The following table provides summary statistics for contract job vacancies advertised in Middlesex with a requirement for Linux skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Linux over the 3 months to 29 March 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Linux
South East / Middlesex
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 12 10 12
Rank change year-on-year -2 +2  
Contract jobs citing Linux 9 14 11
As % of all contract IT jobs advertised in Middlesex 7.20% 8.92% 6.88%
As % of the Operating Systems category 42.86% 53.85% 57.89%
Number of daily rates quoted 6 5 3
Median daily rate £283 £400 £345
Median daily rate % change year-on-year -29.37% +15.94%  
90% offered a daily rate of more than £210 £365 £269
10% offered a daily rate of more than £489 £526 £389
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 0 9 0
Median hourly rate - £44.00 -
UK excluding London median hourly rate £38.75 £43.00 £36.00
% change year-on-year -9.88% +19.44%  

Linux is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Middlesex with a requirement for operating system skills.

Contract Operating System Skills
Middlesex
Contract job vacancies with a requirement for operating system skills 21 26 19
As % of all contract IT job vacancies advertised in Middlesex 16.80% 16.56% 11.88%
Number of daily rates quoted 12 13 9
Median daily rate £350 £388 £350
Median daily rate % change year-on-year -9.67% +10.71%  
90% offered a daily rate of more than £232 £152 £275
10% offered a daily rate of more than £550 £500 £450
UK excluding London median daily rate £385 £365 £338
% change year-on-year +5.47% +8.14%  
Number of hourly rates quoted 0 9 0
Median hourly rate - £44.00 -
UK excluding London median hourly rate £15.25 £16.50 £15.50
% change year-on-year -7.57% +6.45%  

Linux
Job Vacancy Trend in Middlesex

The job posting trend of jobs advertised in Middlesex citing Linux as a proportion of all contract or permanent IT jobs with a match in the Operating Systems category.

Job vacancy trend for Linux in Middlesex

Linux
Contractor Daily Rate Trend in Middlesex

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Linux in Middlesex.

Contractor daily rate trend for Linux in Middlesex

Linux
Contractor Daily Rate Histogram in Middlesex

The daily rate distribution of IT jobs citing Linux in Middlesex over the 3 months to 29 March 2017.

Contractor daily rate histogram for Linux in Middlesex

Linux
Contractor Hourly Rate Trend in Middlesex

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Linux in Middlesex.

Contractor hourly rate trend for Linux in Middlesex

For the 6 months to 29 March 2017, IT contractor jobs citing Linux 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 Middlesex region with a requirement for Linux.

1 10 (58.82%) Amazon AWS
2 8 (47.06%) DevOps
2 8 (47.06%) Python
3 7 (41.18%) Puppet
4 6 (35.29%) Jenkins
4 6 (35.29%) Opscode Chef
4 6 (35.29%) Configuration Management
4 6 (35.29%) SQL
4 6 (35.29%) Virtual Team
5 5 (29.41%) Continuous Deployment
5 5 (29.41%) Java
5 5 (29.41%) Perl
5 5 (29.41%) Degree
5 5 (29.41%) Ansible
5 5 (29.41%) GitHub
5 5 (29.41%) Continuous Integration
5 5 (29.41%) Security Cleared
6 4 (23.53%) SC Cleared
6 4 (23.53%) ZABBIX
6 4 (23.53%) Computer Science
6 4 (23.53%) OpenStack
6 4 (23.53%) Rackspace
6 4 (23.53%) StatsD
6 4 (23.53%) Sensu
6 4 (23.53%) logstash
6 4 (23.53%) Elasticsearch
6 4 (23.53%) Gradle
6 4 (23.53%) Graphite
6 4 (23.53%) InfluxDB
6 4 (23.53%) Salt

Linux
Co-occurring IT Skills in Middlesex 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 4 (23.53%) Elasticsearch
1 4 (23.53%) OpenStack
Applications
1 1 (5.88%) MS Excel
Cloud Services
1 10 (58.82%) Amazon AWS
2 5 (29.41%) GitHub
3 2 (11.76%) Microsoft Azure
4 1 (5.88%) Amazon S3
4 1 (5.88%) AWS CloudFormation
4 1 (5.88%) Virtual Private Cloud
Communications & Networking
1 3 (17.65%) Wireshark
2 2 (11.76%) DVB
2 2 (11.76%) HTTP
Database & Business Intelligence
1 4 (23.53%) InfluxDB
2 3 (17.65%) SQL Server
3 2 (11.76%) Big Data
3 2 (11.76%) Ingres
3 2 (11.76%) NoSQL
3 2 (11.76%) SAP HANA
4 1 (5.88%) MySQL
Development Applications
1 6 (35.29%) Jenkins
2 4 (23.53%) Ant
2 4 (23.53%) Gradle
2 4 (23.53%) Maven
3 3 (17.65%) Fiddler
4 2 (11.76%) Git (software)
5 1 (5.88%) Mockito
General
1 3 (17.65%) Advertising
2 2 (11.76%) Telecoms
Job Titles
1 3 (17.65%) Developer
1 3 (17.65%) DevOps Engineer
1 3 (17.65%) Systems Engineer
2 2 (11.76%) Administrator
2 2 (11.76%) C++ Developer
2 2 (11.76%) Cloud Engineer
2 2 (11.76%) DevOps Systems Engineer
2 2 (11.76%) SAP Engineer
3 1 (5.88%) AWS DevOps
3 1 (5.88%) C Developer
3 1 (5.88%) C/C++ Developer
3 1 (5.88%) Cloud Administrator
3 1 (5.88%) Embedded C Developer
3 1 (5.88%) Embedded Developer
3 1 (5.88%) Embedded Engineer
3 1 (5.88%) Integration Engineer
3 1 (5.88%) Lead DevOps
3 1 (5.88%) Linux Administrator
3 1 (5.88%) Linux Systems Administrator
3 1 (5.88%) System Design Authority
Libraries, Frameworks & Software Standards
1 4 (23.53%) Sensu
1 4 (23.53%) Web Services
2 2 (11.76%) HTML
2 2 (11.76%) HTML5
2 2 (11.76%) Node.js
2 2 (11.76%) REST
2 2 (11.76%) SAP Basis
3 1 (5.88%) JMS
3 1 (5.88%) SOAP
3 1 (5.88%) Spring
3 1 (5.88%) Spring Boot
3 1 (5.88%) Spring MVC
3 1 (5.88%) Spring Security
3 1 (5.88%) STL
Miscellaneous
1 6 (35.29%) Virtual Team
2 4 (23.53%) Computer Science
3 3 (17.65%) Over-the-Top Content
4 2 (11.76%) Digital TV
4 2 (11.76%) MPEG
4 2 (11.76%) STB
5 1 (5.88%) Management Information System
5 1 (5.88%) PlayStation
5 1 (5.88%) Xbox
Operating Systems
1 4 (23.53%) Unix
2 2 (11.76%) SUSE
3 1 (5.88%) CentOS
3 1 (5.88%) Red Hat Enterprise Linux
3 1 (5.88%) Ubuntu
3 1 (5.88%) Windows
3 1 (5.88%) Windows 7
3 1 (5.88%) Windows Server
3 1 (5.88%) Windows Server 2008
3 1 (5.88%) Windows Server 2012
Processes & Methodologies
1 8 (47.06%) DevOps
2 6 (35.29%) Configuration Management
3 5 (29.41%) Continuous Deployment
3 5 (29.41%) Continuous Integration
4 4 (23.53%) Agile Software Development
4 4 (23.53%) Software Delivery
5 3 (17.65%) Scrum
5 3 (17.65%) TDD
6 2 (11.76%) Mentoring
6 2 (11.76%) Operational Acceptance Testing
6 2 (11.76%) Project Management
6 2 (11.76%) SOA
6 2 (11.76%) Virtual Team Management
7 1 (5.88%) BDD
7 1 (5.88%) Data Migration
7 1 (5.88%) ITIL V3
7 1 (5.88%) Kanban
7 1 (5.88%) PRINCE
7 1 (5.88%) Software Architecture
7 1 (5.88%) User Stories
Programming Languages
1 8 (47.06%) Python
2 6 (35.29%) SQL
3 5 (29.41%) Java
3 5 (29.41%) Perl
4 4 (23.53%) Ruby
5 3 (17.65%) Bash Shell
5 3 (17.65%) C++
6 2 (11.76%) C
7 1 (5.88%) PowerShell
Qualifications
1 5 (29.41%) Degree
1 5 (29.41%) Security Cleared
2 4 (23.53%) SC Cleared
3 1 (5.88%) DV Cleared
Quality Assurance & Compliance
1 1 (5.88%) JSP 440
System Software
1 1 (5.88%) Active Directory
1 1 (5.88%) Docker
1 1 (5.88%) Virtual Machines
1 1 (5.88%) VMware Infrastructure
1 1 (5.88%) vSphere
Systems Management
1 7 (41.18%) Puppet
2 6 (35.29%) Opscode Chef
3 5 (29.41%) Ansible
4 4 (23.53%) Fluentd
4 4 (23.53%) Graphite
4 4 (23.53%) logstash
4 4 (23.53%) Salt
4 4 (23.53%) StatsD
4 4 (23.53%) ZABBIX
Vendors
1 4 (23.53%) Rackspace
2 2 (11.76%) Oracle
2 2 (11.76%) SAP
2 2 (11.76%) Sybase
3 1 (5.88%) Google
3 1 (5.88%) Microsoft
3 1 (5.88%) Red Hat
3 1 (5.88%) SaltStack
3 1 (5.88%) VMware