The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for ISDN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ISDN over the 3 months to 24 June 2017 with a comparison to the same period in the previous 2 years.

Integrated Service Digital Network (ISDN)
England / London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 590 611 668
Rank change year-on-year +21 +57  
Permanent jobs citing ISDN 26 33 11
As % of all permanent IT jobs advertised in London 0.072% 0.082% 0.024%
As % of the Communications & Networking category 0.45% 0.51% 0.15%
Number of salaries quoted 26 18 8
Median salary £55,000 £57,500 £41,250
Median salary % change year-on-year -4.34% +39.39%  
90% offered a salary of more than £33,750 £45,000 £30,000
10% offered a salary of more than £60,000 £86,500 £57,500
UK excluding London median salary £41,500 £42,500 £50,000
% change year-on-year -2.35% -15.00%  

ISDN 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 London with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
London
Permanent job vacancies with a requirement for communications and computer networking skills 5787 6445 7263
As % of all permanent IT job vacancies advertised in London 15.97% 16.09% 16.17%
Number of salaries quoted 4776 5565 6175
Median salary £55,000 £55,000 £50,000
Median salary % change year-on-year - +10.00%  
90% offered a salary of more than £32,500 £31,500 £30,000
10% offered a salary of more than £75,000 £75,000 £75,000
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

ISDN
Job Vacancy Trend in London

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

Job vacancy trend for ISDN in London

ISDN
Salary Trend in London

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

Salary trend for ISDN in London

ISDN
Salary Histogram in London

The salary distribution of IT jobs citing ISDN in London over the 3 months to 24 June 2017.

Salary histogram for ISDN in London

ISDN
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the London region over the 3 months to 24 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +20 5 £60,000 +4.34%
Docklands, London - 3 £32,500 -
Croydon +5 1 £53,000 +6.00%
ISDN
England

For the 6 months to 24 June 2017, IT jobs citing ISDN 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 London region with a requirement for ISDN.

1 46 (71.88%) Microsoft
2 41 (64.06%) Cisco
3 38 (59.38%) MS Exchange
4 30 (46.88%) Skype for Business
4 30 (46.88%) Skype
5 29 (45.31%) Unified Communications
6 25 (39.06%) Active Directory
7 24 (37.50%) Firewall
8 23 (35.94%) ITIL
9 22 (34.38%) Windows
9 22 (34.38%) VoIP
9 22 (34.38%) Finance
10 21 (32.81%) Video Conferencing
10 21 (32.81%) Office 365
11 20 (31.25%) Windows Server
11 20 (31.25%) WAN
12 19 (29.69%) Sonus
13 18 (28.13%) Windows Server 2008
13 18 (28.13%) Mentoring
13 18 (28.13%) LAN
13 18 (28.13%) Cisco Certification
13 18 (28.13%) Polycom
13 18 (28.13%) Time Management
14 17 (26.56%) VMware
14 17 (26.56%) User Experience
14 17 (26.56%) VMware Infrastructure
14 17 (26.56%) Virtual Team
15 16 (25.00%) Cisco CUCM
15 16 (25.00%) Windows Server 2012
16 15 (23.44%) TCP/IP

ISDN
Co-occurring IT Skills in 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 38 (59.38%) MS Exchange
2 30 (46.88%) Skype for Business
3 9 (14.06%) Exchange Server 2010
3 9 (14.06%) IIS
4 8 (12.50%) SharePoint
5 3 (4.69%) SharePoint Server
6 1 (1.56%) CMS
6 1 (1.56%) Exchange Server 2007
6 1 (1.56%) Exchange Server 2013
Applications
1 11 (17.19%) Microsoft Office
Cloud Services
1 21 (32.81%) Office 365
2 1 (1.56%) PaaS
Communications & Networking
1 30 (46.88%) Skype
2 29 (45.31%) Unified Communications
3 24 (37.50%) Firewall
4 22 (34.38%) VoIP
5 20 (31.25%) WAN
6 18 (28.13%) LAN
7 15 (23.44%) TCP/IP
8 13 (20.31%) LDAP
9 10 (15.63%) MPLS
9 10 (15.63%) VPN
10 9 (14.06%) Cisco Nexus
10 9 (14.06%) IPsec
10 9 (14.06%) VLAN
11 8 (12.50%) Cisco ASA
11 8 (12.50%) IP Telephony
12 6 (9.38%) DHCP
12 6 (9.38%) DNS
12 6 (9.38%) Wireless
13 5 (7.81%) Ethernet
13 5 (7.81%) SSL
Database & Business Intelligence
1 2 (3.13%) SQL Server
1 2 (3.13%) SQL Server 2008
1 2 (3.13%) SQL Server 2012
2 1 (1.56%) SQL Server 2005
General
1 22 (34.38%) Finance
2 1 (1.56%) Legal
2 1 (1.56%) Retail
2 1 (1.56%) Telecoms
Job Titles
1 30 (46.88%) Unified Communications Engineer
2 24 (37.50%) Lync Engineer
3 11 (17.19%) Network Engineer
4 8 (12.50%) Administrator
4 8 (12.50%) Systems Administrator
5 6 (9.38%) 3rd Line Engineer
5 6 (9.38%) 3rd Line Network Engineer
5 6 (9.38%) Infrastructure Support
6 5 (7.81%) Cisco Engineer
6 5 (7.81%) Cisco Network Engineer
6 5 (7.81%) Infrastructure Engineer
6 5 (7.81%) Support Engineer
7 4 (6.25%) Analyst
7 4 (6.25%) Voice Engineer
8 3 (4.69%) Consultant
8 3 (4.69%) Infrastructure Analyst
8 3 (4.69%) Infrastructure Support Analyst
8 3 (4.69%) Infrastructure Support Engineer
8 3 (4.69%) Support Analyst
8 3 (4.69%) Telephony Engineer
Libraries, Frameworks & Software Standards
1 9 (14.06%) 802.1X
2 3 (4.69%) XMPP
Miscellaneous
1 21 (32.81%) Video Conferencing
2 17 (26.56%) User Experience
2 17 (26.56%) Virtual Team
3 6 (9.38%) Data Centre
4 3 (4.69%) Analytical Skills
5 1 (1.56%) Digital Signage
5 1 (1.56%) e-Health
5 1 (1.56%) Streaming Media
Operating Systems
1 22 (34.38%) Windows
2 20 (31.25%) Windows Server
3 18 (28.13%) Windows Server 2008
4 16 (25.00%) Windows Server 2012
5 8 (12.50%) Windows 7
6 2 (3.13%) Linux
7 1 (1.56%) Red Hat Enterprise Linux
7 1 (1.56%) Windows Server 2003
7 1 (1.56%) Windows XP
Processes & Methodologies
1 23 (35.94%) ITIL
2 18 (28.13%) Mentoring
2 18 (28.13%) Time Management
3 8 (12.50%) Change Management
3 8 (12.50%) Configuration Management
3 8 (12.50%) Contingency Planning
3 8 (12.50%) Disaster Recovery
3 8 (12.50%) Information Security
3 8 (12.50%) Server Virtualisation
4 7 (10.94%) Presales
5 5 (7.81%) Customer Requirements
5 5 (7.81%) Trend Analysis
6 4 (6.25%) Project Management
7 3 (4.69%) Kalman Filter
7 3 (4.69%) Virtual Infrastructure
8 2 (3.13%) Asset Management
8 2 (3.13%) Continuous Improvement
8 2 (3.13%) CRM
8 2 (3.13%) Network Design
8 2 (3.13%) WFM
Programming Languages
1 10 (15.63%) PowerShell
1 10 (15.63%) SQL
2 2 (3.13%) C
Qualifications
1 18 (28.13%) Cisco Certification
2 11 (17.19%) CCNA
3 8 (12.50%) CCNP
3 8 (12.50%) MCITP
3 8 (12.50%) MCSE
3 8 (12.50%) Microsoft Certification
4 5 (7.81%) CCIE
5 1 (1.56%) Degree
5 1 (1.56%) DV Cleared
5 1 (1.56%) JNCIA
5 1 (1.56%) JNCIE
5 1 (1.56%) JNCIP
5 1 (1.56%) JNCIS
5 1 (1.56%) Security Cleared
Quality Assurance & Compliance
1 8 (12.50%) PCI DSS
System Software
1 25 (39.06%) Active Directory
2 17 (26.56%) VMware Infrastructure
3 8 (12.50%) Hyper-V
3 8 (12.50%) Microsoft Virtual Server
3 8 (12.50%) Virtual Servers
4 4 (6.25%) VMware ESXi
5 1 (1.56%) Firmware
5 1 (1.56%) Terminal Services
5 1 (1.56%) Virtual Machines
5 1 (1.56%) XenApp
Systems Management
1 16 (25.00%) Cisco CUCM
2 5 (7.81%) FortiGate
3 1 (1.56%) Cisco UCCE
3 1 (1.56%) WSUS
3 1 (1.56%) XenMobile
Vendors
1 46 (71.88%) Microsoft
2 41 (64.06%) Cisco
3 19 (29.69%) Sonus
4 18 (28.13%) Polycom
5 17 (26.56%) VMware
6 8 (12.50%) Avaya
7 7 (10.94%) IronPort
8 6 (9.38%) IPFX
9 5 (7.81%) Sourcefire
10 4 (6.25%) Citrix
11 3 (4.69%) HP
11 3 (4.69%) Meraki
11 3 (4.69%) Palo Alto
12 2 (3.13%) CheckPoint
12 2 (3.13%) Mitel
12 2 (3.13%) Verint
13 1 (1.56%) Bloomberg
13 1 (1.56%) Blue Coat
13 1 (1.56%) Juniper
13 1 (1.56%) Tandberg
London
DCV Technologies
Salary: From £48,000 to £60,000 per annum
Posted: 2 days ago
London
Marks Sattin
Salary: £45000 - £50000 per annum
Posted: 9 days ago