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

Assymetrical Digital Subscriber Line (ADSL)
London / City of London
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 234 257 306
Rank change year-on-year +23 +49  
Permanent jobs citing ADSL 1 1 9
As % of all permanent IT jobs advertised in the City of London 0.019% 0.016% 0.087%
As % of the Communications & Networking category 0.12% 0.095% 0.58%
Number of salaries quoted 1 1 9
Median salary £27,500 £28,500 £32,500
Median salary % change year-on-year -3.50% -12.30%  
UK excluding London median salary £30,000 £28,500 £26,500
% change year-on-year +5.26% +7.54%  

ADSL 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 the City of London with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
City of London
Permanent job vacancies with a requirement for communications and computer networking skills 846 1051 1544
As % of all permanent IT job vacancies advertised in the City of London 16.25% 16.56% 14.86%
Number of salaries quoted 745 916 1338
Median salary £55,000 £55,000 £53,000
Median salary % change year-on-year - +3.77%  
90% offered a salary of more than £29,000 £33,000 £32,500
10% offered a salary of more than £75,000 £75,000 £71,000
UK excluding London median salary £42,500 £42,500 £42,500

ADSL
Job Vacancy Trend in the City of London

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

Job vacancy trend for ADSL in the City of London

ADSL
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ADSL in the City of London.

Salary trend for ADSL in the City of London

For the 6 months to 23 June 2017, IT jobs citing ADSL 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 City of London region with a requirement for ADSL.

1 5 (100.00%) Microsoft Office
1 5 (100.00%) Windows
1 5 (100.00%) MS Exchange
1 5 (100.00%) TCP/IP
1 5 (100.00%) VPN
1 5 (100.00%) Active Directory
1 5 (100.00%) Firewall
1 5 (100.00%) Windows 10
1 5 (100.00%) Windows Server
2 4 (80.00%) Palo Alto
2 4 (80.00%) Skype for Business
2 4 (80.00%) XenMobile
2 4 (80.00%) Analytical Skills
2 4 (80.00%) Driving Licence
2 4 (80.00%) XenServer
2 4 (80.00%) Veeam
2 4 (80.00%) HP
2 4 (80.00%) EMC
2 4 (80.00%) Citrix
2 4 (80.00%) SAN
2 4 (80.00%) Windows Server 2003
2 4 (80.00%) DSL
2 4 (80.00%) VMware
2 4 (80.00%) Backup Exec
2 4 (80.00%) Exchange Server 2007
2 4 (80.00%) IronPort
2 4 (80.00%) Polycom
2 4 (80.00%) VMware Infrastructure
2 4 (80.00%) Cisco ASA
2 4 (80.00%) DNS

ADSL
Co-occurring IT Skills in the City of London 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 5 (100.00%) MS Exchange
2 4 (80.00%) Exchange Server 2007
2 4 (80.00%) Skype for Business
3 1 (20.00%) Exchange Server 2010
Applications
1 5 (100.00%) Microsoft Office
Communications & Networking
1 5 (100.00%) Firewall
1 5 (100.00%) TCP/IP
1 5 (100.00%) VPN
2 4 (80.00%) Cisco ASA
2 4 (80.00%) DHCP
2 4 (80.00%) DNS
2 4 (80.00%) DSL
2 4 (80.00%) SAN
2 4 (80.00%) VoIP
3 1 (20.00%) FTP
3 1 (20.00%) HTTP
3 1 (20.00%) HTTPS
3 1 (20.00%) Internet
3 1 (20.00%) LAN
3 1 (20.00%) MPLS
3 1 (20.00%) SMTP
3 1 (20.00%) SSL
3 1 (20.00%) WAN
3 1 (20.00%) Wireless
Job Titles
1 5 (100.00%) IT Support
2 4 (80.00%) IT Engineer
2 4 (80.00%) IT Support Engineer
2 4 (80.00%) Support Engineer
3 1 (20.00%) 2nd Line Support
3 1 (20.00%) Exchange Support
3 1 (20.00%) Telephony Support
Miscellaneous
1 4 (80.00%) Analytical Skills
1 4 (80.00%) Driving Licence
2 1 (20.00%) Smartphone
Operating Systems
1 5 (100.00%) Windows
1 5 (100.00%) Windows 10
1 5 (100.00%) Windows Server
2 4 (80.00%) Windows Server 2003
2 4 (80.00%) Windows XP
3 1 (20.00%) Android
3 1 (20.00%) Windows 7
Programming Languages
1 1 (20.00%) SQL
Qualifications
1 4 (80.00%) PhD
System Software
1 5 (100.00%) Active Directory
2 4 (80.00%) VMware Infrastructure
2 4 (80.00%) XenServer
Systems Management
1 4 (80.00%) Backup Exec
1 4 (80.00%) XenMobile
Vendors
1 4 (80.00%) Cisco
1 4 (80.00%) Citrix
1 4 (80.00%) EMC
1 4 (80.00%) HP
1 4 (80.00%) IronPort
1 4 (80.00%) Microsoft
1 4 (80.00%) Palo Alto
1 4 (80.00%) Polycom
1 4 (80.00%) Veeam
1 4 (80.00%) VMware
2 1 (20.00%) Apple