The table below looks at the statistics for CentOS skills in IT contracts advertised for the Croydon region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 10 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
10 Dec 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 22 22 28
Rank change year-on-year
0 +6
Contract jobs citing CentOS 26 7 2
As % of all contract IT jobs located in Croydon 9.96% 4.09% 1.35%
As % of the Operating Systems category 36.62% 16.28% 11.11%
Number of daily rates quoted 7 4 2
Median daily rate £488 £463 £400
Median daily rate % change year-on-year
+5.40% +15.62%
UK excluding London median daily rate £450 £423 £375
% change year-on-year
+6.50% +12.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £18.00 £50.50 -
% change year-on-year
-64.35% -
CentOS
London

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

Operating Systems Category
Croydon
Contract IT job ads with a match in the
Operating Systems category
71 43 18
As % of all contract IT jobs located in Croydon 27.20% 25.15% 12.16%
Number of daily rates quoted 20 26 13
Median daily rate £455 £450 £400
Median daily rate % change year-on-year
+1.11% +12.50%
90% offered a daily rate of more than £155 £140 £265
10% offered a daily rate of more than £528 £500 £510
UK excluding London median daily rate £350 £350 £333
% change year-on-year
- +5.26%
Number of hourly rates quoted 0 4 3
Median hourly rate - £13.50 £20.50
Median hourly rate % change year-on-year
- -34.14%
UK excluding London median hourly rate £16.50 £16.50 £16.00
% change year-on-year
- +3.12%

CentOS
Jobs Demand Trend in Croydon

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

CentOS Jobs Demand Trend in Croydon

CentOS
Daily Rate Trend in Croydon

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

CentOS Daily Rate Trend in Croydon

CentOS
Daily Rate Histogram in Croydon

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the Croydon region over the 3 months to 10 December 2016.

CentOS Daily Rate Histogram in Croydon

CentOS
Top 30 Related IT Skills in Croydon

For the 6 months to 10 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 Croydon region with a requirement for CentOS.

1 55 (100.00%) Linux
2 53 (96.36%) Security Cleared
3 50 (90.91%) SC Cleared
4 45 (81.82%) DevOps
5 44 (80.00%) PostgreSQL
6 41 (74.55%) Agile Software Development
7 38 (69.09%) Jenkins
7 38 (69.09%) Continuous Integration
8 37 (67.27%) JIRA
8 37 (67.27%) Puppet
9 36 (65.45%) Confluence
9 36 (65.45%) Scrum
10 34 (61.82%) Ansible
10 34 (61.82%) JIRA Agile
11 33 (60.00%) Docker
11 33 (60.00%) Amazon AWS
11 33 (60.00%) VMware
11 33 (60.00%) Workflow
12 32 (58.18%) Git (software)
12 32 (58.18%) Terraform
12 32 (58.18%) Kubernetes
13 30 (54.55%) Maven
14 29 (52.73%) Apache
14 29 (52.73%) DNS
14 29 (52.73%) OpenLDAP
15 28 (50.91%) ZABBIX
15 28 (50.91%) Atlassian
15 28 (50.91%) Continuous Delivery
16 27 (49.09%) ELK Stack
16 27 (49.09%) Hadoop

CentOS
Top Related IT Skills in Croydon 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 36 (65.45%) Confluence
2 29 (52.73%) Apache
3 26 (47.27%) Elasticsearch
4 9 (16.36%) nginx
5 2 (3.64%) JBoss
5 2 (3.64%) Jetty
5 2 (3.64%) Tomcat
5 2 (3.64%) WildFly
6 1 (1.82%) Mule ESB
Applications
1 26 (47.27%) HipChat
Cloud Services
1 33 (60.00%) Amazon AWS
2 5 (9.09%) Amazon CloudWatch
2 5 (9.09%) Amazon EC2
2 5 (9.09%) Amazon S3
2 5 (9.09%) AWS CloudTrail
2 5 (9.09%) Route 53
2 5 (9.09%) Virtual Private Cloud
Communications & Networking
1 29 (52.73%) DNS
1 29 (52.73%) OpenLDAP
2 26 (47.27%) OpenVPN
2 26 (47.27%) SSH
3 15 (27.27%) VPN
4 10 (18.18%) LDAP
5 8 (14.55%) Reverse Proxy
6 7 (12.73%) Firewall
6 7 (12.73%) IPsec
7 5 (9.09%) Cisco Nexus
8 2 (3.64%) CTI
8 2 (3.64%) DMZ
9 1 (1.82%) SNMP
Database & Business Intelligence
1 44 (80.00%) PostgreSQL
2 27 (49.09%) Hadoop
3 8 (14.55%) Oracle Database
3 8 (14.55%) Oracle Database 11g
4 5 (9.09%) Amazon RDS
5 2 (3.64%) MySQL
6 1 (1.82%) NoSQL
Development Applications
1 38 (69.09%) Jenkins
2 37 (67.27%) JIRA
3 34 (61.82%) JIRA Agile
4 32 (58.18%) Git (software)
5 30 (54.55%) Maven
6 26 (47.27%) Ant
6 26 (47.27%) JUnit
6 26 (47.27%) Liquibase
6 26 (47.27%) SonarQube
6 26 (47.27%) Sonatype Nexus
7 20 (36.36%) Bitbucket
8 2 (3.64%) Mercurial
9 1 (1.82%) Gerrit
9 1 (1.82%) GitLab
Job Titles
1 20 (36.36%) DevOps Engineer
2 16 (29.09%) Consultant
3 9 (16.36%) DevOps Consultant
4 8 (14.55%) Administrator
5 7 (12.73%) Systems Administrator
6 6 (10.91%) AWS DevOps
7 5 (9.09%) Lead DevOps
8 4 (7.27%) Linux/Unix DevOps
8 4 (7.27%) Unix Administrator
9 3 (5.45%) AWS Consultant
9 3 (5.45%) AWS Engineer
9 3 (5.45%) Cisco Administrator
9 3 (5.45%) Linux Administrator
9 3 (5.45%) Linux Consultant
9 3 (5.45%) Linux Systems Administrator
9 3 (5.45%) Unix Systems Administrator
9 3 (5.45%) VMWare Administrator
10 2 (3.64%) Server Administrator
11 1 (1.82%) Infrastructure Architect
11 1 (1.82%) Senior Systems Administrator
Libraries, Frameworks & Software Standards
1 27 (49.09%) ELK Stack
2 26 (47.27%) MCollective
2 26 (47.27%) Software Packaging
3 3 (5.45%) ActiveMQ
3 3 (5.45%) Web Services
4 2 (3.64%) LAMP
4 2 (3.64%) LAPP Stack
4 2 (3.64%) LEMP Stack
5 1 (1.82%) Oracle GoldenGate
5 1 (1.82%) RabbitMQ
Miscellaneous
1 5 (9.09%) Public Cloud
2 2 (3.64%) Freedom of Information
2 2 (3.64%) Freedom of Information Act
2 2 (3.64%) Management Information System
3 1 (1.82%) PKI
3 1 (1.82%) Spread Betting
Operating Systems
1 55 (100.00%) Linux
2 15 (27.27%) Red Hat Enterprise Linux
3 12 (21.82%) Ubuntu
4 7 (12.73%) RancherOS
4 7 (12.73%) VyOS
5 5 (9.09%) Unix
6 4 (7.27%) Windows
6 4 (7.27%) Windows Server
7 3 (5.45%) Solaris
Processes & Methodologies
1 45 (81.82%) DevOps
2 41 (74.55%) Agile Software Development
3 38 (69.09%) Continuous Integration
4 36 (65.45%) Scrum
5 33 (60.00%) Workflow
6 28 (50.91%) Continuous Delivery
7 26 (47.27%) Configuration Management
7 26 (47.27%) Identity Management
7 26 (47.27%) Service Management
8 25 (45.45%) Stakeholder Management
9 19 (34.55%) Case Management
10 18 (32.73%) Coaching
11 8 (14.55%) Change Management
11 8 (14.55%) Process Management
12 7 (12.73%) Load Balancing
13 5 (9.09%) Mentoring
13 5 (9.09%) Software Engineering
14 4 (7.27%) Build Automation
14 4 (7.27%) Server Building
15 3 (5.45%) Project Management
Programming Languages
1 26 (47.27%) Shell Script
2 24 (43.64%) Ruby
3 11 (20.00%) Bash Shell
4 8 (14.55%) Groovy
5 3 (5.45%) SQL
6 2 (3.64%) Java
6 2 (3.64%) Perl
6 2 (3.64%) Python
Qualifications
1 53 (96.36%) Security Cleared
2 50 (90.91%) SC Cleared
3 18 (32.73%) CTC Cleared
4 9 (16.36%) DV Cleared
5 6 (10.91%) BPSS Clearance
6 4 (7.27%) BC Cleared
Quality Assurance & Compliance
1 2 (3.64%) QA
System Software
1 33 (60.00%) Docker
2 26 (47.27%) Postfix
2 26 (47.27%) Squid
2 26 (47.27%) vCloud
3 8 (14.55%) Active Directory
4 6 (10.91%) VMware Infrastructure
5 4 (7.27%) KVM
6 2 (3.64%) Virtual Machines
6 2 (3.64%) VMware ESX
6 2 (3.64%) VMware ESXi
6 2 (3.64%) Xen
Systems Management
1 37 (67.27%) Puppet
2 34 (61.82%) Ansible
3 32 (58.18%) Kubernetes
3 32 (58.18%) Terraform
4 28 (50.91%) ZABBIX
5 27 (49.09%) Kibana
5 27 (49.09%) logstash
6 26 (47.27%) Rancher
7 9 (16.36%) HAProxy
8 8 (14.55%) Consul
8 8 (14.55%) Packer
9 3 (5.45%) yum
10 1 (1.82%) Rsyslog
Vendors
1 33 (60.00%) VMware
2 28 (50.91%) Atlassian
3 27 (49.09%) Oracle
4 26 (47.27%) Sonatype
5 8 (14.55%) AppDynamics
6 7 (12.73%) Vyatta
7 5 (9.09%) Cisco
8 4 (7.27%) Red Hat
9 1 (1.82%) CA