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

Open Source
Hertfordshire / Welwyn Garden City
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 11 12 32
Rank change year-on-year +1 +20  
Permanent jobs citing Open Source 11 7 2
As % of all permanent IT jobs advertised in Welwyn Garden City 11.46% 10.77% 1.85%
As % of the Processes & Methodologies category 13.92% 11.29% 2.04%
Number of salaries quoted 11 7 1
Median salary £45,000 £100,000 £65,000
Median salary % change year-on-year -55.00% +53.84%  
UK excluding London median salary £45,000 £45,000 £45,000

Open Source is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Welwyn Garden City with a requirement for process and methodology skills.

Process & Methodology Skills
Welwyn Garden City
Permanent job vacancies with a requirement for process and methodology skills 79 62 98
As % of all permanent IT job vacancies advertised in Welwyn Garden City 82.29% 95.38% 90.74%
Number of salaries quoted 68 53 56
Median salary £50,000 £52,500 £40,000
Median salary % change year-on-year -4.76% +31.25%  
90% offered a salary of more than £27,500 £35,000 £29,000
10% offered a salary of more than £72,500 £60,000 £90,000
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

Open Source
Job Vacancy Trend in Welwyn Garden City

The job posting trend of jobs advertised in Welwyn Garden City citing Open Source as a proportion of all permanent or contract IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for Open Source in Welwyn Garden City

Open Source
Salary Trend in Welwyn Garden City

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Open Source in Welwyn Garden City.

Salary trend for Open Source in Welwyn Garden City

For the 6 months to 28 March 2017, IT jobs citing Open Source 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 Welwyn Garden City region with a requirement for Open Source.

1 12 (100.00%) SQL
1 12 (100.00%) SQL Server
1 12 (100.00%) IIS
1 12 (100.00%) Windows
1 12 (100.00%) Linux
1 12 (100.00%) Active Directory
1 12 (100.00%) SAN
1 12 (100.00%) Red Hat
1 12 (100.00%) LAMP
1 12 (100.00%) Marketing
1 12 (100.00%) CentOS
1 12 (100.00%) Red Hat Enterprise Linux

Open Source
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 12 (100.00%) IIS
Communications & Networking
1 12 (100.00%) SAN
Database & Business Intelligence
1 12 (100.00%) SQL Server
General
1 12 (100.00%) Marketing
Job Titles
1 12 (100.00%) Administrator
1 12 (100.00%) Linux Administrator
1 12 (100.00%) Linux Systems Administrator
1 12 (100.00%) Systems Administrator
2 1 (8.33%) Senior Linux Administrator
2 1 (8.33%) Senior Linux Systems Administrator
2 1 (8.33%) Senior Systems Administrator
Libraries, Frameworks & Software Standards
1 12 (100.00%) LAMP
Operating Systems
1 12 (100.00%) CentOS
1 12 (100.00%) Linux
1 12 (100.00%) Red Hat Enterprise Linux
1 12 (100.00%) Windows
Programming Languages
1 12 (100.00%) SQL
System Software
1 12 (100.00%) Active Directory
Vendors
1 12 (100.00%) Red Hat