The following table provides summary statistics for permanent job vacancies advertised in England with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 3 months to 29 June 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
UK / England
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 370 400 436
Rank change year-on-year +30 +36  
Permanent jobs citing CentOS 695 706 673
As % of all permanent IT jobs advertised in England 0.83% 0.77% 0.65%
As % of the Operating Systems category 3.28% 3.02% 2.42%
Number of salaries quoted 613 616 609
Median salary £50,000 £50,000 £47,500
Median salary % change year-on-year - +5.26%  
90% offered a salary of more than £32,500 £32,500 £29,350
10% offered a salary of more than £82,500 £77,500 £65,000
UK excluding London median salary £45,000 £47,500 £40,000
% change year-on-year -5.26% +18.75%  

CentOS is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in England with a requirement for operating system skills.

Operating System Skills
England
Permanent job vacancies with a requirement for operating system skills 21202 23393 27786
As % of all permanent IT job vacancies advertised in England 25.38% 25.40% 26.66%
Number of salaries quoted 39297 46283 56509
Median salary £42,500 £42,500 £41,500
Median salary % change year-on-year - +2.40%  
90% offered a salary of more than £25,000 £23,750 £23,250
10% offered a salary of more than £72,500 £67,500 £70,000
UK excluding London median salary £37,500 £37,500 £37,500

CentOS
Job Vacancy Trend in England

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

Job vacancy trend for CentOS in England

CentOS
Salary Trend in England

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

Salary trend for CentOS in England

CentOS
Salary Histogram in England

The salary distribution of IT jobs citing CentOS in England over the 3 months to 29 June 2017.

Salary histogram for CentOS in England

CentOS
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the England region over the 3 months to 29 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
London +6 340 £65,000 +18.18% 23
South East +46 182 £47,500 -9.52% 24
North of England -16 59 £42,075 +5.18% 15
South West +27 49 £38,750 -8.82% 10
Midlands -2 33 £35,000 -17.64% 7
North West -42 32 £37,500 -0.66% 7
East of England -5 30 £50,000 +3.62% 6
West Midlands +35 29 £35,750 -13.85% 3
Yorkshire 0 25 £47,500 +18.01% 8
East Midlands -3 4 £27,500 -35.29% 4
North East +13 2 £40,325 +0.81%
CentOS
UK

For the 6 months to 29 June 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 England region with a requirement for CentOS.

1 1280 (100.00%) Linux
2 725 (56.64%) Red Hat
3 547 (42.73%) DevOps
4 534 (41.72%) Python
5 462 (36.09%) Red Hat Enterprise Linux
5 462 (36.09%) Puppet
6 411 (32.11%) VMware
7 408 (31.88%) Windows
8 405 (31.64%) Bash Shell
9 392 (30.63%) Ubuntu
10 387 (30.23%) Apache
11 366 (28.59%) Ansible
12 358 (27.97%) MySQL
13 332 (25.94%) Amazon AWS
14 313 (24.45%) Perl
15 308 (24.06%) Java
16 297 (23.20%) Opscode Chef
17 274 (21.41%) Docker
18 256 (20.00%) VMware Infrastructure
19 255 (19.92%) Open Source
20 251 (19.61%) Firewall
21 247 (19.30%) DNS
22 246 (19.22%) Nagios
23 243 (18.98%) Agile Software Development
24 231 (18.05%) Jenkins
25 226 (17.66%) Cisco
26 224 (17.50%) Git (software)
27 210 (16.41%) PHP
28 203 (15.86%) LAMP
29 199 (15.55%) Ruby

CentOS
Co-occurring IT Skills in 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
1 387 (30.23%) Apache
2 164 (12.81%) Tomcat
3 132 (10.31%) nginx
4 85 (6.64%) IIS
5 74 (5.78%) Elasticsearch
6 63 (4.92%) OpenStack
7 43 (3.36%) Confluence
8 24 (1.88%) CMS
9 19 (1.48%) MS Exchange
9 19 (1.48%) SharePoint
10 17 (1.33%) JBoss
11 13 (1.02%) Cloud Foundry
12 12 (0.94%) WebSphere
13 11 (0.86%) Exchange Server 2013
13 11 (0.86%) WordPress
14 8 (0.63%) Apache Solr
14 8 (0.63%) Apache Spark
15 5 (0.39%) Moodle
15 5 (0.39%) Oracle Service Bus
16 4 (0.31%) Joomla!
Applications
1 12 (0.94%) Microsoft Office
2 4 (0.31%) Abaqus
3 2 (0.16%) Photoshop
4 1 (0.078%) MS Visio
4 1 (0.078%) SOLIDWORKS
4 1 (0.078%) Spreadsheet
Business Applications
1 15 (1.17%) Magento
2 9 (0.70%) SAP Oil and Gas
3 4 (0.31%) Eloqua
3 4 (0.31%) Oracle EBS
4 3 (0.23%) OpenCart
5 1 (0.078%) Epicor Vantage
Cloud Services
1 332 (25.94%) Amazon AWS
2 104 (8.13%) Microsoft Azure
3 65 (5.08%) SaaS
4 57 (4.45%) Amazon EC2
5 41 (3.20%) AWS CloudFormation
6 39 (3.05%) Amazon S3
6 39 (3.05%) IaaS
7 38 (2.97%) GitHub
8 35 (2.73%) Cloud Computing
9 33 (2.58%) Google Cloud Platform
10 32 (2.50%) PaaS
11 25 (1.95%) Virtual Private Cloud
12 24 (1.88%) Office 365
13 12 (0.94%) Amazon ELB
14 11 (0.86%) Amazon SQS
15 10 (0.78%) AWS Lambda
15 10 (0.78%) OpenShift
15 10 (0.78%) Route 53
16 9 (0.70%) Amazon CloudWatch
16 9 (0.70%) Azure Active Directory
Communications & Networking
1 251 (19.61%) Firewall
2 247 (19.30%) DNS
3 189 (14.77%) SAN
4 169 (13.20%) TCP/IP
5 138 (10.78%) VPN
6 94 (7.34%) WAN
7 93 (7.27%) Internet
8 85 (6.64%) HTTP
9 83 (6.48%) LAN
10 75 (5.86%) SSH
11 70 (5.47%) iSCSI
12 68 (5.31%) DHCP
13 67 (5.23%) SNMP
14 56 (4.38%) LDAP
15 51 (3.98%) Network Security
16 44 (3.44%) SMTP
17 41 (3.20%) VLAN
18 37 (2.89%) Cisco ASA
19 34 (2.66%) Cisco IOS
19 34 (2.66%) NAS
Database & Business Intelligence
1 358 (27.97%) MySQL
2 116 (9.06%) NoSQL
3 113 (8.83%) MongoDB
4 110 (8.59%) SQL Server
5 96 (7.50%) PostgreSQL
6 91 (7.11%) Apache Cassandra
6 91 (7.11%) Redis
7 51 (3.98%) MariaDB
8 49 (3.83%) Big Data
9 38 (2.97%) Hadoop
10 33 (2.58%) Amazon RDS
11 30 (2.34%) Relational Database
12 14 (1.09%) Oracle Database
13 13 (1.02%) Data Warehouse
13 13 (1.02%) SQLite
14 12 (0.94%) DB2
15 10 (0.78%) Neo4j
15 10 (0.78%) Pentaho
16 9 (0.70%) InfluxDB
16 9 (0.70%) SQL Server 2008
Development Applications
1 231 (18.05%) Jenkins
2 224 (17.50%) Git (software)
3 67 (5.23%) JIRA
4 56 (4.38%) Vagrant
5 48 (3.75%) Atlassian Bamboo
6 47 (3.67%) Bitbucket
7 45 (3.52%) JUnit
8 40 (3.13%) Subversion
9 37 (2.89%) TeamCity
10 33 (2.58%) EasyMock
11 30 (2.34%) Maven
12 14 (1.09%) Eclipse
13 12 (0.94%) Selenium
13 12 (0.94%) Talend Open Studio
14 11 (0.86%) GoCD
14 11 (0.86%) Mercurial
15 10 (0.78%) Artifactory
15 10 (0.78%) Octopus Deploy
15 10 (0.78%) Sonatype Nexus
16 9 (0.70%) Gradle
General
1 124 (9.69%) Finance
2 70 (5.47%) Telecoms
3 46 (3.59%) Games
4 43 (3.36%) Marketing
5 21 (1.64%) Banking
6 14 (1.09%) Billing
6 14 (1.09%) Law
6 14 (1.09%) Online Betting
7 10 (0.78%) Manufacturing
8 9 (0.70%) Electronics
9 8 (0.63%) Advertising
9 8 (0.63%) Retail
10 6 (0.47%) Back Office
11 5 (0.39%) Legal
12 4 (0.31%) Music Industry
12 4 (0.31%) Publishing
13 3 (0.23%) Front Office
13 3 (0.23%) Military
14 2 (0.16%) Aerospace
14 2 (0.16%) French Language
Job Titles
1 313 (24.45%) DevOps Engineer
2 277 (21.64%) Administrator
3 248 (19.38%) Systems Administrator
4 224 (17.50%) Linux Engineer
5 210 (16.41%) Linux Administrator
6 191 (14.92%) Linux Systems Administrator
7 128 (10.00%) Linux/Unix DevOps
8 120 (9.38%) Developer
9 118 (9.22%) Systems Engineer
10 84 (6.56%) Linux DevOps Engineer
11 80 (6.25%) Infrastructure Engineer
12 75 (5.86%) Senior DevOps
13 74 (5.78%) Senior DevOps Engineer
14 59 (4.61%) Linux Systems Engineer
15 57 (4.45%) Cloud Engineer
16 56 (4.38%) Network Engineer
17 53 (4.14%) Support Engineer
18 51 (3.98%) Security Engineer
19 46 (3.59%) DevOps Administrator
19 46 (3.59%) Senior Linux Engineer
Libraries, Frameworks & Software Standards
1 203 (15.86%) LAMP
2 87 (6.80%) Web Services
3 83 (6.48%) HTML
4 77 (6.02%) LEMP Stack
5 62 (4.84%) CSS
6 59 (4.61%) Kafka
7 56 (4.38%) Node.js
8 55 (4.30%) Spring
9 46 (3.59%) RESTful
10 38 (2.97%) Elastic Stack
11 36 (2.81%) Java EE
12 34 (2.66%) AngularJS
12 34 (2.66%) JSF
13 33 (2.58%) EJB
14 28 (2.19%) JSON
15 27 (2.11%) REST
16 26 (2.03%) .NET
16 26 (2.03%) jQuery
16 26 (2.03%) RabbitMQ
16 26 (2.03%) XML
Miscellaneous
1 139 (10.86%) Data Centre
2 111 (8.67%) Computer Science
3 83 (6.48%) Analytical Skills
4 71 (5.55%) Linux Command Line
5 46 (3.59%) Management Information System
6 39 (3.05%) Public Cloud
7 35 (2.73%) Wiki
8 33 (2.58%) Private Cloud
9 29 (2.27%) Fintech
10 27 (2.11%) Replication
11 25 (1.95%) Greenfield Project
12 24 (1.88%) PKI
13 21 (1.64%) Clustering
14 19 (1.48%) Cyberthreat
15 18 (1.41%) Enterprise Software
16 17 (1.33%) Hedge funds
17 14 (1.09%) CMDB
17 14 (1.09%) Enterprise Storage
17 14 (1.09%) Mobile Payment
18 13 (1.02%) Mobile App
Operating Systems
1 1280 (100.00%) Linux
2 462 (36.09%) Red Hat Enterprise Linux
3 408 (31.88%) Windows
4 392 (30.63%) Ubuntu
5 195 (15.23%) Debian
6 180 (14.06%) Windows Server
7 150 (11.72%) Unix
8 123 (9.61%) Windows Server 2012
9 114 (8.91%) Windows Server 2008
10 51 (3.98%) Solaris
11 39 (3.05%) AIX
12 31 (2.42%) Fedora
13 27 (2.11%) SUSE Linux Enterprise Server
14 25 (1.95%) Mac OS X
15 24 (1.88%) SUSE
16 19 (1.48%) Oracle Linux
17 16 (1.25%) Kali Linux
17 16 (1.25%) Mac OS
18 15 (1.17%) Windows 7
19 13 (1.02%) Amazon Linux
Processes & Methodologies
1 547 (42.73%) DevOps
2 255 (19.92%) Open Source
3 243 (18.98%) Agile Software Development
4 182 (14.22%) Configuration Management
5 135 (10.55%) ITIL
6 127 (9.92%) Continuous Integration
7 119 (9.30%) High Availability
8 105 (8.20%) Scrum
9 93 (7.27%) Software Engineering
10 86 (6.72%) Load Balancing
11 82 (6.41%) Continuous Improvement
12 72 (5.63%) E-Commerce
13 63 (4.92%) OO
14 58 (4.53%) SIEM
15 55 (4.30%) Continuous Delivery
16 54 (4.22%) Mentoring
17 50 (3.91%) Service Delivery
18 48 (3.75%) Security Patching
19 45 (3.52%) Task Automation
20 44 (3.44%) Microservices
Programming Languages
1 534 (41.72%) Python
2 405 (31.64%) Bash Shell
3 313 (24.45%) Perl
4 308 (24.06%) Java
5 210 (16.41%) PHP
6 199 (15.55%) Ruby
7 166 (12.97%) SQL
8 105 (8.20%) JavaScript
9 88 (6.88%) C++
10 77 (6.02%) PowerShell
11 63 (4.92%) C
12 61 (4.77%) Shell Script
13 44 (3.44%) Go
14 29 (2.27%) Korn
15 24 (1.88%) Groovy
16 17 (1.33%) AWK
17 15 (1.17%) C#
17 15 (1.17%) ES6
17 15 (1.17%) Jython
17 15 (1.17%) T-SQL
Qualifications
1 123 (9.61%) Degree
2 102 (7.97%) Security Cleared
3 64 (5.00%) Cisco Certification
4 48 (3.75%) Computer Science Degree
5 46 (3.59%) Microsoft Certification
5 46 (3.59%) SC Cleared
6 40 (3.13%) RHCE
7 34 (2.66%) CCNA
8 32 (2.50%) MCSE
8 32 (2.50%) VMware Certified Professional (VCP)
9 29 (2.27%) CCNP
10 26 (2.03%) CISSP
10 26 (2.03%) DV Cleared
10 26 (2.03%) RHCSA
11 23 (1.80%) CCSP
12 22 (1.72%) RHCA
13 19 (1.48%) CEH
14 14 (1.09%) CCDP
14 14 (1.09%) CESG Certified Professional
14 14 (1.09%) MCSA
Quality Assurance & Compliance
1 50 (3.91%) ISO/IEC 27001
2 47 (3.67%) PCI DSS
3 23 (1.80%) SLA
4 9 (0.70%) ISO 9001
4 9 (0.70%) QA
4 9 (0.70%) Sarbanes-Oxley
5 8 (0.63%) GDPR
6 7 (0.55%) Cyber Essentials
7 1 (0.078%) GCP
7 1 (0.078%) SSAE 16
System Software
1 274 (21.41%) Docker
2 256 (20.00%) VMware Infrastructure
3 156 (12.19%) Active Directory
4 87 (6.80%) KVM
5 84 (6.56%) Hyper-V
6 65 (5.08%) vSphere
7 62 (4.84%) VMware ESXi
8 54 (4.22%) NFS
9 52 (4.06%) iptables
9 52 (4.06%) Varnish
9 52 (4.06%) XenServer
10 43 (3.36%) Xen
11 39 (3.05%) Virtual Machines
12 21 (1.64%) Postfix
12 21 (1.64%) VirtualBox
13 18 (1.41%) LXC
14 15 (1.17%) pfSense
14 15 (1.17%) Snort
15 12 (0.94%) vCloud
16 10 (0.78%) GlusterFS
Systems Management
1 462 (36.09%) Puppet
2 366 (28.59%) Ansible
3 297 (23.20%) Opscode Chef
4 246 (19.22%) Nagios
5 95 (7.42%) Kubernetes
6 75 (5.86%) Terraform
7 71 (5.55%) ZABBIX
8 63 (4.92%) SELinux
9 51 (3.98%) Salt
10 47 (3.67%) logstash
11 41 (3.20%) Grafana
12 35 (2.73%) Kibana
13 34 (2.66%) CFEngine
14 32 (2.50%) Icinga
15 25 (1.95%) vCenter Server
16 24 (1.88%) HAProxy
16 24 (1.88%) Munin
17 22 (1.72%) cPanel
18 21 (1.64%) SCCM
19 20 (1.56%) Cobbler
Vendors
1 725 (56.64%) Red Hat
2 411 (32.11%) VMware
3 226 (17.66%) Cisco
4 149 (11.64%) Microsoft
5 115 (8.98%) HP
6 74 (5.78%) Juniper
7 71 (5.55%) Oracle
8 58 (4.53%) Dell
9 54 (4.22%) Google
10 37 (2.89%) Citrix
11 35 (2.73%) New Relic
11 35 (2.73%) Splunk
12 34 (2.66%) CheckPoint
13 31 (2.42%) EMC
14 27 (2.11%) IBM
14 27 (2.11%) SaltStack
15 26 (2.03%) Fortinet
15 26 (2.03%) Palo Alto
16 24 (1.88%) McAfee
17 23 (1.80%) NetApp
Farnborough, Hampshire
Austin Fraser
Salary: £60000 - £65000 per annum + Benefits
Posted: 16 hours ago
Reading, Berkshire
Austin Fraser
Salary: £25000 - £35000 per annum + Benefits
Posted: 16 hours ago
Isleworth, Middlesex
Opus Resourcing Ltd
Salary: £60000 - £85000 per annum + Bens + Bonus to 10%
Posted: 23 hours ago
Wakefield, West Yorkshire
Opus Recruitment Solutions Ltd
Salary: £35000 - £45000 per annum
Posted: 2 days ago
Basingstoke, Hampshire
Austin Fraser
Salary: £35000 - £40000 per annum + Benefits
Posted: Yesterday
Manchester, Lancashire
Oscar
Salary: £50000 - £55000 per annum
Posted: Yesterday
Chester, Cheshire
Oscar
Salary: £50000 - £65000 per annum
Posted: Yesterday
West London
Oscar
Salary: £25000 - £40000 per annum
Posted: Yesterday
Birmingham, West Midlands (County)
Oscar
Posted: 2 days ago
Aylesbury, Buckinghamshire
Search Consultancy
Salary: £30000 - £40000 per annum + Benefits
Posted: 2 days ago
Oakham, Leicestershire
Oscar
Salary: £40000 - £45000 per annum
Posted: 2 days ago
London
Verticality Ltd
Salary: £55000 - £65000 per annum, Benefits Benefits & Bonus
Posted: 2 days ago
City, London
ComputAppoint
Salary: £70000 - £85000 per annum
Posted: 5 days ago
Leeds, West Yorkshire
Oscar
Salary: £25000 - £30000 per annum
Posted: 2 days ago
City, London
Harrington Starr
Salary: £70000 - £90000 per annum
Posted: 4 days ago
Leeds, West Yorkshire
Fruition IT Resources Limited
Salary: £40000 - £50000 per annum + Pension, Holiday, Professional Certs
Posted: 6 days ago
Central London / West End
Evolution Recruitment Solutions
Salary: 60,000 to 70,000
Posted: 3 days ago
South East London
Franklin Fitch Limited
Salary: Up to £60,000 per annum
Posted: 6 days ago
Bristol, Avon
Haybrook IT Resourcing Ltd
Salary: Up to £45,000 per annum
Posted: 2 days ago
London
Oliver Bernard
Salary: £55000 - £65000 per annum + Bonus + Benefits
Posted: 6 days ago
London
Open Select Recruitment
Salary: £50000 - £95000 per annum + bonus and benefits
Posted: 5 days ago
Hemel Hempstead, Hertfordshire
HAYS INFORMATION TECHNOLOGY
Salary: £27000.00 - £35000.00 per annum
Posted: Yesterday
Sandbach, Cheshire
Evolution Recruitment Solutions
Salary: 30,000 - 35,000
Posted: 6 days ago
Cambridge, Cambridgeshire
Evolution Recruitment Solutions
Salary: 65k-68k + benefits
Posted: 6 days ago
Reading, Berkshire
ANSON MCCADE
Salary: £35,000 - £40,000 and comprehensive package
Posted: Yesterday
Reading, Berkshire
JobHoller
Salary: £45000 - £50000 per annum + benefits
Posted: 5 days ago
South East London
flatraterecruiting
Salary: From £45,000 to £55,000 per annum £45000.00 - £55000.00 per annum
Posted: 6 days ago
Leeds, West Yorkshire
Candour Solutions
Salary: From £40,000 to £65,000 per annum Excellent Benefits
Posted: 5 days ago
London
Senitor Associates
Salary: £34000 - £41000 per annum
Posted: 6 days ago
Basingstoke, Hampshire
Spectrum IT Recruitment (South) Ltd
Salary: £30000 - £50000 per annum + Benefits
Posted: 5 days ago