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 4 March 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
4 Mar 2015
Same period 2014 Same period 2013
Integrated Service Digital Network (ISDN)
Rank 567 597 558
Rank change year-on-year
+30 -39
Permanent jobs citing ISDN 36 32 56
As % of all permanent IT jobs located in London 0.086% 0.074% 0.13%
As % of the Communications & Networking category 0.49% 0.47% 0.67%
Number of salaries quoted 23 22 36
Average salary £45,000 £46,250 £47,500
Average salary % change year-on-year
-2.70% -2.63%
90% offered a salary of more than £28,000 £21,150 £32,000
10% offered a salary of more than £47,500 £55,000 £77,500
UK excluding London average salary £40,000 £35,000 £31,250
% change year-on-year
+14.28% +12.00%
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
7359 6867 8419
As % of all permanent IT jobs located in London 17.58% 15.82% 19.05%
Number of salaries quoted 6134 5565 7033
Average salary £50,000 £50,000 £50,000
90% offered a salary of more than £30,000 £30,000 £32,500
10% offered a salary of more than £72,500 £70,000 £72,500
UK excluding London average salary £40,000 £40,000 £40,000

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 4 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 4 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 +3 8 £47,500 +26.66%
ISDN
England

ISDN
Top 30 Related IT Skills in London

For the 6 months to 4 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 50 (53.76%) Cisco Certification
2 46 (49.46%) WAN
3 44 (47.31%) Cisco
4 43 (46.24%) CCNP
5 42 (45.16%) Microsoft
5 42 (45.16%) LAN
6 41 (44.09%) CCNA
6 41 (44.09%) Firewall
7 38 (40.86%) Unified Communications
8 37 (39.78%) MPLS
9 34 (36.56%) Wireless
9 34 (36.56%) ITIL
10 30 (32.26%) VPN
11 28 (30.11%) Active Directory
11 28 (30.11%) VMware
12 27 (29.03%) OSPF
12 27 (29.03%) BGP
12 27 (29.03%) Juniper
12 27 (29.03%) VoIP
12 27 (29.03%) Cisco ASA
13 26 (27.96%) Cisco CUCM
14 25 (26.88%) VMware Infrastructure
14 25 (26.88%) VLAN
15 24 (25.81%) Microsoft Certification
16 22 (23.66%) MCSE
16 22 (23.66%) Lync
17 21 (22.58%) MS Exchange
17 21 (22.58%) Ethernet
18 20 (21.51%) TCP/IP
18 20 (21.51%) PBX

ISDN
Top Related IT Skills in London by Category

For the 6 months to 4 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 22 (23.66%) Lync
2 21 (22.58%) MS Exchange
3 7 (7.53%) Confluence
4 4 (4.30%) Exchange Server 2010
4 4 (4.30%) Exchange Server 2007
5 3 (3.23%) IIS
5 3 (3.23%) SharePoint
6 2 (2.15%) Exchange Server 2013
7 1 (1.08%) SharePoint Server
Applications
1 20 (21.51%) MS Excel
2 2 (2.15%) MS Project
3 1 (1.08%) MS Office
Cloud Services
1 7 (7.53%) Office 365
1 7 (7.53%) PaaS
Communications & Networking
1 46 (49.46%) WAN
2 42 (45.16%) LAN
3 41 (44.09%) Firewall
4 38 (40.86%) Unified Communications
5 37 (39.78%) MPLS
6 34 (36.56%) Wireless
7 30 (32.26%) VPN
8 27 (29.03%) OSPF
8 27 (29.03%) BGP
8 27 (29.03%) VoIP
8 27 (29.03%) Cisco ASA
9 25 (26.88%) VLAN
10 21 (22.58%) Ethernet
11 20 (21.51%) TCP/IP
11 20 (21.51%) PBX
11 20 (21.51%) Internet
12 18 (19.35%) Multicast
13 12 (12.90%) DNS
14 11 (11.83%) HSRP
14 11 (11.83%) ADSL
Database & Business Intelligence
1 2 (2.15%) SQL Server
2 1 (1.08%) PostgreSQL
2 1 (1.08%) MySQL
2 1 (1.08%) SQL Server 2005
2 1 (1.08%) SQL Server 2012
2 1 (1.08%) SQL Server 2008
Development Applications
1 7 (7.53%) JIRA
2 1 (1.08%) Xcode
2 1 (1.08%) Git (software)
General
1 16 (17.20%) Telecoms
2 8 (8.60%) Billing
3 7 (7.53%) Finance
3 7 (7.53%) Retail
4 6 (6.45%) Mandarin Language
4 6 (6.45%) French Language
4 6 (6.45%) German Language
4 6 (6.45%) Italian Language
4 6 (6.45%) Japanese Language
4 6 (6.45%) Spanish Language
5 2 (2.15%) Banking
Job Titles
1 22 (23.66%) Support Engineer
2 21 (22.58%) Network Engineer
3 18 (19.35%) Infrastructure Engineer
4 16 (17.20%) Infrastructure Support Engineer
5 14 (15.05%) 3rd Line Support
6 8 (8.60%) Technical Support
6 8 (8.60%) Project Manager
7 7 (7.53%) Systems Engineer
7 7 (7.53%) Telephony Engineer
7 7 (7.53%) Linux Engineer
7 7 (7.53%) Voice Engineer
8 6 (6.45%) PRINCE2 Project Manager
8 6 (6.45%) Programme Manager
9 5 (5.38%) Technical Support Engineer
9 5 (5.38%) Consultant
9 5 (5.38%) Technical Engineer
9 5 (5.38%) Infrastructure Manager
10 4 (4.30%) Technology Consultant
10 4 (4.30%) Cisco Engineer
10 4 (4.30%) Analyst
Libraries, Frameworks & Software Standards
1 1 (1.08%) CSS
1 1 (1.08%) iOS SDK
Miscellaneous
1 10 (10.75%) AVVID
2 8 (8.60%) IVR
3 7 (7.53%) Wiki
4 6 (6.45%) PMI
5 4 (4.30%) Mathematics
6 3 (3.23%) User Experience
6 3 (3.23%) SecurID
6 3 (3.23%) Enterprise Software
7 1 (1.08%) Clustering
7 1 (1.08%) Physics
7 1 (1.08%) Social Network
7 1 (1.08%) Hedge funds
Operating Systems
1 20 (21.51%) Windows
2 9 (9.68%) Windows 8
3 8 (8.60%) Windows Server 2012
3 8 (8.60%) Ubuntu
3 8 (8.60%) Linux
4 7 (7.53%) CentOS
5 5 (5.38%) Windows Server 2008
6 4 (4.30%) Windows 7
7 3 (3.23%) Windows Server 2003
8 2 (2.15%) Windows Vista
8 2 (2.15%) Windows XP
9 1 (1.08%) Fedora
9 1 (1.08%) UNIX
9 1 (1.08%) Windows NT
9 1 (1.08%) Mac OS X
9 1 (1.08%) Oracle Linux
9 1 (1.08%) Apple iOS
9 1 (1.08%) Android
Processes & Methodologies
1 34 (36.56%) ITIL
2 20 (21.51%) Project Management
3 12 (12.90%) Load Balancing
4 11 (11.83%) Mentoring
5 10 (10.75%) Change Management
6 8 (8.60%) Performance Tuning
6 8 (8.60%) Data Analysis
6 8 (8.60%) E-Commerce
7 7 (7.53%) Configuration Management
7 7 (7.53%) Coaching
8 6 (6.45%) Matrix Management
8 6 (6.45%) Communications Security
8 6 (6.45%) PRINCE2
9 5 (5.38%) Service Delivery
9 5 (5.38%) Network Monitoring
9 5 (5.38%) Capacity Planning
10 4 (4.30%) Network Design
10 4 (4.30%) Stakeholder Management
10 4 (4.30%) Kalman Filter
11 3 (3.23%) Line Management
Programming Languages
1 8 (8.60%) Python
2 7 (7.53%) Bash Shell
3 4 (4.30%) C
3 4 (4.30%) SQL
4 1 (1.08%) Objective-C
4 1 (1.08%) C++
4 1 (1.08%) Java
Qualifications
1 50 (53.76%) Cisco Certification
2 43 (46.24%) CCNP
3 41 (44.09%) CCNA
4 24 (25.81%) Microsoft Certification
5 22 (23.66%) MCSE
6 20 (21.51%) MCSA
7 16 (17.20%) JNCIA
8 6 (6.45%) PMP
8 6 (6.45%) PMI Certification
9 4 (4.30%) Degree
9 4 (4.30%) MCP
10 3 (3.23%) CCSP
10 3 (3.23%) LPIC
11 2 (2.15%) MCTS
12 1 (1.08%) CCDP
12 1 (1.08%) CCIE
12 1 (1.08%) Avaya Certification
12 1 (1.08%) VCP4
Quality Assurance & Compliance
1 13 (13.98%) SLA
System Software
1 28 (30.11%) Active Directory
2 25 (26.88%) VMware Infrastructure
3 7 (7.53%) VMware ESX
3 7 (7.53%) VirtualBox
4 2 (2.15%) XenApp
4 2 (2.15%) VMware ESXi
5 1 (1.08%) ISA Server
5 1 (1.08%) Microsoft Virtual Server
5 1 (1.08%) Kamailio
5 1 (1.08%) Hyper-V
Systems Management
1 26 (27.96%) Cisco CUCM
2 18 (19.35%) CiscoWorks
2 18 (19.35%) SCOM
3 7 (7.53%) Nagios
3 7 (7.53%) Opscode Chef
3 7 (7.53%) Puppet
4 2 (2.15%) Backup Exec
5 1 (1.08%) WSUS
Vendors
1 44 (47.31%) Cisco
2 42 (45.16%) Microsoft
3 28 (30.11%) VMware
4 27 (29.03%) Juniper
5 18 (19.35%) SolarWinds
6 10 (10.75%) CheckPoint
6 10 (10.75%) IronPort
7 8 (8.60%) Avaya
8 7 (7.53%) Red Hat
8 7 (7.53%) Verint
8 7 (7.53%) hybris
8 7 (7.53%) AppDynamics
9 5 (5.38%) Blue Coat
9 5 (5.38%) Mitel
10 4 (4.30%) BT
11 3 (3.23%) Citrix
11 3 (3.23%) F5
11 3 (3.23%) Proofpoint
12 2 (2.15%) Symantec
13 1 (1.08%) Websense
London
Salmon Limited
Salary: Market Rates + Benefits
Posted: Yesterday