splunk
6 4 (6.90%) HP
6 4 (6.90%) Veeam
7 3 (5.17%) CheckPoint
7 3 (5.17%) F5
7 3 (5.17%) Juniper
8 2 (3.45%) 3PAR
8 2 (3.45%) Acronis
8 2 (3.45%) Aruba
8 2 (3.45%) Atlassian
8 2 (3.45%) Blue Coat
8 2 (3.45%) Clearswift
8 2 (3.45%) Nokia
8 2 (3.45%) Oracle
8 2 (3.45%) Polycom