The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for DSL skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited DSL over the 3 months to 22 June 2017 with a comparison to the same period in the previous 2 years.

Digital Subscriber Line (DSL)
London / City of London
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank - 256 303
Permanent jobs citing DSL 0 3 15
As % of all permanent IT jobs advertised in the City of London - 0.047% 0.14%
As % of the Communications & Networking category - 0.28% 0.97%
Number of salaries quoted 0 3 15
Median salary - £57,500 £45,000
Median salary % change year-on-year - +27.77%  
UK excluding London median salary £37,500 £33,750 £37,500
% change year-on-year +11.11% -10.00%  

DSL 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 847 1053 1552
As % of all permanent IT job vacancies advertised in the City of London 16.31% 16.51% 14.94%
Number of salaries quoted 745 919 1343
Median salary £55,000 £55,000 £52,500
Median salary % change year-on-year - +4.76%  
90% offered a salary of more than £30,000 £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

DSL
Job Vacancy Trend in the City of London

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

Job vacancy trend for DSL in the City of London

DSL
Salary Trend in the City of London

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

Salary trend for DSL in the City of London

For the 6 months to 22 June 2017, IT jobs citing DSL 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 DSL.

1 9 (90.00%) Cisco
2 8 (80.00%) VoIP
3 6 (60.00%) Windows
3 6 (60.00%) MPLS
3 6 (60.00%) Firewall
4 5 (50.00%) HP
4 5 (50.00%) Juniper
4 5 (50.00%) Microsoft
4 5 (50.00%) Ethernet
4 5 (50.00%) TCP/IP
4 5 (50.00%) VPN
4 5 (50.00%) Windows 10
4 5 (50.00%) Windows Server
5 4 (40.00%) Palo Alto
5 4 (40.00%) Analytical Skills
5 4 (40.00%) Driving Licence
5 4 (40.00%) XenServer
5 4 (40.00%) Veeam
5 4 (40.00%) XenMobile
5 4 (40.00%) Skype for Business
5 4 (40.00%) DNS
5 4 (40.00%) WAN
5 4 (40.00%) DHCP
5 4 (40.00%) PhD
5 4 (40.00%) Windows XP
5 4 (40.00%) MS Exchange
5 4 (40.00%) ADSL
5 4 (40.00%) LAN
5 4 (40.00%) SAN
5 4 (40.00%) EMC

DSL
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 4 (40.00%) Exchange Server 2007
1 4 (40.00%) MS Exchange
1 4 (40.00%) Skype for Business
Applications
1 4 (40.00%) Microsoft Office
Communications & Networking
1 8 (80.00%) VoIP
2 6 (60.00%) Firewall
2 6 (60.00%) MPLS
3 5 (50.00%) Ethernet
3 5 (50.00%) TCP/IP
3 5 (50.00%) VPN
4 4 (40.00%) ADSL
4 4 (40.00%) Cisco ASA
4 4 (40.00%) DHCP
4 4 (40.00%) DNS
4 4 (40.00%) LAN
4 4 (40.00%) SAN
4 4 (40.00%) VPLS
4 4 (40.00%) WAN
5 2 (20.00%) BGP
5 2 (20.00%) IPv4
5 2 (20.00%) IPv6
5 2 (20.00%) OSPF
6 1 (10.00%) L2TP
6 1 (10.00%) SNMP
General
1 1 (10.00%) Telecoms
Job Titles
1 5 (50.00%) Support Engineer
2 4 (40.00%) IT Engineer
2 4 (40.00%) IT Support
2 4 (40.00%) IT Support Engineer
3 3 (30.00%) Presales Engineer
3 3 (30.00%) Presales Network Engineer
4 2 (20.00%) Network Engineer
5 1 (10.00%) Account Manager
5 1 (10.00%) Juniper Engineer
5 1 (10.00%) Network Support
5 1 (10.00%) Network Support Engineer
5 1 (10.00%) Senior Network Engineer
5 1 (10.00%) Senior Network Support
5 1 (10.00%) Senior Network Support Engineer
5 1 (10.00%) Senior Support Engineer
5 1 (10.00%) Technical Account Manager
5 1 (10.00%) Technical Manager
Miscellaneous
1 4 (40.00%) Analytical Skills
1 4 (40.00%) Driving Licence
2 1 (10.00%) Computer Science
2 1 (10.00%) User Experience
Operating Systems
1 6 (60.00%) Windows
2 5 (50.00%) Windows 10
2 5 (50.00%) Windows Server
3 4 (40.00%) Windows Server 2003
3 4 (40.00%) Windows XP
4 2 (20.00%) Linux
5 1 (10.00%) CentOS
5 1 (10.00%) Windows 7
5 1 (10.00%) Windows 8
5 1 (10.00%) Windows Server 2008
5 1 (10.00%) Windows Server 2012
Processes & Methodologies
1 3 (30.00%) Presales
2 1 (10.00%) Open Source
2 1 (10.00%) Time Management
Qualifications
1 4 (40.00%) PhD
2 2 (20.00%) CCNP
2 2 (20.00%) Cisco Certification
3 1 (10.00%) Computer Science Degree
3 1 (10.00%) Degree
System Software
1 4 (40.00%) Active Directory
1 4 (40.00%) VMware Infrastructure
1 4 (40.00%) XenServer
2 1 (10.00%) vSphere
Systems Management
1 4 (40.00%) Backup Exec
1 4 (40.00%) XenMobile
2 1 (10.00%) Cisco CUCM
Vendors
1 9 (90.00%) Cisco
2 5 (50.00%) HP
2 5 (50.00%) Juniper
2 5 (50.00%) Microsoft
3 4 (40.00%) Citrix
3 4 (40.00%) EMC
3 4 (40.00%) IronPort
3 4 (40.00%) Palo Alto
3 4 (40.00%) Polycom
3 4 (40.00%) Veeam
3 4 (40.00%) VMware
4 1 (10.00%) Aerohive Networks
4 1 (10.00%) Avaya
4 1 (10.00%) Brocade
4 1 (10.00%) Cyberoam
4 1 (10.00%) Draytek
4 1 (10.00%) Fortinet
4 1 (10.00%) Meraki
4 1 (10.00%) Red Hat
4 1 (10.00%) SonicWALL
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