The table below looks at the statistics for CentOS skills in IT contracts advertised for the London region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 26 September 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
26 Sep 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 198 285 313
Rank change year-on-year
+87 +28
Contract jobs citing CentOS 272 153 125
As % of all contract IT jobs located in London 1.19% 0.66% 0.51%
As % of the Operating Systems category 5.74% 3.07% 2.24%
Number of daily rates quoted 164 100 90
Median daily rate £500 £425 £400
Median daily rate % change year-on-year
+17.64% +6.25%
90% offered a daily rate of more than £375 £325 £325
10% offered a daily rate of more than £600 £514 £525
UK excluding London median daily rate £425 £388 £375
% change year-on-year
+9.67% +3.33%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £13.50 £36.00 -
% change year-on-year
-62.50% -
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 London region.

Operating Systems Category
London
Contract IT job ads with a match in the
Operating Systems category
4738 4981 5577
As % of all contract IT jobs located in London 20.66% 21.59% 22.75%
Number of daily rates quoted 3263 3410 3745
Median daily rate £450 £413 £400
Median daily rate % change year-on-year
+9.09% +3.12%
90% offered a daily rate of more than £225 £185 £180
10% offered a daily rate of more than £575 £550 £550
UK excluding London median daily rate £350 £350 £325
% change year-on-year
- +7.69%
Number of hourly rates quoted 101 152 244
Median hourly rate £16.50 £16.95 £15.50
Median hourly rate % change year-on-year
-2.65% +9.35%
90% offered a hourly rate of more than £11.50 £12.50 £12.00
10% offered a hourly rate of more than £50.00 £37.50 £34.56
UK excluding London median hourly rate £16.00 £16.50 £16.50
% change year-on-year
-3.03% -

CentOS
Jobs Demand Trend in London

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

CentOS Jobs Demand Trend in London

CentOS
Daily Rate Trend in London

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

CentOS Daily Rate Trend in London

CentOS
Daily Rate Histogram in London

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the London region over the 3 months to 26 September 2016.

CentOS Daily Rate Histogram in London

CentOS
Hourly Rate Trend in London

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

CentOS Hourly Rate Trend in London

CentOS
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the London region over the 3 months to 26 September 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
Croydon 0 32 £463 +2.77%
City of London +27 27 £475 +12.42% 10
Harrow - 3 £500 -
Bromley - 1 £475 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 26 September 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 London region with a requirement for CentOS.

1 442 (100.00%) Linux
2 343 (77.60%) DevOps
3 261 (59.05%) Puppet
4 242 (54.75%) Agile Software Development
5 231 (52.26%) Ansible
6 225 (50.90%) Jenkins
7 216 (48.87%) Amazon AWS
8 206 (46.61%) Continuous Integration
9 201 (45.48%) Docker
10 192 (43.44%) Configuration Management
11 185 (41.86%) Git (software)
12 180 (40.72%) VMware
13 178 (40.27%) Ruby
14 176 (39.82%) Apache
15 174 (39.37%) PostgreSQL
16 168 (38.01%) Red Hat
17 154 (34.84%) Red Hat Enterprise Linux
18 151 (34.16%) JIRA
19 147 (33.26%) Scrum
20 146 (33.03%) Ubuntu
20 146 (33.03%) Security Cleared
20 146 (33.03%) Confluence
21 144 (32.58%) Bash Shell
22 138 (31.22%) Continuous Delivery
23 134 (30.32%) SC Cleared
23 134 (30.32%) Python
24 131 (29.64%) Kubernetes
25 124 (28.05%) DNS
26 123 (27.83%) Atlassian
27 120 (27.15%) Terraform

CentOS
Top Related IT Skills in London 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
1 176 (39.82%) Apache
2 146 (33.03%) Confluence
3 81 (18.33%) Elasticsearch
4 71 (16.06%) Tomcat
5 55 (12.44%) OpenStack
6 41 (9.28%) nginx
7 30 (6.79%) JBoss
8 24 (5.43%) Mule ESB
9 20 (4.52%) Jetty
9 20 (4.52%) WildFly
10 17 (3.85%) IIS
11 8 (1.81%) Apache Spark
12 5 (1.13%) MediaWiki
13 4 (0.90%) Exchange Server 2010
13 4 (0.90%) MS Exchange
14 3 (0.68%) Moodle
15 2 (0.45%) CMS
15 2 (0.45%) ColdFusion
16 1 (0.23%) SharePoint
16 1 (0.23%) WebSphere
Applications
1 83 (18.78%) HipChat
2 1 (0.23%) Adobe Creative Suite
2 1 (0.23%) MS Excel
2 1 (0.23%) MS Office
2 1 (0.23%) MS PowerPoint
2 1 (0.23%) MS Project
Business Applications
1 4 (0.90%) SAP Oil and Gas
Cloud Services
1 216 (48.87%) Amazon AWS
2 28 (6.33%) GitHub
3 17 (3.85%) Microsoft Azure
4 13 (2.94%) Amazon EC2
5 12 (2.71%) IaaS
6 11 (2.49%) Google Cloud Platform
7 8 (1.81%) Amazon S3
8 7 (1.58%) AWS CloudFormation
9 5 (1.13%) Google Apps
9 5 (1.13%) PaaS
10 4 (0.90%) Amazon CloudWatch
11 3 (0.68%) Amazon ELB
11 3 (0.68%) Amazon SQS
11 3 (0.68%) Rackspace Cloud
11 3 (0.68%) SaaS
11 3 (0.68%) Virtual Private Cloud
12 2 (0.45%) Amazon ElastiCache
12 2 (0.45%) Amazon EMR
12 2 (0.45%) CloudFront
12 2 (0.45%) Route 53
Communications & Networking
1 124 (28.05%) DNS
2 87 (19.68%) SSH
3 83 (18.78%) OpenLDAP
4 79 (17.87%) OpenVPN
5 53 (11.99%) VPN
6 48 (10.86%) Firewall
7 38 (8.60%) LDAP
8 29 (6.56%) TCP/IP
9 25 (5.66%) Reverse Proxy
10 19 (4.30%) DMZ
11 12 (2.71%) SAN
12 11 (2.49%) SNMP
13 10 (2.26%) LAN
13 10 (2.26%) SSL
14 9 (2.04%) WAN
15 8 (1.81%) Internet
15 8 (1.81%) Network Security
16 7 (1.58%) DHCP
16 7 (1.58%) Fibre Channel
16 7 (1.58%) HTTP
Database & Business Intelligence
1 174 (39.37%) PostgreSQL
2 96 (21.72%) Hadoop
3 90 (20.36%) MySQL
4 44 (9.95%) NoSQL
5 38 (8.60%) MongoDB
6 20 (4.52%) Redis
7 12 (2.71%) Relational Database
8 11 (2.49%) SQL Server
9 8 (1.81%) Amazon RDS
10 4 (0.90%) Big Data
10 4 (0.90%) RDBMS
10 4 (0.90%) SQL Server 2012
11 3 (0.68%) HBase
12 2 (0.45%) Amazon DynamoDB
12 2 (0.45%) Amazon Redshift
12 2 (0.45%) Apache Cassandra
12 2 (0.45%) InfluxDB
12 2 (0.45%) MariaDB
13 1 (0.23%) Ingres
13 1 (0.23%) SQL Server 2008
Development Applications
1 225 (50.90%) Jenkins
2 185 (41.86%) Git (software)
3 151 (34.16%) JIRA
4 112 (25.34%) Maven
5 102 (23.08%) Sonatype Nexus
6 95 (21.49%) JIRA Agile
7 90 (20.36%) SonarQube
8 89 (20.14%) Ant
9 78 (17.65%) Bitbucket
10 77 (17.42%) JUnit
11 76 (17.19%) Liquibase
12 28 (6.33%) Gerrit
13 27 (6.11%) Mercurial
14 24 (5.43%) GitLab
15 19 (4.30%) Subversion
16 16 (3.62%) Gradle
17 15 (3.39%) Artifactory
18 12 (2.71%) Hudson
19 10 (2.26%) TeamCity
19 10 (2.26%) Vagrant
General
1 32 (7.24%) Finance
2 14 (3.17%) Retail
3 13 (2.94%) Publishing
4 10 (2.26%) Back Office
4 10 (2.26%) Telecoms
5 7 (1.58%) Legal
6 6 (1.36%) Front Office
6 6 (1.36%) Marketing
7 5 (1.13%) Games
7 5 (1.13%) Manufacturing
8 4 (0.90%) Electronics
9 3 (0.68%) Banking
10 1 (0.23%) Financial Institution
Job Titles
1 226 (51.13%) DevOps Engineer
2 77 (17.42%) Linux Engineer
3 69 (15.61%) Linux/Unix DevOps
4 68 (15.38%) Senior DevOps
5 59 (13.35%) Senior DevOps Engineer
6 53 (11.99%) Linux DevOps Engineer
7 52 (11.76%) Administrator
8 51 (11.54%) AWS DevOps
9 41 (9.28%) Systems Administrator
10 40 (9.05%) AWS Engineer
11 37 (8.37%) Consultant
12 36 (8.14%) Linux Administrator
13 35 (7.92%) DevOps Consultant
14 30 (6.79%) Lead DevOps
15 29 (6.56%) Linux Systems Administrator
16 28 (6.33%) Continuous Deployment Engineer
17 18 (4.07%) Developer
18 14 (3.17%) Senior Consultant
18 14 (3.17%) Senior DevOps Consultant
19 13 (2.94%) Senior Linux Engineer
Libraries, Frameworks & Software Standards
1 85 (19.23%) ELK Stack
2 81 (18.33%) Software Packaging
3 77 (17.42%) MCollective
4 58 (13.12%) LAMP
5 45 (10.18%) Web Services
6 34 (7.69%) LAPP Stack
7 29 (6.56%) LEMP Stack
8 24 (5.43%) RabbitMQ
9 14 (3.17%) J2EE
9 14 (3.17%) REST
10 11 (2.49%) RESTful
11 10 (2.26%) Node.js
11 10 (2.26%) XML
12 9 (2.04%) ActiveMQ
13 7 (1.58%) Spring
14 6 (1.36%) Apache Camel
14 6 (1.36%) HTML
14 6 (1.36%) Java EE
14 6 (1.36%) JSON
15 5 (1.13%) jQuery
Miscellaneous
1 31 (7.01%) Public Cloud
2 16 (3.62%) Clustering
3 14 (3.17%) Data Centre
4 13 (2.94%) Mobile App
5 10 (2.26%) Management Information System
6 9 (2.04%) Enterprise Software
6 9 (2.04%) Visualisation
7 8 (1.81%) Private Cloud
8 7 (1.58%) Digital Media
8 7 (1.58%) Hybrid Cloud
9 6 (1.36%) Analytical Skills
9 6 (1.36%) Hedge funds
9 6 (1.36%) Replication
10 5 (1.13%) Enterprise Cloud
10 5 (1.13%) Wiki
11 4 (0.90%) Computer Science
11 4 (0.90%) Derivative
11 4 (0.90%) Fintech
12 3 (0.68%) Device Driver
12 3 (0.68%) Freedom of Information
Operating Systems
1 442 (100.00%) Linux
2 154 (34.84%) Red Hat Enterprise Linux
3 146 (33.03%) Ubuntu
4 72 (16.29%) Windows
5 36 (8.14%) Unix
6 30 (6.79%) Windows Server
7 29 (6.56%) Fedora
8 18 (4.07%) Debian
9 14 (3.17%) CoreOS
10 12 (2.71%) Windows Server 2003
11 11 (2.49%) Windows Server 2008
11 11 (2.49%) Windows Server 2012
12 10 (2.26%) Mac OS X
13 8 (1.81%) SUSE
14 7 (1.58%) Solaris
15 5 (1.13%) Android
15 5 (1.13%) Apple iOS
15 5 (1.13%) Mac OS X Server
15 5 (1.13%) VMS
16 2 (0.45%) Amazon Linux
Processes & Methodologies
1 343 (77.60%) DevOps
2 242 (54.75%) Agile Software Development
3 206 (46.61%) Continuous Integration
4 192 (43.44%) Configuration Management
5 147 (33.26%) Scrum
6 138 (31.22%) Continuous Delivery
7 79 (17.87%) Identity Management
8 76 (17.19%) Service Management
9 75 (16.97%) Workflow
10 70 (15.84%) Case Management
11 68 (15.38%) Coaching
12 59 (13.35%) Open Source
13 56 (12.67%) Load Balancing
14 51 (11.54%) Stakeholder Management
15 30 (6.79%) Continuous Deployment
16 28 (6.33%) SDLC
17 26 (5.88%) Migration
18 23 (5.20%) High Availability
19 22 (4.98%) Mentoring
19 22 (4.98%) Software Engineering
Programming Languages
1 178 (40.27%) Ruby
2 144 (32.58%) Bash Shell
3 134 (30.32%) Python
4 99 (22.40%) Perl
5 91 (20.59%) Shell Script
6 89 (20.14%) Java
7 53 (11.99%) PHP
8 25 (5.66%) JavaScript
8 25 (5.66%) SQL
9 23 (5.20%) Groovy
10 18 (4.07%) PowerShell
11 5 (1.13%) AWK
11 5 (1.13%) Go
11 5 (1.13%) sed
12 4 (0.90%) C#
13 2 (0.45%) C
13 2 (0.45%) C-shell
14 1 (0.23%) Pig Latin
14 1 (0.23%) R
14 1 (0.23%) Scala
Qualifications
1 146 (33.03%) Security Cleared
2 134 (30.32%) SC Cleared
3 43 (9.73%) CTC Cleared
4 32 (7.24%) BPSS Clearance
5 9 (2.04%) CCNA
5 9 (2.04%) Cisco Certification
6 6 (1.36%) BC Cleared
6 6 (1.36%) Degree
7 4 (0.90%) CCNP
7 4 (0.90%) DV Cleared
8 2 (0.45%) CCDA
8 2 (0.45%) CCIE
9 1 (0.23%) AWS Certification
9 1 (0.23%) CCSA
9 1 (0.23%) CCSE
9 1 (0.23%) Microsoft Certification
9 1 (0.23%) RHCE
Quality Assurance & Compliance
1 20 (4.52%) QA
2 4 (0.90%) PCI DSS
3 3 (0.68%) Disclosure Scotland
4 1 (0.23%) HMG Security Policy Framework
System Software
1 201 (45.48%) Docker
2 101 (22.85%) vCloud
3 82 (18.55%) Postfix
4 79 (17.87%) Squid
5 75 (16.97%) VMware Infrastructure
6 50 (11.31%) Active Directory
7 42 (9.50%) Virtual Machines
8 23 (5.20%) Xen
9 19 (4.30%) KVM
10 14 (3.17%) VMware ESXi
11 12 (2.71%) Samba
12 10 (2.26%) iptables
13 7 (1.58%) VirtualBox
13 7 (1.58%) XenServer
14 5 (1.13%) Hyper-V
14 5 (1.13%) StorNext
15 4 (0.90%) DFS Replication
15 4 (0.90%) NFS
16 3 (0.68%) oVirt
16 3 (0.68%) vSphere
Systems Management
1 261 (59.05%) Puppet
2 231 (52.26%) Ansible
3 131 (29.64%) Kubernetes
4 120 (27.15%) Terraform
5 117 (26.47%) ZABBIX
6 112 (25.34%) logstash
7 108 (24.43%) Kibana
8 81 (18.33%) Rancher
9 75 (16.97%) Opscode Chef
10 37 (8.37%) HAProxy
11 35 (7.92%) Nagios
12 27 (6.11%) Salt
13 15 (3.39%) Packer
13 15 (3.39%) Rundeck
14 13 (2.94%) SCCM
15 10 (2.26%) Zenoss
16 9 (2.04%) vRealize
17 7 (1.58%) Oracle ZFS
18 5 (1.13%) Icinga
18 5 (1.13%) Symantec Endpoint Protection
Vendors
1 180 (40.72%) VMware
2 168 (38.01%) Red Hat
3 123 (27.83%) Atlassian
4 89 (20.14%) Sonatype
5 80 (18.10%) Oracle
6 24 (5.43%) Cisco
7 20 (4.52%) Microsoft
8 17 (3.85%) EMC
9 16 (3.62%) Google
10 14 (3.17%) Dell
11 13 (2.94%) Black Duck
11 13 (2.94%) Veracode
12 12 (2.71%) Citrix
13 10 (2.26%) NetApp
14 9 (2.04%) Apple
14 9 (2.04%) Symantec
15 8 (1.81%) SaltStack
16 7 (1.58%) HP
16 7 (1.58%) New Relic
17 5 (1.13%) Splunk
City, London
Careerwise UK Limited
Rate: £500 - £550 per day
Posted: 36 minutes ago
London
Careerwise UK Limited
Rate: £550 - £600 per day
Posted: 1 hour ago
London
E-synergy Solutions
Rate: £450 - £550 per day
Posted: 2 days ago
London
E-synergy Solutions
Rate: £550 - £600 per day
Posted: 3 days ago
London
Blue Personnel
Rate: From £450 to £550 per day
Posted: 6 days ago
London
Experis Ltd
Posted: 6 days ago