The table below looks at the statistics for ISDN skills in IT jobs advertised for the London region. Included is a guide to the average salaries offered in IT jobs that have cited ISDN over the 3 months to 27 March 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
27 Mar 2015
Same period 2014 Same period 2013
Integrated Service Digital Network (ISDN)
Rank 574 608 559
Rank change year-on-year
+34 -49
Permanent jobs citing ISDN 33 39 48
As % of all permanent IT jobs located in London 0.077% 0.086% 0.11%
As % of the Communications & Networking category 0.44% 0.55% 0.57%
Number of salaries quoted 18 31 33
Average salary £38,750 £40,000 £45,000
Average salary % change year-on-year
-3.12% -11.11%
90% offered a salary of more than £27,200 £21,000 £31,700
10% offered a salary of more than £47,500 £55,000 £75,000
UK excluding London average salary £42,500 £35,000 £30,000
% change year-on-year
+21.42% +16.66%
ISDN
England

The following table is for comparison with the above and provides statistics for the entire Communications & Networking category in permanent jobs advertised in the London region.

Communications & Networking Category
London
Permanent IT job ads with a match in the
Communications & Networking category
7558 7119 8382
As % of all permanent IT jobs located in London 17.66% 15.67% 18.89%
Number of salaries quoted 6292 5825 6903
Average salary £51,500 £50,000 £50,000
Average salary % change year-on-year
+3.00% -
90% offered a salary of more than £30,000 £30,000 £32,500
10% offered a salary of more than £75,000 £70,000 £70,000
UK excluding London average salary £41,500 £40,000 £40,000
% change year-on-year
+3.75% -

ISDN
Jobs Demand Trend in London

This chart provides a 3-month moving total of permanent IT jobs citing ISDN across the London region as a proportion of the total demand within the Communications & Networking category.

ISDN Jobs Demand Trend in London

ISDN
Salary Trend in London

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

ISDN Salary Trend in London

ISDN
Salary Histogram in London

This chart provides a salary histogram for IT jobs citing ISDN across the London region over the 3 months to 27 March 2015.

ISDN Salary Histogram in London

ISDN
Job Locations in London

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing ISDN within the London region over the 3 months to 27 March 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London -2 3 £47,500 +58.33%
ISDN
England

ISDN
Top 30 Related IT Skills in London

For the 6 months to 27 March 2015, IT jobs across the London region citing ISDN also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited ISDN.

1 40 (54.05%) Cisco Certification
2 36 (48.65%) Cisco
3 34 (45.95%) Microsoft
3 34 (45.95%) ITIL
4 33 (44.59%) CCNA
5 32 (43.24%) CCNP
5 32 (43.24%) WAN
6 31 (41.89%) LAN
7 30 (40.54%) Firewall
8 29 (39.19%) VMware
9 27 (36.49%) VMware Infrastructure
10 26 (35.14%) VoIP
11 24 (32.43%) Wireless
12 23 (31.08%) Active Directory
12 23 (31.08%) Unified Communications
13 22 (29.73%) Microsoft Certification
13 22 (29.73%) MPLS
13 22 (29.73%) PBX
13 22 (29.73%) TCP/IP
14 20 (27.03%) VPN
14 20 (27.03%) Windows
14 20 (27.03%) MCSE
14 20 (27.03%) VLAN
15 19 (25.68%) Cisco CUCM
16 18 (24.32%) Lync
16 18 (24.32%) MS Excel
17 17 (22.97%) MCSA
17 17 (22.97%) MS Exchange
17 17 (22.97%) OSPF
17 17 (22.97%) BGP

ISDN
Top Related IT Skills in London by Category

For the 6 months to 27 March 2015, IT jobs across the London region citing ISDN also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited ISDN. Up to 20 skills are shown per category.

Application Platforms
1 18 (24.32%) Lync
2 17 (22.97%) MS Exchange
3 12 (16.22%) Confluence
4 4 (5.41%) Exchange Server 2007
4 4 (5.41%) Exchange Server 2010
5 3 (4.05%) IIS
6 1 (1.35%) Exchange Server 2013
Applications
1 18 (24.32%) MS Excel
2 1 (1.35%) MS Project
2 1 (1.35%) MS Office
Cloud Services
1 12 (16.22%) PaaS
1 12 (16.22%) Office 365
Communications & Networking
1 32 (43.24%) WAN
2 31 (41.89%) LAN
3 30 (40.54%) Firewall
4 26 (35.14%) VoIP
5 24 (32.43%) Wireless
6 23 (31.08%) Unified Communications
7 22 (29.73%) MPLS
7 22 (29.73%) PBX
7 22 (29.73%) TCP/IP
8 20 (27.03%) VPN
8 20 (27.03%) VLAN
9 17 (22.97%) Cisco ASA
9 17 (22.97%) OSPF
9 17 (22.97%) BGP
9 17 (22.97%) Internet
10 16 (21.62%) DNS
11 15 (20.27%) Ethernet
12 14 (18.92%) Multicast
13 13 (17.57%) FTP
14 12 (16.22%) HTTP
Database & Business Intelligence
1 1 (1.35%) SQL Server
1 1 (1.35%) SQL Server 2005
1 1 (1.35%) SQL Server 2008
Development Applications
1 12 (16.22%) JIRA
General
1 12 (16.22%) Retail
2 5 (6.76%) Telecoms
3 3 (4.05%) Finance
4 2 (2.70%) Banking
4 2 (2.70%) Billing
4 2 (2.70%) Mandarin Language
4 2 (2.70%) French Language
4 2 (2.70%) German Language
4 2 (2.70%) Italian Language
4 2 (2.70%) Japanese Language
4 2 (2.70%) Spanish Language
Job Titles
1 20 (27.03%) Support Engineer
2 17 (22.97%) Network Engineer
3 15 (20.27%) Infrastructure Engineer
4 13 (17.57%) Infrastructure Support Engineer
5 12 (16.22%) 3rd Line Support
6 11 (14.86%) Systems Engineer
6 11 (14.86%) Linux Engineer
6 11 (14.86%) Linux Systems Engineer
7 8 (10.81%) Technical Support
8 7 (9.46%) Voice Engineer
9 5 (6.76%) Technical Engineer
9 5 (6.76%) Telephony Engineer
9 5 (6.76%) Technical Support Engineer
9 5 (6.76%) Consultant
10 4 (5.41%) Project Manager
10 4 (5.41%) Analyst
10 4 (5.41%) Infrastructure Manager
10 4 (5.41%) Technology Consultant
11 3 (4.05%) Cisco Support Engineer
11 3 (4.05%) Service Desk Engineer
Libraries, Frameworks & Software Standards
1 1 (1.35%) CSS
Miscellaneous
1 12 (16.22%) Wiki
2 8 (10.81%) AVVID
3 4 (5.41%) IVR
4 3 (4.05%) Mathematics
4 3 (4.05%) Enterprise Software
4 3 (4.05%) User Experience
5 2 (2.70%) PMI
6 1 (1.35%) Social Network
6 1 (1.35%) Hedge funds
6 1 (1.35%) SecurID
6 1 (1.35%) Clustering
Operating Systems
1 20 (27.03%) Windows
2 12 (16.22%) Linux
2 12 (16.22%) Ubuntu
2 12 (16.22%) CentOS
3 7 (9.46%) Windows 8
3 7 (9.46%) Windows Server 2012
4 4 (5.41%) Windows 7
5 3 (4.05%) Windows Server 2008
6 1 (1.35%) Mac OS X
6 1 (1.35%) Windows Server 2003
Processes & Methodologies
1 34 (45.95%) ITIL
2 16 (21.62%) Mentoring
3 13 (17.57%) Performance Tuning
3 13 (17.57%) E-Commerce
4 12 (16.22%) Configuration Management
4 12 (16.22%) Coaching
5 11 (14.86%) Project Management
6 9 (12.16%) Load Balancing
7 7 (9.46%) Change Management
8 6 (8.11%) Data Analysis
9 4 (5.41%) Migration
9 4 (5.41%) Network Design
10 3 (4.05%) Cyber Security
10 3 (4.05%) Service Delivery
11 2 (2.70%) PRINCE2
11 2 (2.70%) Problem Management
11 2 (2.70%) Matrix Management
11 2 (2.70%) Communications Security
11 2 (2.70%) Stakeholder Management
11 2 (2.70%) Asset Management
Programming Languages
1 12 (16.22%) Python
1 12 (16.22%) Bash Shell
2 3 (4.05%) C
3 2 (2.70%) SQL
Qualifications
1 40 (54.05%) Cisco Certification
2 33 (44.59%) CCNA
3 32 (43.24%) CCNP
4 22 (29.73%) Microsoft Certification
5 20 (27.03%) MCSE
6 17 (22.97%) MCSA
7 13 (17.57%) JNCIA
8 4 (5.41%) Degree
8 4 (5.41%) MCP
9 3 (4.05%) LPIC
9 3 (4.05%) MCTS
10 2 (2.70%) PMP
10 2 (2.70%) PMI Certification
11 1 (1.35%) CCDP
11 1 (1.35%) CCIE
11 1 (1.35%) CCSP
Quality Assurance & Compliance
1 7 (9.46%) SLA
System Software
1 27 (36.49%) VMware Infrastructure
2 23 (31.08%) Active Directory
3 12 (16.22%) VMware ESX
3 12 (16.22%) VirtualBox
4 2 (2.70%) XenApp
5 1 (1.35%) VMware ESXi
5 1 (1.35%) Hyper-V
5 1 (1.35%) Microsoft Virtual Server
5 1 (1.35%) ISA Server
Systems Management
1 19 (25.68%) Cisco CUCM
2 14 (18.92%) CiscoWorks
2 14 (18.92%) SCOM
3 12 (16.22%) Puppet
3 12 (16.22%) Nagios
3 12 (16.22%) Opscode Chef
4 1 (1.35%) WSUS
Vendors
1 36 (48.65%) Cisco
2 34 (45.95%) Microsoft
3 29 (39.19%) VMware
4 17 (22.97%) Juniper
5 14 (18.92%) SolarWinds
6 12 (16.22%) Red Hat
6 12 (16.22%) hybris
6 12 (16.22%) AppDynamics
7 8 (10.81%) CheckPoint
7 8 (10.81%) IronPort
8 4 (5.41%) Mitel
8 4 (5.41%) Avaya
9 3 (4.05%) Blue Coat
9 3 (4.05%) Verint
10 2 (2.70%) Citrix
10 2 (2.70%) BT
11 1 (1.35%) 3Com
11 1 (1.35%) Apple
11 1 (1.35%) HP
11 1 (1.35%) Brocade