The following table provides summary statistics for permanent job vacancies advertised in Welwyn Garden City with a requirement for SAN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited SAN over the 3 months to 23 June 2017 with a comparison to the same period in the previous 2 years.

Storage Area Network (SAN)
Hertfordshire / Welwyn Garden City
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 19 12 8
Rank change year-on-year -7 -4  
Permanent jobs citing SAN 8 13 26
As % of all permanent IT jobs advertised in Welwyn Garden City 6.45% 15.12% 17.22%
As % of the Communications & Networking category 27.59% 44.83% 34.67%
Number of salaries quoted 7 13 17
Median salary £32,000 £55,000 £50,000
Median salary % change year-on-year -41.81% +10.00%  
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +6.25%  

SAN is in the communications and computer networking 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 communications and computer networking skills.

Communications & Computer Network Skills
Welwyn Garden City
Permanent job vacancies with a requirement for communications and computer networking skills 29 29 75
As % of all permanent IT job vacancies advertised in Welwyn Garden City 23.39% 33.72% 49.67%
Number of salaries quoted 24 28 41
Median salary £32,000 £46,500 £45,000
Median salary % change year-on-year -31.18% +3.33%  
UK excluding London median salary £42,500 £42,500 £42,500

SAN
Job Vacancy Trend in Welwyn Garden City

The job posting trend of jobs advertised in Welwyn Garden City citing SAN as a proportion of all permanent or contract IT jobs with a match in the Communications & Networking category.

Job vacancy trend for SAN in Welwyn Garden City

SAN
Salary Trend in Welwyn Garden City

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

Salary trend for SAN in Welwyn Garden City

SAN
Salary Histogram in Welwyn Garden City

The salary distribution of IT jobs citing SAN in Welwyn Garden City over the 3 months to 23 June 2017.

Salary histogram for SAN in Welwyn Garden City

For the 6 months to 23 June 2017, IT jobs citing SAN 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 SAN.

1 21 (100.00%) Windows
2 20 (95.24%) SQL Server
3 18 (85.71%) SQL
4 15 (71.43%) Active Directory
5 14 (66.67%) LAMP
5 14 (66.67%) Marketing
5 14 (66.67%) CentOS
5 14 (66.67%) Red Hat Enterprise Linux
5 14 (66.67%) IIS
5 14 (66.67%) Red Hat
5 14 (66.67%) Linux
6 12 (57.14%) Open Source
7 7 (33.33%) vSphere
7 7 (33.33%) Windows Server
7 7 (33.33%) VMware Infrastructure
7 7 (33.33%) VMware
8 6 (28.57%) Military
8 6 (28.57%) NetApp
8 6 (28.57%) ISO/IEC 27001
8 6 (28.57%) Degree
8 6 (28.57%) Document Management
8 6 (28.57%) Client/Server
8 6 (28.57%) ISO 9001
8 6 (28.57%) VPN
8 6 (28.57%) SLA
8 6 (28.57%) IBM
8 6 (28.57%) Microsoft
8 6 (28.57%) Adobe
8 6 (28.57%) Disaster Recovery
8 6 (28.57%) Back Office

SAN
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 14 (66.67%) IIS
2 6 (28.57%) CMS
Communications & Networking
1 6 (28.57%) VPN
2 1 (4.76%) NAS
Database & Business Intelligence
1 20 (95.24%) SQL Server
2 6 (28.57%) MySQL
General
1 14 (66.67%) Marketing
2 6 (28.57%) Back Office
2 6 (28.57%) Finance
2 6 (28.57%) Military
Job Titles
1 14 (66.67%) Administrator
1 14 (66.67%) Linux Administrator
1 14 (66.67%) Linux Systems Administrator
1 14 (66.67%) Systems Administrator
2 6 (28.57%) Infrastructure Specialist
3 1 (4.76%) Infrastructure Engineer
3 1 (4.76%) Senior Infrastructure Engineer
3 1 (4.76%) Senior Linux Administrator
3 1 (4.76%) Senior Linux Systems Administrator
3 1 (4.76%) Senior Systems Administrator
Libraries, Frameworks & Software Standards
1 14 (66.67%) LAMP
Miscellaneous
1 6 (28.57%) Client/Server
Operating Systems
1 21 (100.00%) Windows
2 14 (66.67%) CentOS
2 14 (66.67%) Linux
2 14 (66.67%) Red Hat Enterprise Linux
3 7 (33.33%) Windows Server
4 6 (28.57%) Unix
5 1 (4.76%) Windows 10
Processes & Methodologies
1 12 (57.14%) Open Source
2 6 (28.57%) Disaster Recovery
2 6 (28.57%) Document Management
2 6 (28.57%) Network Management
2 6 (28.57%) Process Improvement
3 1 (4.76%) Continuous Delivery
3 1 (4.76%) Mentoring
Programming Languages
1 18 (85.71%) SQL
Qualifications
1 6 (28.57%) Degree
Quality Assurance & Compliance
1 6 (28.57%) ISO 9001
1 6 (28.57%) ISO/IEC 27001
1 6 (28.57%) SLA
System Software
1 15 (71.43%) Active Directory
2 7 (33.33%) VMware Infrastructure
2 7 (33.33%) vSphere
Vendors
1 14 (66.67%) Red Hat
2 7 (33.33%) VMware
3 6 (28.57%) Adobe
3 6 (28.57%) IBM
3 6 (28.57%) Microsoft
3 6 (28.57%) NetApp
3 6 (28.57%) Oracle
3 6 (28.57%) Xerox