The following table provides summary statistics for permanent job vacancies advertised in the M4 Corridor with a requirement for Linux skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Linux over the 3 months to 28 March 2017 with a comparison to the same period in the previous 2 years.

Linux
South East / M4 Corridor
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 4 3 1
Rank change year-on-year -1 -2  
Permanent jobs citing Linux 1 2 6
As % of all permanent IT jobs advertised in the M4 Corridor 16.67% 25.00% 42.86%
As % of the Operating Systems category 100.00% 100.00% 66.67%
Number of salaries quoted 0 2 6
Median salary - £75,000 £57,500
Median salary % change year-on-year - +30.43%  
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

Linux is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the M4 Corridor with a requirement for operating system skills.

Operating System Skills
M4 Corridor
Permanent job vacancies with a requirement for operating system skills 1 2 9
As % of all permanent IT job vacancies advertised in the M4 Corridor 16.67% 25.00% 64.29%
Number of salaries quoted 0 2 9
Median salary - £75,000 £57,500
Median salary % change year-on-year - +30.43%  
UK excluding London median salary £37,500 £37,500 £37,500

Linux
Job Vacancy Trend in the M4 Corridor

The job posting trend of jobs advertised in the M4 Corridor citing Linux as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for Linux in the M4 Corridor

Linux
Salary Trend in the M4 Corridor

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Linux in the M4 Corridor.

Salary trend for Linux in the M4 Corridor

Linux
Top 30 Co-occurring IT Skills in the M4 Corridor

For the 6 months to 28 March 2017, IT jobs citing Linux also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the M4 Corridor region with a requirement for Linux.

1 4 (100.00%) Windows
2 3 (75.00%) EAI
2 3 (75.00%) SOA
2 3 (75.00%) IBM
2 3 (75.00%) Java
2 3 (75.00%) WebSphere Application Server
2 3 (75.00%) SOAP
2 3 (75.00%) Web Services
2 3 (75.00%) XML
2 3 (75.00%) XSD
2 3 (75.00%) XSLT
2 3 (75.00%) WebSphere MQ
2 3 (75.00%) Middleware
2 3 (75.00%) WebSphere
2 3 (75.00%) REST
2 3 (75.00%) IBM Integration Bus
2 3 (75.00%) DataPower
3 1 (25.00%) WinDbg
3 1 (25.00%) tcpdump
3 1 (25.00%) Reverse Engineering
3 1 (25.00%) Regular Expression
3 1 (25.00%) Cybersecurity
3 1 (25.00%) Technical Analysis
3 1 (25.00%) Malware Analysis
3 1 (25.00%) Burp Suite
3 1 (25.00%) Malware Reverse Engineering
3 1 (25.00%) Wireshark
3 1 (25.00%) Blog
3 1 (25.00%) C
3 1 (25.00%) C++

Linux
Co-occurring IT Skills in the M4 Corridor 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 3 (75.00%) WebSphere
1 3 (75.00%) WebSphere Application Server
Communications & Networking
1 1 (25.00%) tcpdump
1 1 (25.00%) Wireshark
Development Applications
1 1 (25.00%) Burp Suite
1 1 (25.00%) WinDbg
Job Titles
1 3 (75.00%) Developer
1 3 (75.00%) Java Developer
1 3 (75.00%) XML Developer
2 1 (25.00%) Malware Researcher
Libraries, Frameworks & Software Standards
1 3 (75.00%) IBM Integration Bus
1 3 (75.00%) Middleware
1 3 (75.00%) REST
1 3 (75.00%) SOAP
1 3 (75.00%) Web Services
1 3 (75.00%) WebSphere MQ
1 3 (75.00%) XML
1 3 (75.00%) XSD
1 3 (75.00%) XSLT
2 1 (25.00%) Regular Expression
Miscellaneous
1 3 (75.00%) DataPower
2 1 (25.00%) Blog
Operating Systems
1 4 (100.00%) Windows
Processes & Methodologies
1 3 (75.00%) EAI
1 3 (75.00%) SOA
2 1 (25.00%) Cryptography
2 1 (25.00%) Cybersecurity
2 1 (25.00%) Malware Analysis
2 1 (25.00%) Malware Reverse Engineering
2 1 (25.00%) Reverse Engineering
2 1 (25.00%) Technical Analysis
Programming Languages
1 3 (75.00%) Java
2 1 (25.00%) C
2 1 (25.00%) C++
Vendors
1 3 (75.00%) IBM
2 1 (25.00%) Microsoft