The table below looks at the statistics for CentOS skills in IT contracts advertised for the South East region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 7 December 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
7 Dec 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 166 214 228
Rank change year-on-year
+48 +14
Contract jobs citing CentOS 76 58 38
As % of all contract IT jobs located in the South East 0.98% 0.61% 0.39%
As % of the Operating Systems category 4.59% 2.43% 1.53%
Number of daily rates quoted 53 36 19
Median daily rate £450 £409 £425
Median daily rate % change year-on-year
+10.02% -3.76%
90% offered a daily rate of more than £400 £275 £332
10% offered a daily rate of more than £520 £513 £550
UK excluding London median daily rate £450 £409 £375
% change year-on-year
+10.02% +9.06%
Number of hourly rates quoted 1 0 0
Median hourly rate £18.00 - -
UK excluding London median hourly rate £18.00 £50.50 -
% change year-on-year
-64.35% -
CentOS
England

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in contract jobs advertised in the South East region.

Operating Systems Category
South East
Contract IT job ads with a match in the
Operating Systems category
1654 2387 2478
As % of all contract IT jobs located in the South East 21.42% 25.04% 25.26%
Number of daily rates quoted 898 1345 1281
Median daily rate £350 £375 £330
Median daily rate % change year-on-year
-6.66% +13.63%
90% offered a daily rate of more than £180 £210 £160
10% offered a daily rate of more than £500 £500 £475
UK excluding London median daily rate £350 £350 £330
% change year-on-year
- +6.06%
Number of hourly rates quoted 165 238 217
Median hourly rate £18.50 £18.00 £16.16
Median hourly rate % change year-on-year
+2.77% +11.38%
90% offered a hourly rate of more than £12.25 £12.00 £11.46
10% offered a hourly rate of more than £50.00 £47.50 £42.50
UK excluding London median hourly rate £16.50 £16.50 £16.00
% change year-on-year
- +3.12%

CentOS
Jobs Demand Trend in the South East

The demand trend of contract jobs across the South East region citing CentOS as a proportion of all IT contracts with a match in the Operating Systems category.

CentOS Jobs Demand Trend in the South East

CentOS
Daily Rate Trend in the South East

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing CentOS across the South East region.

CentOS Daily Rate Trend in the South East

CentOS
Daily Rate Histogram in the South East

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the South East region over the 3 months to 7 December 2016.

CentOS Daily Rate Histogram in the South East

CentOS
Hourly Rate Trend in the South East

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing CentOS across the South East region.

CentOS Hourly Rate Trend in the South East

CentOS
Contract Job Locations in the South East

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the South East region over the 3 months to 7 December 2016. 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
(Click see detailed
statistics and trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Berkshire +29 24 £475 -2.31% 12
Surrey +28 17 £409 -6.45% 10
Hampshire +8 12 £425 +7.59% 5
Buckinghamshire +22 11 £500 +22.24%
Oxfordshire -3 5 £406 +1.56%
East Sussex - 3 £438 - 2
Middlesex +1 1 £410 -
Kent - 1 - -
CentOS
England

CentOS
Top 30 Related IT Skills in the South East

For the 6 months to 7 December 2016, IT contractor jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the South East region with a requirement for CentOS.

1 115 (100.00%) Linux
2 68 (59.13%) Red Hat Enterprise Linux
3 60 (52.17%) Red Hat
4 59 (51.30%) Puppet
5 47 (40.87%) VMware
6 43 (37.39%) Python
7 42 (36.52%) VMware Infrastructure
8 39 (33.91%) Windows
9 35 (30.43%) Ubuntu
10 34 (29.57%) Security Cleared
10 34 (29.57%) Opscode Chef
11 32 (27.83%) DevOps
12 30 (26.09%) Ansible
13 29 (25.22%) vCloud
13 29 (25.22%) SC Cleared
14 27 (23.48%) VPN
14 27 (23.48%) Jenkins
15 25 (21.74%) vSphere
15 25 (21.74%) Docker
16 24 (20.87%) Perl
17 22 (19.13%) Cisco
18 21 (18.26%) Microsoft
18 21 (18.26%) ITIL
18 21 (18.26%) Unix
19 20 (17.39%) TCP/IP
19 20 (17.39%) Data Centre
20 19 (16.52%) Ruby
20 19 (16.52%) Bash Shell
21 18 (15.65%) Apache
21 18 (15.65%) Subversion

CentOS
Top Related IT Skills in the South East 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 18 (15.65%) Apache
2 8 (6.96%) OpenStack
3 6 (5.22%) Confluence
3 6 (5.22%) Tomcat
4 5 (4.35%) WebSphere
5 3 (2.61%) JBoss
5 3 (2.61%) nginx
6 2 (1.74%) Exchange Server 2010
6 2 (1.74%) MS Exchange
7 1 (0.87%) Apache Qpid
7 1 (0.87%) Drupal
7 1 (0.87%) SAS
7 1 (0.87%) WebSphere Application Server
7 1 (0.87%) WebSphere Process Server
Applications
1 8 (6.96%) MS Office
2 6 (5.22%) MS Excel
Business Applications
1 4 (3.48%) Infor M3
Cloud Services
1 12 (10.43%) Amazon AWS
2 9 (7.83%) GitHub
2 9 (7.83%) IaaS
3 5 (4.35%) AWS CloudFormation
4 4 (3.48%) AWS Lambda
4 4 (3.48%) Microsoft Azure
5 3 (2.61%) PaaS
6 2 (1.74%) SaaS
7 1 (0.87%) Amazon CloudWatch
7 1 (0.87%) Amazon EC2
7 1 (0.87%) Amazon Glacier
7 1 (0.87%) Amazon S3
7 1 (0.87%) Route 53
7 1 (0.87%) Virtual Private Cloud
Communications & Networking
1 27 (23.48%) VPN
2 20 (17.39%) TCP/IP
3 17 (14.78%) IPsec
3 17 (14.78%) SSL
4 16 (13.91%) SAN
5 15 (13.04%) Cisco Nexus
5 15 (13.04%) DNS
6 12 (10.43%) Firewall
7 10 (8.70%) SMTP
8 9 (7.83%) FTP
9 7 (6.09%) HTTP
9 7 (6.09%) Internet
10 4 (3.48%) DHCP
11 3 (2.61%) DVB
11 3 (2.61%) SSH
11 3 (2.61%) VoIP
12 2 (1.74%) ICMP
12 2 (1.74%) LDAP
13 1 (0.87%) LAN
13 1 (0.87%) WAN
Database & Business Intelligence
1 12 (10.43%) MySQL
2 10 (8.70%) NoSQL
3 9 (7.83%) MongoDB
3 9 (7.83%) PostgreSQL
4 8 (6.96%) Hadoop
5 6 (5.22%) Big Data
6 4 (3.48%) Amazon DynamoDB
7 3 (2.61%) Relational Database
8 1 (0.87%) Amazon RDS
8 1 (0.87%) RDBMS
8 1 (0.87%) SQL Server
8 1 (0.87%) SQL Server 2008
8 1 (0.87%) SQL Server 2014
Development Applications
1 27 (23.48%) Jenkins
2 18 (15.65%) Subversion
3 14 (12.17%) Git (software)
4 12 (10.43%) Hudson
5 8 (6.96%) PHPUnit
6 6 (5.22%) JIRA
6 6 (5.22%) Metasploit
7 5 (4.35%) Bitbucket
7 5 (4.35%) Vagrant
8 2 (1.74%) TeamCity
9 1 (0.87%) CMake
9 1 (0.87%) Gerrit
9 1 (0.87%) GitLab
9 1 (0.87%) GoogleTest
9 1 (0.87%) Valgrind
General
1 3 (2.61%) Telecoms
2 2 (1.74%) Finance
3 1 (0.87%) Billing
3 1 (0.87%) Manufacturing
3 1 (0.87%) Retail
Job Titles
1 26 (22.61%) Linux Engineer
2 25 (21.74%) Administrator
3 21 (18.26%) Systems Administrator
4 20 (17.39%) Linux Administrator
5 19 (16.52%) Linux Systems Administrator
6 15 (13.04%) DevOps Engineer
7 14 (12.17%) Linux/Unix DevOps
8 13 (11.30%) Developer
8 13 (11.30%) Infrastructure Engineer
9 10 (8.70%) AWS DevOps
9 10 (8.70%) Technical Leader
10 9 (7.83%) PHP Developer
10 9 (7.83%) Systems Engineer
11 8 (6.96%) DevOps Administrator
11 8 (6.96%) Linux Systems Engineer
12 7 (6.09%) AWS Engineer
12 7 (6.09%) Linux DevOps Administrator
13 6 (5.22%) Consultant
13 6 (5.22%) VMware Specialist
14 5 (4.35%) Senior DevOps
Libraries, Frameworks & Software Standards
1 12 (10.43%) LAMP
2 10 (8.70%) REST
3 8 (6.96%) CakePHP
3 8 (6.96%) jQuery
4 7 (6.09%) JSON
4 7 (6.09%) SOAP
4 7 (6.09%) XML
5 4 (3.48%) Web Services
6 3 (2.61%) HTML
6 3 (2.61%) HTML5
6 3 (2.61%) LAPP Stack
6 3 (2.61%) Node.js
7 2 (1.74%) AngularJS
8 1 (0.87%) Leaflet
8 1 (0.87%) LEMP Stack
8 1 (0.87%) POSIX
8 1 (0.87%) PostGIS
8 1 (0.87%) RESTful
8 1 (0.87%) STL
Miscellaneous
1 20 (17.39%) Data Centre
2 5 (4.35%) Private Cloud
3 4 (3.48%) Management Information System
4 3 (2.61%) Computer Science
4 3 (2.61%) Digital TV
4 3 (2.61%) MPEG
4 3 (2.61%) Replication
4 3 (2.61%) STB
5 2 (1.74%) Mathematics
6 1 (0.87%) Algorithms
6 1 (0.87%) Clustering
6 1 (0.87%) Embedded Systems
6 1 (0.87%) EMC VNX
6 1 (0.87%) Enterprise Cloud
6 1 (0.87%) Freedom of Information
6 1 (0.87%) Freedom of Information Act
6 1 (0.87%) Public Cloud
6 1 (0.87%) VCE vBlock
Operating Systems
1 115 (100.00%) Linux
2 68 (59.13%) Red Hat Enterprise Linux
3 39 (33.91%) Windows
4 35 (30.43%) Ubuntu
5 21 (18.26%) Unix
6 15 (13.04%) Debian
7 3 (2.61%) Solaris
8 1 (0.87%) AIX
8 1 (0.87%) Fedora
8 1 (0.87%) Mac OS
Processes & Methodologies
1 32 (27.83%) DevOps
2 21 (18.26%) ITIL
3 14 (12.17%) Agile Software Development
4 11 (9.57%) ITIL V2
4 11 (9.57%) Scrum
5 10 (8.70%) Capacity Management
5 10 (8.70%) Performance Tuning
6 8 (6.96%) Configuration Management
6 8 (6.96%) Continuous Integration
6 8 (6.96%) OO PHP
6 8 (6.96%) Unit Testing
7 7 (6.09%) Coaching
7 7 (6.09%) SDLC
7 7 (6.09%) Service Management
8 6 (5.22%) Automated Testing
8 6 (5.22%) Ethical Hacking
8 6 (5.22%) Penetration Testing
9 5 (4.35%) Continuous Improvement
9 5 (4.35%) Data Management
9 5 (4.35%) Mentoring
Programming Languages
1 43 (37.39%) Python
2 24 (20.87%) Perl
3 19 (16.52%) Bash Shell
3 19 (16.52%) Ruby
4 17 (14.78%) SQL
5 16 (13.91%) PowerShell
6 13 (11.30%) Java
6 13 (11.30%) JavaScript
6 13 (11.30%) PHP
7 10 (8.70%) C
8 7 (6.09%) C++
9 1 (0.87%) AWK
9 1 (0.87%) Korn
9 1 (0.87%) sed
9 1 (0.87%) Shell Script
Qualifications
1 34 (29.57%) Security Cleared
2 29 (25.22%) SC Cleared
3 13 (11.30%) CCNP
3 13 (11.30%) Cisco Certification
3 13 (11.30%) Degree
4 11 (9.57%) VMware Certified Professional (VCP)
5 6 (5.22%) AWS Certification
5 6 (5.22%) CEH
5 6 (5.22%) DV Cleared
5 6 (5.22%) RHCT
6 5 (4.35%) CCNA
7 2 (1.74%) Microsoft Certification
7 2 (1.74%) RHCA
8 1 (0.87%) PRINCE2 Certification
Quality Assurance & Compliance
1 8 (6.96%) QA
2 2 (1.74%) PCI DSS
System Software
1 42 (36.52%) VMware Infrastructure
2 29 (25.22%) vCloud
3 25 (21.74%) Docker
3 25 (21.74%) vSphere
4 15 (13.04%) Virtual Machines
5 10 (8.70%) VMware ESXi
6 3 (2.61%) Hyper-V
7 2 (1.74%) iptables
7 2 (1.74%) KVM
8 1 (0.87%) Ceph
8 1 (0.87%) Dovecot
8 1 (0.87%) Sendmail
8 1 (0.87%) Squid
8 1 (0.87%) VMware ESX
8 1 (0.87%) Xen
Systems Management
1 59 (51.30%) Puppet
2 34 (29.57%) Opscode Chef
3 30 (26.09%) Ansible
4 9 (7.83%) Terraform
5 8 (6.96%) Nagios
5 8 (6.96%) SCCM
5 8 (6.96%) vRealize
6 5 (4.35%) Pingdom
6 5 (4.35%) SELinux
7 4 (3.48%) SCOM
8 3 (2.61%) Consul
8 3 (2.61%) HAProxy
8 3 (2.61%) vMotion
9 1 (0.87%) Cacti
9 1 (0.87%) Cobbler
9 1 (0.87%) Opsview
9 1 (0.87%) Oracle ZFS
9 1 (0.87%) RANCID
9 1 (0.87%) yum
9 1 (0.87%) ZABBIX
Vendors
1 60 (52.17%) Red Hat
2 47 (40.87%) VMware
3 22 (19.13%) Cisco
4 21 (18.26%) Microsoft
5 6 (5.22%) AppDynamics
5 6 (5.22%) EMC
6 5 (4.35%) Atlassian
6 5 (4.35%) PagerDuty
6 5 (4.35%) SaltStack
7 4 (3.48%) Oracle
8 3 (2.61%) HP
8 3 (2.61%) Veeam
9 2 (1.74%) Juniper
9 2 (1.74%) Mitel
9 2 (1.74%) NetApp
10 1 (0.87%) 3PAR
10 1 (0.87%) Google
10 1 (0.87%) IBM
10 1 (0.87%) New Relic
10 1 (0.87%) Salesforce.com