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 16 January 2017 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
16 Jan 2017
Same period 2016 Same period 2015
CentOS Linux
England / London
Rank 234 234 271
Rank change year-on-year
0 +37
Contract jobs citing CentOS 175 171 140
As % of all contract IT jobs located in London 0.90% 0.83% 0.66%
As % of the Operating Systems category 4.30% 4.07% 2.92%
Number of daily rates quoted 140 117 99
Median daily rate £475 £475 £450
Median daily rate % change year-on-year
- +5.55%
90% offered a daily rate of more than £325 £397 £375
10% offered a daily rate of more than £575 £600 £575
UK excluding London median daily rate £450 £450 £350
% change year-on-year
- +28.57%
Number of hourly rates quoted 1 3 0
Median hourly rate £16.00 £50.00 -
Median hourly rate % change year-on-year
-68.00% -
UK excluding London median hourly rate £18.00 £50.50 £47.50
% change year-on-year
-64.35% +6.31%

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
4074 4199 4797
As % of all contract IT jobs located in London 21.03% 20.46% 22.70%
Number of daily rates quoted 2869 2838 3331
Median daily rate £450 £425 £400
Median daily rate % change year-on-year
+5.88% +6.25%
90% offered a daily rate of more than £200 £185 £190
10% offered a daily rate of more than £600 £575 £550
UK excluding London median daily rate £350 £350 £330
% change year-on-year
- +6.06%
Number of hourly rates quoted 79 142 165
Median hourly rate £20.23 £19.00 £16.50
Median hourly rate % change year-on-year
+6.44% +15.15%
90% offered a hourly rate of more than £13.00 £10.00 £12.50
10% offered a hourly rate of more than £47.83 £50.00 £31.30
UK excluding London median hourly rate £16.50 £17.00 £16.00
% change year-on-year
-2.94% +6.25%

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 16 January 2017.

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 16 January 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
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London -3 16 £438 -1.57% 7
Croydon -2 9 £465 -2.10%
Hammersmith 0 3 £525 -4.54%
Westminster -8 1 £550 +20.61%
Twickenham - 1 £325 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 16 January 2017, 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.

1 436 (100.00%) Linux
2 292 (66.97%) DevOps
3 244 (55.96%) Puppet
4 227 (52.06%) Jenkins
5 225 (51.61%) Ansible
6 217 (49.77%) Agile Software Development
7 213 (48.85%) Docker
8 207 (47.48%) Amazon AWS
9 197 (45.18%) Continuous Integration
10 195 (44.72%) Red Hat Enterprise Linux
11 192 (44.04%) VMware
12 185 (42.43%) Ruby
13 183 (41.97%) Configuration Management
14 179 (41.06%) Apache
15 175 (40.14%) Python
16 174 (39.91%) Git (software)
17 168 (38.53%) Bash Shell
18 159 (36.47%) PostgreSQL
19 158 (36.24%) Security Cleared
20 156 (35.78%) Red Hat
21 148 (33.94%) Ubuntu
22 145 (33.26%) SC Cleared
23 138 (31.65%) Scrum
24 126 (28.90%) Kubernetes
25 121 (27.75%) Continuous Delivery
26 120 (27.52%) Terraform
26 120 (27.52%) DNS
27 119 (27.29%) ZABBIX
28 118 (27.06%) JIRA
29 110 (25.23%) logstash

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
1 179 (41.06%) Apache
2 107 (24.54%) Confluence
3 88 (20.18%) Elasticsearch
4 68 (15.60%) Tomcat
5 63 (14.45%) nginx
6 40 (9.17%) OpenStack
7 31 (7.11%) Jetty
8 30 (6.88%) WildFly
9 25 (5.73%) IIS
9 25 (5.73%) Mule ESB
10 11 (2.52%) Apache Spark
11 8 (1.83%) JBoss
12 6 (1.38%) WebSphere
13 4 (0.92%) Apache Pig
13 4 (0.92%) CMS
14 3 (0.69%) Apache Solr
14 3 (0.69%) ColdFusion
14 3 (0.69%) Exchange Server 2010
14 3 (0.69%) MS Exchange
15 1 (0.23%) WordPress
Applications
1 70 (16.06%) HipChat
2 2 (0.46%) Adobe Creative Suite
3 1 (0.23%) Adobe Illustrator
3 1 (0.23%) Photoshop
Business Applications
1 1 (0.23%) Magento
1 1 (0.23%) SAP Oil and Gas
Cloud Services
1 207 (47.48%) Amazon AWS
2 36 (8.26%) Microsoft Azure
3 32 (7.34%) Amazon EC2
4 29 (6.65%) GitHub
5 22 (5.05%) Amazon S3
6 14 (3.21%) Amazon CloudWatch
7 13 (2.98%) AWS CloudFormation
7 13 (2.98%) Route 53
8 9 (2.06%) IaaS
8 9 (2.06%) Virtual Private Cloud
9 8 (1.83%) AWS CloudTrail
10 7 (1.61%) Amazon SQS
10 7 (1.61%) Cloud Computing
11 6 (1.38%) Amazon ELB
11 6 (1.38%) AWS Lambda
11 6 (1.38%) Azure Active Directory
12 5 (1.15%) Google Cloud Platform
13 2 (0.46%) AWS Elastic Beanstalk
13 2 (0.46%) G Suite
13 2 (0.46%) Office 365
Communications & Networking
1 120 (27.52%) DNS
2 77 (17.66%) SSH
3 76 (17.43%) VPN
4 74 (16.97%) OpenVPN
5 72 (16.51%) OpenLDAP
6 54 (12.39%) Firewall
7 44 (10.09%) Reverse Proxy
8 38 (8.72%) LDAP
9 34 (7.80%) TCP/IP
10 17 (3.90%) DMZ
11 14 (3.21%) IPsec
12 11 (2.52%) Cisco Nexus
13 9 (2.06%) SSL
14 8 (1.83%) SAN
15 7 (1.61%) Kerberos
16 6 (1.38%) SNMP
17 5 (1.15%) HTTP
17 5 (1.15%) Internet
18 4 (0.92%) CTI
18 4 (0.92%) X.509
Database & Business Intelligence
1 159 (36.47%) PostgreSQL
2 90 (20.64%) Hadoop
3 74 (16.97%) MySQL
4 47 (10.78%) NoSQL
5 18 (4.13%) MongoDB
6 17 (3.90%) Amazon RDS
6 17 (3.90%) Relational Database
7 14 (3.21%) Oracle Database
7 14 (3.21%) Oracle Database 11g
8 11 (2.52%) MariaDB
8 11 (2.52%) SQL Server
9 10 (2.29%) Big Data
10 9 (2.06%) Apache Hive
11 6 (1.38%) Apache Cassandra
11 6 (1.38%) Redis
12 5 (1.15%) Amazon DynamoDB
13 4 (0.92%) Ingres
14 3 (0.69%) Data Mining
14 3 (0.69%) Data Warehouse
14 3 (0.69%) SQL Server 2012
Development Applications
1 227 (52.06%) Jenkins
2 174 (39.91%) Git (software)
3 118 (27.06%) JIRA
4 102 (23.39%) Maven
5 83 (19.04%) Sonatype Nexus
6 79 (18.12%) JIRA Agile
7 78 (17.89%) Ant
8 76 (17.43%) SonarQube
9 71 (16.28%) JUnit
10 70 (16.06%) Liquibase
11 66 (15.14%) Bitbucket
12 34 (7.80%) GitLab
13 33 (7.57%) Gerrit
14 29 (6.65%) Mercurial
15 16 (3.67%) Atlassian Bamboo
15 16 (3.67%) Vagrant
16 15 (3.44%) TeamCity
17 13 (2.98%) Gradle
18 8 (1.83%) Octopus Deploy
18 8 (1.83%) Subversion
General
1 31 (7.11%) Finance
2 10 (2.29%) Law
2 10 (2.29%) Legal
3 9 (2.06%) Back Office
3 9 (2.06%) Telecoms
4 8 (1.83%) Publishing
5 7 (1.61%) Retail
6 5 (1.15%) Front Office
7 3 (0.69%) Marketing
8 2 (0.46%) Banking
9 1 (0.23%) Electronics
9 1 (0.23%) Games
9 1 (0.23%) Manufacturing
9 1 (0.23%) Pharmaceutical
Job Titles
1 203 (46.56%) DevOps Engineer
2 74 (16.97%) AWS DevOps
3 65 (14.91%) Administrator
4 63 (14.45%) Senior DevOps
5 58 (13.30%) Linux Engineer
6 56 (12.84%) Systems Administrator
7 53 (12.16%) Consultant
8 49 (11.24%) AWS Engineer
9 48 (11.01%) Linux/Unix DevOps
10 47 (10.78%) Linux Administrator
11 45 (10.32%) Senior DevOps Engineer
12 43 (9.86%) DevOps Consultant
12 43 (9.86%) Linux Systems Administrator
13 37 (8.49%) Linux DevOps Engineer
14 31 (7.11%) Developer
15 28 (6.42%) AWS Consultant
16 21 (4.82%) Senior Consultant
16 21 (4.82%) Senior DevOps Consultant
17 14 (3.21%) Continuous Deployment Engineer
18 13 (2.98%) Lead DevOps
Libraries, Frameworks & Software Standards
1 89 (20.41%) ELK Stack
2 78 (17.89%) MCollective
3 74 (16.97%) Software Packaging
4 46 (10.55%) LAMP
5 38 (8.72%) LAPP Stack
6 32 (7.34%) Web Services
7 29 (6.65%) LEMP Stack
8 25 (5.73%) RabbitMQ
9 22 (5.05%) HTML
10 21 (4.82%) CSS
11 20 (4.59%) JSON
12 18 (4.13%) Node.js
12 18 (4.13%) XML
13 15 (3.44%) RSS
13 15 (3.44%) XSLT
14 12 (2.75%) PostGIS
15 11 (2.52%) Middleware
16 10 (2.29%) REST
17 8 (1.83%) .NET
18 6 (1.38%) Spring
Miscellaneous
1 36 (8.26%) Public Cloud
2 27 (6.19%) Data Centre
3 18 (4.13%) Analytical Skills
4 15 (3.44%) Web 2.0
5 11 (2.52%) Clustering
5 11 (2.52%) Computer Science
6 10 (2.29%) Management Information System
7 9 (2.06%) Private Cloud
7 9 (2.06%) Visualisation
8 8 (1.83%) PKI
9 6 (1.38%) Hybrid Cloud
9 6 (1.38%) Mobile App
10 5 (1.15%) Hedge funds
10 5 (1.15%) Replication
11 4 (0.92%) Algorithms
11 4 (0.92%) Freedom of Information
11 4 (0.92%) Freedom of Information Act
12 3 (0.69%) HP StoreVirtual
13 2 (0.46%) Mathematics
13 2 (0.46%) User Experience
Operating Systems
1 436 (100.00%) Linux
2 195 (44.72%) Red Hat Enterprise Linux
3 148 (33.94%) Ubuntu
4 67 (15.37%) Windows
5 44 (10.09%) Unix
6 30 (6.88%) Windows Server
7 17 (3.90%) SUSE
8 14 (3.21%) Debian
8 14 (3.21%) Fedora
9 13 (2.98%) RancherOS
9 13 (2.98%) VyOS
10 12 (2.75%) Windows Server 2012
11 10 (2.29%) Windows Server 2008
12 7 (1.61%) Windows Server 2003
13 6 (1.38%) Solaris
13 6 (1.38%) Windows 2000
14 2 (0.46%) Android
14 2 (0.46%) FreeBSD
14 2 (0.46%) Mac OS X
14 2 (0.46%) Mac OS X Server
Processes & Methodologies
1 292 (66.97%) DevOps
2 217 (49.77%) Agile Software Development
3 197 (45.18%) Continuous Integration
4 183 (41.97%) Configuration Management
5 138 (31.65%) Scrum
6 121 (27.75%) Continuous Delivery
7 84 (19.27%) Service Management
8 72 (16.51%) Identity Management
9 65 (14.91%) Load Balancing
10 63 (14.45%) Workflow
11 54 (12.39%) Coaching
12 53 (12.16%) Case Management
13 51 (11.70%) Stakeholder Management
14 38 (8.72%) Open Source
15 28 (6.42%) Mentoring
15 28 (6.42%) Migration
16 22 (5.05%) Continuous Deployment
17 20 (4.59%) Performance Tuning
17 20 (4.59%) SDLC
18 17 (3.90%) E-Commerce
Programming Languages
1 185 (42.43%) Ruby
2 175 (40.14%) Python
3 168 (38.53%) Bash Shell
4 103 (23.62%) Java
5 88 (20.18%) Perl
5 88 (20.18%) Shell Script
6 43 (9.86%) JavaScript
7 41 (9.40%) PHP
8 28 (6.42%) SQL
9 24 (5.50%) C
10 22 (5.05%) PowerShell
11 12 (2.75%) C#
12 10 (2.29%) Go
12 10 (2.29%) Groovy
13 6 (1.38%) R
13 6 (1.38%) Scala
14 4 (0.92%) C++
15 3 (0.69%) C-shell
16 2 (0.46%) sed
16 2 (0.46%) VB
Qualifications
1 158 (36.24%) Security Cleared
2 145 (33.26%) SC Cleared
3 33 (7.57%) CTC Cleared
4 23 (5.28%) BPSS Clearance
5 12 (2.75%) Degree
6 10 (2.29%) DV Cleared
7 6 (1.38%) AWS Certification
8 4 (0.92%) BC Cleared
8 4 (0.92%) RHCE
9 2 (0.46%) CCNP
9 2 (0.46%) Cisco Certification
9 2 (0.46%) RHCSA
10 1 (0.23%) CCNA
10 1 (0.23%) Microsoft Certification
10 1 (0.23%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 22 (5.05%) QA
2 8 (1.83%) PCI DSS
3 3 (0.69%) Disclosure Scotland
System Software
1 213 (48.85%) Docker
2 92 (21.10%) VMware Infrastructure
3 81 (18.58%) vCloud
4 76 (17.43%) Postfix
5 74 (16.97%) Squid
6 42 (9.63%) Active Directory
6 42 (9.63%) Virtual Machines
7 29 (6.65%) Xen
8 11 (2.52%) KVM
9 7 (1.61%) VMware ESX
10 4 (0.92%) DFS Replication
10 4 (0.92%) Terminal Services
10 4 (0.92%) VMware ESXi
10 4 (0.92%) vSphere
11 3 (0.69%) VirtualBox
12 2 (0.46%) NFS
12 2 (0.46%) XenServer
13 1 (0.23%) Apache ZooKeeper
13 1 (0.23%) Snort
13 1 (0.23%) Veritas Cluster Server
Systems Management
1 244 (55.96%) Puppet
2 225 (51.61%) Ansible
3 126 (28.90%) Kubernetes
4 120 (27.52%) Terraform
5 119 (27.29%) ZABBIX
6 110 (25.23%) logstash
7 106 (24.31%) Kibana
8 79 (18.12%) Rancher
9 68 (15.60%) Opscode Chef
10 48 (11.01%) HAProxy
11 26 (5.96%) Packer
12 22 (5.05%) Nagios
13 21 (4.82%) Consul
14 12 (2.75%) Salt
15 8 (1.83%) Zenoss
16 7 (1.61%) yum
17 6 (1.38%) Oracle ZFS
17 6 (1.38%) SELinux
18 5 (1.15%) SCCM
18 5 (1.15%) vRealize
Vendors
1 192 (44.04%) VMware
2 156 (35.78%) Red Hat
3 93 (21.33%) Atlassian
4 76 (17.43%) Oracle
5 74 (16.97%) Sonatype
6 24 (5.50%) AppDynamics
6 24 (5.50%) Cisco
7 13 (2.98%) EMC
7 13 (2.98%) Vyatta
8 11 (2.52%) Microsoft
8 11 (2.52%) Splunk
9 9 (2.06%) HP
10 8 (1.83%) Google
11 7 (1.61%) New Relic
11 7 (1.61%) Remedy
12 6 (1.38%) Dell
12 6 (1.38%) Trend Micro
13 5 (1.15%) ForgeRock
13 5 (1.15%) SaltStack
13 5 (1.15%) Symantec
City, London
Fruition IT Resources Limited
Rate: £400 - £490 per day
Posted: 4 days ago
West London
Reed Technology
Rate: £400 - £480 per day
Posted: 4 days ago
West London
Experis Ltd
Rate: £540.00 - £580.00 per day
Posted: 4 days ago
City, London
FT Select
Rate: From £400 to £450 per annum
Posted: 4 days ago
London
Sytel Reply
Posted: 6 days ago
London
Spring Technology
Posted: 6 days ago
City, London
Ebury
Rate: £350.00 - £400.00 per day
Posted: 5 days ago