The following table provides summary statistics for contract job vacancies advertised in Welwyn Garden City 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 25 April 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
Hertfordshire / Welwyn Garden City
3 months to
25 Apr 2017
Same period 2016 Same period 2015
Rank 6 - 1
Rank change year-on-year - 0  
Contract jobs citing Linux 7 0 10
As % of all contract IT jobs advertised in Welwyn Garden City 12.07% - 27.78%
As % of the Operating Systems category 43.75% - 50.00%
Number of daily rates quoted 3 0 6
Median daily rate £330 - £330
90% offered a daily rate of more than £326 - £293
10% offered a daily rate of more than £526 - £375
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £38.88 £42.38 £36.50
% change year-on-year -8.25% +16.09%  

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 Welwyn Garden City with a requirement for operating system skills.

Contract Operating System Skills
Welwyn Garden City
Contract job vacancies with a requirement for operating system skills 16 16 20
As % of all contract IT job vacancies advertised in Welwyn Garden City 27.59% 23.88% 55.56%
Number of daily rates quoted 6 6 8
Median daily rate £450 £400 £330
Median daily rate % change year-on-year +12.50% +21.21%  
90% offered a daily rate of more than £325 £220 £275
10% offered a daily rate of more than £650 £425 £375
UK excluding London median daily rate £385 £363 £340
% change year-on-year +6.20% +6.61%  
Number of hourly rates quoted 1 2 0
Median hourly rate £13.00 £16.00 -
Median hourly rate % change year-on-year -18.75% -  
UK excluding London median hourly rate £15.50 £16.50 £15.50
% change year-on-year -6.06% +6.45%  

Linux
Job Vacancy Trend in Welwyn Garden City

The job posting trend of jobs advertised in Welwyn Garden City 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 Welwyn Garden City

Linux
Contractor Daily Rate Trend in Welwyn Garden City

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

Contractor daily rate trend for Linux in Welwyn Garden City

Linux
Contractor Daily Rate Histogram in Welwyn Garden City

The daily rate distribution of IT jobs citing Linux in Welwyn Garden City over the 3 months to 25 April 2017.

Contractor daily rate histogram for Linux in Welwyn Garden City

Linux
Contractor Hourly Rate Trend in Welwyn Garden City

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

Contractor hourly rate trend for Linux in Welwyn Garden City

For the 6 months to 25 April 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 Welwyn Garden City region with a requirement for Linux.

1 14 (73.68%) SQL
2 13 (68.42%) Python
3 12 (63.16%) Windows
4 11 (57.89%) Perl
4 11 (57.89%) Java
5 10 (52.63%) Apache
5 10 (52.63%) Tomcat
5 10 (52.63%) PostgreSQL
5 10 (52.63%) Ruby
5 10 (52.63%) Bash Shell
5 10 (52.63%) LAPP Stack
6 9 (47.37%) Clustering
6 9 (47.37%) Firewall
6 9 (47.37%) TCP/IP
6 9 (47.37%) SSL
7 7 (36.84%) Unix
7 7 (36.84%) Puppet
8 6 (31.58%) DevOps
8 6 (31.58%) MySQL
8 6 (31.58%) EFT
9 5 (26.32%) C
9 5 (26.32%) Finance
9 5 (26.32%) LAMP
9 5 (26.32%) Software Engineering
10 4 (21.05%) Banking
10 4 (21.05%) FTP
10 4 (21.05%) Internet
11 3 (15.79%) Active Directory
11 3 (15.79%) QA
11 3 (15.79%) Technical Analysis

Linux
Co-occurring IT Skills in Welwyn Garden City 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 10 (52.63%) Apache
1 10 (52.63%) Tomcat
2 1 (5.26%) Elasticsearch
2 1 (5.26%) nginx
Business Applications
1 1 (5.26%) Payment Gateway
Communications & Networking
1 9 (47.37%) Firewall
1 9 (47.37%) SSL
1 9 (47.37%) TCP/IP
2 4 (21.05%) FTP
2 4 (21.05%) Internet
3 1 (5.26%) ATM
3 1 (5.26%) LAN
3 1 (5.26%) WAN
3 1 (5.26%) Wireless
3 1 (5.26%) WLAN
Database & Business Intelligence
1 10 (52.63%) PostgreSQL
2 6 (31.58%) MySQL
3 1 (5.26%) NoSQL
3 1 (5.26%) Redis
Development Applications
1 1 (5.26%) Git (software)
1 1 (5.26%) Vagrant
General
1 5 (26.32%) Finance
2 4 (21.05%) Banking
3 2 (10.53%) Financial Institution
3 2 (10.53%) Retail
4 1 (5.26%) Retail Banking
Job Titles
1 6 (31.58%) DevOps Engineer
2 4 (21.05%) Service Desk Engineer
2 4 (21.05%) Software Engineer
3 3 (15.79%) Applications Support
3 3 (15.79%) Support Engineer
4 2 (10.53%) Applications Engineer
4 2 (10.53%) Applications Support Engineer
4 2 (10.53%) Service Desk Support
4 2 (10.53%) Software Support Engineer
4 2 (10.53%) Systems Engineer
5 1 (5.26%) Analyst
5 1 (5.26%) Applications Support Analyst
5 1 (5.26%) Architect
5 1 (5.26%) Dashboard Engineer
5 1 (5.26%) DevOps Systems Engineer
5 1 (5.26%) Electronics Engineer
5 1 (5.26%) Infrastructure Engineer
5 1 (5.26%) Linux Engineer
5 1 (5.26%) Splunk Engineer
5 1 (5.26%) Support Analyst
Libraries, Frameworks & Software Standards
1 10 (52.63%) LAPP Stack
2 5 (26.32%) LAMP
3 1 (5.26%) CSS
3 1 (5.26%) HTML
3 1 (5.26%) JSON
3 1 (5.26%) LEMP Stack
3 1 (5.26%) Pyramid
3 1 (5.26%) REST
Miscellaneous
1 9 (47.37%) Clustering
2 6 (31.58%) EFT
3 2 (10.53%) Analytical Skills
3 2 (10.53%) Computer Science
4 1 (5.26%) Data Centre
4 1 (5.26%) EPoS
4 1 (5.26%) Linux Command Line
Operating Systems
1 12 (63.16%) Windows
2 7 (36.84%) Unix
3 1 (5.26%) Windows Server 2008
Processes & Methodologies
1 6 (31.58%) DevOps
2 5 (26.32%) Software Engineering
3 3 (15.79%) Technical Analysis
4 2 (10.53%) Configuration Management
4 2 (10.53%) High Availability
5 1 (5.26%) Compliance Management
5 1 (5.26%) Data Modelling
5 1 (5.26%) Data Protection
5 1 (5.26%) Incident Management
5 1 (5.26%) Performance Management
5 1 (5.26%) Portfolio Management
5 1 (5.26%) Risk and Compliance Management
5 1 (5.26%) Security Architecture
5 1 (5.26%) Security Monitoring
5 1 (5.26%) TDD
5 1 (5.26%) Threat Intelligence
5 1 (5.26%) Use Case
5 1 (5.26%) User Acceptance Testing
5 1 (5.26%) Vulnerability Management
Programming Languages
1 14 (73.68%) SQL
2 13 (68.42%) Python
3 11 (57.89%) Java
3 11 (57.89%) Perl
4 10 (52.63%) Bash Shell
4 10 (52.63%) Ruby
5 5 (26.32%) C
6 2 (10.53%) C++
7 1 (5.26%) Go
7 1 (5.26%) JavaScript
7 1 (5.26%) Lua
7 1 (5.26%) PowerShell
Qualifications
1 2 (10.53%) RHCE
Quality Assurance & Compliance
1 3 (15.79%) QA
2 1 (5.26%) ISO/IEC 27001
2 1 (5.26%) PCI DSS
System Software
1 3 (15.79%) Active Directory
2 2 (10.53%) Docker
Systems Management
1 7 (36.84%) Puppet
2 2 (10.53%) Salt
Vendors
1 1 (5.26%) Cisco
1 1 (5.26%) Dell
1 1 (5.26%) HP
1 1 (5.26%) Microsoft
1 1 (5.26%) PayPal
1 1 (5.26%) Splunk
1 1 (5.26%) Toshiba