The table below looks at the statistics for CentOS skills in IT contracts advertised for the City of London region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 28 July 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
28 Jul 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 152 199 192
Rank change year-on-year
+47 -7
Contract jobs citing CentOS 13 14 14
As % of all contract IT jobs located in the City of London 0.38% 0.24% 0.24%
As % of the Operating Systems category 1.75% 1.14% 1.08%
Number of daily rates quoted 7 13 14
Median daily rate £475 £425 £450
Median daily rate % change year-on-year
+11.76% -5.55%
90% offered a daily rate of more than £424 £345 £311
10% offered a daily rate of more than £594 £547 £550
UK excluding London median daily rate £425 £345 £350
% change year-on-year
+23.18% -1.42%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £13.50 - £16.75
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 City of London region.

Operating Systems Category
City of London
Contract IT job ads with a match in the
Operating Systems category
742 1224 1293
As % of all contract IT jobs located in the City of London 21.91% 20.62% 21.94%
Number of daily rates quoted 621 958 938
Median daily rate £450 £425 £390
Median daily rate % change year-on-year
+5.88% +8.97%
90% offered a daily rate of more than £275 £225 £180
10% offered a daily rate of more than £600 £575 £575
UK excluding London median daily rate £350 £350 £309
% change year-on-year
- +13.12%
Number of hourly rates quoted 15 46 60
Median hourly rate £15.50 £21.25 £18.50
Median hourly rate % change year-on-year
-27.05% +14.86%
90% offered a hourly rate of more than £12.50 £12.50 £12.50
10% offered a hourly rate of more than £21.78 £62.50 £32.50
UK excluding London median hourly rate £16.50 £16.50 £15.00
% change year-on-year
- +10.00%

CentOS
Jobs Demand Trend in the City of London

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

CentOS Jobs Demand Trend in the City of London

CentOS
Daily Rate Trend in the City of London

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

CentOS Daily Rate Trend in the City of London

CentOS
Daily Rate Histogram in the City of London

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the City of London region over the 3 months to 28 July 2016.

CentOS Daily Rate Histogram in the City of London

CentOS
Hourly Rate Trend in the City of London

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

CentOS Hourly Rate Trend in the City of London

CentOS
Top 30 Related IT Skills in the City of London

For the 6 months to 28 July 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 City of London region with a requirement for CentOS.

1 26 (100.00%) Linux
2 19 (73.08%) DevOps
3 16 (61.54%) Puppet
4 14 (53.85%) Continuous Integration
5 12 (46.15%) Red Hat Enterprise Linux
5 12 (46.15%) Configuration Management
5 12 (46.15%) Ansible
6 10 (38.46%) Docker
6 10 (38.46%) Jenkins
6 10 (38.46%) Opscode Chef
6 10 (38.46%) Amazon AWS
6 10 (38.46%) Red Hat
6 10 (38.46%) Python
7 9 (34.62%) Agile Software Development
7 9 (34.62%) Ruby
8 7 (26.92%) Open Source
8 7 (26.92%) JIRA
8 7 (26.92%) VMware
8 7 (26.92%) Windows
8 7 (26.92%) TCP/IP
9 6 (23.08%) Java
9 6 (23.08%) Finance
9 6 (23.08%) Confluence
10 5 (19.23%) Bash Shell
10 5 (19.23%) NoSQL
10 5 (19.23%) Kubernetes
10 5 (19.23%) Hadoop
10 5 (19.23%) Atlassian
10 5 (19.23%) Perl
10 5 (19.23%) Apache

CentOS
Top Related IT Skills in the City of 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 6 (23.08%) Confluence
2 5 (19.23%) Apache
3 4 (15.38%) OpenStack
4 3 (11.54%) Apache Spark
4 3 (11.54%) Elasticsearch
4 3 (11.54%) Zimbra
5 2 (7.69%) Tomcat
6 1 (3.85%) IIS
Applications
1 3 (11.54%) MS Excel
1 3 (11.54%) MS Office
2 2 (7.69%) HipChat
Cloud Services
1 10 (38.46%) Amazon AWS
2 4 (15.38%) Amazon EC2
3 2 (7.69%) Amazon ElastiCache
3 2 (7.69%) Amazon EMR
3 2 (7.69%) Amazon S3
3 2 (7.69%) Amazon SQS
3 2 (7.69%) CloudFront
3 2 (7.69%) Route 53
3 2 (7.69%) Virtual Private Cloud
4 1 (3.85%) AWS CloudFormation
4 1 (3.85%) AWS Elastic Beanstalk
4 1 (3.85%) Rackspace Cloud
Communications & Networking
1 7 (26.92%) TCP/IP
2 4 (15.38%) Cisco ASA
2 4 (15.38%) Firewall
2 4 (15.38%) SAN
3 2 (7.69%) Cisco Nexus
3 2 (7.69%) DNS
3 2 (7.69%) SSH
3 2 (7.69%) VPN
4 1 (3.85%) DHCP
4 1 (3.85%) Fibre Channel
4 1 (3.85%) FTP
4 1 (3.85%) HTTP
4 1 (3.85%) HTTPS
4 1 (3.85%) Internet
4 1 (3.85%) LAN
4 1 (3.85%) NAS
4 1 (3.85%) OpenLDAP
4 1 (3.85%) OpenVPN
4 1 (3.85%) SSL
4 1 (3.85%) Wi-Fi
Database & Business Intelligence
1 5 (19.23%) Hadoop
1 5 (19.23%) NoSQL
2 4 (15.38%) MongoDB
3 3 (11.54%) MySQL
4 2 (7.69%) Amazon DynamoDB
4 2 (7.69%) Amazon RDS
4 2 (7.69%) Amazon Redshift
4 2 (7.69%) Redis
5 1 (3.85%) Apache Cassandra
5 1 (3.85%) HBase
5 1 (3.85%) PostgreSQL
5 1 (3.85%) Relational Database
5 1 (3.85%) SQL Server
Development Applications
1 10 (38.46%) Jenkins
2 7 (26.92%) JIRA
3 4 (15.38%) Git (software)
4 3 (11.54%) FishEye
4 3 (11.54%) Maven
4 3 (11.54%) TeamCity
5 2 (7.69%) Atlassian Bamboo
5 2 (7.69%) Hudson
5 2 (7.69%) Sonatype Nexus
6 1 (3.85%) Ant
6 1 (3.85%) Cucumber
6 1 (3.85%) Geb
6 1 (3.85%) GitLab
6 1 (3.85%) GoCD
6 1 (3.85%) IntelliJ
6 1 (3.85%) JIRA Agile
6 1 (3.85%) JUnit
6 1 (3.85%) Liquibase
6 1 (3.85%) SonarQube
6 1 (3.85%) Spock
General
1 6 (23.08%) Finance
2 3 (11.54%) Front Office
3 2 (7.69%) Retail
4 1 (3.85%) Banking
Job Titles
1 14 (53.85%) DevOps Engineer
2 8 (30.77%) Linux/Unix DevOps
3 6 (23.08%) Linux DevOps Engineer
3 6 (23.08%) Linux Engineer
4 3 (11.54%) Broadcast Engineer
4 3 (11.54%) NoSQL Engineer
5 2 (7.69%) Applications Engineer
6 1 (3.85%) Automation Architect
6 1 (3.85%) AWS Architect
6 1 (3.85%) DevOps Administrator
6 1 (3.85%) DevOps Consultant
6 1 (3.85%) Infrastructure Architect
6 1 (3.85%) Integration Specialist
6 1 (3.85%) Java Developer
6 1 (3.85%) Lead DevOps
6 1 (3.85%) Linux Administrator
6 1 (3.85%) Linux Consultant
6 1 (3.85%) Linux DevOps Administrator
6 1 (3.85%) Unix Engineer
6 1 (3.85%) Unix Linux Engineer
Libraries, Frameworks & Software Standards
1 3 (11.54%) Web Services
2 2 (7.69%) ELK Stack
3 1 (3.85%) .NET
3 1 (3.85%) Apache Camel
3 1 (3.85%) ASP.NET
3 1 (3.85%) Grails
3 1 (3.85%) HTML
3 1 (3.85%) HTML5
3 1 (3.85%) JAX-RS
3 1 (3.85%) LAMP
3 1 (3.85%) MCollective
3 1 (3.85%) MEAN Stack
3 1 (3.85%) Node.js
3 1 (3.85%) RESTful
3 1 (3.85%) Sensu
3 1 (3.85%) Software Packaging
3 1 (3.85%) Spring
3 1 (3.85%) Spring Boot
Miscellaneous
1 3 (11.54%) Hedge funds
1 3 (11.54%) Visualisation
2 2 (7.69%) Management Information System
2 2 (7.69%) Public Cloud
3 1 (3.85%) Derivative
3 1 (3.85%) Digital Media
3 1 (3.85%) Mobile App
3 1 (3.85%) Private Cloud
Operating Systems
1 26 (100.00%) Linux
2 12 (46.15%) Red Hat Enterprise Linux
3 7 (26.92%) Windows
4 4 (15.38%) Mac OS X
4 4 (15.38%) Windows Server 2003
4 4 (15.38%) Windows Server 2008
4 4 (15.38%) Windows Server 2012
5 3 (11.54%) Windows 7
5 3 (11.54%) Windows 8
6 2 (7.69%) Debian
6 2 (7.69%) Fedora
6 2 (7.69%) Ubuntu
6 2 (7.69%) Unix
6 2 (7.69%) Windows Server
7 1 (3.85%) CoreOS
7 1 (3.85%) SUSE
Processes & Methodologies
1 19 (73.08%) DevOps
2 14 (53.85%) Continuous Integration
3 12 (46.15%) Configuration Management
4 9 (34.62%) Agile Software Development
5 7 (26.92%) Open Source
6 5 (19.23%) E-Commerce
7 4 (15.38%) Continuous Delivery
8 3 (11.54%) Broadcast Engineering
8 3 (11.54%) Scrum
8 3 (11.54%) Service Delivery
8 3 (11.54%) Service Design
8 3 (11.54%) Systematic Trading
9 2 (7.69%) Load Balancing
9 2 (7.69%) Migration
9 2 (7.69%) Release Management
10 1 (3.85%) Asset Management
10 1 (3.85%) Data Protection
10 1 (3.85%) Kanban
10 1 (3.85%) Scalability Testing
10 1 (3.85%) Web Development
Programming Languages
1 10 (38.46%) Python
2 9 (34.62%) Ruby
3 6 (23.08%) Java
4 5 (19.23%) Bash Shell
4 5 (19.23%) Perl
5 4 (15.38%) PHP
6 3 (11.54%) SQL
7 2 (7.69%) JavaScript
8 1 (3.85%) AWK
8 1 (3.85%) C#
8 1 (3.85%) Go
8 1 (3.85%) Groovy
8 1 (3.85%) PowerShell
8 1 (3.85%) sed
8 1 (3.85%) Shell Script
Qualifications
1 3 (11.54%) CCNA
1 3 (11.54%) Cisco Certification
1 3 (11.54%) Degree
1 3 (11.54%) MCSE
1 3 (11.54%) MCTS
1 3 (11.54%) Microsoft Certification
1 3 (11.54%) SC Cleared
1 3 (11.54%) Security Cleared
2 1 (3.85%) CTC Cleared
Quality Assurance & Compliance
1 3 (11.54%) SLA
2 1 (3.85%) Disclosure Scotland
2 1 (3.85%) QA
System Software
1 10 (38.46%) Docker
2 4 (15.38%) Active Directory
3 3 (11.54%) VMware Infrastructure
4 1 (3.85%) etcd
4 1 (3.85%) flannel
4 1 (3.85%) KVM
4 1 (3.85%) oVirt
4 1 (3.85%) Postfix
4 1 (3.85%) Samba
4 1 (3.85%) Squid
4 1 (3.85%) StorNext
4 1 (3.85%) vCloud
4 1 (3.85%) VMware ESXi
Systems Management
1 16 (61.54%) Puppet
2 12 (46.15%) Ansible
3 10 (38.46%) Opscode Chef
4 5 (19.23%) Kubernetes
5 3 (11.54%) Oracle ZFS
6 2 (7.69%) Kibana
6 2 (7.69%) logstash
6 2 (7.69%) Terraform
6 2 (7.69%) ZABBIX
7 1 (3.85%) Cobbler
7 1 (3.85%) Consul
7 1 (3.85%) Grafana
7 1 (3.85%) Nagios
7 1 (3.85%) Pingdom
7 1 (3.85%) Rancher
7 1 (3.85%) Salt
7 1 (3.85%) yum
Vendors
1 10 (38.46%) Red Hat
2 7 (26.92%) VMware
3 5 (19.23%) Atlassian
3 5 (19.23%) Cisco
3 5 (19.23%) Dell
4 3 (11.54%) Adobe
4 3 (11.54%) Kaspersky
5 2 (7.69%) Aspera
5 2 (7.69%) Fortinet
5 2 (7.69%) Juniper
6 1 (3.85%) Apple
6 1 (3.85%) F5
6 1 (3.85%) HP
6 1 (3.85%) Microsoft
6 1 (3.85%) New Relic
6 1 (3.85%) QNAP
6 1 (3.85%) Rackspace
6 1 (3.85%) SaltStack
6 1 (3.85%) Sonatype
6 1 (3.85%) Splunk
City of London
Computer Futures
Rate: competitive
Posted: 6 days ago